Dynamic Force Response Analysis on Parallel Pre-stressed Six-axis Force Sensor
WANG Zhijun1, YAO Jiantao1,2, WANG Hang1, HOU Yulei1, ZHAO Yongsheng1
1. Yanshan University, Qinhuangdao 066004, China; 2. Jiangsu Key Lab of Digital Manufacturing Technology, Huaiyin Institute of Technology, Huai’an 223001, China
Abstract:A parallel pre-stressed six-axis force sensor with double-layer structure is proposed,and the structure character and advantages of the sensor are introduced.The dynamic force response of the six-axis force sensor is analyzed based on multi-degree-of-freedom system vibration mechanics.First,static force analysis on the sensor is performed considering the structure character.The vibration mechanics model of sensor system is built,and the motion differential equation of the vibration system is deduced.Then,the generalized coordinates response and the measuring limbs' force response are obtained by solving the motion differential equation when the system is subjected to dynamic force.Further,the numerical example and simulation result are presented,which demonstrate the correctness and feasibility of the theoretical analysis.
[1] 戈瑜,吴仲城,葛运建.面向应用需求的力/力矩传感器技术发展动向[J].机器人,2003,25(2):188-192.Ge Y,Wu Z C,Ge Y J.State of arts and development trends toward application-onented force/torque sensors[J].Robot,2003,25(2):188-192.
[2] Park Y K,Kumme R,Kang D I.Dynamic investigation of a binocular six-component force-moment sensor[J].Measurement Science and Technology,2002,13(8):1311-1318.
[3] Fujii Y.Toward dynamic force calibration[J].Measurement,2009,42(7):1039-1044.
[4] Xu K J,Li C,Zhu Z N.Dynamic modeling and compensation of robot six-axis wrist force/torque sensor[J].IEEE Transactions on Instrumentation and Measurement,2007,56(5):2094-2100.
[5] 徐科军,李成,朱志能,等.机器人腕力传感器动态响应的实时补偿[J].自动化学报,2001,27(5):705-709.Xu K J,Li C,Zhu Z N,et al.Real time compensation of dynamic response of robot wrist force sensor[J].Acta Automatica Sinica,2001,27(5):705-709.
[6] 姚裕,吴洪涛,张召明.基于Kane方法的Stewart传感器动力学及固有频率分析[J].动力学与控制学报,2004,2(2):84-87.Yao Y,Wu H T,Zhang Z M.The natural frequencies analysis for Stewart transducer rased on the Kane's method[J].Journal of Dynamics and Control,2004,2(2):84-87.
[7] 赵强,李洪人,韩俊伟.Stewart平台的振动研究[J].机械科学与技术,2004,23(5):594-597.Zhao Q,Li H R,Han J W.Study on vibration of Stewart platform[J].Mechanical Science and Technology,2004,23(5):594-597.
[8] 侯雨雷,曾达幸,姚建涛,等.超静定并联式六维力传感器动力学[J].光学精密工程,2009,17(7):1594-1601.Hou Y L,Zeng D X,Yao J T,et al.Dynamics of hyperstatic parallel six-component force sensor[J].Optics and Precision Engineering,2009,17(7):1594-1601.
[9] 赵永生,姚建涛,王航,等.整体预紧双层上下非对称七杆并联结构六维力传感器:中国,200810055347.0[P].2008-07-02.Zhao Y S,Yao J T,Wang H,et al.Afully pre-stressed and double-layer dissymmetrical seven-leg six-component force/torque sensor:CN 200810055347.0[P].2008-07-02.
[10] 黄真,赵永生,赵铁石.高等空间机构学[M].北京:高等教育出版社,2006.Huang Z,Zhao Y S,Zhao T S.Advanced spatial mechanism[M].Beijing:High Education Press,2006.
[11] 师汉民.机械振动系统--分析·测试·建模·对策[M].武汉:华中科技大学出版社,2004.Shi H M,Vibration systems-Analyzing,testing,modeling,controlling[M] ,Wuhan:Huazhong University of Science and Technology Press,2004.