噪声与振动控制2017，Vol.37Issue(5)：180-184,197,6.DOI:10.3969/j.issn.1006-1355.2017.05.037
振动试飞数据归纳方法及在振动耐久试验中的应用
Inductive Methods for Vibration Flight Test Data Processing and Application in Vibration Endurance Tests
雷晓波 1张霞妹 1李密 1文敏 1雷蒂远1
作者信息
- 1. 中国飞行试验研究院发动机所,西安 710089
- 折叠
摘要
Abstract
Based on current national military standards and mathematical statistics principals, some processing methods of the vibration inductive procedures are proposed. And then the inductive methods for processing the periodic vibration and random vibration data in flight tests are established. First of all, the typical vibration data samples are selected and input to the inductive methods to obtain the vibration endurance test spectrum. Then, specific processing methods of the spectrum are given with an air-inlet measurement rake as an example. Finally, based on the vibration equivalent acceleration theory and with the vibration endurance test spectrum as the equivalent standard and the RMS as the acceleration factor, the equivalent acceleration calculation for the flight vibration data is carried out. And the equivalent time of vibration of all the flights is calculated successfully. The results show that the equivalent time of different flights varies widely. The present vibration inductive methods provide an important support for vibration flight test appraisal, while the inductive method of vibration endurance test spectrum with equivalent time calculation provides a new approach for obtaining the endurance test condition for aircrafts and aero-engine components.关键词
振动与波/振动试飞/振动归纳方法/耐久谱/进气道测量耙/加速因子Key words
vibration and wave/vibration flight test/vibration inductive methods/endurance test spectrum/air-inlet measurement rake/acceleration factor分类
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雷晓波,张霞妹,李密,文敏,雷蒂远..振动试飞数据归纳方法及在振动耐久试验中的应用[J].噪声与振动控制,2017,37(5):180-184,197,6.
