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cjcwx(金币+40, 翻译EPI+1):非常感谢! 2010-04-06 17:12
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The integral methods of whole conservative mechanical system has been quite consummate, which include reduction method of Lagrange Equation, Poisson method of Hamilton Equation, Hamilton-Jacobi method, canonical transformation and integral invariants and so on. Integral problem will become very complicated when non-conservative force occurs in the mechanical system or the system adds incomplete constraints solution. Generally, we should get down to them in two strands when studying integral problems of incomplete mechanical system. On the one hand, attention should be paid to what degree the existing integral methods can be popularized and then be applied. At this time, integral methods will be extremely strictly limited as a result of the existence of incomplete constraints solution. On the other hand, new integral methods such as reaction field method and symmetry method must be opened up . Reaction field method not only can be applied in the integration of whole non-conservative system, but also in incomplete system. |
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