A crankshaft system model for structural dynamic analysis of internal combustion engines

被引：56
|
作者：
Mourelatos, ZP [1 ]
机构：
[1] Gen Motors, Res & Dev & Planning, Vehicle Anal & Dynam Lab, Warren, MI 48090 USA
来源：
COMPUTERS & STRUCTURES | 2001年 / 79卷 / 20-21期
关键词：
crankshaft-block dynamic interaction; dynamic substructuring; journal bearing lubrication; engine noise; vibration and harshness; crankshaft design;
D O I：
10.1016/S0045-7949(01)00119-5
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A system model for analyzing the dynamic behavior of an internal combustion engine crankshaft is described. The model couples the crankshaft structural dynamics, the main bearing hydrodynamic lubrication and the engine block stiffness using a system approach. A two-level dynamic substructuring technique is used to predict the crankshaft dynamic response based on the finite-element method. The dynamic substructuring uses a set of load-dependent Ritz vectors. The main bearing lubrication analysis is based on the solution of the Reynold's equation. Comparison with experimental results demonstrates the accuracy of the model. Numerical results also show the capabilities and significance of the model in engine crankshaft design. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2009 / 2027
页数：19
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