Model 329 Multiaxial Spindle-Coupled Road Simulators
The ultimate testing solution for the most demanding road simulation challenges

T H E I NDU STRY-LEA D I N G MTS M ODEL 3 2 9 SPINDL E- COUPL ED ROAD
S I M ULATO R PRO VI DES U N MAT CHE D SIMULAT ION ACCURACY AND
R E P E ATABLE REPRO D U CTI O N OF T HE W ORLD’S MOST CHALLE NGINGP R O V I N G GRO U N D ROA D SURFACE S, MANE UVE RS AND E VE NT S.

2Meeting Your Most Demanding Road Simulation Challenges

M U LTIA X IA L SIMU LATIO N

Model 329 road simulators are multiaxial vehicle
loading systems optimized to deliver accurate
test results. You can run road simulation tests
with six-degree-of-freedom control of theseforces and moments per corner:»

Vertical»

Lateral»Longitudinal»

Brake/drive torque»Camber moment»

Steer moment»

Steer displacement (optional)»

Steering wheel displacement (optional)

MTS Model 329 Spindle-Coupled Road
Simulators are MTS’ advanced solution
to the automotive industry’s vehicle
development needs and challenges. With
these road simulators, up to six degrees
of freedom are coupled with the mostadvanced durability testing capabilities
and the highest laboratory simulation
accuracy available anywhere.
The Model 329 road simulator will save
you time and money. Significant time
progression provides faster lab testingtimes. Repeatability allows you toquantify your results and save even moretime. With the Model 329 simulator, you
can deliver your product to market faster.
Unmatched Accuracy

O F F ERIN G S IX D EG REES OF F REEDOMThe Model 329 6DOF system brings even moreof the test track into the laboratory. It offers
advanced capabilities never before available ina standard road simulation system. Previously,
vehicle laboratories worldwide employed MTS
Model 329 and earlier systems, controlling
three, four and five degrees of freedom. The
Model 329 simulator is the first road simulator
for passenger cars that offers six-degree-offreedom control.
Advantages of the MTS Model 329 6DOF

By simulating the multiaxial inputs tothe vehicle, Model 329 road simulators
replicate the true multiaxial stress stateof the structure at any instant in time.
Through years of experience and designrefinement, MTS has developed roadsimulator technology that dependably andaccurately reproduces forces and moments
at the vehicle spindle and throughout theentire vehicle.

Ideal for Component Development

Because of the simulation accuracy
achieved with MTS road simulators, test
engineers can spin off component tests
as they identify critical subsystems forfurther, more detailed evaluation. Insteadof instrumenting a test vehicle and driving
it over the proving grounds, they can collectdata directly from the road simulator.
Proven in the Lab
The Model 329 road simulator is a productof more than 30 years of experience. MTS
is the pioneer of single and multiaxial
simulation, and with our Remote Parameter
Control™ (RPC®) software technology, wedeliver unmatched accuracy and control
options to your road simulation testing.
Responsive Service and Support
We are dedicated to providing the support
you need to keep your system in top
running condition. Our field service
engineers are experienced, thoroughly
trained and supported by a large
inventory of spare parts across theglobe. No matter where you are, you
are close to a knowledgeable MTS
service engineer who has immediate
access to replacement components.

Road Simulator»

Time and cost savings – It provides more

complete simulation information formodeling, analysis, design and virtual
testing because it completely reproduces
all multiaxial spindle loads. It also
eliminates uncontrolled responses,
resulting in faster system convergence.
»

Improved testing capabilities – It improves

simulation correlation for durability testing,provides greater available range of brakeclearance, and reduces the possibility ofinterference with smaller wheel housings
due to the straight vertical struts.

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Setting the Standard for Simulation Accuracy and Capability

TEST CO N FIG U R ATIO NS»

Floating Body (24 channels) –This full-vehicle test provides the mostaccurate overall stress distribution in thecomplete vehicle structure for nonmaneuvering events. The vehicle body isallowed to float, and all loads are reacted
by its inertia.
»

Fixed Body (12 channels) –This single-axle test produces accurateloads in the vehicle suspension, and allows
simulation of maneuvering events (braking
and cornering) along with rough roadsimulation. The vehicle body is grounded,or the suspension can be mounted into afixed reaction frame.
»

Semi-Floating Body (12+1 channels) –This single-axle test produces accurateloads in the vehicle suspension and a
portion of the vehicle body. One axle isgrounded through a yaw or yaw-twist
fixture while the body is allowed to float.
Simulation of braking events is possible inthis configuration.
»

Semi-Active Longitudinal Restraint –This full-vehicle test provides the mostaccurate overall stress distribution for
non-maneuvering events, and the best
overall simulation of braking events on afree body system. The vehicle body isallowed to float during rough road events,
and a longitudinal restraint locks thevehicle body for braking events.

4

Flexible Configuration Options
Meet Your Every NeedYour configuration options are wide openwith the Model 329 road simulator
technology. You can configure a single
corner as a quarter-car suspension
development system, two corners to test
a half-car or suspension subsystem, orfour corners to test a complete vehicle.
Whole vehicle testing using rough roadsurfaces is performed in the “floatingbody” mode. Four corners of Model 329
fixturing support the entire vehicle, andthe input forces are reacted by the inertiaof the specimen.
For suspension testing, where lowfrequency maneuvering events (suchas cornering and braking) contributesignificantly to damage, the vehicle bodyis grounded and testing is performed on
one or both axles. A “semi-floating” body
test involves grounding one axle throughthe spindles. This allows you to perform
real-time braking, maneuvering andrough road simulation on half of the car.
Model 329 6DOF systems are commerciallyavailable for a wide range of vehicle sizes
and applications – small to full-size
passenger cars, light trucks and evenheavy industrial vehicles. Our offerings
include a medium steer test system totest steering and suspension systems andcomponents, and a long stroke systemfor passenger cars and light trucks thatsimulates low-frequency, free-bodyhandling events.

Controller and software options for yourModel 329 road simulator integrate
seamlessly with other MTS products,
such as MTS MAST™ systems and MTS
Model 320 Tire-Coupled Road Simulators(“four posters”). You can get a complete
set of tools that addresses all your structural
testing needs, and can connect thesesystems through an internet network
to share results with modeling anddevelopment labs. MTS applicationengineers will work with you to help
determine which Model 329 roadsimulator options best support yourtesting objectives.
Model 329 6DOF System Overview

The Model 329 6DOF system provides
six-degree-of-freedom control of forces
and motions at each vehicle spindle:(1) vertical translation; (2) lateraltranslation; (3) longitudinal translation;(4) brake/drive torque; (5) camber
moment; and (6) steer moment. Byutilizing proven linkage-coupledtechnology with independent actuation,
the Model 329 6DOF system enables
accurate replication of the true multiaxial
stress state of vehicle subsystems andcomponents at any instant in time tosimulate the complex nonlinear events
required for meaningful durability
road simulation.

ACCURATE AND POWERFUL CONTROL CAPABILITIESWith the Model 329 6DOF system, roadsimulation has never been more precise:» Accurate reproduction of dynamic
tire loading» Accurate load distribution in
the specimen» Accurate load input vectors» Uncontrolled responses are eliminated,
resulting in:– Faster system convergence– Superior correlation from remote		transducers– No need to make judgment calls on
		 uncontrolled channels
Six-degree-of-freedom control at thespindle means that you can run yoursimulations without compromising theassumptions that typically govern four- andfive-degree-of-freedom simulations.

With six degrees of freedom:

Tested Systems and Subsystems» You can achieve force relationships/
fixed moments even for quasi-static
testing. This is because vehicle tire
rolling radius and input load offset willvary dynamically during road events.

1 Suspension
1.

» The acceleration of offset tire/wheel
inertia will not generate dynamic
spindle moments on the road, anduncontrolled simulator moment loads
will be correct.
» A rigid body spindle housing with six
control inputs will reliably generatefrequency-dependent loads at thespindle. This will eliminate phaseangles between spindle forces andmoments.

2 Suspension to body interface
2.
3 Body3.
4 Body-mounted components 		
4.
(mirrors, fuel tanks, battery mounts)
5 Interior parts (seats, IP, steering column)
5.
6 Exhaust system
6.
7 Drivetrain mounts (with drive7.
torque option)
8 Steering system (only with steering
8.
input option)

3
4

4

5

5

6

4

2

8
7

1

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Evolving to Deliver Superior Road Simulation Performance

For decades, MTS has continually
evaluated available technologies in its
quest to deliver the most accurate andusable replication of road conditions forlaboratory-based durability testing. Other
providers of testing solutions utilize direct
actuator-coupled (or hexapod) technology,
which comprises arrangements of six
identical, kinematically dependentactuators at each corner of the vehicle.
MTS has instead chosen to use applicationspecific, linkage-coupled technology. This
technology is characterized by arrangementsof kinematically independent actuators,
optimized to deliver inputs to each specificaxis. Systems employing kinematicallyindependent actuators allow for more
simple and direct measurement andmonitoring of dynamic loads, and therefore
provide more effective control during thereplication of complex and dynamic
nonlinear events.

MTS Model 326 3DOF System

MTS Model 326 3DOF System» Lightweight struts provided highfidelity response.
» Kinematic independent design
resulted in ease of control.
» Bell cranks insulated actuatorsfrom specimen motions, increasingsystem stiffness.
MTS Model 327 4DOF System» Automakers quickly embraced thefirst 4DOF system.
» Brake/drive was a critical tool for
accelerating the development process.
» More than 40 custom versions weredeveloped for automakers to meet
specific testing needs, and more than
200 corners of 4DOF systems are stillused by automakers worldwide.

6

MTS Model 327 4DOF System

MTS Model 329 5DOF System» The Model 329 system with fivedegrees of freedom emerged fromthe developments of the Model 329
4DOF system.
» It provided vertical, lateral, longitudinal,
brake/drive and steer torque capabilities.
MTS Model 329 6DOF System» The Model 329 6DOF system is thefirst passenger car simulator with
six-degree-of-freedom control of forces
and motions at the vehicle spindle.
» Three lateral struts work together toprovide lateral force control with theaddition of steer and camber moment
control.
» In addition to complete force andmoment control at the spindle, theModel 329 6DOF system can bedelivered in a version designed toprovide steering displacement control.

MTS Model 329 5DOF System– Standard configuration provides
		 ±8 degree steering angles.
– Axle test configuration and long		 stroke configuration provide ±25
		 degree steering angles.
– Turntable configuration provides
		 ±45 degree steering angles.
» From the beginning, the Model 329
6DOF system was designed to workwith MTS wheel force transducers.
The result is fast drivefile convergence.

MTS Model 329 6DOF System

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Delivering Versatile, High-Performance Digital Control

The MTS FlexTest® 200 Digital Controller isthe latest and most advanced road simulation
control solution available. Designed specificallyfor high-channel-count vehicle simulation
testing, it employs a proven VME-based
MTS architecture to deliver the advanced
functionality, superior test control andconfigurability required to take full advantageof the Model 329 system’s broad roadsimulation capabilities.

Proven MTS Control, Simulation andData Management Software

The PC-driven FlexTest 200 controller
employs MTS Series 793 control software
to provide a high-performance simulation
environment robust enough for the mostdemanding road simulation applications.
This powerful control package allows you
to define new tests, acquire data andanalyze results of previous tests whilecurrent tests are still in progress.
As with all FlexTest digital controllers,
the FlexTest 200 system allows you totake advantage of a broad array of proven
MTS test application software packages.
For road simulation applications, foremost
among these is RPC Pro software – theworld’s most widely used road simulation
software. The FlexTest 200 controller
integrates seamlessly with RPC Pro software
through the test server to deliver highly
accurate replications of multiaxial timebased measurements for simulating thefield service of full vehicles and components.
RPC Pro software optimizes the complete
road simulation process, providing
system control and general data analysis.
Its process-driven applications focus on
streamlining data acquisition, data
analysis and durability test operation.

8

The control system’s utility is further
enhanced through the use of other
MTS packages such as eTIM™ (electronic
Test Information Management) softwarefor efficiently managing and archiving
test information.
Additionally, a number of adaptive control
compensation options are available foruse in your tests. These include Null
Pacing, Peak-Valley Control, Amplitude
Phase Control and Adaptive Inverse
Control. You can choose the best techniquefor each of your testing needs.
Superior Control Functionality

The FlexTest 200 controller delivers anunmatched variety of road simulation
control features, including support forcalculated channels, sophisticated eventaction processing and mode-switching.
Calculated channels allow the creationof feedback parameters that comprisecombinations of multiple physicalparameters. These in turn can provide
enhanced capability for monitoring, andlimit-checking, as well as RPC andclosed-loop control. Calculated channels
also lend flexibility to matrix control
algorithms, which drive combinationsof transducers and actuators to provide
modal control of compression loads,
shear, translation displacements, steer, toe,camber, rack and yaw. Advanced users
can leverage this flexibility to respondeffectively to changing test demands.
Event/action processing enables users tocreate special interlocks and events basedon digital I/O, limit detectors, error
detectors and system events.
Mode-switching enables a user to shift
between feedback modes depending on
the state of the test specimen. For example,
switching from displacement to load
control for braking simulation, or to acomposite-feedback mode for steering
simulation. Mode-switching also allows
shifting between modes that employ thesame feedback, but use different loop
tuning characteristics, limit settings andso forth.

Specimen Monitoring

Safe, Streamlined Test Setup

FlexTest 200 controller functionality
includes a variety of specimen monitoring
options to track specimen degradation.

The FlexTest 200 controller features anintuitive, graphical user interface andbroad array of configuration files andsetup capabilities to streamline thedefinition and running of tests.

Trend monitoring allows a user to monitor
the trends of key statistics for up to 16
data signals. Limits can be set based on
first pass data, triggering various system
actions when tripped.
Fatigue Monitoring records cycles in ahistogram and then calculates specimen
damage based on the accumulated data.
Three rainflow-counted histogram types
are supported: RangeMean, Range andMaxMin. Data limits can be set andadjusted online, and accumulated data
can be viewed in graph form.
Flexible Data Acquisition

The FlexTest 200 controller canaccommodate up to 96 data acquisition
channels. Test data can be acquired atstandard RPC rates for synchronization
with time history playouts. Other features
include digital FIR filters for anti-aliasing
and realtime X,Y plotting. The control
system supports user-configurable report
generation using RPC Pro software or
Microsoft® Office tools.

Available in numerous languages, theuser-definable FlexTest 200 interface
includes a two-channel digital oscilloscopewith time-base, frequency-base or X,Ydisplay modes; digital volt meters withpeak/valley, max/min or continuous
update modes; summary displays; anda system status panel. Signals can berenamed and grouped into signal, detector
and group control lists for quick accessand interpretation. Function generation
includes time history playback, cyclic
sine and broad-band frequency weighted
random signal generation – soft start/stop
is part of all functions.

To ensure test repeatability, setup andcalibration data – including tuning/stability terms, filters and compensators –can be archived on disk for quick recall.
Additional features such as master
setpoint, remote setpoint adjust, remote
install car pods and user-definable homeand park positions further enhance thesafety and ease of specimen installationand system troubleshooting.
Network Connectivity

Integrating the FlexTest 200 control system
into your organization’s computer network
to share test data among multiple operators
is simple and straightforward. RPC Pro
software tools can be used on the FlexTest
200 computer or on a separate PC over a
dedicated Ethernet connection. A second
Ethernet connection is provided to enablenetwork file transfer with other PCs.

Broad Configurability

The multistation FlexTest 200 controller
eliminates the need to swap cables andcircuit boards when changing channel
assignments, allowing your lab to adapt
quickly and efficiently to evolving
simulation requirements. The system
features more than 30 direct digital
control channels for driving themost comprehensive road simulator
arrangements, with additional control
channels available for optional functionality
such as axle wind-up and longitudinal
restraint. A single FlexTest 200 controller
can easily be configured to perform
2-corner, 4-corner, fixed body or inertial
reaction tests.

The FlexTest 200 controller
integrates seamlessly with
RPC Pro software, theworld’s most widely usedroad simulation software.

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MTS Road Simulator Solutions

Long Stroke System

The Long Stroke System offers the large
displacement capability needed for braking
and slalom (lane change) events. In fact,
MTS delivers the largest displacement
capability in the marketplace. The Long
Stroke System provides 1.2 meter (3.93
feet) lateral and longitudinal spindle
displacement to increase the simulation
bandwidth of the system. This additional
displacement provides the ability toreproduce lower-frequency events onfree body tests, improving the reproduction
accuracy of maneuvering events such as
cornering and braking.

Long Stroke System

Motorcycle, All-Terrain Vehicle andOther Small Vehicles

The MTS Model 334 Four-Corner Road
Simulator accurately replicates the forces
and motions experienced by motorcycles,
ATVs and other small vehicles on the road,track or trail. It simulates the vertical andlongitudinal road inputs both at the front
and rear axles. Human rider dynamics areachieved through the use of a mechanicalrider. Mechanical linkages restrain therider during testing to simulate the rider’sinertia during lateral and roll motions. For
more demanding simulation requirements,
active restraint systems can also be added.
This simulator significantly reduces test
time and saves money. It is 10 to 20 times
faster than street testing and 4 to 10 times
faster than test track testing.

MTS Model 334 Four-Corner Road Simulator

Model 329 Heavy Truck System

Model 329 test fixtures are engineered inthree sizes: passenger car (Model 329),
light truck (Model 329 LT) and heavy truck(Model 329 HT). As the same designprinciples apply to all three fixtures, theModel 329 HT test fixture can be deployedin the same way as its passenger car
equivalent to perform highly accurate
six-degree-of-freedom body and suspension
tests for the heaviest vehicles on the road.
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Model 329 Heavy Truck System

Environmental Road Simulation

A Model 329 4DOF road simulator totallyenclosed within an advanced environmental
chamber enables you to perform fullvehicle durability simulations under
extreme temperature, humidity and solar
loading conditions. A heavy-duty versionof this system provides active vehicle
restraint and four-degree-of-freedom
durability simulation on larger vehicles.
It accommodates up to a four-meter
wheel-base and is capable of handling alarge, 3,492 kg (7,700 lb) vehicle.
For severe environment testing, including
corrosion and excessive humidity, thestruts can reach through the chamber
walls to provide the dynamic loading forthe specimen under test.

Model 329 4DOF Road Simulator

Steer Simulation

Proven Model 329 road simulator
technology is employed to replicate
steering loads for steering component
durability testing. An actuator mounted
on the steering column of the vehicle
drives the steer subsystem. The fixture
corners provide 50-degree rotation to
reproduce the desired steer displacements
and loads. 90-degree rotation test systems
are also available from MTS.
By steering the wheels, the longitudinaland lateral forces become vectored into
the suspension more realistically. The
steer moment force (a moment aroundthe vertical axis) accurately reproduces
the differential lateral force in suspension
components.

Model 329 Road Simulator

11

MTS Road Simulator Test Fixturing

1. Independent Brake Channel

5. Actuators and Servovalves

Because the brake channel is completely
independent, it is not subjected to crosstalk.
The power requirement for the brake
actuator is significantly reduced, and theerror from uncontrolled interactions iseliminated. The brake actuator may beheld stationary for non-braking events
without affecting the other channels,
while allowing the vehicle brakes to be
applied dynamically during the simulation.

Each actuator uses a large-diameter,
single-piece piston rod that is precisionground and chrome-plated. These design
features ensure high strength, lateral
stiffness and low wear. The thick-walledcylinder ensures overall rigidity and has
a high transverse resonant frequency.
The displacement transducer is coaxiallymounted within the hollow piston rod
for accuracy and protection. Built-in
hydraulic cushions protect the end caps
under full-stroke, high-velocity operation.

The MTS Model 329 road simulator

The servovalves are three-stage devices
specifically designed and precisionengineered for the critical requirementsof high flow, high response and low
distortion. They feature electronic
feedback of the spool position forenhanced dynamic response. Matchedground metering edges minimize
crossover distortion, and high spooldriving force combines with hardened
tool steel edges to reduce the valve
sensitivity to contamination.

channels is minimized, MTS Remote

2. Bearings

The bearings in the vertical load train
and at the strut ends consist of elastomericouter bushings with needle roller inserts.
The rolling elements provide the primary
axis of motion, while the rubber bushingallows the swivel (spherical) motion. This
design results in a long, maintenance-freelife with little wear or backlash.
3. Struts

The large-diameter, thin-wall, low-mass
design of the struts ensures that resonant
frequencies remain well outside the test
bandwidth. The unique configuration of thelongitudinal and vertical channels provides
a pure vertical straight-line locus at thespindle center, with minimal compensationfrom the longitudinal channel.
4. Load Transducers

The load transducers used on the Model
329 struts are specifically designed by
MTS engineers for this application. The
hollow tubular construction maintains aconsistent load path with the tubular struts.
They are designed to withstand multiaxial
vibration with minimal crosstalk. They
are fatigue rated at forces well above theiroperating loads and meet the accuracy
standards for which MTS is famous.

12

6. Bell Cranks

Bell cranks are employed for all applied
forces. They reduce demands on theactuator bearings, increasing their life,
and they eliminate the need for oilconsuming hydrostatic bearings. They
also resolve all horizontal loads into
vertical reactions. This eliminates theneed for actuator mounting stanchions
and reduces the overall area and weightrequired for the simulator.

integrates robust mechanical testing
equipment, reliable hydromechanicalsystems, versatile digital control andstate-of-the-art software to bring the test
track into your laboratory and facilitate moreaccurate, repeatable and accelerated vehicle
and component durability testing.
Our attention to detail in the Model 329 test
fixture design results in many advantages.
A significant benefit is reduced kinematiccrosstalk. Because crosstalk between
Parameter Control software accurately
reproduces forces and moments at the pointof excitation, as well as in remote areas ofthe suspension and vehicle structure.
Another benefit is our careful selection of
long-life, minimal maintenance components.

3
4

6

3

6
2

1
5
2
5

MTS FlexTest
200 Controller

PC

To servo actuators
Measurement feedback

Hydraulic distribution system

SilentFlo™ Pump
Ethernet or corporate wide
area network (WAN)

PC

PC

PC

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MTS Road Simulator Accessories

Brake Intensifier Package
MTS offers a wide range of accessories toenhance the functionality of your Model 329
system. By using these tools, you can increase
the value of your tests because they allow you
to include more components in the simulation,
reduce the time it takes to develop a test andprovide more information from a given test.

For accurate testing, it is beneficial to clamp the brakes during braking events only, andrelease them for the remainder of the test. This is because when brakes are applied,
the load path through a vehicle suspension is altered (especially with disk brakes). As
a result, the brake pads and caliper become a parallel load path for spindle forces andmoments. To offset this problem, MTS offers an air-over-fluid pressure intensifier toenergize the vehicle brakes. The package works in the same way as power-assisted
brakes, replacing the master cylinder. The control solenoid is connected to the digitalinterface, and the result is a computer-controlled braking system. The brake torquecontrol electronics are designed to operate in low-gain stroke control when the brakes
are released and in load control when they are applied.

Yaw-Twist FixtureThis accessory provides complete freedom for vehicle yaw axis motion so that when the
opposite axle is translated laterally, no reaction force is generated by the fixture itself.
The axle under test is installed into two corners of standard Model 329 fixturing. The
other axle is restrained with the tire-coupled Yaw-Twist Fixture.
One parameter that is not reproduced well with half-vehicle simulation is twist (wheneach axle rolls out of phase). The Yaw-Twist fixture resolves this problem by including
an extra actuator channel that applies low frequency roll to the restrained axle to allow
accurate replication of twist events.

Torque Input FixtureWith the standard Model 329 simulator, torque is applied at each wheel to simulate
brake torque via locking of the vehicle brakes. To simultaneously simulate engine
torque (or drive torque), MTS offers its bi-directional Torque Input Fixture. It
mounts on the engine, transmission or rear axle, and the bottom of the fixturebolts to ground. Whether the simulation is free, semi-free or fixed, the fixture does
not introduce significant erroneous loads in uncontrolled directions (vertical or
horizontal).

Semi-Active Longitudinal Restraint System

When combined with the Brake Intensifier Package, the Semi-Active Longitudinal
Restraint System provides complete dynamic control of the simulation mode. During
non-braking events, the vehicle body floats naturally. When a braking event isencountered, the longitudinal restraint and the brakes lock to provide a reaction to
ground. The restraint system is fixed to the front and rear of the vehicle structure
through the bumper mounts. Actuators are coupled through airbags, bell cranks andstruts. The airbags deflate during non-braking events, effectively decoupling the restraint.

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SWIFT® Evo Wheel Force Transducers

Rail Car Transportation Simulation

Combining a SWIFT Evo Spinning Wheel Integrated Force
Transducer with the Model 329 6DOF system presents an idealmeans for streamlining and accelerating the simulation ofsuspension loads. SWIFT Evo transducers feature a high stiffness
one-piece design that yields high sensitivity, excellent linear
behavior and high overload capacity. Unique among wheel force
transducers, this design delivers unmatched precision and long
life, enables easy installation and measures loads directly at thespindle, eliminating the need to convert data.

The Rail Car Transportation Simulation option is comprised ofa platform that mounts to the four corners of the Model 329
fixturing and accurately reproduces the shipping environment
experienced by vehicles. This option, manufactured to meetyour particular specifications, further increases your testing lab’s
capabilities and flexibility.

Data generated with SWIFT Evo transducers are useful for many
applications, including analysis, design, and modeling of thesystem for creation of virtual models, and application in virtual
testing. They quickly attach to a modified rim for data acquisitionon the road or in the lab, significantly reducing instrumentation
time and costs.
The SWIFT Evo system is currently available in seven sizes–
ranging from the SWIFT Evo 10 for motorcycles, up to the
SWIFT Evo 60 for heavy industrial and agricultural vehicles.

Downforce System

The Downforce System reproduces the aerodynamic loads onthe vehicle. It applies force to the specimen while presenting asoft path to ground. As the moving specimen presents anexternal disturbance to the load control loop, the system reacts
by moving along with the specimen, maintaining thecommanded load.
Applications of this system include:» Aerodynamic downforce and control
surface load simulation» Simulation of inertial forces due tocornering and braking» Active test vehicle restraint forroad simulation systems» Models are available
that meet NASCAR,
Open Wheel and
Formula One racing
standards.

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Unparalleled MTS Global Support

Since 1966, the global automotive
community has turned to MTS Systems
Corporation for innovative testing andsimulation systems that enhance
productivity and engineer safer, cleaner
and more durable products. MTS is
recognized as the premier providerof full-vehicle, subsystem andcomponent-level testing systems andsoftware, with unparalleled engineeringand technical experience and a growing
set of core technologies.
Consulting and Engineering Services
U N D ERS TA N D IN G YO UR NEEDS

With reduced development cycles andinnovative design requirements, youneed to maximize the efficiency andeffectiveness of your vehicle and component
testing efforts. Whether your needs arelarge or small, MTS has the expertise andthe resources to understand your challenges
and complement your skills whereverneeded. We are capable of providing daily
or weekly consulting to meet urgent
immediate needs, or we can propose
engineering studies, comprehensive
training and development programs toaddress longer-term concerns.
G U ID IN G Y O U TH R O U GH EVOLVING TECHNOL OGY

By working closely with vehicle
manufacturers across the globe, MTS
consultants have acquired corecompetencies in testing components,
subsystems and full vehicles. This wealthof real-world experience can be readilytransferred to your organization to help
you keep abreast of evolving vehicle- andcomponent-testing technologies andtheir applications. We also offer design,
analysis and modeling solutions tocomplement these tests.

ANALYZI NG YO U R PRO B L E M S

MTS has a proven record of success inproviding creative solutions to bothproduct- and process-oriented problems
for virtually all areas of vehicle
development. Our exposure to a wide
variety of applications and vehicle
development problems enables us topropose innovative solutions to yourmost difficult problems in a timely
and cost-efficient manner.
Solutions may include:» Alternative simulation techniques» Control system evaluationand modification» Instrumenting complex specimens» Mechanical problem identification
and resolution» Prototype system development
PROPOSING COMPLETE ENGINEERING SOLUTIONS» Customized training» Co-development projects» New methods, techniques
and technologies» Visual Basic®/ batch file custom projects» Advanced engineering studies» Equipment and resource
supplementation

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The MTS Maintenance, Enhancement andSupport (ME&S) Agreement

Software technologies continue to change
rapidly in our industry. This can create
many challenges when trying to keepsystems current and compatible withevolving PC technology, while meeting
increasing workload demands. MTS
offers a Maintenance, Enhancement andSupport (ME&S) agreement that makes it
easy and cost-effective to maintain andenhance your systems, with the assurance
that experienced MTS technical support
is waiting to help you. With an ME&S
agreement from MTS you will receive:A U T O M AT IC U PD AT E S, INCL U D ING» New features added to your softwarein response to demands from thetesting community.
» All software updates that become
available after initial program purchase.
» New capabilities added to yourpreviously purchased software
packages.
» New software that stays compatible
with evolving PC operating systems.

E A S IER B U D G ETIN G WITH F IXED COSTS

An ME&S agreement is more cost-effective
than purchasing software upgrades andupdates separately.
A S SU RED TEC H N ICA L A SSISTANCE

You will qualify for preferential technicalassistance by telephone from MTS softwareexperts at no additional cost.
A PLA N TO FIT YO U R SP ECIF IC NEEDS» Agreements are purchased at the timeof equipment purchase or shortly
thereafter. They are sold in 12-monthcoverage increments; however, you canbuy up to 48 months of coverage at thesame low annual rate.
» You qualify for discounts if you havemultiple systems.
Responsive Field Service

Our equipment service offerings aredesigned to maximize uptime and keep
your lab running productively. MTS field
service engineers are trained professionals,
strategically located to provide prompt,
technically competent responses to yourservice needs.

MTS service offerings include:

Productivity-Enhancing Training» Calibration and verification services
to ensure reliable test results.

All MTS training courses are designed tohelp you maximize the productivity andlifetime of your test system investment.
The courses provide an opportunity forhands-on learning to ensure that you arefamiliar with every aspect of your test
system. Our training courses cover systems
and software operation and maintenance,
testing principles, methodologies andapplications.

» Preventive maintenance to minimize
downtime.
» Scheduled and emergency repair
services to bring your testing systems
back up and running in the event ofa failure.
» A worldwide parts logistics
infrastructure that can supply theparts you need when you need them.
Comprehensive Customer Support

To ensure that you receive the full benefitsof your MTS test equipment, we provide
a wide range of customer support options.
Whether providing assistance withtroubleshooting, answering questions
about software, or just helping get the job
done, our experienced support engineers
can help you keep your lab runningsmoothly.

Model 329 System Refurbishing

MTS offers complete repair andremanufacturing services. We cantransform your aging Model 329 roadsimulator to like-new operation andupdate its components to current design
standards. For example, your 12-year-old
4DOF system can be refurbished toincorporate all design changes since its
purchase. Refurbishing services include
rebuilding all actuators, replacing all
bearings, and inspecting and replacing
all components as needed.

17Model 329 Spindle-Coupled Road Simulators System Performance

329i PC 6 DOF
				
Max. Operating Frequency
Spindle Force/Moment		Spindle Displacement		Spindle Velocity
		
»
»
»
»
»
»

Vertical
Input
80 Hz
63 kN
(14,100 lbf)
±190 mm(±7.5 in)7 m/sec(276 in/sec)

Longitudinal
Input
80 Hz
22 kN
(4,950 lbf)
±196 mm(±7.7 in)
2.2 m/sec(86 in/sec)

Lateral
Input
80 Hz
20 kN
(4,500 lbf)
±129 mm(±5.1 in)
2.4 m/sec(94 in/sec)

Steer
Input
80 Hz
6.9 kN-m(61,000 in-lbf)±8 degBrake/Drive
Input
80 Hz
4.0 kN-m(35,400 in-lbf)±17 deg

Camber
Input
80 Hz
9.6 kN-m(85,000 in-lbf)±8 deg750 deg/sec

700 deg/sec

400 deg/sec

Steer
Input
80 Hz
6.9 kN-m(61,000 in-lbf)±8 degBrake/Drive
Input
80 Hz
6.2 kN-m(54,800 in-lbf)±17 deg

CamberInput
80 Hz
14.3 kN-m(125,000 in-lbf)±8 deg750 deg/sec

450 deg/sec

450 deg/sec

Total maximum recommended vehicle mass 3000 kg (6600 lbs).
All Performance estimation subject to change.
Dynamic specification is based on single axis only, sinusoidal input, non-continuous events
Performance values are nominal at mid position – not simultaneous nor corrected for linkage.
Maximum brake clearance diameter is 450mm for above performance predictions.
Minimum required oil-flow for random loading is approximately 284 lpm (75gpm) per corner.
This rating is highly dependent on actual operating conditions and should be discussed further with an MTS Application Engineer.

329i LT 6 DOF

				
Max. Operating Frequency
Spindle Force/Moment		Spindle Displacement		Spindle Velocity
		Vertical
Input
80 Hz
77 kN
(17,300 lbf)
±190 mm(±7.5 in)
5.0 m/sec(197 in/sec)

Longitudinal
Input
80 Hz
29.5 kN(6,600 lbf)
±196 mm(±7.7 in)
3.0 m/sec(118 in/sec)

LateralInput
80 Hz
33.5 kN(7,500 lbf)
±129 mm(±5.1 in)
2.6 m/sec(102 in/sec)

»
»
»
»
»
»

Total maximum recommended vehicle mass 6000 kg (13200 lbs).
All Performance estimation subject to change.
Dynamic specification is based on single axis only, sinusoidal input, non-continuous events
Performance values are nominal at mid position – not simultaneous, nor corrected for linkage.
Maximum brake clearance diameter is 450mm for above performance predictions.
Minimum required oil-flow for random loading is approximately 386 lpm (102 gpm) per corner.
This rating is highly dependent on actual operating conditions and should be discussed further with an MTS Application Engineer.
» Optional static support is capable of providing up to 23 kN (5000 lbf) of additional vertical upforce per corner to offset vehicle weight.

The new 80 Hz Model 329i integrates adiverse array of MTS mechanical, controls
and software innovations to meet evolving
requirements for connectivity, accuracy,
productivity and efficiency.

18Model 329 6DOF (Passenger Car)				Max. Operating Frequency
Spindle Force/Moment		Spindle Displacement		Spindle Velocity
		
»
»
»
»
»
»
»

Vertical
Input
50 Hz
63 kN
(14,100 lbf)
380 mm(15 in)7 m/sec(276 in/sec)

Longitudinal
Input
50 Hz
22 kN
(4,950 lbf)
392 mm(15.4 in)
2.2 m/sec(86 in/sec)

Lateral
Input
50 Hz
20 kN
(4,500 lbf)
258 mm(10.2 in)
2.4 m/sec(94 in/sec)

Steer
Input
50 Hz
6.9 kN-m(61,000 in-lbf)
16 degBrake/Drive
Input
50 Hz
4.0 kN-m(35,400 in-lbf)
32 degCamber
Input
50 Hz
9.6 kN-m(85,000 in-lbf)
16 deg700 deg/sec

700 deg/sec

400 deg/sec

Steer
Input
50 Hz
6.9 kN-m(61,000 in-lbf)
16 degBrake/Drive
Input
50 Hz
6.2 kN-m(54,800 in-lbf)
34 degCamberInput
50 Hz
11.3 kN-m(100,000 in-lbf)
16 deg750 deg/sec

450 deg/sec

450 deg/sec

Steer
Input
50 Hz
8.3 kN-m(73,400 in-lbf)
50 degBrake/Drive
Input
50 Hz
6.0 kN-m(53,000 in-lbf)
30 degCamber
Input
50 Hz
7.2 kN-m(63,700 in-lbf)
20 deg700 deg/sec

880 deg/sec

700 deg/sec

Total maximum recommended vehicle mass 3000 kg (6,600 lb).
All performance estimates are subject to change.
Dynamic specification is based on single axis only, sinusoidal input, non-continuous events.
Performance values are nominal at mid position – not simultaneous, nor corrected for linkage.
Maximum brake clearance diameter is 430 mm for above performance predictions.
All displacements are expressed in terms of double amplitude values.
Typical required oil-flow for random loading is approximately 284 lpm (75 gpm) per corner. This rating is highly
dependent on actual operating conditions and should be discussed further with an MTS application engineer.

Model 329 LT 6DOF (Light Truck)				Max. Operating Frequency
Dynamic Spindle
Force/Moment
Spindle Displacement		Spindle Velocity
		Vertical
Input
50 Hz
77 kN
(17,300 lbf)
380 mm(15 in)5.0 m/sec(197 in/sec)

Longitudinal
Input
50 Hz
29.5 kN(6,600 lbf)
392 mm(15.4 in)
3.0 m/sec(118 in/sec)

LateralInput
50 Hz
33.5 kN(7,500 lbf)
258 mm(10.2 in)
2.6 m/sec(102 in/sec)

»
»
»
»
»
»
»

Total maximum recommended vehicle mass 6000 kg (13,200 lb).
All performance estimates are subject to change.
Dynamic specification is based on single axis only, sinusoidal input, non-continuous events.
Performance values are nominal at mid position – not simultaneous, nor corrected for linkage.
Maximum brake clearance diameter is 430 mm for above performance predictions.
All displacements are expressed in terms of double amplitude values.
Typical required oil-flow for random loading is approximately 386 lpm (102 gpm) per corner. This rating is highly
dependent on actual operating conditions and should be discussed further with an MTS application engineer.
» Optional static support is capable of providing up to 23 kN (5,000 lbf) of additional vertical upforce per corner to offset vehicle weight.

Model 329 6DOF Medium Steer		
Max. Operating Frequency
Dynamic Spindle
Force/Moment
Spindle Displacement		Spindle Velocity
		
»
»
»
»
»
»
»

Vertical
Input
50 Hz
77 kN
(17,300 lbf)
300 mm(11.8 in)
6.1 m/sec(240 in/sec)

Longitudinal
Input
50 Hz
25.8 kN(5,800 lbf)
200 mm(7.8 in)
2.2 m/sec(85 in/sec)

LateralInput
50 Hz
33.2 kN(7,450 lbf)
200 mm(7.8 in)
2.5 m/sec(100 in/sec)

Total maximum recommended vehicle mass 6000 kg (13200 lb).
All performance estimates are subject to change.
Dynamic specification is based on single axis only, sinusoidal input, non-continuous events.
Performance values are nominal at mid position – not simultaneous nor corrected for linkage.
Maximum brake clearance diameter is 420 mm for above performance predictions.
All displacements are expressed in terms of double amplitude values.
Typical required oil flow for random loading is approximately 386 lpm (102 gpm) per corner. This rating is highly dependent
on actual operating conditions and should be discussed further with an MTS application engineer.

19

Regional Business Centers

T HE AM E R IC AS

EU R O PE

A S I A / PA C I FI CMTS Systems Corporation
14000 Technology Drive
Eden Prairie, MN 55344-2290
USA
Telephone: 952-937-4000
Toll Free: 800-328-2255
E-mail: info@mts.com
Internet: www.mts.com

MTS Systems France
BAT EXA 16
16/18 rue Eugène Dupuis
94046 Créteil Cedex
FranceTelephone: +33-(0)1-58 43 90 00
E-mail: contact.france@mts.com

MTS Japan Ltd.
Raiden Bldg. 3F 3-22-6,
Ryogoku, Sumida-ku,
Tokyo 130- 0026
Japan
Telephone: +81 3 5638 0850
E-mail: mtsj-info@mts.com

MTS Systems (Germany) GmbH
Hohentwielsteig 314163 Berlin
Germany
Telephone: +49-(0)30 81002-0
E-mail: euroinfo@mts.com

MTS Korea, Inc.
2nd F, Bundang Yemiji Building, 31,
Hwangsaeul-ro 258beon-gil,
Bundang-gu, Seongnam-si,
Gyeonggi-do, 13595
Korea
Telephone: +82-31-728-1600
E-mail: mtsk-info@mts.com

MTS Systems S.R.L. a socio unico
Strada Pianezza 289
10151 Torino
Italy
Telephone: +39-(0)11 45175 11 sel. pass.
E-mail: mtstorino@mts.com
MTS Systems Norden AB
Datavägen 37b
SE-436 32 Askim
SwedenTelephone: +46-(0)31-68 69 99
E-mail: norden@mts.com
MTS Systems Limited
98 Church Street,
Hunslet,
Leeds
LS102AZ
United Kingdom
Telephone: +44 (0) 113 270 8011
E-mail: mtsuksales@mts.com

MTS Systems Corporation
14000 Technology Drive
Eden Prairie, MN 55344-2290 USA
ISO 9001 Certified QMS
http://www.mts.com

MTS Systems (China) Co., Ltd.
Floor 34, Building B,
New Caohejing International
Business Center,
No.391, Guiping Road,
Xuhui District
Shanghai 200233
P.R.China
Telephone: +021-24151000
Market: +021-24151111
Sales: +021-24151188
Service: +021-24151198
E-mail: MTSC-Info@mts.com
MTS Testing Solutions India Pvt Ltd.
No. 38, Ground Floor, Donata Radiance,
1st Cross, Tavarekere Main Road,DRC Post, Krishna Nagar Industrial Layout,
Kormangala, Bangalore – 560 029
India
Telephone: + 91 80 46254100
Email: mts.india@mts.com

MTS, FlexTest, RPC and SWIFT Evo are registered trademarks, and ERPC, eTIM, MAST,
Remote Parameter Control and SilentFlo are trademarks of MTS Systems Corporation within
the United States. These trademarks may be protected in other countries. RTM No. 211177.
Microsoft, Windows and Visual Basic are registered trademarks of Microsoft Corporation.
©2023 MTS Systems Corporation
100-109-160f Multiaxial329 • Printed in U.S.A. • 08/23