关键词: 波动响应, 共振转速, 波动模态阻尼

Abstract: The results of an investigation of rotaing bladed-disk under stationary aerodynamic status are presented. A bladed-disk model is of continuous system. The traveling wave response of bladed-disk is obtained by using the elastic and wave theory. The response is a modal solution with wave modal damping, From modal solution, the formulation of resonant rotative speed can be obtained and some phenomena in test can be illustrated. Meanwhile, general resonant conditions are discussed in stationary and stall flows. The conclusion is that the travelling wave respose doesn't appear in uniform stationary flow.In stall flow, the travelling wave response is a random wave vibration, in this moment, the stationary wave resonance can not be produced.

Key words: wave response, resonant rotative speed, wave modal damping