| 冲击载荷作用下计入轴倾斜的轴-轴承系统动力学摩擦学行为研究 |
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| 引用本文： | 何芝仙,桂长林,李震,孙军.冲击载荷作用下计入轴倾斜的轴-轴承系统动力学摩擦学行为研究[J].轴承,2007(3):17-21. |
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| 作者姓名： | 何芝仙 桂长林 李震 孙军 |
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| 作者单位： | 1. 安徽工程科技学院,机械系,安徽,芜湖,241000;合肥工业大学,机械与汽车学院,合肥,230009
2. 合肥工业大学,机械与汽车学院,合肥,230009 |
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| 摘 要： | 以多柔体动力学分析为基础,通过ADAMS与Matlab联合仿真,研究在冲击激励力作用下计入轴受载变形倾斜时弹性轴-轴承系统的动力学和摩擦学行为。得到的主要结论是:间隙较大时,轴-轴承系统发生自激振动;计入轴受载变形倾斜,轴承的最大油膜压力大幅度上升,最小油膜厚度大幅度下降。
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| 关 键 词： | 滑动轴承 轴-轴承系统 动力学 摩擦学 冲击载荷 轴倾斜 |
| 文章编号： | 1000-3762（2007）03-0017-05 |
| 收稿时间： | 2006-10-12 |
| 修稿时间： | 2006-12-27 |
Dynamic and Tribological Behaviors of Flexible Shaft-Bearing System Under Shock Loads Considering Misalignment Caused by Shaft Deformation |
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| HE Zhi-xian,GUI Chang-lin,LI Zhen,SUN Jun.Dynamic and Tribological Behaviors of Flexible Shaft-Bearing System Under Shock Loads Considering Misalignment Caused by Shaft Deformation[J].Bearing,2007(3):17-21. |
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| Authors: | HE Zhi-xian GUI Chang-lin LI Zhen SUN Jun |
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| Abstract: | On the basis of analysis of dynamics for multi-flexible bodies,the dynamic and tribological behaviors of the flexible shaft-bearing system under a shock load are studied with the combining simulation of ADAMS and Matlab,considering shaft misalignment caused by elastic deflection of shaft.Numerical results show that self-exited vibration of the system happens if the radial clearance of bearing is larger.The minimum thickness of oil film for the bearings decreases to a great extent,and the maximum pressure of oil film increases greatly as well when journal misalignment is considered. |
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| Keywords: | sliding bearing shaft-bearing system dynamics tribology shock load shaft misalignment |
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