| 用子结构传递矩阵法计算航空发动机转子-支承系统动力特性 |
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| 引用本文： | 项松,王克明.用子结构传递矩阵法计算航空发动机转子-支承系统动力特性[J].沈阳航空工业学院学报,2005,22(4):1-3. |
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| 作者姓名： | 项松 王克明 |
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| 作者单位： | 沈阳航空工业学院飞行器动力与能源工程学院,辽宁,沈阳,110034 |
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| 摘 要： | 子结构传递矩阵法是一种用于计算复杂转子系统动力特性的方法.利用子结构传递矩阵法对某转子系统动力特性进行了计算分析,同时改变不同位置的支承刚度,目的在于探求哪个支承刚度对该转子临界转速的影响最显著.结果表明：低压涡轮后支承的刚度变化对临界转速的影响最显著.
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| 关 键 词： | 子结构传递矩阵法 转子动力特性 航空发动机 |
| 文章编号： | 1007-1385(2005)04-0001-03 |
| 修稿时间： | 2005年6月13日 |
Dynamic characteristic analysis of aero-engine rotor support system with sub-structure transfer matrix method |
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| XIANG Song,WANG Ke-ming.Dynamic characteristic analysis of aero-engine rotor support system with sub-structure transfer matrix method[J].Journal of Shenyang Institute of Aeronautical Engineering,2005,22(4):1-3. |
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| Authors: | XIANG Song WANG Ke-ming |
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| Abstract: | Sub-structure transfer matrix method is an useful approach to calculate the dynamic characteristics of a complex rotor system. In this paper, sub-structure transfer matrix method is utilized to calculate the dynamic characteristics of a rotor system. The critical-speed are calculated for different support stiffness, and the purpose is to find which support stiffness affects the critical-speed most significantly. The results show that the influence of low presser turbine (LPT) rear support stiffness on critical-speed is most significant. |
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| Keywords: | sub-structure transfer matrix method rotor dynamic characteristics aero-engine |
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