Kinematics analysis of a 5-DOF anthropopathic arm based on Sarrus linkage

被引:1
作者
Liao, Bo [1 ]
Shang, Jianzhong [1 ]
Ernest, Appleton [2 ]
Yang, Zheng [1 ]
机构
[1] School of Mechatronics Engineering and Automation, National University of Defense Technology
[2] School of Engineering and Computer Science, Durham University
来源
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2013年 / 49卷 / 03期
关键词
Anthropopathic arm; Kinematics; Robot; Sarrus; Workspace;
D O I
10.3901/JME.2013.03.018
中图分类号
学科分类号
摘要
A novel robotic anthropopathic arm employing Sarrus linkage as its joints is proposed and a 5-DOF anthropopathic arm based on Sarrus linkage is designed according to the structure characteristics and deficiency of general robotic arms. In order to verify the advantages and lay a foundation for optimization of structure design, the forward kinematics characteristics are analyzed with homogeneous coordinates transformation method to obtain the workspace. The posture transformation matrix is derived. The trajectory of the centroid of wrist is plotted, and the results prove that the proposed robotic arm is possessed with common characteristics of general arms, and can extend its workspace. Besides, the robotic arm is highly flexible. The novel robotic anthropopathic arm with Sarrus linkage is able to overcome the limitations of links and expand the workspace, which is superior over other arms, to satisfy the needs of different working conditions. © 2013 Journal of Mechanical Engineering.
引用
收藏
页码:18 / 23
页数:5
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