关于两点约束自锁条件的分析

Analysis of the self locking condition of two point constraint

分别用几何法和解析法得出了两点约束自锁条件的完整答案,指出了目前理论力学教材中关于此类问题的解答是不完整的。

The complement solution of the selflocking condition of twopoint constraint is obtained by graphical method and analytical method. The results show that the solution about this problem is uncomplement in the present theoretical mechanics textbooks.