航空发动机卡箍装配应力试验与装配参数控制方法

刘中华; 贾铎; 王鑫

doi:10.13224/j.cnki.jasp.2020.02.016

航空发动机卡箍装配应力试验与装配参数控制方法

doi: 10.13224/j.cnki.jasp.2020.02.016

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出版历程
- 收稿日期: 2019-09-17
- 刊出日期: 2020-02-28

Clamp assembly stress test of aero-engine and assembly parameter control method

Shenyang Engine Research Institute,Aero Engine Corporation of China,Shenyang 110015,China

摘要

摘要: 通过理论公式推导分析影响卡箍装配应力的主要参数,并通过试验方法对影响卡箍装配应力的因素进行了系统分析与研究,以3种规格、每种规格5个样本的卡箍作为试验对象,测试并统计分析螺栓拧紧力矩值、加载次数、装配方法对卡箍的应力影响规律。研究结果表明:靠近螺栓孔的卡箍表面为应力集中位置,卡箍随加载次数的增多应力呈降低趋势,但重复加载次数不宜过多,会导致卡箍局部较大的变形和磨损,增加2 mm垫片的方法对降低卡箍应力水平的效果最好,下降率可达468%;相比之下,限制卡箍位移后加载的方法应力下降率约为364%,而加载后校正的方法应力下降率约为286%。
- 卡箍 /
- 拧紧力矩 /
- 加载次数 /
- 装配应力 /
- 分散度 /
- 控制方法
Abstract: The main parameters affecting the assembly stress of clamps were derived through theoretical formulas and analyzed. Further more, the factors affecting the assembly stress of the clamps were systematically analyzed and researched by test method. In the test, the effects of bolt tightening torque, loading times, and assembly plans on the stress of the clamps were tested and statistically analyzed by using 3 types of clamps with 5 samples of each type as the test object. According to the research results, the surface of the clamp near the bolt hole was a stress concentration position. The stress of the clamp decreased with the increase of loading times, but the repeated loading times should not be too much, otherwise the local area of the clamp had large deformation and wear. The test results also showed that the method of adding a 2 mm gasket had the best effect on reducing the stress level of the clamp, and the reduction rate can reach 468%. In contrast, the reduction rate was 364% and 286% respectively by means of loading after restricting the displacement of the clamp and the method of correction after loading.
- clamp /
- tightening torque /
- loading times /
- assembly stress /
- dispersion degree /
- control method

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参考文献(19)

[1]	李洋,佟文伟,韩振宇,等.发动机引气管卡箍断裂原因分析［J］.失效分析与预防,2013,8(3):167-172. LI Yang,TONG Wenwei,HAN Zhenyu,et al.Fracture analysis of aero-engine cited trachea clamp［J］.Failure Analysis and Prevention,2013,8(3):167-172.(in Chinese)
[2]	李继世,张大义,王立,等.考虑流体介质影响的管路模态特性分析［J］.航空动力学报,2019,34(3):671-677. LI Jishi,ZHANG Dayi,WANG Li,et al.Modal characteristics analysis for pipelines considering influence of fluid medium［J］.Journal of Aerospace Power,2019,34(3):671-677.(in Chinese)
[3]	高晔,孙伟,朴玉华,等.基于实测频响函数反推管路卡箍支承刚度与阻尼［J］.航空动力学报,2019,34(3):664-670. GAO Ye,SUN Wei,PIAO Yuhua,et al.Inverse identification of support stiffness and damping of hoop based on measured FRF［J］.Journal of Aerospace Power,2019,34(3):664-670.(in Chinese)
[4]	郭家良,王维,贾文强,等.航空发动机外部管路调频方法研究［J］.航空发动机,2017,43(6):33-38. GUO Jialiang,WANG Wei,JIA Wenqiang,et al.Investigation on frequency modulation methods of aeroengine external pipe［J］.Aeroengine,2017,43(6):33-38.(in Chinese)
[5]	肖伟,高永丹,欧阳飞,等.发动机滑油弯管卡箍衬垫故障分析［J］.失效分析与预防,2012,7(4):248-252. XIAO Wei,GAO Yongdan,OUYANG Fei,et al.Failure analysis of clamp of bending tube in engine［J］.Failure Analysis and Prevention,2012,7(4):248-252.(in Chinese)
[6]	李刚,李明,杨小奎,等.铝合金-丁腈橡胶航空带垫卡箍典型环境损伤研究［J］.装备环境工程,2017,14(6):65-70. LI Gang,LI Ming,YANG Xiaokui,et al.Damage on aluminum alloy-nitrile rubber aeronautic clamp with cushion in typical environments［J］.Equipment Environment Engineering,2017,14(6):65-70.(in Chinese)
[7]	周宁波,郑贤中,郑晓敏,等.预紧卡箍式快开结构的安全强度分析［J］.武汉工程大学学报,2012,34(4):53-58. ZHOU Ningbo,ZHENG Xianzhong,ZHENG Xiaomin,et al.Safety strength of preloaded clamp quick-opening structure［J］.Journal of Wuhan Institute of Technology,2012,34(4):53-58.(in Chinese)
[8]	刘中华,贾铎,刘鑫.某航空发动机卡箍断裂故障分析［J］.航空发动机,2019,45(3):77-81. LIU Zhonghua,JIA Duo,LIU Xin.Fracture failure analysis of clamp for an aeroengine［J］.Aeroengine,2019,45(3):77-81.(in Chinese)
[9]	郑敏,景绿路,张艳,等.航空卡箍失效分析［J］.飞机设计,2014,34(6):71-75. ZHENG Min,JING Lülu,ZHANG Yan,et al.Failure analysis of clamps for aviation［J］.Aircraft Design,2014,34(6):71-75.(in Chinese)
[10]	张大义,夏颖,张启成,等.金属橡胶力学性能研究进展与展望［J］.航空动力学报,2018,33(6):1432-1445. ZHANG Dayi,XIA Ying,ZHANG Qicheng,et al.Researches on metal rubber mechanics properties in retrospect and prospect［J］.Journal of Aerospace Power,2018,33(6):1432-1445.(in Chinese)
[11]	马艳红,张启成,张大义,等.静载荷作用下金属橡胶失效判据及耐久性试验［J］.北京航空航天大学学报,2016,42(2):227-235. MA Yanhong,ZHANG Qicheng,ZHANG Daying,et al.Failure criterion and durability characteristics of metal rubber under static compression load［J］.Journal of Beijing University of Aeronautics and Astronautics,2016,42(2):227-235.(in Chinese)
[12]	柴清东,朴玉华,马辉,等.卡箍-管路系统固有特性计算与试验方法［J］.航空动力学报,2019,34(5):1029-1035. CHAI Qingdong,PIAO Yuhua,MA Hui,et al.Calculation of natural characteristics and experimental methods of the clamp-pipe system［J］.Journal of Aerospace Power,2019,34(5):1029-1035.(in Chinese)
[13]	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.
[14]	QIU M,YAN J,ZHAO B,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.
[15]	KIM J,YOON J C,KANG B S.Finite element analysis and modeling of structure with bolted joints［J］.Applied Mathematical Modelling,2007,31(5):895-911.
[16]	徐灏.机械设计手册:第3卷［M］.北京:机械工业出版社,1995:21-53.
[17]	中国航空材料手册编辑委员会.中国航空材料手册:第1卷结构钢不锈钢［M］.北京:中国标准出版社,1988:658-675.
[18]	张旭方,PANDEY M D,张义民.结构随机响应计算的一种数值方法［J］.中国科学:技术科学,2012,42(1):103-114. ZHANG Xufang,PANDEY M D,ZHANG Yimin.A numerical method for structural uncertainty analysis［J］.Science in China:Technological Science,2012,42(1):103-114.(in Chinese)
[19]	ZHANG Xufang,HE Wei,ZHANG Yimin,et al.An effective approach for lifetime probabilistic modelling based on the principle of maximum entropy with fractional moments［J］.Applied Mathematical Modelling,2017,51:626 -642.