卡箍-管路系统固有特性计算与试验方法

柴清东; 朴玉华; 马辉; 吴文轩; 孙伟

doi:10.13224/j.cnki.jasp.2019.05.008

卡箍-管路系统固有特性计算与试验方法

doi: 10.13224/j.cnki.jasp.2019.05.008

柴清东^1,2,
朴玉华¹,
马辉^1,2,
吴文轩¹,
孙伟¹

1.
东北大学机械工程与自动化学院,沈阳 110819
2.
东北大学航空动力装备振动及控制教育部重点实验室,沈阳 110819

基金项目: 国家自然科学基金(11772089); 中央高校基本科研业务费专项资金(N170308028); 辽宁省高等学校创新人才支持计划(LR2017035)

计量
- 文章访问数: 608
- HTML浏览量: 8
- PDF量: 507
- 被引次数: 0
出版历程
- 收稿日期: 2018-11-29
- 刊出日期: 2019-05-28

Calculation of natural characteristics and experimental methods of the clamp-pipe system

摘要

摘要: 以航空发动机中的卡箍-管路系统为研究对象,基于自主设计的卡箍刚度试验测试装置,对直径为8 mm的卡箍的线刚度和角刚度进行了试验测试。根据实测卡箍刚度,采用线性弹簧对其进行离散化等效处理,并基于自编有限元法建立了卡箍-管路系统的动力学模型。通过试验与仿真所获得的固有频率及频响函数的对比,从而验证了卡箍刚度测定及有限元模型的合理性,并进一步研究了拧紧力矩对卡箍-管路系统固有频率的影响。结果表明:拧紧力矩的增加会导致管路的固有频率增大,且针对所研究的卡箍,当拧紧力矩大于8 N·m时,管路固有频率逐渐趋于稳定。
- 管路 /
- 卡箍 /
- 试验测试 /
- 固有频率 /
- 频响函数
Abstract: In view of the clamp-pipe system in aero-engine, the linear stiffness and angular stiffness of clamps with diameter of 8 mm was obtained based on self-designed experimental rig. The clamp was discretized into several springs according to the experimental results, and a dynamic model of the clamp-pipe system was proposed based on the finite element method. The measured stiffness of clamps and the finite element model was verified by comparing with the measured and simulated natural frequencies and corresponding frequency response functions. Furthermore, the effect of tightening torque on the natural frequencies of the clamp-pipe system was studied. The results show that the natural frequencies of the pipe increase with the tightening torque. For the clamps studied, the natural frequencies of the pipe gradually become stable value when the tightening torque is greater than 8 N·m.
- pipe /
- clamp /
- experimental testing /
- natural frequency /
- frequency response function

HTML

参考文献(18)

[1]	航空发动机设计手册总编委会.航空发动机设计手册:第19册转子动力学及整机振动［M］.北京:航空工业出版社,2000.
[2]	ALIZADEH A A,MIRDAMADI H R,PISHEVAR A.Reliability analysis of pipe conveying fluid with stochastic structural and fluid parameters［J］.Engineering Structures,2016,122:24-32.
[3]	TIAN Jialin,YUAN Changfu,YANG Lin,et al.The vibration characteristics analysis of pipeline under the action of gas pressure pulsation coupling［J］.Engineering Failure Analysis,2016,16(3):499-505.
[4]	尹泽勇,陈亚农.卡箍刚度的有限元计算与实验测定［J］.航空动力学报,1999,14(2):179-182.YIN Zeyong,CHEN Yanong.Finite element analysis and experimental measurement of stiffness of hoop［J］.Journal of Aerospace Power,1999,14(2):179-182.(in Chinese)
[5]	GAO Peixin,ZHAI Jingyu,YAN Yangyang,et al.A model reduction approach for the vibration analysis of hydraulic pipeline system in aircraft［J］.Aerospace Science and Technology,2016,49:144-153.
[6]	GAO Peixin,ZHAI Jingyu,QU Fuzheng,et al.Vibration and damping analysis of aerospace pipeline conveying fluid with constrained layer damping treatment［J］.Journal of Aerospace Engineering,2018,232(8):1529-1541.
[7]	GAO Peixin,ZHAI Jingyu,HAN Qingkai,et al.Dynamic response analysis of aero hydraulic pipeline system under pump fluid pressure fluctuation［J］.Journal of Aerospace Engineering,2019,233(5):1585-1595.
[8]	ULANOV A M,BEZBORODOV S A.Calculation method of pipeline vibration with damping supports made of the MR material［J］.Procedia Engineering,2016,150:101-106.
[9]	王鸿鑫,权凌霄.航空管路块卡离散化模型分析及其对管系振动特性的影响研究［J］.机电工程,2016,33(10):1193-1197.WANG Hongxin,QUAN Lingxiao.Analysis of the discrete model of the aerial pipeline block and its influence on the vibration characteristics of the pipe system［J］.Mechanical and Electrical Engineering,2016,33(10):1193-1197.(in Chinese)
[10]	李占营,王建军,邱明星.简谐激励下柔性卡箍支承管路系统响应［J］.航空动力学报,2017,32(11):2705-2712.LI Zhanying,WANG Jianjun,QIU Mingxing,et al.Responses of pipe system with flexible hoop under harmonic excitation［J］.Journal of Aerospace Power,2017,32(11):2705-2712.(in Chinese)
[11]	刘伟,曹刚,翟红波,等.发动机管路卡箍位置动力灵敏度分析与优化设计［J］.航空动力学报,2012,27(12):2756-2762. LIU Wei,CAO Gang,ZHAI Hongbo,et al.Sensitivity analysis and dynamic optimization design of supports’ positions for engine pipelines［J］.Journal of Aerospace Power,2012,27(12):2756-2762.(in Chinese)
[12]	IREMAN T.Three-dimensional stress analysis of bolted single-lap composite joints［J］.Composite Structures,1998,43(3):195-216.
[13]	QIU Ming,YAN Jiafei,ZHAO Binhai,et al.A finite-element analysis of the connecting bolts of slewing bearings based on the orthogonal method［J］.Journal of Mechanical Science and Technology,2012,26(3):883-887.
[14]	WEI Lidui,DUAN Shulin,WU Ji,et al.Modal experiments and finite element analysis of the bolted structure considering interface stiffness and pretension［J］.International Journal of Plant Engineering and Management,2012,17(2):87-94.
[15]	NASSAR S A,GANESHMURTHY S,RANGANATHAN R M,et al.Effect of tightening speed on the torque-tension and wear pattern in bolted connections［J］.Journal of Pressure Vessel Technology,2007,129(3):1669-1681.
[16]	RAO Gang,WEI Guoqian.Inversion of pretightening force on bolts by FEA and its application［C］∥Proceedings of International Conference on Electrical and Control Engineering.Wuhan:IEEE China,2010:2824-2827.
[17]	PRADHAN S,MODAK S V.Normal response function method for mass and stiffness matrix updating using complex FRFs［J］.Mechanical Systems and Signal Processing,2012,32:232-250.
[18]	徐斌,高跃飞,余龙.MATLAB有限元结构动力学分析与工程应用［M］.北京：清华大学出版社,2009.