加速度极小原理及其应用

MINIMUM PRINCIPLE OF ACCELERATION AND ITS APPLICATIONS

本文先从经典力学出发，论述了加速度极小原理，接着论述了变形体中的加速度极小原理的理论及应用，最后根据加速度极小原理的变分方程，推演了大挠度梁的动力方程以说明该原理的普遍性和优越性。文中还谈及塑性动力响应研究现状及今后发展的方向。

Based on classical mechanics,the minimum principle of acceleration is introduced at first in this paper. Then,the theory and applications of the minimum principle of acceleration about deformable body are discussed. Finally,from the variation equation of the minimum principle of acceleration,the equation of motion of the beam with large deflection is deduced. The generality and the merit of the minimum principle can be shown from the above illustration.Furthermore, the present situation and the developing direction of elastic-plastic dynamic response for structures are also concerned herein