Diesel engine camshaft radial vibration dynamic characteristics optimization

被引：0

作者：

Liu, Gong-Wen ^{[1
]}

Hao, Zhi-Yong ^{[1
]}

Wang, Lian-Sheng ^{[1
]}

Zheng, Kang ^{[1
]}

机构：

[1] College of Energy Engineering, Zhejiang University

来源：

Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2014年 / 48卷 / 05期

关键词：

Camshaft; Dissymmetric cam profile; Oil dynamic viscosity; Radial vibration; Relative clearance;

D O I：

10.3785/j.issn.1008-973X.2014.05.022

中图分类号：

学科分类号：

摘要：

For a large radial vibration and contact force between camshaft and sliding bear in a diesel engine, a camshaft dynamic model was built with consideration of bearing stiffness, friction, velocity fluctuation and cylinder explosion pressure, and corresponding analysis of simulation analysis(CAE) and cam profile optimization were done. Then comparative analysis among bearing radial force, camshaft section vibration velocity and order vibration was finished between two models. Results show that dissymmetric cam profile reduces bearing radial vibration velocity, radial force and vibration effect in 0.5 and 2 order, providing some guidance for camshaft conceptual design and optimization. And on the basis of camshaft original model, the effect on camshaft radial characteristics from oil kinetic viscosity and bearing relative clearance were researched.

引用

页码：904 / 910

页数：6

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