In this paper, stability problem of beams supported on elastic foundation is discussed by means of Liapunov's direct method.
本文应用李亚普诺夫稳定性理论的直接方法，讨论了弹性支承上的压杆稳定问题。
2
Then we prove stability of this system in case of the normal operations by Liapunov's direct method, and apply the system to micro-injector actually for showing the effectiveness of the mechanism.
利用李雅谱诺夫直接方法分析了系统的稳定性，使系统应用的微喷射器表现了很好的机械性能。
3
Liapunov's Direct Method is used to solve the stability problem of the speed-type chattering occurring in machine tool during cutting.