分析平面图形上点的加速度的一种新方法  

A New Method to Analyse Accelerations of Points on Plane Figure

作　　者：沈桂荣[1] 

机构地区：[1]同济大学

出　　处：《上海力学》1990年第4期86-92,共7页Chinese Quarterly Mechanics

摘　　要：分析平面图形上点的加速度问题通常用基点法和瞬心法。本文从加速度投影方程出发,引入相似加速度的概念,使加速度投影方程变换为便于实际应用的相似加速度投影方程,从而使求解平面图形上点的加速度问题比常规的基点法和瞬心法更有方便之处。文中列举多种典型例题,以阐明该方法应用的普遍性。To analyse accelerations of points on plane figure generally the method of base point and the method of instantaneous acceleration center are used. In this paper, a new method is suggested such that in the equation of projection of acceleration the concept of similar acceleration is introduced to transform the equation of projection of acceleration into equation of projection of similar acceleration which is convenient for practical applications. This suggested method has the merit over the traditional method, the method of base point and the method of instantaneous aecelevation center, that it is more convenient. Several typical problems are solved by the use of this method to demonstrate its versatility and convenience over the traditional method.

关 键 词：平面图形 加速度 投影方程 

分 类 号：O313.1[理学—一般力学与力学基础]