鸡蛋在水滴上的直立及水中的稳定平衡

发布时间：2018-05-25 13:21

  本文选题：稳定平衡 + 表面张力　； 参考：《力学与实践》2017年05期

【摘要】：蛋壳没有显著的接触变形,水洗干燥之后难以在坚硬光洁的平面上直立;但依赖两三颗细小盐粒或者水膜的辅助支承即可实现大端直立.蛋在液体中姿态与浮力有关,可在水中以小端直立.与刚体、浮体相同,潜体在重力、浮力和支承力作用下处于稳定平衡时势能达到极小值.
[Abstract]:The eggshell has no obvious contact deformation, it is difficult to stand upright on the hard and clean plane after washing and drying, but it can be achieved by two or three small salt particles or the auxiliary support of water film. The attitude of eggs in liquids is related to buoyancy and can be held upright at small ends in water. As with rigid body and floating body, the potential of submersible body in stable equilibrium under the action of gravity, buoyancy and supporting force can reach a minimum.
【作者单位】： 河南理工大学能源科学与工程学院;
【分类号】：O317
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本文编号：1933265