汽轮机调节级的气流激振力分析

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基金项目: 国家攀登计划项目(PD9521900);国家自然科学基金项目(19990510)

The Analysis for the Airflow Exciting-Vibration Force of Control Stage of Steam Turbine

Research Institute for Science and Technology, Shandong Institute of Technology, Zibo, Shandong 255012, P. R. China

摘要: 从流体动力学出发,应用动量定理研究汽轮机调节级叶片由于间隙引起的气流激振力问题,综合考虑了叶片及喷嘴的各项设计参数并应用理论分析的方法首次导出了汽轮机调节级叶片由于间隙引起的气流激振力的计算公式,并分析了调节级在各工况的激振力.
- 转子动力学 /
- 激振力 /
- 气流
Abstract: Based on the hydrodynamics, the airflow exciting-vibration force of control stage of steam turbine is studied by using the momentum theorem. A formulation for calculating the air exciting-vibration force of the control stage of steam turbine is deduced first by using theoretical analysis method and taking all the design factors of vane and nozzles into consideration. Moreover the exciting-vibration forces in different load cases are discussed respectively.
- rotor dynamics /
- exciting-vibration force /
- airflow

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