Construction of sliding constraint surfaces based on QP model in multi-step inverse analysis
In this paper,the sliding constraint surfaces are automatically generated by a Pseudo-Minimum Area method (PMA),and the Initial Guess is generated on the constructed sliding constraint surface based on the One-step inverse approach.In the PMA method,the three-dimensional construction problem of sliding constraint surfaces was converted into a Quadratic Programming (QP) problem from the perspective of optimization.Since the high-efficiency solving of QP problems,the sliding constraint surfaces can be generated efficiently.Constructed sliding constraint surfaces and Initial guesses are applied to the multi-step drawing process.The numerical analysis result is compared with One-step inverse analysis and DYNAFORM to evaluate the effectiveness of the multi-step inverse analysis.
Sheet Metal Forming Multi-step inverse One-step inverse Intermediate Configuration
Weijie Liu Ping Hu Ping Zhou Xiangkui Zhang
School of Automotive Engineering,Dalian University of Technology,Dalian,China College of Automotive Engineering,Jilin University,Changchun,China
国际会议
沈阳
英文
388-393
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）