%0 Journal Article
%T Symmetry and conserved quantity of Lagrangians for nonholonomic variable mass system<br>变质量非完整系统的Lagrange对称性与守恒量
%A Zhang Bin
%A Fang Jian-Hui
%A Zhang Ke-Jun
%A <br>张斌
%A 方建会
%A 张克军
%J 物理学报
%D 2012
%I 
%X In this paper are study the symmetry of Lagrangians and the conserved quantities for a nonholonomic variable mass system. Firstly, the criterion of the symmetry of Lagrangians for a nonholonomic variable mass system is given. Secondly, the conditions under which there exist a conserved quantity and the form of the conserved quantity, are obtained. Finally, an example is given to illustrate the application of the results.
%K variable mass
%K nonholonomic system
%K symmetry of Lagrangians
%K conserved quantity<br>变质量
%K 非完整系统
%K Lagrange对称性
%K 守恒量
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=4C92C33EB4B06FC5384A450B74494D5B&yid=99E9153A83D4CB11&vid=1D0FA33DA02ABACD&iid=0B39A22176CE99FB&sid=0735BB433330AFF4&eid=0735BB433330AFF4&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=16