| 非定常系统的虚功原理 |
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| 引用本文： | 李泽华.非定常系统的虚功原理[J].合肥工业大学学报(自然科学版),1990(1). |
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| 作者姓名： | 李泽华 |
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| 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。
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| 关 键 词： | 相对性原理 非定常系统 平衡状态 匀动约束 |
THE PRINCIPLE OF VIRTUAL WORK OF RHEONOMIC SYSTEMS |
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| Li Zehua.THE PRINCIPLE OF VIRTUAL WORK OF RHEONOMIC SYSTEMS[J].Journal of Hefei University of Technology(Natural Science),1990(1). |
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| Authors: | Li Zehua |
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| Abstract: | 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. |
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| Keywords: | relativity principle rhonomic system equilibrium state uniformly moving constraints |
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