26 m射电望远镜副面调整机构误差分析

doi:10.7527/S1000-6893.2019.23271

Abstract

Abstract: The Nan Shan 26 m Radio Telescope (NSRT) in Urumqi, Xinjiang, uses the Stewart platform to adjust the position of subreflector in five degrees of freedom. In order to ensure the Stewart platform has high accuracy to meet the high-precision operation requirements of radio telescope, this paper analyzes the errors that affect the accuracy of the Stewart platform. Geometric error simulation results show that in order to achieve the required accuracy, the errors of the leg length and universal joint should be less than 0.08 mm and 0.04 mm. The comparative analysis of the measured data and the simulated data show that the homing error is the main cause of the error of the Stewart platform. Since the homing detection device of the Stewart platform is mainly composed of incremental encoder and limit switch, the abnormal feedback signal of the limit switch will cause the homing error of the Stewart platform. The paper concludes that this factor is the main reason for the working deviation of the Stewart platform for NSRT, which has guiding significance for the error compensation of the Stewart platform.

Key words: radio telescope, adjusting of subreflector, Stewart platform, error analysis, precision

CLC Number:

TH751

GULJAINA Kazezkhan, XIANG Binbin, WANG Na, AILI Yusup, CHEN Maozheng, LI Ning, XUE Fei. Errors analysis of a subreflector adjustment mechanism for NSRT[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(4): 423271-423271.

References 25

[1]	STEWART D. A platform with six degrees of freedom[J]. Proceedings of the Institution of Mechanical Engineers, 1965, 180(1):371-386.
[2]	MERLET J P. Jacobian, manipulability, condition number and accuracy of parallel robots[J]. Journal of Mechanical Design, 2006, 28(1):175-184.
[3]	MERLET J P. Parallel manipulators:State of the art and perspectives[J]. Advanced Robotics, 1993, 8(6):589-596.
[4]	HUNT K H. Structural kinematics of in parallel actuated robot arms[J]. ASME Journal of Mechanisms, Transmissions and Automation in Design, 1983, 105(4):705-712.
[5]	JAFARI F, MCINROY J E. Orthogonal Gough-Stewart platforms for micromanipulation[J]. IEEE Transactions on Robotics&Automation, 2003, 19(4):595-603.
[6]	WOOTTEN A, THOMPSON A R. The Atacama large millimeter/submillimeter array[J]. Proceedings of the IEEE, 2009, 97(8):1463-1471.
[7]	JEWELL P R. The green bank telescope[J]. Proceedings of the IEEE, 2009, 97(8):1382-1390.
[8]	WIELEBINSKI R. The Effelsberg 100 m radio telescope[J]. Naturwissenschaften, 1971, 58(3):109-116.
[9]	SU Y X, DUAN B Y, NAN R D, et al. Mechatronics design of stiffness enhancement of the feed supporting system for the square-kilometer array[J]. IEEE/ASME Transactions on Mechatronics, 2004, 8(4):425-430.
[10]	YANG D H, CHENG Y, WU C C, et al. A novel hexapod and its prototype for secondary mirror alignment in telescopes[J]. Research in Astronomy and Astrophysics, 2018, 18(9):115-124.
[11]	段艳宾,李建军,侯雨雷,等.射电望远镜天线副反射面并联调整机构设计[J].机械设计与制造, 2013(8):222-225. DUAN Y B, LI J J, HOU Y L, et al.Configuration design of the adjusting parallel mechanism for sub-reflector of antenna of radio telescope antenna[J].Machinery Design&Manufacture,2013(8):222-225(in Chinese).
[12]	MASORY O, WANG J, ZHUANG H. Kinematic modeling and calibration of a Stewart platform[J]. Advanced Robotics:the International Journal of the Robotics Society of Japan, 1997, 11(5):519-539.
[13]	PATEL A J, EHMANN K F. Volumetric error analysis of a Stewart platform based machine tool[J]. CIRP Annals-Manufacturing Technology, 1997, 46(1):287-290.
[14]	WANG S M, EHMANN K F. Error model and accuracy analysis of a six-DOF Stewart platform[J]. Journal of Manufacturing Science and Engineering, 2002, 124(2):286-295.
[15]	JELENKOVIC'L, BUDIN L. Error analysis of a Stewart platform based manipulators[J]. Journal of Sociology, 2002, 45(1):26-28.
[16]	TISCHLER C R, SAMUEL A E. Advances in robot kinematics:Analysis and control[M]. Dordrecht:Springer, 1998:227-236.
[17]	POTT A, HILLER M. A new approach to error analysis in parallel kinematic structures[C]//Proceedings of 4th Parallel Kinematics Seminar, 2004:123-136.
[18]	AHMAD A, ANDERSSON K, SELLGREN U, et al. A stiffness modeling methodology for simulation-driven design of haptic devices[J]. Engineering with Computers, 2014, 30(1):125-141.
[19]	ZHOU X, ZHOU F, WANG Y. Pose error modeling and analysis for 6-DOF Stewart platform[C]//2017 Chinese Automation Congress (CAC), 2017:6470-6475.
[20]	李健,李帅,张豪,等.仿咬合Stewart并联机器人模拟与误差分析[J].计算机仿真, 2018, 35(6):343-349. LI J, LI S, ZHANG H. Stewart parallel robot for simulated occlusal movement and error analysis[J]. Computer Simulation, 2018, 35(6):343-349(in Chinese).
[21]	姚蕊,李庆伟,孙京海,等. FAST望远镜馈源舱精度分析研究[J].机械工程学报, 2017, 53(17):50-56. YAO R, LI Q W, SUN J H, et al. Accuracy analysis on focus cabin of FAST[J]. Journal of Mechanical Engineering, 2017, 53(17):50-56(in Chinese).
[22]	李毅.高速并联机械手运动学标定方法研究[D].天津:天津大学, 2009. LI Y. Kinematic calibration method for high-speed parallel robot[D]. Tianjin:Tianjin University, 2009(in Chinese).
[23]	郭云鹏,陈柏,吴洪涛.一种六自由度海浪模拟并联平台的零点标定与性能评估[J].机电工程, 2015, 32(2):169-174. GUO Y P, CHEN B, WU H T. Zero calibration and performance assessment of a 6-DOF parallel platform used for wave simulation[J]. Mechanical&Electrical Engineering Magazine, 2015, 32(2):169-174(in Chinese).
[24]	孙月海,王兰,梅江平,等.基于单目视觉的Delta机器人零点标定方法[J].天津大学学报(自然科学与工程技术版), 2013, 46(3):239-243. SUN Y H, WANG L, MEI J P, et al. Zero calibration of delta robot based on monocular vision[J]. Journal of Tianjin University (Science and Technology), 2013, 46(3):239-243(in Chinese).
[25]	汪劲松,白杰文,高猛,等. Stewart平台铰链间隙的精度分析[J].清华大学学报(自然科学版), 2002, 42(6):758-761. WANG J S, BAI J W, GAO M, et al. Accuracy analysis of joint-clearances in a Stewart platform[J]. Journal of Tsinghua University (Science and Technology), 2002, 42(6):758-761(in Chinese).

Errors analysis of a subreflector adjustment mechanism for NSRT

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