中国物理B ›› 2002, Vol. 11 ›› Issue (12): 1228-1233.doi: 10.1088/1009-1963/11/12/302

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A connection theory for a nonlinear differential constrained system

许志新1, 郭永新2, 吴炜2   

  1. (1)Department No. 1, East China Shipbuilding Institute, Zhenjiang 212003, China; (2)Department of Physics, Liaoning University, Shenyang 110036, China
  • 收稿日期:2002-05-14 修回日期:2002-08-16 出版日期:2002-12-12 发布日期:2005-06-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10175032), the Natural Science Foundation of Liaoning Province, China (Grant Nos 002083 and 2001101024), and the Science Research Foundation of Liaoning Education Bureau, China (Grant Nos 990111004 and 20021004).

A connection theory for a nonlinear differential constrained system

Xu Zhi-Xin (许志新)a, Guo Yong-Xin (郭永新)b, Wu Wei (吴炜)b   

  1. a Department No. 1, East China Shipbuilding Institute, Zhenjiang 212003, China; b Department of Physics, Liaoning University, Shenyang 110036, China
  • Received:2002-05-14 Revised:2002-08-16 Online:2002-12-12 Published:2005-06-12
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10175032), the Natural Science Foundation of Liaoning Province, China (Grant Nos 002083 and 2001101024), and the Science Research Foundation of Liaoning Education Bureau, China (Grant Nos 990111004 and 20021004).

摘要: An Ehresmann connection on a constrained state bundle defined by nonlinear differential constraints is constructed for nonlinear nonholonomic systems. A set of differential constraints is integrable if and only if the curvature of the Ehresmann connection vanishes. Based on a geometric interpretation of d-δ commutation relations in constrained dynamics given in this paper, the complete integrability conditions for the differential constraints are proven to be equivalent to the three requirements upon the conditional variation in mechanics: (1) the variations belong to the constrained manifold; (2) the time derivative commutes with variational operator; (3) the variations satisfy the Chetaev's conditions.

Abstract: An Ehresmann connection on a constrained state bundle defined by nonlinear differential constraints is constructed for nonlinear nonholonomic systems. A set of differential constraints is integrable if and only if the curvature of the Ehresmann connection vanishes. Based on a geometric interpretation of $d-\delta$ commutation relations in constrained dynamics given in this paper, the complete integrability conditions for the differential constraints are proven to be equivalent to the three requirements upon the conditional variation in mechanics: (1) the variations belong to the constrained manifold; (2) the time derivative commutes with variational operator; (3) the variations satisfy the Chetaev's conditions.

Key words: constraint, Ehresmann connection, integrability condition, $d-\delta$ commutation relation

中图分类号:  (Ordinary differential equations)

  • 02.30.Hq
02.40.-k (Geometry, differential geometry, and topology) 02.30.Cj (Measure and integration)