柴油机运动机构综合强度动态分析

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振动与冲击 ›› 2010, Vol. 29 ›› Issue (8) : 111-114,.

论文

柴油机运动机构综合强度动态分析

黄映云1;高浩鹏1;王宗余2

作者信息 +

Dynamic integrative intensity analysison moving mechanism of diesel

HUANG Ying-yun1;GAO Hao-peng1;WANG Zong-yu2

Author information +

文章历史 +

摘要

本文以计算多体动力学理论为指导，考虑到机构组件间的耦合因素，在柴油机整机实体建模的基础上建立了运动机构的刚柔混合多体动力学模型以及曲轴振动分析模型；并通过转速波动实验和振动烈度实验验证了模型的正确性。在此基础上分析了组件的动态强度，并利用有限元方法进行对比验证，结果表明了多体动力学方法应用柴油机运动机构强度校核的可靠性与准确性；另外通过曲轴振动分析模型对曲轴进行振动耦合分析。整个分析过程提供了一种柴油机运动机构组件强度校核、结构优化以及故障分析时简单可靠可行的方法。

Abstract

With the instruction of computational dynamics of multi-body system, considering coupling factor between the subassemblies of mechanism, the whole diesel system consisting of rigid-flexible bodies model of the moving mechanism and the model of crankshaft torsional vibration was established. The integral model was proved by the vibration intensity experiment and the speed fluctuation experiment. of the diesd Based on these, the dynamic strength of the diesel wa andysed multi-body systems dynamics and finite element method. The comparative results show that the method using multi-body systems dynamics analyzing the strength of moving mechanism of diesel is correct and credible. Then the vibration coupling analysis of crankshaft was analysed by using the modal of crankshaft torsional vibration. The whole analysis process provides a simple and feasible appoach to check the strength of the diesel moving mechanism, to optimize structure, and to implement fault analysis.

导出引用

黄映云;高浩鹏;王宗余. 柴油机运动机构综合强度动态分析[J]. 振动与冲击, 2010, 29(8): 111-114,

HUANG Ying-yun;GAO Hao-peng;WANG Zong-yu. Dynamic integrative intensity analysison moving mechanism of diesel[J]. Journal of Vibration and Shock, 2010, 29(8): 111-114,