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| Impact of bolt-hole clearance on modal frequency of single lapped and single bolted joint plate |
| LIN Wei-yan, LIU Wen-guang, YAN Long, SHU Bin |
| School of Aeronautic Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China |
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Abstract It is inevitable that there is clearance between the bolt and the hole of bolted joint plate on account of the need of assemble and manufacture errors.And the changes of clearance have some influence on the modal frequencies of the bolted joint plate.The influence mechanisms of bolt-hole clearance on the modal frequencies of a single lapped and single bolted joint plate system were investigated,and subsequently a dynamical design method for bolted joint plate system by changing the diameter of through-hole was proposed.Firstly,the finite element modeling method was proposed by using ABAQUS package and Python language.Thereafter,a dynamic finite ele-ment model of the bolted joint plate system with variable diameter of through-hole was set up. Then the relation of the bolt-hole clearance and the modal frequencies of bolted joint plate was analyzed in two kinds of boundary conditions,including one end fixed and both ends fixed.Under a typical vibrating frequency band,the dynamic design method of the bolted joint plate system by changing the diameter of through-hole was discussed in the end.Results indicated that when the diameter of the through-hole was 1.02-1.20 times of the bolt diameter,the influences of bolt-hole clearance on the modal frequencies of bolted joint plate could be negligible.However,when the diameter of through-hole was larger than 1.21 times of bolt diameter,the effects of bolt-hole clearance on the vibration modal frequencies were obvious and the modal frequencies were mutation.The research shows that the modal frequency of system can be changed by changing the bolt-hole clearance in the specific incentive environment,so as to avoid the structure resonance. The proposed method provides some reference for analyzing the influence of bolt-hole clearance on natural frequency of complex bolted joint system,and also provides an idea of anti-vibration fatigue design method for the bolted joint system.
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Received: 08 December 2016
Published: 28 August 2017
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螺栓与孔间隙对单搭单螺栓连接板模态频率的影响
由于装配需要或者制造误差等因素的影响，连接板的螺栓与螺栓孔之间不可避免地存在间隙，而且间隙的变化对连接板的模态频率有一定的影响。通过研究螺栓与孔间隙对单搭单螺栓连接板模态频率的影响机制，讨论一种基于变通孔直径的螺栓连接动力学设计方法。首先，基于ABAQUS软件和Python语言，建立了包含变通孔直径的单搭单螺栓连接板有限元计算模型；然后，探讨了螺栓连接板在一端固支、两端固支两种边界条件下螺栓与孔间隙变化对连接板模态频率的影响机制；最后，提出了一种基于变通孔直径的螺栓连接板动力学设计方法。结果表明：当通孔直径为螺栓直径的1.02~1.20倍时，通孔直径的变化对螺栓连接板各阶固有频率的影响可忽略；通孔直径大于螺栓直径的1.21倍时，其变化对连接板模态频率有明显的影响，且影响程度各异。研究表明在特定激励环境下可通过改变通孔直径来改变系统模态频率，从而避免结构共振。该方法为螺栓与孔间隙对复杂螺栓连接系统固有频率的影响分析提供了参考，也为螺栓连接系统的抗振疲劳设计问题提供了思路。
关键词：
螺栓与孔间隙,
单搭单螺栓连接板,
模态频率
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|
| [[1]] |
KAPIDZIC Z,ANSELL H,SCHON J,et al.Fatigue bearing failure of CFRP composite in bolted joints ex -posed to biaxial variable amplitude loading at elevated temperature[J].Composite Structures,2016,142(8):71-77.
|
|
|
| [[2]] |
KAPIDZIC Z,ANSELL H,SCHON J,et al.Fatigue bearing failure of CFRP composite in biaxially loaded bolted joints at elevated temperature[J].Composite Structures,2015,127(9):298-307.
|
|
|
| [[3]] |
ZHOU Y,NEZHAD H Y,HOU C,et al.A three di-mensional implicit finite element damage model and its application to single-lap multi-bolt composite joints with variable clearance[J].Composite Structures,2015,131(13):1060-1072.
|
|
|
| [[4]] |
CHISHTI M,WANG C H,THOMOSON R S,et al. Experimental investigation of damage progression and strength of countersunk composite joints[J].Composite Structures,2012,94(3):865-873.
|
|
|
| [[5]] |
MCCARTHY M A,MCCARTHY C T,LAWLOR V P,et al.Three-dimensional finite element analysis of single-bolt,single-lap composite bolted joints:part I-model development and validation[J].Composite Struc-tures,2005,71(2):140-158.
|
|
|
| [[6]] |
刘文光,陈国平,贺红林,等.结构振动疲劳研究综述[J].工程设计学报,2012,19(1):1-8. LIU Wen-guang,CHEN Guo-ping,HE Hong-lin,et al. Review of studying on vibration fatigue[J].Chinese Journal of Engineering Design,2012,19(1):1-8.
|
|
|
| [[7]] |
刘文光,林炜彦,颜龙,等.基于抗振动疲劳的薄板加筋设计分析[J].工程设计学报,2016,23(4):385-390. LIU Wen-guang,LIN Wei-yan,YAN Long,et al.A-nalysis on stiffen design of a skin plate by anti vibration fatigue[J].Chinese Journal of Engineering Design, 2016,23(4):385-390.
|
|
|
| [[8]] |
易济南.螺栓连接件抗振性设计及制造[J].机械工程与自动化,2011,165(2):166-167. YI Ji-nan.Anti-vibration design of bolted joint[J].Mechanical Engineering & Automation,2011,165(2):166-167.
|
|
|
| [[9]] |
胡迎春,刘庚武.螺栓组件抗拉疲劳及防松性能分析[J]. 机械制造与自动化,2007,36(3):34-35. HU Ying-chun,LIU Geng-wu.Analyze about the per-formance of tension fatigue and anti-loosen for bolt groupware[J].Machine Building & Automation,2007, 36(3):34-35.
|
|
|
| [[10]] |
万存才.G2500-2分动器螺栓振动测试与分析[D].大连:大连理工大学动力工程系,2003:1-46. WAN Cun-cai.Vibration test and analysis of G2500-2 transfer case bolt[D].Dalian:Dalian University of Technology,Department of Power Engineering,2003:1-46
|
|
|
| [[11]] |
王崴,徐浩,马跃,等.振动工况下螺栓连接自松弛机理研究[J].振动与冲击,2014,33(22):198-202. WANG Wei,XU Hao,MA Yue,et al.Self-loosening mechanism of bolted joints under vibration[J].Journal of Vibration and Shock,2014,33(22):198-202.
|
|
|
| [[12]] |
张振,肖毅,刘彦清,等.基于振动疲劳试验的复合材料螺栓连接预紧力松弛特性[J].复合材料学报,2016,33(1):163-173. ZHANG Zhen,XIAO Yi,LIU Yan-Qin,et al.Preload relaxation characteristics in composite bolted joints based on vibration fatigue test[J].Acta Material Com-posite Serial,2016,33(1):163-173.
|
|
|
| [[13]] |
钟同圣,卫丰,王鸷,等.Python语言和ABAQUS前处理二次开发[J].郑州大学学报(理学版),2006,38(1):60-64. ZHONG Tong-sheng,WEI Feng,WANG Zhi,et al. Second development for fore treatment of ABAQUS u-sing Python language[J].Journal of Zhengzhou Uni-versity (Natural Science Edition),2006,38(1):60-64.
|
|
|
| [[14]] |
张强,马永,李四超. 基于Python的ABAQUS二次开发方法与应用[J].舰船电子工程,2011,31(2):131-134. ZHANG Qiang,MA Yong,LI Si-chao.Method and application of second-developed ABAQUS based on Py-thon[J].Ship Electronic Engineering,2011,31(2):131-134.
|
|
|
| [[15]] |
谈梅兰,武国玉,梁福祥.基于ABAQUS的连杆疲劳分析[J].中国机械工程,2013,24(5):634-637. TAN Mei-lan, WU Guo-Yu, LIANG Fu-xiang. Fatigue analysis of connecting rods based on ABAQUS[J].China Mechanical Engineering, 2013, 24(5):634-637.
|
|
|
| [[16]] |
石亦平.ABAQUS有限元分析实例详解[M].北京:机械工业出版社,2012:1-393. SHI Yi-ping.Detailed explanation of finite element a-nalysis of ABAQUS[M].Beijing:China Machine Press,2012:1-393.
|
|
|
| [[17]] |
曹金凤. Python语言在ABAQUS中的应用[M].北京:机械工业出版社,2011:1-356. CAO Jin-feng.The application of python language in ABAQUS[M].Beijing:China Machine Press,2011:1-356.
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