Ride quality assessment of bus suspension system through modal frequency response approach

Y. S. Kong, Mohd. Zaidi Omar, L. B. Chua, Shahrum Abdullah

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The ride dynamic characteristics of an urban bus were investigated through simulations with suspension component characteristics and were validated through field measurements. It was performed on highway road at a constant forward speed. A random vibration bus model with two parallel tracks of terrain profile was synthesized with superposition between the left and right sides as well as time delay between front and rear. The bus frequency response model was introduced with embedded modal extraction data to enhance computation efficiency. The simulation results of the bus model were derived in terms of acceleration PSD and frequency-weighted root mean square acceleration along the vertical axes at three locations, namely, driver side, middle, and rear passenger side, to obtain the overall bus ride performance. Another two sets of new leaf spring design were proposed as suspension parameter analysis. The simulation approach provides reasonably good results in evaluating passenger perception on ride and shows that the proposed new spring design can significantly improve the ride quality of the driver and passengers.

Original languageEnglish
Article number269721
JournalAdvances in Mechanical Engineering
Volume2014
DOIs
Publication statusPublished - 2014

Fingerprint

Frequency response
Suspensions (components)
Leaf springs
Time delay

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Ride quality assessment of bus suspension system through modal frequency response approach. / Kong, Y. S.; Omar, Mohd. Zaidi; Chua, L. B.; Abdullah, Shahrum.

In: Advances in Mechanical Engineering, Vol. 2014, 269721, 2014.

Research output: Contribution to journalArticle

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