| 处理变质量问题常用方法讨论 |
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| 引用本文： | 杜秀国,刘久凯.处理变质量问题常用方法讨论[J].松辽学刊,2006,27(4):84-85. |
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| 作者姓名： | 杜秀国 刘久凯 |
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| 作者单位： | [1]空军航空大学飞行基础训练基地,吉林长春130024 [2]吉林农业工程职业技术学院,吉林四平136000 |
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| 摘 要： | 经典力学的变质量特指系统内各部分之间存在质量移动．处理此类问题的常用方法可归纳为三种：运用动量定理微分形式、变质量系统的动力学方程和质心运动定理求解．本文结合链条问题的三种求解方法对比，说明各自特点，并指出求解变质量问题时应注意的问题．
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| 关 键 词： | 变质量 质心 动量 |
| 文章编号： | 1000-1840（2006）04-0084-02 |
| 收稿时间： | 2006-07-10 |
| 修稿时间： | 2006年7月10日 |
A Discussion about the Common Methods to Solve the Problem of Variable Mass |
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| Du Xiu-guo,LIU Jiu-ka.A Discussion about the Common Methods to Solve the Problem of Variable Mass[J].Songliao Journal (Natural Science Edition),2006,27(4):84-85. |
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| Authors: | Du Xiu-guo LIU Jiu-ka |
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| Abstract: | The variable mass of classical mechanics designates that every parts in system exists mass movement. The common methods to deal with the problems of this kind can be reduced to three categories:viz.by means of differential calculus of momentum theorem,mechanics equation of variable mass system and theorem of barycentric movement.This paper combined with comparisons among three solving methods of chain problems, illustrates their individual characteristics,and points out attention-worthy problems when solving the problem of variable mass. |
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| Keywords: | center of mass collision resume coefficient moment |
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