| 转子系统不平衡故障的再现方法浅析 |
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| 引用本文： | 叶瑞夺,王丽萍,罗忠,王德友,刘永泉.转子系统不平衡故障的再现方法浅析[J].航空发动机,2017,43(3):32-37. |
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| 作者姓名： | 叶瑞夺 王丽萍 罗忠 王德友 刘永泉 |
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| 作者单位： | 1. 东北大学机械工程与自动化学院，沈阳110819；2. 中国航发沈阳发动机研究所，沈阳110015 |
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| 基金项目： | 国家自然科学基金(11572082)、教育部基本科研业务费专项资金(N150304004, N140301001)、辽宁省高等
学校优秀人才支持计划(LJQ2015038)资助 |
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| 摘 要： | 针对转子系统不平衡特征再现设计问题,提出1种基于动力学相似关系的模型再现方法。根据转子系统的振动微分方程,通过积分模拟法和量纲分析法建立转子系统中转轴、转盘、弹性支承和不平衡量的相似关系。根据相似关系,设计了原型不平衡转子系统的动力学相似模型,利用有限元方法仿真验证了所得相似关系的正确性。试验采用最小二乘三点法识别原型与模型不平衡转子试验台的不平衡量,给出再现原型不平衡特征的过程,验证了不平衡特征再现设计方法的有效性。总结了基于动力学相似关系的转子系统不平衡特征再现设计方法。
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| 关 键 词： | 转子系统 不平衡 动力学相似 故障再现 模型试验 大型旋转机械 |
Reproduction Method for Unbalanced Faults of Rotor System |
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| Authors: | YE Rui-duo WANG Li-ping LUO Zhong WANG De-you LIU Yong-quan |
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| Abstract: | Aiming at the problem of unbalanced feature reproduction of rotor system, a method of model reconstruction based on
dynamic similarity criteria was presented. According to the vibration differential equation of the rotor system, the similarity relationship
among rotor shaft, disk, flexible support and unbalance amount was established by the integral simulation method and dimensional analysis
method. In the light of the similarity relationship, the dynamic similarity model of the prototype unbalanced rotor system was designed and
the correctness was verified using finite element method. The least square method was used to identify the unbalance of the prototype and
model rotor test bench system. The process of reproducing the unbalanced features was given. The effectiveness of the unbalanced feature
reproduction design method was verified by experiment. Unbalanced feature reproduction method of rotor system was summarized based on
dynamics similarity relationship |
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| Keywords: | rotor system unbalance dynamics similarity fault reproduction model test large rotating machineries |
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