| 基于三维有限元模型的双转子-支承系统动力学特性研究 |
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| 引用本文： | 王国丽,刘树辉,朱清乐.基于三维有限元模型的双转子-支承系统动力学特性研究[J].北京理工大学学报,2011,31(11):1292-1296. |
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| 作者姓名： | 王国丽 刘树辉 朱清乐 |
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| 作者单位： | 北京理工大学机械与车辆学院,北京,100081 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 针对航空发动机振动故障率较高的问题,计算分析双转子-支承系统在碰摩-不平衡故障下的轴承支反力并研究其影响因素.建立了双转子-支承系统和高压涡轮-机匣碰摩的三维有限元模型,利用Ansys 12.0计算了双转子-支承系统在碰摩力和不平衡量引起的简谐激振力作用下的轴承支反力.通过计算多种工况下的动态轴承支反力,获得了碰摩和不平衡量的分布及大小对轴承支反力的影响规律.
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| 关 键 词： | 双转子-支承系统 转子动力学 轴承支反力 |
| 收稿时间： | 2011/5/20 0:00:00 |
Study on Dynamic Characteristics of Dual Rotor-Supporting System Based on Three-Dimensional FEA Model |
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| WANG Guo-li,LIU Shu-hui and ZHU Qing-le.Study on Dynamic Characteristics of Dual Rotor-Supporting System Based on Three-Dimensional FEA Model[J].Journal of Beijing Institute of Technology(Natural Science Edition),2011,31(11):1292-1296. |
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| Authors: | WANG Guo-li LIU Shu-hui and ZHU Qing-le |
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| Institution: | School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | To deal with the issue of aero-engine vibration failure, bearing reactions of dual rotor-supporting system caused by rubbing and unbalance were calculated and analyzed. The three-dimensional FEA models of dual rotor-supporting system and high pressure turbine-casing rubbing model were established. With the functions of Ansys 12.0 and contact analysis, bearing reactions were simulated under the rubbing force and unbalance force. By calculating the bearing reaction results under various conditions, the influence of rubbing and unbalance on the bearing reactions were obtained. |
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| Keywords: | dual rotor-supporting system rotor dynamics bearing reaction |
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