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Analysis of Mechanical Mobility and Vibration Transfer Property in Powertrain - Vehicle’s Body System
ZHANG Shou-yuan;ZHANG Yi-min
   2012, 32 (1): 67-71.   DOI: 10.3969/j.issn.1006-1355-2012.01.016
Abstract （1581）            Save
A simplified multiple DOFs lumped-parameter elements model is established to study the dynamic properties of vibration path in powertrain-vehicle’s system in high frequency range. The relationships among isolator, interface velocity and each component’s mobility are derived. The main parameters influencing the dynamic properties of the vibration paths are determined by component’s parameter study. Finally, effective methods are proposed to perform dynamic design of the powertrain-body vibration transfer system.
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Study on the Design Method of Subsystems for NVH Structure-borne Noise
ZHANG Shou-yuan;ZHANG Yi-min
   2011, 31 (6): 131-134.   DOI: 10.3969/j.issn.1006-1355-2011.06.029
Abstract （1671）            Save
A method for vehicle interior structure noise design in the middle frequency range in early stage of development is proposed in this paper. The dominant cause of structure noise for main transfer path is determined according to the simulation result of the “Digital Mule” vehicle model and the reference vehicle model, and then NVH performance targets for corresponding subsystems are established. The overall target is finally reached by achieving subsystem targets. An example for powertrain induced noise confirms the efficiency of the proposed method.
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