REDUCTION OF THE END-EFFECTOR SENSITIVITY TO THE STRUCTURAL DEFLECTIONS OF A SINGLE FLEXIBLE LINK - THEORETICAL AND EXPERIMENTAL RESULTS

被引:11
作者
CHALHOUB, NG
ZHANG, XY
机构
[1] Department of Mechanical Engineering, Wayne State University, Detroit, MI
来源
JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME | 1993年 / 115卷 / 04期
关键词
D O I
10.1115/1.2899193
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The fine positioning problem of the gripper of flexible robotic manipulators is addressed in this study. A two-axis cartesian micro-manipulator is implemented to reduce the sensitivity of the gripper to the structural deformations of a single flexible link. A laser head with a dual axis photodetector are used to provide direct measurements of the transverse deflections at the free-end of the beam and to detect mechanical inaccuracies caused by manufacturing imperfections and assembly misalignment. The advantages of the integrated system of the micro-manipulator with a single compliant beam are demonstrated and compared to the one without the micro-manipulator for two different control schemes, ''rigid body controller (RBC)'' and ''rigid and flexible motion controller (RFMC).'' Both theoretical and experimental results have proven the capability of the micro-manipulator in significantly improving the gripper positional accuracy. Furthermore, it was demonstrated that the micro-manipulator tends to complement rather than overlap the efforts exerted by the host beam controller.
引用
收藏
页码:658 / 666
页数:9
相关论文
共 27 条
[11]  
FUKUDA T, 1984, 1984 IEEE INT C ROB, P540
[12]  
Gear C.W, 1971, NUMERICAL INITIAL VA
[13]  
Houpis, 1988, LINEAR CONTROL SYSTE
[14]  
IMAM I, 1975, ASME, V97, P609
[15]  
KAZEROONI H, 1988, IEEE J ROBOTICS AUTO, V4
[16]  
Koren Y., 1985, ROBOTICS ENG
[17]  
KUNTZE HB, 1984, 1984 P ACC, V2, P1217
[18]   THE DESIGN OF FLEXIBLE ROBOTIC MANIPULATORS WITH OPTIMAL ARM GEOMETRIES FABRICATED FROM COMPOSITE LAMINATES WITH OPTIMAL MATERIAL PROPERTIES [J].
LIAO, DX ;
SUNG, CK ;
THOMPSON, BS .
INTERNATIONAL JOURNAL OF ROBOTICS RESEARCH, 1987, 6 (03) :116-134
[19]  
Meirovitch L., 1967, ANAL METHODS VIBRATI
[20]   EXPERIMENTS IN LOAD-ADAPTIVE CONTROL OF A VERY FLEXIBLE ONE-LINK MANIPULATOR [J].
ROVNER, DM ;
FRANKLIN, GF .
AUTOMATICA, 1988, 24 (04) :541-548