Title: Multi-mode and rubber-damped Torsional Vibration Absorbers for engine crankshaft systems

Authors: Wen-Bin Shangguan, Xiao-Yong Pan

Addresses: School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, Guangdong, 510641, China. ' Toupu Vibro-Acouctics Technology Inc., Ningbo, Zhejiang, 315800, PR China

Abstract: With the development of lightweight design and the high power output of an engine, the effectiveness of Torsional Vibration (TV) control for an engine crankshaft with an ordinary Single Mode and rubber-damped TV Absorber (SMTVA) is limited. In this paper, the configurations of some Multi-Mode and rubber-damped TVAs (MMTVA) having more than one inertial mass are introduced firstly, then a detailed procedure for modelling a TV system for a generic crankshaft system is presented. Thirdly, an optimisation method for determining the design parameters of a MMTVA (mass ratios, frequency ratios and damping ratios) is developed. The proposed calculation method is based on reducing the TV of a crankshaft. The calculated results show that MMTVA can reduce crankshaft TV greatly although the damping of each SMTVA in a MMTVA is provided with the rubber materials.

Keywords: multi-mode torsional vibration absorbers; rubber-damped torsional vibration absorbers; engine crankshaft; vibration control; optimisation; vehicle design; vehicle vibration.

DOI: 10.1504/IJVD.2008.020886

International Journal of Vehicle Design, 2008 Vol.47 No.1/2/3/4, pp.176 - 188

Available online: 22 Oct 2008 *

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