CRACK INITIATION OF ROTOR BLADES IN THE FIRST STAGE OF SO-3 COMPRESSOR
The failure of rotor blades in the first stage of a SO-3 engine was observed during an experiment in a test rig. The rotating mode shapes of flexible blade and bladed disc assemblies were calculated. A Campbell diagram was presented to find the areas where resonances may have occurred. Numerical calculations were used to locate the crack initiations. When blocks were placed in the stator blades (to simulate the effect of birds getting into the engine), it took approximately 143 minutes of operating time for an initial crack of 3 mm to appear on the pressure side.
crack initiation rotor blades
R.Szczepanik R.Rzakowski L.Kwapisz
Air Force Institute of Technology, Warszawa 01-494, Ksieia Boleslawa 46, Poland Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Gdansk 80-952, Fiszera 14
国际会议
The Fifth International Conference on VETOMAC-V(第五届振动工程及机械技术国际会议)
武汉
英文
89-94
2009-08-27（万方平台首次上网日期，不代表论文的发表时间）