THE EFFECT OF CHANGE IN THE NUMBER OF STATOR BLADES IN THE STAGE ON UNSTEADY ROTOR BLADE FORCES
Analysed here was a 100-MW steam turbine in which the unsteady forces acting on the extraction stage rotor blades were found to be large. This was in particular valid for the circumferential components unsteady forces. Results of calculations performed for the same boundary conditions but with different numbers of stator blades in the system are presented. Increasing the number of stator blades considerably affects the level of unsteady forces acting on a single blade. These changes refer to both the stationary components of these forces and their first high-frequency harmonic, which decreases when the number of stator blades is increased.
unsteady forces rotor blade stator blade
Romuald Rzadkowski Marek Soliński
Institute of Fluid-Flow Machinery Polish Academy of Sciences
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
27-32
2009-08-27（万方平台首次上网日期，不代表论文的发表时间）