LEI Yuanhang,HE Yayin,CHEN Lijun,et al.Dynamic characterization of spatially deployable manipulator with rotating pair clearance[J].Journal of Mechanical Transmission,XXXX,XX(XX):1-10.
LEI Yuanhang,HE Yayin,CHEN Lijun,et al.Dynamic characterization of spatially deployable manipulator with rotating pair clearance[J].Journal of Mechanical Transmission,XXXX,XX(XX):1-10.DOI:
Dynamic characterization of spatially deployable manipulator with rotating pair clearance
In order to study the influence of the rotating pair clearance on the dynamic characteristics of the space deployable mechanism
a space shear-fork deployable manipulator was designed.
Methods
2
A mathematical model of the rotating pair clearance was established
and a dynamic simulation analysis of the space manipulator containing a rotating pair clearance was carried out based on the contact force model of the IMPACT function to analyze the effects of the gap size
the recovery coefficient
the position of the gap and the number of gaps on the dynamic characteristics of its unfolding process.
Results
2
The results show that the deployment process remains relatively stable when the joint clearance ranges from 0.02 mm to 0.04 mm and the restitution coefficient of the selected material is between 0.4 and 0.8. The rotational joint clearance exerts a more significant influence on the dynamic characteristics of the executive component at positions farther away from it. The increase in the number of clearances raises the vibration frequency of the manipulator during deployment
which deteriorates the stability of the deployment process. Therefore
the selection of appropriate structural parameters and materials is crucial. The research findings can provide a reference for the research and structural optimization of space deployable manipulators.
Wang Rugui , Jin Cong , Yang Zehui . Design and application of an elephant trunk-like spiral deployable mechanism [J]. Journal of Mechanical Transmission , 2023 , 47 ( 9 ): 74 - 80 .
Han Bo , Yang Ming , Luo Mingyan , et al . Design and analysis of single-drive space deployable metamorphic capture manipulator [J]. Journal of Mechanical Engineering , 2025 , 61 ( 1 ): 30 - 43 .
Jin Guoguang , He Sheng , Wei Zhan , et al . Dynamic analysis of planar flexible six-bar mechanism with multi-joint clearances [J]. Journal of Tiangong University , 2024 , 43 ( 4 ): 75 - 81 .
Bai Zhengfeng , Niu Yuxin , Cui Lewen , et al . Non-probabilistic reliability analysis of flexible manipulator with joint clearance and uncertain parameters [J]. Chinese Journal of Theoretical and Applied Mechanics , 2025 , 57 ( 1 ): 224 - 236 .
Qiu Xuesong , Ren Zhibo , Gui Peng , et al . Dynamic modeling and simulation of a flexible deployable solar array with multiple clearances [J]. Journal of Astronautics , 2018 , 39 ( 7 ): 724 - 731 .
李金玉 . 考虑混合间隙的机构动力学研究 [D]. 哈尔滨 : 哈尔滨工业大学 , 2017 .
Li Jinyu . Research on dynamic characteristics of mechanism with mixed joint clearances [D]. Harbin : Harbin Institute of Technology , 2017 .
Wang Tiecheng , Chen Guoping , Ma Fang , et al . Dynamic analysis of multibody systems with mixed clearance [J]. Journal of Vibration and Shock , 2016 , 35 ( 9 ): 178 - 183 .
Shi Bing , Jin Ye . Dynamic simulation and modeling of revolute clearance joint for virtual prototyping [J]. Journal of Mechanical Engineering , 2009 , 45 ( 4 ): 299 - 303 .
Miao H H , Li B , Liu J , et al . Effects of revolute clearance joint on the dynamic behavior of a planar space arm system [J]. Proceedings of the Institution of Mechanical Engineers,Part G:Journal of Aerospace Engineering , 2019 , 233 ( 5 ): 1629 - 1644 .
Marques F , Isaac F , Dourado N , et al . A study on the dynamics of spatial mechanisms with frictional spherical clearance joints [C]// Volume 6:12th International Conference on Multibody Systems,Nonlinear Dynamics,and Control . American Society of Mechanical Engineers , 2016 : V006T09A012 .
Wang Xupeng . Research on nonlinear contact forces and impact dynamics of mechanism with clearance joints [D]. Xi’an : Northwestern Polytechnical University , 2016 .
Li Yuanyuan . Dynamics analysis and reliability optimization design of multibody systems with multiple clearances [D]. Nanjing : Nanjing University of Aeronautics and Astronautics , 2017 : 12 - 38 .
Yan Shaoze , Chen Lumin , Ji Linhong , et al . Dynamic modeling of multibody system with clearance joints [J]. Journal of Vibration Engineering , 2003 , 16 ( 3 ): 290 - 294 .
Liang Hao . Dynamic characteristics analysis of crank-slider mechanism with clearance [D]. Chengdu : Southwest Jiaotong University , 2022 : 10 - 13 .
Megahed S M , Haroun A F . Analysis of the dynamic behavioral performance of mechanical systems with multi-clearance joints [J]. Journal of Computational and Nonlinear Dynamics , 2012 , 7 : 011002 .
Khemili I , Romdhane L . Dynamic analysis of a flexible slider-crank mechanism with clearance [J]. European Journal of Mechanics-A/Solids , 2008 , 27 ( 5 ): 882 - 898 .
Chen Y , Wu K , Wu X Z , et al . Kinematic accuracy and nonlinear dynamics of a flexible slider-crank mechanism with multiple clearance joints [J]. European Journal of Mechanics-A/Solids , 2021 , 88 : 104277 .