| 转子动力响应计算的显式直接积分方法 |
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| 引用本文： | 陈继光,于开平.转子动力响应计算的显式直接积分方法[J].汽轮机技术,2006,48(4):254-255. |
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| 作者姓名： | 陈继光 于开平 |
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| 作者单位： | 大庆油田物业集团,大庆,163453;哈尔滨工业大学航天学院,哈尔滨,150001 |
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| 摘 要： | 介绍了一个新的用于线性、非线性动力响应数值计算的显式算法。算法的显式特性不需要阻尼矩阵对角化的假设,这优于传统的中心有限差分方法。对基础松动与碰摩耦合的转子系统的非线性动力学响应,使用本文算法和Runge-Kutta算法的比较计算结果表明该算法是有效的,可以推广到更广泛的转子动力学问题。
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| 关 键 词： | 转子动力学 显式时间积分算法 非线性 碰摩 |
| 文章编号： | 1000-5884（2006）04-0254-02 |
| 收稿时间： | 2006-02-10 |
| 修稿时间： | 2006-02-10 |
A New Explicit Time Integration Algorithm for Calculating the Rotor Dinamics Response |
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| CHEN Ji-guang,YU Kai-ping.A New Explicit Time Integration Algorithm for Calculating the Rotor Dinamics Response[J].Turbine Technology,2006,48(4):254-255. |
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| Authors: | CHEN Ji-guang YU Kai-ping |
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| Affiliation: | 1 Property Management Corporation of Da Qing oil filed, Daqing 163453 ,China; 2 Department of Astronautics and Mechanics, Harbin Institute of Technology, Harbin 150001,China |
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| Abstract: | A new explicit single step time integration method is presented for linear and nonlinear dynamic system.The presented scheme is second-order accurate and explicit inherently with diagonal mass matrix,even when the damping ma- trix not diagonal or the internal force vector is a non-linear function of velocities.The advantage of the proposed algorithm is verified numerically by calculating nonlinear dynamic behaviors of the rotor system with local rubbing and pedestal loose- ness faults using both the proposed method and explicit Runge-Kutta method. |
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| Keywords: | rotor dynamics explicit time integration algorithm nonlinear rub |
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