Paper Title:
A Variable Parameters Cross-Coupled Control Based on Differential Evolution Optimization in Crankpin Non-Circular Grinding
  Abstract

The tracking lag error of a single axis in non-circular grinding is hard to be reduced due to the big inertia of grinding carriage and the large acceleration of crankshaft. Thus, it’s unsatisfied to improve the contour precision of crankpin just by enhancing the tracking precision of a single axis. To obtain a more accurate contour, the cross-coupled control system is designed based on the approximation that the coupled motion between the rotation axis of crankshaft and the linear axis of grinding carriage is simplified as the coupled motion between two linear axes. And then the control strategy that the parameters of cross-coupled control system are variable along the motion path of crankpin non-circular grinding is proposed to make up for it deficiency in the control of nonlinear path. To minimizing the contour error, differential evolution algorithm is also introduced to optimize the control parameters segment by segment. The simulation results demonstrate the theory contour precision of crankpin non-circular grinding is advanced obviously by the cross-coupled control with variable parameters in comparison with the common cross-coupled control.

  Info
Periodical
Edited by
Ran Chen
Pages
3148-3153
DOI
10.4028/www.scientific.net/AMM.44-47.3148
Citation
J. Li, Y. Y. He, N. Y. Shen, M. L. Fang, "A Variable Parameters Cross-Coupled Control Based on Differential Evolution Optimization in Crankpin Non-Circular Grinding", Applied Mechanics and Materials, Vols. 44-47, pp. 3148-3153, 2011
Online since
December 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xin Cheng Tian, Xiao Hong Deng
Abstract:Most of the commenly adotped interpolation algorithems are for the curve machining on CNC machine tools with Cartesian coordinates...
2007
Authors: Wei Luo, Yin Biao Guo, Wei Yang, Rui Zhi Rao
Abstract:Having studied the synchronized multi-axis control servo system, some type automatic wire striping and terminal crimping system is developed...
3540
Authors: Li Jun Li, Y. Jiang, Fei Hu Zhang
Abstract:The manufacturing system developed in this paper is mainly used for the ultra-precision grinding of the hard-cutting materials, such as high...
500
Authors: Bin Wu Wang, Yan Hua Sun, Wen Zhang
Chapter 2: Manufacturing Technology
Abstract:Based on electromechanical system dynamics model of 3-axis NC positioned, together with the general nonlinear decoupling control theory, the...
1363
Authors: Wei Wu, Toshiki Hirogaki, Eiichi Aoyama
Abstract:Recently, new needs have emerged to control not only linear motion but also rotational motion in high-accuracy manufacturing fields. Many...
234