| 载荷扰动下滑动推力轴承绝热瞬态过程分析 |
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| 引用本文： | 马希直,朱均.载荷扰动下滑动推力轴承绝热瞬态过程分析[J].润滑与密封,2009,34(3). |
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| 作者姓名： | 马希直 朱均 |
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| 作者单位： | 1. 南京航空航天大学机电学院,江苏南京,210016
2. 西安交通大学润滑理论及轴承研究所,陕西西安,710049 |
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| 摘 要： | 分析了滑动推力轴承在载荷冲击下的绝热瞬态行为.通过对轴承油膜压力、温度及推力盘动力学建模,应用有限差分法以及Newton-Raphson法对模型求解,获得了大载荷扰动工况下滑动推力轴承热瞬态性能参数的非线性变化规律.讨论了载荷幅值,初始速度等对热瞬态过程的影响.结果表明,载荷冲击会在短时间内造成油膜温度显著升高及最小膜厚减小,从而导致轴承在瞬态过程中失效.
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| 关 键 词： | 推力轴承 热瞬态 温度 响应 |
A Study on Adiabatic Transient Behavior of Thrust Bearing under Dynamic Operating Load |
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| Ma Xizhi,Zhu Jun.A Study on Adiabatic Transient Behavior of Thrust Bearing under Dynamic Operating Load[J].Lubrication Engineering,2009,34(3). |
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| Authors: | Ma Xizhi Zhu Jun |
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| Affiliation: | 1.College of Mechanical and Electrical Engineering;Nanjing University of Aeronautics and Astronautics;Nanjing Jiangsu 210016;China;2.College of Mechanical Engineering;Xi'an Jiaotong University;Xi'an Shaanxi 710049;China |
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| Abstract: | Adiabatic thermal transient behavior of thrust bearing was studied when the load changed abruptly.Thermal transient models of thrust bearing were established and they were solved by finite differential methods and Newton-Raphson methods.Responses of the bearing kinetic parameters were got.The evolution of highest film temperature,minimum film thickness and other parameters of oil film during the transient period were presented,the influences of load amplitude and the initial runner rotational speed were dis... |
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| Keywords: | thermal transient thrust bearing temperature response |
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