转子支承系统临界转速概率分析的随机响应面法

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摘要为分析不确定因素影响下转子系统临界转速的概率分布规律，提出一种基于随机响应面的转子支承系统临界转速概率分析方法。该方法从临界转速与转子系统力学不确定参数的隐式函数关系入手，使用临界转速的随机响应面替代Campbell图，避开了使用Campbell图直接进行临界转速概率分析的困难。对典型双转子支承系统临界转速概率分析验证了该方法的准确性和高效性。

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	左彦飞1
	江志农1
	冯坤1
	王建军2

关键词 ：转子系统, 临界转速, 概率分布, 不确定分析, 随机响应面

Abstract：In order to analyze the probability distribution of the critical speeds of rotor systems influenced by uncertainties, a method based on stochastic response surface was proposed.The implicit function relationship between the critical speed and the uncertain parameters of the rotor system was approximated.By using stochastic response surface of the critical speed, the Campbell diagram was replaced to avoid the difficulties of directly using it to perform the stochastic critical speed analysis.The analysis of stochastic critical speed of a typical dual-rotor system verified the accuracy and efficiency of the proposed method.

Key words： rotor system critical speed probability distribution uncertainty analysis random response surface

收稿日期: 2018-05-08 出版日期: 2019-12-15

引用本文:

左彦飞1，江志农1，冯坤1，王建军2. 转子支承系统临界转速概率分析的随机响应面法[J]. 振动与冲击, 2019, 38(24): 85-90.
ZUO Yanfei1，JIANG Zhinong1，FENG Kun1，WANG Jianjun2. A stochastic response surface method for probability analysis of critical speeds of a rotor systems. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(24): 85-90.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2019/V38/I24/85

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