Action of undetermined multiplier in holonomic and nonholonomic dynamical system 不定乘子在完整与非完整力学系统中的作用
On some flexibility of the method of undetermined Lagrange multiplier 论拉氏乘子法的几点灵活性
Based on two force equilibrium equations of a sliding mass, earth pressure is formulated in terms of calculus of variation, and is transcribed as the functional extreme-value of two undetermined function arguments by means of Lagrange's multiplier. 以滑动体静力平衡的两个力平衡方程为基础,引入拉氏乘子,将土压力问题以变分学观点来描述,转化为确定含有两个函数自变量的泛函极值问题。
Deriving Variational Principles in Elasto-dynamics by Undetermined Lagrange Multiplier Method 应用Lagrange乘子法推导弹性动力学的变分原理