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Indexed by:期刊论文

Date of Publication:2022-06-28

Journal:振动与冲击

Issue:11

Page Number:186-189

ISSN No.:1000-3835

Abstract:The strength analysis of a 16 V-engine crankshaft was carried out under the normal operating mode, and the shock response analysis was conducted under shock of underwater explosion, using nonlinear multi-body dynamics and 3D finite element method. The 3D finite element solid models of crankshaft and other parts were created and reduced by substructure technique. Then multi-body dynamics program, considering joints added, was introduced to establish the multi-body dynamics model. The results of multi-body dynamics calculation, were transferred to the fine 3D finite element model(the single crank-beams model) of crankshaft, including the oil holes, and then the dynamic stress and fatigue strength of the crankshaft were analyzed under normal operating mode. At last, with shock load on the model, the dynamic stress and the strength analysis was carried out, and the reliability of the crankshaft under shock was checked.

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