| 曲轴-轴承系统机械行为的捆绑式分析方法 |
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| 引用本文： | 桂长林,何芝仙,李震,孙军.曲轴-轴承系统机械行为的捆绑式分析方法[J].内燃机学报,2010(2). |
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| 作者姓名： | 桂长林 何芝仙 李震 孙军 |
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| 作者单位： | 合肥工业大学机械与汽车学院;安徽工程科技学院机械工程系; |
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| 基金项目： | 国家自然科学基金资助项目(50175023);;安徽省高等学校自然科学重点研究资助项目(KJ2010A042) |
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| 摘 要： | 内燃机在运行时,各种机械行为是同时发生的。基于这种理念,提出一种求解曲轴-轴承系统动力学、摩擦学和刚度、强度的捆绑式分析方法。该方法首先通过曲轴-轴承系统动力学和摩擦学耦合分析,计算出动态油膜压力,然后动态施加于曲轴表面计算曲轴动应力。着重讨论曲轴倾斜和轴瓦弹性变形对曲轴-轴承系统动力学、主轴承摩擦学和曲轴动应力的影响。研究发现,曲轴倾斜和轴瓦变形对主轴承摩擦学和曲轴动应力的影响较大,对曲轴-轴承系统动力学影响相对较小。
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| 关 键 词： | 曲轴-轴承 动力学 摩擦学 曲轴倾斜 轴瓦弹性变形 |
Systematical Analysis Method for the Mechanical Behaviors of Crankshaft-Bearing System |
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| GUI Chang-lin,HE Zhi-xian,LI Zhen,SUN Jun.Systematical Analysis Method for the Mechanical Behaviors of Crankshaft-Bearing System[J].Transactions of Csice,2010(2). |
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| Authors: | GUI Chang-lin HE Zhi-xian LI Zhen SUN Jun |
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| Affiliation: | 1.School of Mechanical and Automobile Engineering/a>;Hefei University of Technology/a>;Hefei 230009/a>;China/a>;2.Department of Mechanical Engineering/a>;Anhui University of Technology and Science/a>;Wuhu 24100/a>;China |
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| Abstract: | Various mechanical behaviors occur during internal combustion engine operation.A systematical method,named as binding method,is used to analyze the multi mechanical behaviors of crankshaft-bearing system,including dynamics tribology stiffness and strength.Coupling analysis between dynamics and tribology in crankshaft-bearing system is conducted to obtain the dynamical oil film pressure of bearings,and dynamical stress is calculated by dynamically imposing oil film pressure on crankshaft journal surface.The ... |
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| Keywords: | Crankshaft-bearing system Dynamics Trobology Misalignment of crankshaft journal Elas-tic deformation of bush |
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