| 采用瞬态传递矩阵法分析复杂转子系统碰摩故障 |
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| 引用本文： | 姚红良,刘长利,李鹤,闻邦椿.采用瞬态传递矩阵法分析复杂转子系统碰摩故障[J].东北大学学报(自然科学版),2004,25(1):62-65. |
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| 作者姓名： | 姚红良 刘长利 李鹤 闻邦椿 |
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| 作者单位： | 东北大学,机械工程与自动化学院,辽宁,沈阳,110004;东北大学,机械工程与自动化学院,辽宁,沈阳,110004;东北大学,机械工程与自动化学院,辽宁,沈阳,110004;东北大学,机械工程与自动化学院,辽宁,沈阳,110004 |
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| 摘 要： | 采用Raccati传递矩阵和Newmark β法相结合的瞬态传递矩阵法分析碰摩故障转子系统的瞬态和稳态响应,用多次迭代的方法确定瞬时碰摩力的精确值·该方法能够分析多盘、多跨转子系统等复杂的非线性转子系统的碰摩故障,并且可以同时考虑陀螺力矩、非线性油膜力等多种因素的影响·最后利用本方法分析了一个含有非线性碰摩刚度的局部碰摩故障双跨转子系统的运动,发现了其中的拟周期、混沌等丰富的非线性现象,验证了本方法的可行性·
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| 关 键 词： | 瞬时传递矩阵 Newmark-β法 碰摩 瞬态响应 混沌 |
| 文章编号： | 1005-3026(2004)01-0062-04 |
| 修稿时间： | 2003年6月24日 |
Transient Transfer Matrix Method for Complicated Rotor Systems with Rub-Impact Fault |
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| YAO Hong-liang,LIU Chang-li,LI He,WEN Bang-chun.Transient Transfer Matrix Method for Complicated Rotor Systems with Rub-Impact Fault[J].Journal of Northeastern University(Natural Science),2004,25(1):62-65. |
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| Authors: | YAO Hong-liang LIU Chang-li LI He WEN Bang-chun |
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| Institution: | (1) Sch. of Mech. Eng. and Automat., Northeastern Univ., Shenyang 110004, China |
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| Abstract: | The Raccati transfer matrix method and Newmark-β method are combined together to analyze the transient and steady responses from rotor systems with rub-impact fault. Multi-iteration method was used to obtain the accurate value of transient rub-impacting force. The transient transfer matrix method proposed above is applied to complicated rotor system with rub-impact fault, such as a rotor system involving multi-disk, multi-step, or others, with factors such as gyroscopic moment and nonlinear oil-force taken into account. At last, a two-step rotor system with partial rub-impact fault pertaining to nonlinear stiffness is analyzed using the method, by which a lot of nonlinearities are found, and the feasibility of the method is therefore verified. |
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