摘要
几何法求解含摩擦的平衡问题,关键在于正确作出摩擦角,根据约束力的方向作出自锁域。三力平衡必汇交,交点H0若在边界上,就可顺利断定极、值性质,是极大还是极小,无须求解不等式。
Solving the balanced question including the friction by geometric method , the key is to make the correct friction angle, and make self-locklng domain acccording to direction of binding force, Because of the theorem of three concurrent forces balance,if the intersection point is on the boundary, it is determined the properties of extreme value, maximum and minimum , and not need to solve the inequality.
出处
《现代机械》
2008年第4期57-58,共2页
Modern Machinery
关键词
摩擦角
自锁域
平衡
最值
friction angle
self-locking domain
balance
extreme value
