| 平面运动刚体相对速度瞬心的动量矩定理 |
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| 引用本文： | 尹莉.平面运动刚体相对速度瞬心的动量矩定理[J].中国石油大学学报(自然科学版),2001,25(4). |
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| 作者姓名： | 尹莉 |
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| 作者单位： | 石油大学储运与建筑工程学院 |
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| 摘 要： | 建立了刚体作平面运动时的相对速度瞬心动量矩定理 ,证明了在任一瞬时 ,当平面运动刚体的质心与速度瞬心的距离保持不变时 ,相对速度瞬心的动量矩定理的形式与相对固定点或质心的动量矩定理相同。用该定理可以简便地解决相同条件下的平面运动问题。
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| 关 键 词： | 刚体 平面运动 速度瞬心 质心 动量矩 |
DEVELOPMENT OF MOMENT OF MOMENTUM THEOREM TO INSTANTANEOUS CENTER OF VELOCITY FOR RIGID BODY'S PLANE MOTION |
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| YIN li.DEVELOPMENT OF MOMENT OF MOMENTUM THEOREM TO INSTANTANEOUS CENTER OF VELOCITY FOR RIGID BODY''''S PLANE MOTION[J].Journal of China University of Petroleum,2001,25(4). |
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| Authors: | YIN li |
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| Abstract: | A moment of momentum theorem to instantaneous center of velocity for a rigid body in plane motion is proposed. It is proved that the formula of moment of momentum theorem to an instantaneous center is same as that for a fixed point or moving the center of mass if the distance between the center of mass and the instantaneous center of velocity is constant. This moment is convenient to analyze some question in studying plane motion of a rigid body under the same conditions. |
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| Keywords: | rigid body plane motion instantantaneous center center of mass moment of momentum |
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