Sensitivity analysis for reducing critical responses at the axle shaft of a lightweight vehicle |
| |
Authors: | C -J Kim Y J Kang B -H Lee H -J Ahn |
| |
Institution: | 1.Institute of Advanced Machinery and Design, School of Mechanical and Aerospace Engineering,Seoul National University,Seoul,Korea;2.ICE/EV Convergence Technology Research Center,Korea Automotive Technology Institute,Chungnam,Korea;3.Department of Mechanical Engineering,Soongsil University,Seoul,Korea |
| |
Abstract: | Critical responses are frequently detected at the coupled torsional beam axle (CTBA) of a lightweight vehicle. However, the
freedom to modify the design of the axle shaft is limited because the suspension system must satisfy other vehicle requirements
such as steering performance. Conventional sensitivity analysis cannot provide practical information about the resonant behavior
because the analysis only identifies the contribution of the axle shaft to the behavior. This paper presents a novel sensitivity
analysis based on transmissibility ratios (TRs). The vehicle components other than the axle shaft that can be modified to
control the critical spectra are identified using acceleration responses. A multi-body vehicle model is constructed to simulate
the proposed design modifications, and the simulation results show that the vibration of the axle shaft is considerably reduced
by the modifications. Because the TRs on the CTBA are effectively minimized through the modified design strategy, the resonant
response from the axle shaft can be controlled efficiently. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|