Powerful, easy-to-use tool for designing and evaluation car and truck suspensions
SuspensionSim
simulates
quasi-static
Kinematics and Compliance (K&C) tests
applied to suspension systems. SuspensionSim
models include both kinematics andcompliance effects of joints.
SuspensionSim is one of four VehicleSim
products from Mechanical Simulation. The
others (BikeSim, CarSim, and TruckSim)
simulate dynamic vehicle behavior. All fourproducts share VehicleSim tools, libraries,and documentation.
SuspensionSim is intended for use by twolevels of users. Model Users are engineersand designers who will be working with agiven suspension layout, changing hardpoint coordinates and stiffness properties,
and then evaluating the suspension behavior
by analyzing simulated test results. Model
Builders are advanced users who canassemble new multibody models to simulate
suspension types that are not already available
from existing templates.

Model Users

The parametric capabilities of SuspensionSim
are used to isolate parameters that will bechanged by Model Users from the inputs used
to build the model. These typically include
coordinates of design points and stiffness
properties of springs and bushing.
In typically use, a few datasets from anexisting model are copied such that some of
the numerical values of parameters for thatmodel can be modified. The new version(called a variant) has the same parameters
and output variables, but the numerical values
assigned to the parameters may be different.
As with other VehicleSim products,
SuspensionSim supports advanced inputs
such as user-specified units, formula inputs,
VS Commands (scripting), and remote control
using an API.

Model Builders

A Model Builder can assemble new suspension models from existing
templates (reusable datasets), and design new datasets as needed. The
multibody program in SuspensionSim can assemble complicated systems,
built with SuspensionSim Bodies, Points, Joints, and Vectors. Joints
include ball joints, axial springs, generic axial Joints with user-defined
controls for motion or load, or nonlinear force/deflection behavior, 3D
bushings, and generic 3D Joints with user-defined controls for motion orload, or nonlinear force/translation or moment/rotation behavior.
Without restriction to a template set, a modeler can assemble the entire
car instead of just one suspension, constrain it any way he chooses, torepresent the test methods applied by any physical K&C rig. Novelsuspensions can readily be built and evaluated.
SuspensionSim’s advanced capabilities go far beyond any kinematicand compliance modeling software available today. It brings CarSim’s
powerful features for producing detailed procedures, including VS
Commands, Events, Restoring to a Previous State, and Continued Runs.

carsim.com

VS Visualizer

All VehicleSim products use the same architecture, file formats, andthe VS Visualizer tool. VS Visualizer can show video animation
alone, plots, or video and plots synchronized. The option to view
synchronized videos and plots can give you exceptional insight.
Predefined plots from the database are activated with a single button
click. Cursor movements are synchronized for all visible plots. If avideo animation is visible, it is also synchronized. Digital displaysof all plotted variables can be shown simultaneously as the cursor is
moved through the plot area.

Partial assemblies can be viewed for debugging.

VS GUI, Database, and Browser

The SuspensionSim GUI generates inputs to the multibody programautomatically. For Model Users, the main inputs are parameters forcoordinates, stiffness coefficients, and nonlinear tables for springs
or bushing properties. For Model Builders, the GUI also provides
commands that assemble the multibody model, and customize thenames of parameters and outputs to match the use in the model. The
GUI is also setup to link animation information to the multibody model,
so that the model can be visualized at all stages of its development.

Send Data to BikeSim, CarSim, and TruckSimModel users can make variant suspensions using
only a few screens.

PRODUCT HIGHLIGHTS
Rear Suspension Templates• 5 link independent• Hotchkiss• Live 3 bar with Watt
• Live 4 bar with Panhard• Live 4 bar• Live 4 bar with Watt
• Semi-trailing arm• Tri-Link with strut• Twist axle with Panhard
Front Suspension Templates• Kingpin Carrier Double Wishbone• Multi-link• SLA• SLA spring on LCA front rack
• SLA with coil over parallel steer• Strut• Strut with coil over front

SuspensionSim can generate custom outputs based on userspecifications. Generate suspension kinematics and complianceproperties in Parsfiles, for direct use in CarSim, TruckSim, andBikeSim. For example, with a set of simulated K&C test procedures,
you only need a single button click to generate a Parsfile for suspension/steering information usable in a VehicleSim vehicle model.

Suspension Components• Ball Joint• Ball link
• Bump stop
• Bushing• Constraint• Non-linear beam
• Rack/steering gear
• Simple rectangular beam
• Simple round beam
• Slider• Spring• Tie-rod• Weld

Load Conditions• Ride• Roll
• Steering Input
Export Formats• BikeSim• CarSim• TruckSim• Excelcarsim.com
Copyright 2018 Mechanical Simulation Corporation® 755 Phoenix Drive, Ann Arbor, MI 48108, USA
All Rights Reserved. CarSim®, TruckSim®, BikeSim® and SuspensionSim® are registered trademarks of Mechanical Simulation Corporation in the USA and other countries.

info@carsim.com
734.668.2930