| 双面理想非完整约束系统的机械能守恒律 |
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| 引用本文： | 李广成. 双面理想非完整约束系统的机械能守恒律[J]. 商丘师范学院学报, 2003, 19(2): 7-10 |
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| 作者姓名： | 李广成 |
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| 作者单位： | 商丘师范学院,物理系,河南,商丘,476000 |
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| 基金项目： | 国家自然科学基金资助项目(19972010) |
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| 摘 要： | 研究双面理想非完整约束系统在约束不是定常且主动力不是有势时的机械能守恒律．建立系统的能量变化方程，给出存在机械能守恒律的充分必要条件．分析有机械能守恒律的12种情况，最后给出说明性算例．
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| 关 键 词： | 双面理想非完整约束系统 机械能守恒律 能量变化方程 分析力学 |
| 文章编号： | 1672-3600(2003)02-0007-04 |
Conservation of mechanical energy of systems with ideal bilateral nonholonomic constraints |
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| LI Guang-cheng. Conservation of mechanical energy of systems with ideal bilateral nonholonomic constraints[J]. Journal of Shangqiu Teachers College, 2003, 19(2): 7-10 |
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| Authors: | LI Guang-cheng |
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| Abstract: | Conservation of mechanical energy of systems with ideal bilateral nonholonomic constraints is studied when the constraints of systems are unstable and the active forces are nonpotential The equations of energy variation for the systems with ideal bilateral holonomic constraints are established. The sufficient and necessary condition of existence of the conservation of mechanical energy is given. The 12 cases possessing the conservation of mechanical energy are analyzed. |
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| Keywords: | ideal bilateral constraint holonomic constraint equation of energy variation conservation of mechanical energy |
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