非完整系统的共形不变性导致的新型守恒量
A new typ e of conserved quantity deduced from conformal invariance in nonholonomic mechanical system
-
摘要: 研究了非完整系统的共形不变性与新型守恒量。提出了该系统共形不变性的概念;得出了非完整系统的运动微分方程具有共形不变性并且是Lie对称性的充要条件。利用规范函数满足的新型结构方程,导出系统相应的新型守恒量。最后给出应用算例。Abstract: Conformal invariance and a new type of conserved quantity in nonholonomic mechanical system are studied. The definition and determining equation of conformal invariance for the nonholonomic mechanical system are provided;and the necessary and sufficient conditions that the conformal invariance for a nonholonomic mechanical system should be of Lie symmetry are deduced. With the aid of a new structure equation that the gauge function satisfies, the system’s corresponding new conserved quantity is obtained. Finally an example is given to illustrate the application of the results.
-
-
计量
- 文章访问数: 380
- HTML全文浏览数: 141
- PDF下载数: 0
- 施引文献: 0