Influence of crest factor on evaluation of human perception of traffic vibration

Alicja Kowalska-Koczwara,Krzysztof Stypuła

doi:10.21595/jme.2018.20421

Abstract

In this article many vibrational signals of different value of crest factor are investigated. Evaluation of human perception of vibration is made with use of two different method of evaluation: basic RMS method and vibration dose value method (VDV), which is one of additional method mostly used for peak signals. Analysis of influence of crest factor value on evaluation of human response to vibration is made.

Highlights

Nowadays in more and more urbanized cities there are many sources of vibrations that could cause complaints from people residing in their houses
root mean squared method (RMS) is the basic method of evaluation in some cases additional method are required
The analysis was made using RMS, MTVV and vibration dose value method (VDV) method, and the results indicate that VDV method is the best evaluation for signals with higher crest factor value

Summary

Introduction

Nowadays in more and more urbanized cities there are many sources of vibrations that could cause complaints from people residing in their houses. RMS is the basic method of evaluation in some cases additional method are required Such situations occur when occasional shock and peaks in recorded signal appeared. British standard [7] uses vibration dose value method (VDV) for evaluation of human perception of vibration. In ISO standards [6, 8] crest factor indicate boundary between usage of RMS method and the need of usage additional methods like VDV or MTVV (maximum transient vibration value). The analysis was made using RMS, MTVV and VDV method, and the results indicate that VDV method is the best evaluation for signals with higher crest factor value. In this article some examples of recorded signals with different values of crest factor are shown and two evaluation method are used (RMS and VDV). The differences in results of evaluation of human perception of vibration is analysed and discussed

Analysed building

Results of VDV method

Comparative analysis of two method of evaluation

Conclusions