一种有效的空间齿轮传动系统振动测点选择方法

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (22) : 163-166.

论文

一种有效的空间齿轮传动系统振动测点选择方法

齐立群1 张广玉1 单小彪1 余辉2

作者信息 +

An effective method of selecting vibration measurement points for a space gear transmission system

QI Li-qun 1 ZHANG Guang-yu 1 SHAN Xiao-biao1 YU Hui 2

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文章历史 +

摘要

针对空间飞行器中小模数齿轮寿命实验中振动测点定位困难的问题，提出了一种确定振动测点最佳位置的方法。通过对齿轮系统进行有限元模态分析和谐响应分析，得到了系统的刚度分布，进而计算待选测点的谐响应幅值及其矢量和，判定振动测点的理论最佳位置。搭建了空间齿轮传动系统实验平台，采用峭度指标法对理论分析得到的最佳测点进行了实验验证。实验表明：理论分析得到的9个最优测点中，8个测点理论分析结果和实验结果基本一致，验证了方法的正确性。该方法为齿轮箱等复杂系统振动测点的布置和优化提供了理论依据，对空间飞行器驱动机构寿命实验研究有重要意义。

Abstract

An effective method was presented to locate the best vibration measurement points in the small module space gear life experiment, for overcoming the blindness on arranging measurement points by the traditional methods, and improving the precision of signal testing. The stiffness distribution of the system was obtained by using the finite element modal and harmonic response analysis. The vector sum of harmonic response amplitude and the theoretical best location of vibration measurement point were acquired. The theoretical best vibration measurement points were verified by using the kurtosis index method based on a space gear vibration platform. The experimental results show that eight out of nine theoretical points are in good agreement with the experimental results. It verifies the validity of the presented method. The present work provides a theoretical and experimental foundation for the further research of space vehicle transmission mechanism life.

导出引用

齐立群张广玉单小彪余辉. 一种有效的空间齿轮传动系统振动测点选择方法[J]. 振动与冲击, 2012, 31(22): 163-166

QI Li-qun ZHANG Guang-yu SHAN Xiao-biao YU Hui . An effective method of selecting vibration measurement points for a space gear transmission system[J]. Journal of Vibration and Shock, 2012, 31(22): 163-166