| 航空发动机球轴承热分析 |
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| 引用本文： | 韩民政,饶寿期.航空发动机球轴承热分析[J].航空动力学报,1992,7(4):343-347,395. |
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| 作者姓名： | 韩民政 饶寿期 |
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| 作者单位： | 北京航空航天大学405教研室，北京航空航天大学 100083 |
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| 摘 要： | 在动力学分析的基础上,对航空发动机高速球轴承进行了热分析。首先在润滑模型分析的基础上,对球轴承的生成热速率作了分析计算。通过对球轴承中复杂的传热关系研究,进而采用有限元法、系统平衡法和经验公式相结合的方法计算了球轴承系统的温度分布。在温度场计算中,对内热源的分配和边界条件的处理进行了深入研究。最后对某发动机主轴球轴承进行了计算,结果和606研究所提供的试验数据基本相符,其误差不大于百分之五。
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| 关 键 词： | 高速球轴承 热分析 |
| 收稿时间： | 1991/10/1 0:00:00 |
THERMAL ANALYSIS OF AEROENGINE MAIN SHAFT BALL BEARING |
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| Han Mingzheng and Rao Shouqi.THERMAL ANALYSIS OF AEROENGINE MAIN SHAFT BALL BEARING[J].Journal of Aerospace Power,1992,7(4):343-347,395. |
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| Authors: | Han Mingzheng and Rao Shouqi |
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| Institution: | Beijing University of Aeronautics and Astronautics;Beijing University of Aeronautics and Astronautics |
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| Abstract: | An analysis of the heat generation in a high speed ball bearing system of anaeroengine is considered in detail on the basis of dynamical analysis. First, the heat generation rate is calculated according to the elastohydrodynamic lubrication theory. Then, considering complex relationship of heat transfer, the temperature contribution in the ball bearing system is calculated by using the combination of the finite element method, finite difference method, system heat equilibrium method and empirical formulas. Contribution of inner heat sources and treatment of boundary conditions in the calculation are analyzed thoroughly. Finally, thermal analysis of the ball bearing for a specified Aeroengine is made. Calculation results are shown in a good agreement with the experimental data offered by Shenyang Aeroengine Research Institute. |
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