Kinematic Analysis of a Planar Mechanism Driven by Two Orthogonal Layout Actuators

Abstract:

In this paper, a planar five-bar mechanism driven by two orthogonal layout actuators is proposed. The inverse and forward kinematics can be described in closed form. The Jacobi matrix, singularity and workspace of the mechanism are investigated. In addition, charts of some performance indices, such as dexterity, velocity, payload capability and stiffness index, are plotted. The results show that the mechanism has a flatter singularity-free workspace, which is usually our research object. On the other hand, Dexterity, Payload capability and stiffness index of the mechanism are basically the same distribution on the workspace, which are axis symmetric. But, the trend of velocity index is opposite. The proposed mechanism can be applied to the field of machine tools or used as the mobile base for a spatial manipulator. The results of the paper are very useful for the design and application of the new mechanism

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 2305-2309
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.2305
• Online since: March 2012
• Authors: Xiao Rong Zhu, Yi Lu, Hui Ping Shen
• Keywords: Kinematics, Orthogonal Layout Actuators, Performance Index, Planar Parallel Mechanism, Workspace

References

[1] Ceccarelli, M: Mechanism and Machine Theory. Vol. 32 (1997), P. 895–902.

[2] Gao,F., Liu,X. -J and Gruver,W. A: Mechanisms and Machine Theory. Vol. 33 (1998), P. 661–668.

[3] Liu,X. -J, Jin,Z. -L. and Gao, F: Mechanism and Machine Theory. Vol. 35(2000), P. 1257–1267.

[4] G. Ahci, B. Shirinzadeh: Robotica. Vol. 22(2004), P. 97–108.

[5] T.W. Lee, F. Freudenstein: Mechanism and Machine Theory. Vol. 13(1978), P. 235–244.

[6] ZHANG S.X., FAN S.C. and GAO F.Y.: Machine Design, 2003(1): 21~23, in Chinese.

[7] Li ketian, Chen xin and Peng Weidong, China Patent ZL200420093649. 4, 2005. 08.

[8] Gao Tiehong, Tao Mei, Sun Lixin: Mechanical Science and Technology, 2003, 22(1), in Chinese.

[9] X.J. Liu, Q.M. Wang and J.S. Wang: Intelligent and Robotic Systems. Vol. 41(2004),P. 205–224.

[10] Shen Huiping, Ding Lei, Deng Jiaming, China Patent CN200910181312. 6, (2009).

[11] Zhu X.R., Shen H.P., Liu Ch.F.: Machine Design and Research, 2010(5), in Chinese.

[12] Zhuangsheng Zhu, Runliang Dou: Mechatronics, Vol. 19(2009): P. 761–766.

[13] X.J. Liu, J.S. Wang and G. Pritschow: Mechanism and Machine Theory. Vol. 41(2006): P. 119–144.