基于误差可靠性分布的航空管道动力学响应实验与分析

鲁华平; 贾普荣; 张峰; 刘永寿; 陈柏松

基于误差可靠性分布的航空管道动力学响应实验与分析

1.
西北工业大学力学与土木建筑学院,飞行器可靠性工程研究所西安 710072;
2.
空军航空大学机械工程系长春 130022

基金项目:

863计划项目(2009AA04Z418)

陕西省自然科学基础研究计划项目(SJ08A17)

西北工业大学科技创新基金项目(2008KJ02019)

高等学校学科创新引智计划项目(B07050)资助

详细信息

作者简介:
鲁华平(1982-)，讲师，博士研究生，研究方向为航空管道振动实验与仿真，lhp127@mail.nwpu.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2011-08-06
- 刊出日期: 2015-06-10

Testing and Analyzing Dynamic Response of Aviation Pipeline Based on Error Reliability Distribution

1.
Institute of Aircraft Reliability Engineering,Engineering Mechanics Department,Northwestern Polytechnical University,Xi'an 710072;
2.
Mechanics Department,Aviation University of Air Force,Changchun 130022

摘要

摘要: 通过管道稳态正弦基础激励动态响应实验,得到管道特定位置在不同激励频率下动力学响应实验数据;通过考虑了加速度传感器引起附加质量的航空管道模态特性及响应计算,并分别与管道实验数据进行对比分析;将计算值和实验值之间的误差作为分布变量,进行可靠性分布拟合和优良性检验;基于变量分布特性,结合发动机工作频率范围和数值计算结果,得到某型复杂航空管道在不同可靠度下的等效应力和位移响应值,并对其进行安全评估。结果表明:管道约束状态对模态测试和动态响应结果影响较大,数值计算结果和实验测试结果之间的误差服从正态分布,该分布可用于评估复杂管道的动力学特性。
- 航空管道 /
- 模态测试 /
- 动力学特性 /
- 可靠性分布 /
- 响应评估
Abstract: The dynamic response data were obtained with different excitation frequencies at some specific spots ofan ordinary pipeline through harmonic experiments in its steady state.Considering the additional mass caused byaccelerometers, mode characteristics and dynamic response data were calculated and compared with test results respectively.The calculation errors of test results were regarded as error reliability distribution variables, and the error reliability distribution was simulated and combined with calculation results and working frequency range of a jetengine.The equivalent stress and displacement response data were also obtained with the error reliability distribution for a certain complex pipeline, and its safety was evaluated.The paper concludes that the mode test and dynamic response results have great impact on the pipeline constraint.The calculation errors and test results obey theGaussian distribution.
- aviation pipeline /
- mode test /
- dynamic response /
- reliability /
- distribution

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参考文献(9)

[1]	冯震宙, 高行山, 刘永寿等. 某型飞机燃油 /液压系统故障统计与分析[J]. 飞机工程, 2007, 86: 50～54
[2]	Hamid Y, Barbara J, Asce A M. Probability of failure analysis due to internal corrosion in cast-iron pipes[J]. Journal of Infrastructure Systems, 2010，(3): 73～80
[3]	Semke W H, et al. Efficient dynamic structural response modelling of bolted flange piping systems[J]. International Journal of Pressure Vessels and Piping, 2006, 83: 767～776
[4]	Rao V, et al. Fundamental frequency for large amplitude vibrations of uniform timoshenko beams with central point concentrated mass using coupled displacement field method[J]. Journal of Sound and Vibration, 2006, 298: 221～232
[5]	费庆国, 韩晓林, 苏鹤玲. 响应面有限元模型修正的实现与应用[J]. 振动测试与诊断, 2010, 30(2): 132～134
[6]	《工程材料实用手册》编辑委员会. 工程材料实用手册[M]. 北京: 中国标准出版社, 2002
[7]	蒋仁言. 威布尔模型族特性、参数估计和应用[M]. 北京: 科学出版社, 1998
[8]	陈家鼎, 郑忠国. 概率与统计[M]. 北京大学出版社, 2007
[9]	付才高等. 航空发动机设计手册第十九分册[M]. 北京: 航空工业出版社, 2000