Title :
Mould amendment arithmetic study based on closed-loop control system
Author :
Liu, Wenjuan ; Liang, Zhiyong
Author_Institution :
Dept. of Comput. Sci., Zhaoqing Univ., Zhaoqing, China
Abstract :
In this paper, a new model for mould amendment based on the closed-loop control system is presented. Combined with the thinking of time-frequency transform, the model is aimed to solve the problem of shape transfer function of closed-loop control system by using the error function of mould amendment scattering closed-loop control system. The mould surface shape corresponding to the ideal product shape is predicted under same technical conditions based on shape transfer function, so as to achieve an algorithm of springback error correction. Finally, a multi-curvature stamping experiment is given to verify the effectiveness of springback compensation algorithm.
Keywords :
Fourier transforms; closed loop systems; error compensation; error correction; metal stamping; metallurgical industries; moulding; time-frequency analysis; transfer functions; Fourier transform; closed-loop control system; error function; mould amendment scattering arithmetic model; multicurvature metal stamping; shape transfer function; springback error compensation algorithm; springback error correction algorithm; time-frequency transform; Arithmetic; Control system synthesis; Control systems; Error correction; Fourier transforms; Frequency; Numerical simulation; Shape control; Testing; Transfer functions; Closed-loop control system; Fourier transform; Multi-curvature; Springback;
Conference_Titel :
Control and Decision Conference, 2009. CCDC '09. Chinese
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-2722-2
Electronic_ISBN :
978-1-4244-2723-9
DOI :
10.1109/CCDC.2009.5192640
