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.
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.
出处
《商丘师范学院学报》
CAS
2003年第2期7-10,共4页
Journal of Shangqiu Normal University
基金
国家自然科学基金资助项目(19972010)
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
ideal bilateral constraint
holonomic constraint
equation of energy variation
conservation of mechanical energy
