| 曲轴—轴承系统多工况动力学与摩擦学耦合分析 |
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| 引用本文： | 何芝仙,干洪,童宝宏.曲轴—轴承系统多工况动力学与摩擦学耦合分析[J].车用发动机,2010(3). |
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| 作者姓名： | 何芝仙 干洪 童宝宏 |
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| 作者单位： | 1. 安徽工程大学机械与汽车学院,安徽,芜湖,241000
2. 安徽工业大学机械工程学院,安徽,马鞍山,242003 |
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| 基金项目： | 安徽省高校省级科学研究重点项目 |
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| 摘 要： | 以实测示功图为计算依据,以动力学仿真软件ADAMS为工具,以某4缸柴油机的曲轴—轴承系统为研究对象,耦合分析多工况作用下曲轴—轴承系统动力学行为和摩擦学特性。得到的主要结论是:主轴颈中心径向振动响应振幅随转速提高而降低,随最小油膜厚度增大而上升,而最大油膜压力的变化规律主要取决于气缸最高燃烧压力;主轴颈中心径向振动响应振幅和最大油膜压力随负荷提高而上升,最小油膜厚度随负荷的提高而降低。
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| 关 键 词： | 曲轴 轴承 示功图 振动响应 最大油膜压力 最小油膜厚度 |
Multi-condition Coupling Analysis on Dynamics and Tribology for Crankshaft-bearing System |
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| HE Zhi-xian,GAN Hong,TONG Bao-hong.Multi-condition Coupling Analysis on Dynamics and Tribology for Crankshaft-bearing System[J].Vehicle Engine,2010(3). |
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| Authors: | HE Zhi-xian GAN Hong TONG Bao-hong |
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| Institution: | HE Zhi-xian1,GAN Hong1,TONG Bao-hong2 (1.School of Mechanical , Automobile engineering Anhui University of Engeering,Wuhu 241000,China,2.School of Mechanical Engineering,Anhui University of Technology,Maanshan 243002,China) |
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| Abstract: | The dynamics behavior and tribology performance of various operating conditions for a 4-cylinder diesel crankshaft-bearing system were analyzed with ADAMS dynamical simulating software according to the actual indicator diagram.The results show that the radial vibration amplitude of crankshaft journal centers decreases with the increase of speed and increases with the increase of minimum oil film thickness.The maximum oil film pressure in main bearings is mainly influenced by the maximum cylinder combustion ... |
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| Keywords: | crankshaft bearing indicator diagram vibration response maximum oil film pressure minimum oil film thickness |
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