RESEARCH ON CO-SIMULATION OF FINITE ELEMENT METHOD AND THE MULTI BODY DYNAMICS OF THE CRANKSHAFT FATIGUE LIFE

CUI GuangJun

doi:10.16579/j.issn.1001.9669.2016.02.032

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RESEARCH ON CO-SIMULATION OF FINITE ELEMENT METHOD AND THE MULTI BODY DYNAMICS OF THE CRANKSHAFT FATIGUE LIFE

更新时间：2022-09-22

- RESEARCH ON CO-SIMULATION OF FINITE ELEMENT METHOD AND THE MULTI BODY DYNAMICS OF THE CRANKSHAFT FATIGUE LIFE
- Journal of Mechanical Strength Vol. 38, Issue 2, Pages: 394-398(2016)
- 作者机构：
  
  1. 江苏联合职业技术学院徐州机电工程分院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2016.02.032
  CLC：
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CUI GuangJun. RESEARCH ON CO-SIMULATION OF FINITE ELEMENT METHOD AND THE MULTI BODY DYNAMICS OF THE CRANKSHAFT FATIGUE LIFE. [J]. 38(2):394-398(2016)
DOI：

CUI GuangJun. RESEARCH ON CO-SIMULATION OF FINITE ELEMENT METHOD AND THE MULTI BODY DYNAMICS OF THE CRANKSHAFT FATIGUE LIFE. [J]. 38(2):394-398(2016) DOI： 10.16579/j.issn.1001.9669.2016.02.032.

摘要

对于某型号的柴油机曲轴轴系,以有限元方法、动力学仿真分析以及疲劳分析为基础,采用有限元和多体动力学联合仿真对曲轴疲劳寿命进行预测。在MSC.Nastran中对曲轴进行模态分析,得到模态中性文件(*.mnf),用柔性曲轴替换刚性曲轴,得到刚柔耦合的多体动力学模型,在Adams中对曲轴进行载荷历程计算,把得到的.dac文件导入MSC.Fatigue,完成了曲轴的疲劳寿命分析,为曲轴的优化设计提供参考。

Abstract

In this paper,on the basis of the finite element method,the dynamic simulation analysis and fatigue analysis,co-simulation of finite element and multibody dynamics was used to predict the crankshaft fatigue life. MSC. Nastran was used to make the modal analysis for getting the modal neutral file（ *. mnf）. The rigid crankshaft was replaced by the flexible crankshaft,then this paper built a coupled multi-body dynamics model of engine by using ADAMS. Load history for the crankshaft is calculated in ADAMS,then import the gotten. dac files into MSC. Fatigue. Analysis of the crankshaft fatigue life is completed.The results may be valuable for optimal design of crankshaft.

关键词

模态分析曲轴柔性化动力学载荷历程曲轴疲劳寿命联合仿真

Keywords

Modal analysisCrankshaft flexibilityDynamicsLoad historyCrankshaft fatigue lifeCosimulation

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