摘要
通常虚功原理的充分性中所要求的初始条件(V_i=0)对伽利略变换不具有不变性。这使得虚功原理对伽利略变换也不具有不变性。这是很不自然的。本文从经典力学应满足相对性原理的要求这一基本点出发,把定常系统的虚功原理推广到非定常系统,并使得这一原理对伽利略变换具有不变性。
Initial conditions, Ui =0, reguired to the ordinary principle of virtual work are not Galileo-invariant, So that the principle virtual work is not Galileo-invariant either. This is very unnatual. This paper started from a base that classical mechanics should satisfy reguirement of the relativity principle, to generalize scleronomic system into rheonomic, So that the principle is Galileo-invariant.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
1990年第1期31-35,共5页
Journal of Hefei University of Technology：Natural Science
关键词
非定常系统
虚功原理
相对性原理
relativity principle, rhonomic system, equilibrium state, uniformly moving constraints.
