| 直升机中减速器谐响应分析与传感器优化布局 |
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| 引用本文： | 苏勋文,王少萍,朱冬梅,石健.直升机中减速器谐响应分析与传感器优化布局[J].北京航空航天大学学报,2011,37(9):1049-1053. |
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| 作者姓名： | 苏勋文 王少萍 朱冬梅 石健 |
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| 作者单位： | 北京航空航天大学自动化科学与电气工程学院,北京,100191;北京科技大学机械工程学院,北京,100093 |
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| 基金项目： | 航空科技创新基金资助项目(08D51010) |
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| 摘 要： | 研究了多自由度的振动数学模型.通过系统的故障频率来确定振动传感器的安装位置,提出了一种基于故障频率敏感的振动传感器优化布局方法,建立了直升机中减速器机匣有限元模型.利用谐响应分析方法,对中减速器机匣施加一故障激励信号.研究表明:机匣的不同位置对激励信号响应的振动幅值明显不同,齿轮故障时往往在啮合频率及其倍频处形成以转频为间隔的边频带,对该边频响应振幅最大的位置就是振动传感器安装的最佳位置,并提出了振动传感器优化布局函数.此方法同样适用于直升机传动系统其它部件的振动传感器位置选择,也适用于其它旋转机械的振动监测.
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| 关 键 词： | 直升机 振动测量 谐响应分析 传感器 建模 |
| 收稿时间： | 2010-04-27 |
Harmonic analysis and optimized vibration sensor locations of the helicopter intermediate gearbox |
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| Su Xunwen Wang Shaoping,Zhu Dongmei Shi Jian.Harmonic analysis and optimized vibration sensor locations of the helicopter intermediate gearbox[J].Journal of Beijing University of Aeronautics and Astronautics,2011,37(9):1049-1053. |
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| Authors: | Su Xunwen Wang Shaoping Zhu Dongmei Shi Jian |
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| Institution: | 1. School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. School of Mechanical Engineering, University of Science & Technology Beijing, Beijing 100083, China |
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| Abstract: | Multi-freedom vibration model has been studied.A methodology of optimized vibration sensor location,in which the amplitude was sensitive to fault frequency,was presented.First,a finite element model of the helicopter intermediate gearbox was constructed,then a signal stimulus was forced to the gearbox of the model by the method of harmonic analysis.The study shows that different locations have clear different amplitudes according to the signal stimulus.So the location,where the amplitude was the largest,sho... |
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| Keywords: | helicopter vibration measurement harmonic analysis sensors modeling |
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