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It is widely recognised that the intensity of vibrations produced by vehicles is not constant due to variations in road roughness and vehicle speed. This nonstationary effect cannot be properly simulated with ordinary random vibration controllers (RVCs) and thiis often results in unrealistic vibration tests and results.

The Statistical Vibration Synthesizer (SVS) offers a practical solution based on years of university research. The SVS can transform your existing random vibration test system into one that can reproduce the random fluctuations that epitomise real-world vehicle vibrations. Because, the SVS can perform all the tasks of ordinary RVCs, you can continue performing traditional tests while future-proofing your facilities for possible changes in transport simulation procedures and requirements.

Statistical Vibration Synthesizer - Introduction

The Statistical Vibration Synthesizer is a new generation instrument that uses a target rms distribution function in addition to a target Power Spectral Density (PSD) function to produce the random fluctuations in vibration intensity that is so typical of vehicle vibrations. Read more...

Background Information

Ordinary vibration controllers are based on the assumption that distribution vibrations are both statistically stationary and Gaussian. The Statistical Vibration Synthesizer recognizes that, in the main, real vibrations are nonstationary and, consequently, non-Gaussian. Find out more....

SVS - Single Channel Controller

The Statistical Vibration Synthesizer - Single Channel Controller is a complete Random Vibration Controller replacement package which gives you much more than ordinary, stationary, Gaussian Random Vibration Controllers. Find out more...

SVS - Dual Channel / Pitch & Roll Controller

Information to come soon

SVS - RVC Adaptor Module

The SVS RVC Adaptor Module is a cost effective solution designed specifially to be retro-fitted to to existing RVC units. It affords you the additional capability for producing nonstationary vibrations without having to dispose of your existing RVC. Find out more ...

Field Data Analysis Module

This optional software module allows you to import field data recorded with Saver® devices that use Saverware® or SaverXware®. It is designed to generate both the average PSD and the rms distribution functions necessary to synthesize nonstationary random vibrations. It links seamlessly with the main SVS software module. Find out more ...

Vehicle Trip Synthesizer Module

This optional software module allows you to create target PSD and rms distribution functions by prescribing vehicle type and trip schedule (road roughness and vehicle speed). It is an affordable alternative for those who do not have easy access to field data (vibration) recorders. It links seamlessly with the main SVS software module. Find out more ...