| 发动机配气机构刚柔耦合动力学特性研究 |
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| 引用本文： | 张晓蓉,宋朝省,吴佳芸,朱才朝.发动机配气机构刚柔耦合动力学特性研究[J].汽车工程,2009,31(2). |
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| 作者姓名： | 张晓蓉 宋朝省 吴佳芸 朱才朝 |
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| 作者单位： | 1. 重庆科技学院机械学院,重庆,401331;重庆大学,机械传动国家重点实验宣,重庆,400030
2. 重庆大学,机械传动国家重点实验宣,重庆,400030 |
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| 摘 要： | 基于三维实体模型,运用刚柔耦合理论,把摇臂视为柔性体,采用动态子结构法,建立了某顶置气门发动机配气机构凸轮轴-摇臂-气门系统三维刚柔耦合动力学模型,对其动态特性进行了仿真,得出气门的动力学响应、摇臂动态应力等变化规律.结果表明该发动机配气机构气门升程曲线连续光滑,凸轮与摇臂工作接触过程中无脱离现象发生.
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| 关 键 词： | 发动机 配气机构 刚柔耦合动力学 |
A Research on Rigid-flexible Coupling Dynamics of Engine Valve-train |
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| Zhang Xiaorong,Song Chaosheng,Wu Jiayun,Zhu Caichao.A Research on Rigid-flexible Coupling Dynamics of Engine Valve-train[J].Automotive Engineering,2009,31(2). |
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| Authors: | Zhang Xiaorong Song Chaosheng Wu Jiayun Zhu Caichao |
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| Institution: | Zhang Xiaorong1,2,Song Chaosheng2,Wu Jiayun2 & Zhu Caichao21.College of Mechanical Engineering,Chongqing University of Science , Technology,Chongqing 401331,2.Chongqing University,State Key Laboratory of Mechanical Transmission,Chongqing 400030 |
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| Abstract: | Based on 3D solid model,applying the theory of rigid-flexible coupling dynamics,taking rocker arm as flexible body,and using dynamic substructure method,a 3D Rigid-flexible Coupling Dynamics Model for the camshaft-rocker-valve system of a overhead valve engine is established.A simulation on its dynamic characteristic is carried out,with the dynamics response of valve system and the changing rule of rocker arm dynamic stress obtained.The results show that the valve lift curve is continuous and smooth and the... |
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| Keywords: | engine valve train rigid-flexible coupling dynamics |
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