发明公开
- 专利标题： REDUCTION OF EQUALLY SPACED TURBINE NOZZLE VANE EXCITATION
- 专利标题（中）： 等距涡轮喷嘴叶片激励的减小
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申请号： EP13849387.9申请日： 2013-10-21
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公开(公告)号： EP2912278A1公开(公告)日： 2015-09-02
- 发明人: DUONG, Loc Quang , HU, Xiaolan , YANG, Gao , FALCONER, Steven R. , GORDON, Ralph E. , GARCIA, Jesus A. , SAPIRO, Dan G. , KAUL, Ulrike , JOHNSON, Gregory G. , FISHLER, Benjamin E.
- 申请人： United Technologies Corporation
- 申请人地址： One Financial Plaza Hartford, CT 06101 US
- 专利权人： United Technologies Corporation
- 当前专利权人： United Technologies Corporation
- 当前专利权人地址： One Financial Plaza Hartford, CT 06101 US
- 代理机构： Leckey, David Herbert
- 优先权： US201213658184 20121023
- 国际公布： WO2014066199 20140501
- 主分类号： F01D9/02
- IPC分类号： F01D9/02 ; F01D5/14 ; F02C7/00
摘要：
A reduction in excitation amplitudes affecting turbine blade durability in a turbine nozzle assembly having a plurality of vanes and turbine blades, includes: identifying a turbine blade design of the turbine nozzle assembly; performing a modal model analysis of at least one of the turbine blades in the turbine blade design; reducing aerodynamic impact by ensuring that each of the turbine blades is free of aero-excitation from an upstream flow at the vanes in an operating speed range; identifying blade natural frequencies with respect to the nozzle vanes; and modifying a trailing edge of at least one of the vanes to reduce the excitation amplitudes.
公开/授权文献
- EP2912278B2 REDUCTION OF EQUALLY SPACED TURBINE NOZZLE VANE EXCITATION 公开/授权日：2022-06-08
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