一种全金属六自由度隔振平台的研究

doi:10.3901/JME.2023.01.188

摘要/Abstract

摘要： 某航空器的高精度测量器件对振动非常敏感，其隔振系统可在高真空、极端温度环境下实现多自由度的隔振。文中提出了一种全金属六自由度隔振平台，该平台利用一种筏式金属橡胶阻尼器作为Steward机构的滑动副，实现了全金属的六自由度隔振性能。研究者采用动态增量非线性分析系统计算了这种隔振系统的随机振动响应特性，仿真结果验证了其原理的正确性。研发了原型机并测试了其性能指标，测试结果表明：在40~2000 Hz的宽频域内，该原型机能够有效衰减X、Y、Z三轴向的随机振动能量，各轴向随机振动的总均方根加速度由2.2 g衰减到1 g以下，该原型机也可衰减三个轴向的角振动能量。研究成果可解决目前多自由度隔振系统对极端环境适应性差的技术难题，成果可直接应用于特殊环境下的隔振技术领域。

关键词: 隔振, 六自由度, 全金属, 随机振动

Abstract: A high-precision device in modern aviation is vibration sensitive, and its vibration isolation system has to realize multi-DOF vibration isolation in high vacuum and extreme temperature environments. Researchers propose an all-metal vibration isolation platform with six DOF in this paper. This platform uses a raft MRD as the parallel pair of the steward mechanism to realize the performance of six DOF vibration isolation in all metal. Researchers use the ADINA system to calculate the response characteristics of the vibration isolation system excited by random vibration, and the simulation results of the model prove the correctness of its principle. The researchers built a prototype and tested its performance. The test results show that the prototype can effectively attenuate the energy of random vibration in the three axes of X, Y, and Z when it is in the wide frequency range of 40-2000 Hz, and the total root-mean-square value of random vibration in each axis goes down from 2.2 g to less than 1 g. In addition, the prototype can also attenuate the energy of angular vibration in three axes. The research results can effectively solve the technical problem of poor adaptability of multi-DOF vibration isolation in extreme environments, and the results can be applied directly to vibration isolation technology in specific environments.

Key words: vibration isolation, six DOF, all metal, random vibration

中图分类号:

V241

杜永刚, 王雪松, 王禺林. 一种全金属六自由度隔振平台的研究[J]. 机械工程学报, 2023, 59(1): 188-198.

DU Yonggang, WANG Xuesong, WANG Yuling. Research on an All-metal Vibration Isolation Platform with Six DOFs[J]. Journal of Mechanical Engineering, 2023, 59(1): 188-198.

参考文献

[1] 申智春, 梁鲁, 郑钢铁, 等. 某型卫星有效载荷支架振动抑制[J]. 宇航学报, 2006, 27(3):503-506. SHEN Zhichun, LIANG Lu, ZHENG Gangtie, et al. Vibration suppression of a payload bracket in a satellite. Journal of Astronautics, 2006, 27(3):503-506.
[2] 李成麟, 雷旭亮, 陆煜明, 等. 光捷联惯导动态精度提升技术综述[J]. 导航与控制, 2021, 20(6):15-27. LI Chenglin, LEI Xuliang, LU Yuming, et al. Overview of dynamic accuracy improvement technology of laser strapdown inertial navigation[J]. Navigation and Control, 2021, 20(6):18-30.
[3] 段宇星, 李笑, 杨海, 等. 无人机捷联惯组隔振系统动力学分析与优化设计[J]. 中国惯性技术学报, 2020, 28(3):338-346. DUAN Yuxing, LI Xiao, YANG Hai, et al. Dynamical analysis and optimization of the damping system of strap-down inertial measurement unit used in UAV[J]. Journal of Chinese Inertial Technology, 2020, 28(3):338-346.
[4] 韦子祥, 邱中辉, 王旦, 等. 温度对橡胶隔振器刚度阻尼特性的影响[J]. 机械与电子, 2022, 40(2):23-28. WEI Zixiang, QIU Zhonghui, WANG Dan, et al. Effect of temperature on the stiffness damping characteristics of the rubber vibration isolator[J]. Machinery & Electronics, 2022, 40(2):23-28.
[5] 陈明伟, 高前, 李孔标, 等. 氟橡胶低温脆化性能研究[J]. 橡胶工业, 2019, 66(6):435-439. CHEN Mingwei, GAO Qian, LI Kongbiao, et al. Study on low temperature brittleness property of FKM[J]. China Rubber Industry, 2019, 66(6):435-439.
[6] TU Shaowu, LU Xiaofeng, ZHU Xiaolei. Effect of structure parameters on polycal wire rope isolator stiffness-damping characteristics[J]. Shock and Vibration, 2019, 2019:4525798. https://doi.org/10.1155/2019/4525798.
[7] CEN Bo, LU Xioafeng, ZHU Xiaolei. Research of numerical simulation method on vertical stiffness of polycal wire rope isolator[J]. Journal of Mechanical Science and Technology, 2018, 32:2451-2459.
[8] ZARZOUR M, VANCE J. Experimental evaluation of a metal mesh bearing damper[J]. Journal of Engineering for Gas Turbines & Power, 2000, 122(2):326-329.
[9] 段勇, 刘瑞杰, 马琳. 金属橡胶在鱼雷推进轴系振动控制中的应用[J]. 船舶力学, 2020, 24(9):1187-1195. DUAN Yong, LIU Ruijie, MA Lin. Application of metal rubber to the vibration control of torpedo propulsion shafting[J]. Journal of Ship Mechanics, 2020, 24(9):1187-1195.
[10] 李敏, 白鸿柏, 薛新. 波纹管金属橡胶包覆结构非线性阻尼特性研究[J]. 振动与冲击, 2020, 39(22):119-127. LI Min, BAI Hongbai, XUE Xin. Nonlinear damping characteristics of bellows structures cladded with metal rubber[J]. Journal of Vibration and Shock, 2020, 39(22):119-127.
[11] TURSUN M, ESKINAT E. Suppression of vibration using passive reacceptance method with constrained minimization[J]. Shock and Vibration, 2008, 15(6):639-654.
[12] 董万元, 王建强, 陈永辉, 等. 大功率涡桨发动机隔振系统设计与试验[J]. 振动、测试与诊断, 2022, 42(01):177-181. DONG Wanyuan, WANG Jianqiang, CHEN Yonghui, et al. Design and experimental study on vibration isolation system for high power turboprop engine[J]. Journal of Vibration, Measurement & Diagnosis, 2022, 42(01):177-181.
[13] 刘家燕, 程志峰, 王平. 机载光电吊舱橡胶减振器的设计与应用[J]. 中国机械工程, 2014, 25(10):1308-1312. LIU Jiayan, CHENG Zhifeng, WANG Ping. Design and application of rubber shock absorber in airborne photoelectric pod[J]. China Mechanical Engineering, 2014, 25(10):1308-1312.
[14] 罗敏, 杨文涛, 吴琼, 等. 高分多模卫星并联隔振装置设计与验证[J]. 航天器工程, 2021, 30(03):164-169. LUO Min, YANG Wentao, WU Qiong, et al. Design and verification of parallel micro-vibration isolation system for GFDM-1 satellite[J]. Spacecraft Engineering, 2021, 30(03):164-169.
[15] 张兰霜. 某型光电吊舱的隔振研究[D]. 哈尔滨:哈尔滨工业大学, 2021. ZHANG Lanshuang. Research on vibration isolation of a photoelectric pod[D]. Harbin:Harbin Institute of Technology, 2021.
[16] KONG Yongfang, HUANG Hai. Vibration isolation and dual-stage actuation pointing system for space precision payloads[J]. Acta Astronautica, 2018, 143(2):183-192.
[17] MC INROY J E.Modeling and design of flexure jointed steward platforms for control purposes[J]. IEEE/ASME Transactions on Mechatronics, 2002, 7(1):95-99.
[18] 王月. 空间运动可控多自由度隔振平台的动力学研究[D]. 哈尔滨:哈尔滨工业大学, 2010. WANG Yue. Dynamical research of space motive controlable multi-DOF vibration isolation platform[D]. Harbin:Harbin Institute of Technology, 2010.
[19] 刘磊, 王萍萍, 孔宪仁, 等. Stewart平台动力学建模及鲁棒主动隔振控制[J]. 宇航学报, 2011, 32(6):1231-1238. LIU Lei, WANG Pingping, KONG Xianren, et al. Dynamic modeling and robust active isolation control of steward platform[J]. Journal of Astronautics, 2011, 32(6):1231-1238.
[20] FU Hailong, HUA Zhengli, ZOU Longqing, et al. Combined stiffness characteristic of metal rubber material under vibration loads[J]. Journal of Mechanical Engineering Science, 2019, 233(17):6076-6088.
[21] 李宇燕, 黄协清. 金属橡胶材料的非线性刚度[J]. 兵工学报, 2008, 29(7):819-823. LI Yuyan, HUANG Xieqing. Nonlinear stiffness of metal rubber[J]. Acta Armamentarii, 2008, 29(7):819-823.
[22] 余慧杰, 张升. 双层金属橡胶隔振器的理论分析与隔振性能研究[J]. 噪声与振动控制, 2021, 41(5):247-250. YU Huijie, ZHANG Sheng. Theoretical analysis and vibration isolation performance study of double-layer metal rubber isolators[J]. Noise and Vibration Control, 2021, 41(5):247-250.
[23] REN Zhiying, SHEN Liangliang, HUANG Zhenwei, et al. Study on multi-point random contact characteristics of metal rubber spiral mesh structure[J]. IEEE Access, 2019, 7(12):694-710.
[24] MA Yanhong, ZHANG Qicheng, WANG Yongfeng, et al. Topology and mechanics of metal rubber via x-ray tomography[J]. Materials & Design, 2019, 181:108067. https://doi.org/10.1016/j.matdes.2019.108067.
[25] 田浩男, 单光坤, 闫明, 等. 不同结构参数的钢丝绳隔振器抗冲击性能研究[J]. 振动测试与诊断, 2022, 42(1):117-123. TIAN Haonan, SHAN Guangkun, YAN Ming, et al. Study on the shock resistance characteristics of wire rope isolator with different structure parameters[J]. Journal of Vibration, Measurement & Diagnosis, 2022, 42(1):117-123.
[26] 任志英, 方荣政, 陈小超, 等. 基于虚拟制备的金属橡胶各向异性本构特性研究[J]. 机械工程学报, 2021(24):211-222. REN Zhiying, FANG Rongzheng, CHEN Xiaochao, et al. Study on anisotropic constitutive properties of metal rubber based on virtual fabrication technology[J]. Journal of Mechanical Engineering, 2021(24):211-222.
[27] 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 a1.Researches on metal rubber mechanics properties in retrospect and prospect[J]. Journal of Aerospace Power, 2018, 33(6):1432-1445.