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SCTR - Suspension Component Test Rig

Acoustic quality and drive comfort play an increasingly important role in the development of new chassis and suspension systems. Noise in suspension components lead to high warranty costs and are difficult to diagnose. The new MB Suspension Component Test Rig (SCTR) enables highly dynamic simulation of real road excitations with superimposed compressive forces for comprehensive sound and vibration analysis on a wide variety of chassis components.

The highly dynamic and acoustically quiet linear motor actuator and the use of air bearings allow for high-fidelity dynamic waveforms and extremely high simulation quality of recorded acceleration, force or displacement signals. Objective Squeak & Rattle analyses and vibration measurements are not affected by drive noise and friction noise. Stick-slip, rattling and creaking noises in the suspension components can be metrologically analyzed and assessed objectively. A targeted optimization of the spring-damper system gets possible by measuring and comparing the dynamic transmission behavior of various components.

 

SCTR - Suspension Component Test Rig for Sound & Vibration Analysis

 

Supension Component Test Rig

 

Geräuschprüfung von Fahrwerkskomponenten

 

Designed to characterize noises, such as:

  • Strut Pop
  • "Loose Lumber"
  • Rebound Noise
  • Sway Bar & Bushing Noise
  • Leaf Spring Noise
  • Noises in Active Dampers and Mounts
  • Stick-Slip Noises
  • Squeaks & Rattles

Specifications:

  • Max. Displacement: 200mm pk-pk between stops
  • Force (dynamic): max. 10kN pk instantaneous, 2kN pk continuous
  • Force (Compressive, into test item): max. 13kN pk
  • Frequency Response: DC-100Hz
  • Max. Velocity: >2m/s instantaneous
  • Max. Acceleration, bare table: 22g pk instantaneous, 4.25g pk sine , 3.0g RMS
  • Background Noise: <2 Sone @ 13Hz, 1g pk sine motion
  • Force-, acceleration or displacement control
  • SINE, PSD RANDOM, TIME HISTORY REPLICATION
  • Rig orientation can be vertical or horizontal
  • Analog signal outputs (BNC output): acceleration, velocity, displacement, motor current (proportional to excitation force)
  • Maximum test item height: 660mm
  • Test space width, between columns: 450mm
  • Dimensions: 965mm x 616mm x 2600mm

Key Differentiators:

  • Quiet- test equipment does not mask test item noises
  • No Hydraulics, no oil - safe, low-maintenance, no environmental issues
  • Acoustically quiet Linear Motor Actuator - high-fidelity dynamic waveforms
  • Superimposed compressive forces into test items
  • Low-maintenance - no seals, no vents, no hoses to replace
  • Air bearings - frictionless motion, low noise
  • Operate with environmental chamber
  • Option: Test System for Road Load Data Acquisition and Sound & Vibration analysis
  • Option: Test Sequencer for fully automated test sequences
  • Low operating costs - uses power only during excitation

 

Optional Accessories:

NVH Test System
› Microphones & Sensors
 
 

 

Data Sheets:

MB Suspension Test Rig
 
 

 

Queries?

For technical questions call us on:
+49 2151 7886890
or send us an email using the online form.