Floating Floors for Rolling Stockfor Passenger Trains
and Commuter Services

Greater comfort,
reduced costs

Noise as a challenge
Unevenness in the running surfaces of the wheels or in the track superstructure, as well as drive motors
and compressors, serve as a sourceof vibration in passenger carriages.
The bogie absorbs part of the disruptive frequencies from the vehicle's
undercarriage, but the remaining vibrations move the carriage body andultimately cause the floor system tovibrate. This is perceived as an unpleasant noise level by passengers
and personnel in the form of vibrating surfaces and emanating secondary airborne noise.
Our solutions
Designed precisely for each individual
application, our solutions considerably
reduce vibrations as well as the subsequent secondary airborne noise. Fewer
vibrations inside the vehicle not only
make journeys much more pleasant forpassengers and train staff, but elastic
floating floors for rolling stock also
protect joints, electronic components,and sanitary facilities. Isolating vibrations and thereby reducing their effects lowers life cycle costs for train
operating companies.
During installation, the materials also
compensate for both smaller longitudinal and lateral tolerances in the floor
pan without affecting the vibration isolation properties in any way.
We develop individual solutions for rolling stock construction depending on
general requirements. We provide support during the calculation and material selection and also offer floor systemtests if required, which is where ourexperience of more than 40 years in
the rolling stock industry truly comes
into play.

Your benefits:

Vibration and noise
reduction thatremains consistently effective
throughout theentire service life

Lower installation
costs due to lesstime being required
and reduced staff
workload

EN 45545-2
certification for
maximum safety

Materials available
internationallyfor secure production
processes

Low material
weightoptimised forlightweight
construction

High-speed
train

Find your solution for every type of train.
Regionaltrain

You can find the ideal materials for your application using
our FreqCalc online calculation tool. Unlike other materials,
polyurethane has well-defined material properties, so the
behaviour of the finished system can be clearly predicted.

For more info:www.getzner.com/calculation-tools

Urbantransport

MetroFire protection

Sylomer® Fire-retardant (FR)The requirements for fire protectionof materials are increasing and are ofparticularly high importance in rolling stock construction. For this reason,
the tried-and-tested Sylomer® types
have been equipped with fire-retardant
properties while retaining the exceptional damping characteristics of thematerial.

Sylomer® FR has excellent fire properties and meets a number of international fire protection standards. Amongother things, it complies with standard
DIN EN 45545-2, and has a hazard level (HL) 3 rating for floor constructions.
No halogenated fire protection agentsor toxic substances are used when manufacturing Sylomer® FR, and the materials are RoHS-compliant.

Sylomer® FR
achieves Hazard Level 3for floor construction
within the DIN standard

Efficient vibration isolation –thanks to Getzner polyurethane

Material with uniqueproperties

Transfer coefficient in dB

Polyurethane (PU) has the great advantage that it becomes softer underdynamic stress. Compared to othermaterials (in particular rubber), it
achieves a higher isolation effect whenused as an elastic floating floor for rolling stock. With Sylomer® and Sylodyn®,the majority of the deflection takes
place at the start of the installation

process (the preload), which is in complete contrast to other materials, suchas rubber. The materials are designed
separately for each load situation, thus
ensuring that the deflection remains
low and calculable throughout the entire service life of the carriage.

2010
Range of vibration isolation for fe > 1.41*f00

Resonance
at natural
frequency f0-10-20

Resonance
range-30

Vibration isolation-40
05101520

2530

3540

4550 5560
65 70
Excitation frequency fe in Hz

The exceptional creep behaviour andrecovery of Getzner materials guarantee low deflections – even in the longterm. As the elastic properties of polyurethane are determined in the cellular structure and are not achieved
through additives, they remain constant throughout the entire lifetimeof a carriage.

Developedand producedin the heartof Europe

Put your trust in innovative solutions from Getzner

No softeners are used in the production of polyurethane, meaning it does not
become brittle and the chemical composition and material properties remain constant for decades, regardless of the ambient conditions.
We have been making use of these properties for over 50 years. Our customers benefit from our customised services, while our calculation programs facilitate independent layout and design. Our experts will be happy to support you ifrequired.

We look forward to hearing from you.
Getzner Werkstoffe GmbH
Herrenau 5, 6706 Bürs, Austria
T +43 5552 201-0
info.buers@getzner.com

www.getzner.com/contact
AUSTRIA — Bürs GERMANY — Berlin — Munich — Stuttgart FRANCE — Paris — Lyon JAPAN — Tokyo
INDIA — Pune CHINA — Beijing USA — Charlotte AUSTRALIA — Melbourne
www.getzner.com

We are the leading
specialist in vibration
protection and ...

... reducing
vibrations... lowering
noise levels... reducing
maintenanceand service
requirements... extending
the service
life of bedded
components

B FFFRL en © Copyright by Getzner Werkstoffe GmbH | 10-2023

We are the world's leading expert in vibration isolation, thanks to our many yearsof experience in the development, production, and application of our materials.
This expertise allows us to design the materials in a wide variety of shapes andgradations. With our Sylomer®, Sylodyn®, Sylodamp®, and Sylocraft® materials,
we cover a wide range of applications, from resilient to damping. When connectedwith metal springs and elements, they become Isotop machine bearings that areeasy to install.