The physical and mathematical model of airlift is given in this paper. The feasibility of the selfexcitedoscillation pulsed jet as breaker of the airlift is researched.
研究了气举的数学和物理模型，探讨了自激振荡脉冲射流作为气举装置破碎器的可行性。
2
Selfexcitedoscillation in turning process is a kind of unstable phenomenon resulting from former vibration trace. Eliminating of the phenomenon is a key technology in cutting process.
To explain the generative mechanism of low pressure and mass flow self-excitedoscillation pulsed jet, the nozzle optimized design range of structure and operation parameters was investigated.