柔杆大变形平衡方程与边界条件的变分推导

摘要

利用变分原理,不仅给出了柔杆在大变形时的平衡方程,同时也给出相应的边界条件, 弥补了文献［2］和文献［3］在这方面的缺陷.%By the variational principle, this paper derivesthe equilibrium equation and the boundary condition of thelarge-deflection flexible bar, which improves the results inreferences ［2］ and ［3］.