Research on Calibration Method of Structure Parameters of Parallel Mechanism Based on MATLAB

Abstract:

The PM is the closed mechanical structure and its two platforms is connected by multiple branched. The PM is different from the serial mechanism and has many structure parameters. And the structure parameters will greatly influence the mechanism output precision. After the PM assembly is completed, the structure parameters are difficult to measure by the measuring tools. This paper presents a calibration method of structure parameters. Firstly, the destination is to ensure the structure parameters in the range of certain error through the manufacturing, assembly and the auxiliary tool detection. Secondly, the optimization mathematical model of structure parameters for PM is established by using the optimum performance of the MATLAB software, which makes the continuous learning through the sample data for PM. After continuous optimization, ideal approximate solution of the structure parameters is found in meeting the precision error range. By MATLAB simulation, the method is feasible.

• Periodical: Key Engineering Materials (Volume 621)
• Pages: 268-273
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.621.268
• Online since: August 2014
• Authors: Yong Geng Wei, Zhong Xian Wang*, Rui Wang, Yu Chao Fan
• Keywords: Calibration Method, MATLAB, Parallel Mechanism (PM), Structure Parameters

References

[1] D.M. Maric, P.F. Meier and S.K. Estreicher: Mater. Sci. Forum Vol. 83-87 (1992), p.119.

[2] M.A. Green: High Efficiency Silicon Solar Cells (Trans Tech Publications, Switzerland 1987).

[3] P. Huang, L.P. Wang and R. Yao: Kinematic Performance and Accuracy Analysis of New Type 3-DOF Parallel Mechanism [J]. Journal of Mechanical Engineering. 2010, 46(15): 1-7.

DOI: 10.3901/jme.2010.15.001

[4] Y. Zhang and Z.J. Zhang: The Research of Space Dynamic Precision Measure and Compensation for 3-RS Parallel Mechanism [J]. Design and Research, 2012. 6: 94-96.

[5] S. Chen and S.W. Fan: Study on Approach to Enhance Precision Fault Tolerance Ability for Spherical Parallel Mechanisms Based on Over-constrained Redundancy Actuation [J]. China Mechanical Engineering. 2012, 23 (16): 1985-(1990).

[6] X.Y. Li, W.Y. Chen and X.G. Han: Accuracy Analysis and Synthesis of 3-RPS Parallel Machine Based on Orthogonal Design [J]. Journal of Beijing University of Aeronautics and Astronautics. 2011, 37 (8): 979-984.

[7] J.L. Gao, K.M. Li and L.L. Le: Accuracy Analysis of Three Translational Parallel Manipulator [J]. Machine Tool and Hydraulics. 2012, 40(13): 55-58.

[8] W.M. Zhao and Q. Shi: Singularity and Precision Analysis of 3-DOF Parallel Manipulator [J]. Agricultural Equipment and Technology. 2009, 35 (5): 51-53.

[9] D.W. Liu, L.P. Wang and L.W. Guan: Accuracy Analysis and Calibration of a Special 3-DOF Parallel Mechanism [J]. Journal of Mechanical Engineering G. 2010, 46(9): 46-51.

DOI: 10.3901/jme.2010.09.046

[10] H. Liang, S. Huang and L. Guo: Effect of Redundant Constraints on Accuracy of Parallel Mechanism [J]. Journal of QingDao University. 2012, 27(2): 90-94.