一种跨二阶柔性转子无试重模态平衡方法

doi:10.7527/S1000-6893.2013.0496

固体力学与飞行器总体设计

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一种跨二阶柔性转子无试重模态平衡方法

刘钢旗¹, 郑龙席¹, 梅庆², 黄晶晶¹

1. 西北工业大学动力与能源学院, 陕西西安 710072;
2. 中航工业航空动力机械研究所航空发动机振动技术航空科技重点实验室, 湖南株洲 412002

收稿日期:2013-10-16 修回日期:2013-12-27 出版日期:2014-04-25 发布日期:2014-01-07
通讯作者: 郑龙席，Tel.：029-88492414 E-mail：zhenglx@nwpu.edu.cn E-mail:zhenglx@nwpu.edu.cn
作者简介:刘钢旗男，硕士研究生。主要研究方向：航空发动机结构、强度、振动及可靠性。Tel：029-88492414 E-mail：lgqmaxwell@163.com；郑龙席男，博士，教授，博士生导师。主要研究方向：航空发动机结构、强度、振动及可靠性。Tel：029-88492414 E-mail：zhenglx@nwpu.edu.cn；梅庆男，硕士，研究员。主要研究方向：航空发动机结构、强度、振动及可靠性。Tel：029-88492414 E-mail：610332700@qq.com；黄晶晶女，博士研究生。主要研究方向：航空发动机结构、强度、振动及可靠性。Tel：029-88492414 E-mail：huangjingjing@nwpu.edu.cn
基金资助:
航空科学基金（20112153019）

Balancing Method of Flexible Rotor Across Second Order Without Trial Weights

LIU Gangqi¹, ZHENG Longxi¹, MEI Qing², HUANG Jingjing¹

1. College of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China;
2. Aviation Key Laboratory of Aeroengine Vibration Technology, AVIC Aviation Powerplant Research Institute, Zhuzhou 412002, China

Received:2013-10-16 Revised:2013-12-27 Online:2014-04-25 Published:2014-01-07
Supported by:
Aeronautical Science Foundation of China (20112153019)

摘要/Abstract

摘要：

为解决传统柔性转子动平衡方法需要添加试重、多次启动的问题，发展了一种基于无试重模态动平衡方法的柔性转子二阶动平衡方法。该方法得益于转子有限元建模技术的发展，通过Samcef Rotor获取转子平衡所需的各阶模态，结合测量所得参考点的振动信息，利用无试重模态动平衡方法计算得出平衡所需的配重大小和方位。运用该方法对试验转子分别进行了一阶和二阶平衡，每次平衡只需开车一次，平衡后一阶振幅下降59.44%，二阶振幅下降97.56%。试验结果表明：该方法可有效降低转子不平衡振动，减少平衡开车次数，大大提高了转子的平衡效率。

关键词: 柔性转子, 试重, 模态平衡, Samcef Rotor, 模态振型

Abstract:

In order to address the problem of traditional methods of flexible rotor balancing tests which requires adding weights and starting many times, this paper provides a new method without trial weights for flexible rotor balancing based on the development of rotor finite element modeling technology. It requires the modal shapes obtained by software Samcef rotor and the vibration information of reference points to obtain the size and orientation of the counterweight. This method is carried out on a test rotor. After balancing the amplitude of the rotor through the first critical speed is reduced by 59.44% and the amplitude of the rotor through the second critical speed is reduced by 97.56%. The results of the experiments demonstrate that this method can reduce rotor vibration and improve the efficiency of flexible rotor balancing.

Key words: flexible rotor, trial weights, modal balancing, Samcef rotor, modal shape

中图分类号:

刘钢旗, 郑龙席, 梅庆, 黄晶晶. 一种跨二阶柔性转子无试重模态平衡方法[J]. 航空学报, 2014, 35(4): 1019-1025.

LIU Gangqi, ZHENG Longxi, MEI Qing, HUANG Jingjing. Balancing Method of Flexible Rotor Across Second Order Without Trial Weights[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014, 35(4): 1019-1025.

参考文献

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

一种跨二阶柔性转子无试重模态平衡方法

Balancing Method of Flexible Rotor Across Second Order Without Trial Weights

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