摘要
指出所选广义坐标使平衡点成为虚位移 ,进而成为广义力的奇点是导致“广义力”在平衡点上不为零的原因 ,而不是虚功原理本身的问题 .
The problem why the 'generalized force' equals nonzero on the equilibrium position is discussed. It is pointed out that because the equilibrium position of the mechanical system described by a set of given generalized coordinates is a singular point of virtual displacements.
出处
《大学物理》
北大核心
2002年第4期3-5,共3页
College Physics
