摘要
利用变分法和 Lagrange乘子法相结合 ,研究了塑性平面变形问题获得最佳单位上限解的分块模式对数螺线模式。
The paper deals with the divided mode when the unit upper limit solution to the plastic problem of plane deformation is optimum by mesns of the two methods of variation and lagrange's multiplier,the result shows the mode is the logarithmic spiral one.
出处
《金属成形工艺》
2001年第1期25-28,31,共5页
Metal Forming Technology
