- 专利标题: Gas turbine engine airfoil frequency design
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申请号: US15871347申请日: 2018-01-15
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公开(公告)号: US10788049B1公开(公告)日: 2020-09-29
- 发明人: William R. Edwards , Stephen W. Milks , Steven J. Feigleson , Mark A. Stephens , Joseph C. Straccia
- 申请人: UNITED TECHNOLOGIES CORPORATION
- 申请人地址: US CT Farmington
- 专利权人: Raytheon Technologies Corporation
- 当前专利权人: Raytheon Technologies Corporation
- 当前专利权人地址: US CT Farmington
- 代理机构: Carlson, Gaskey & Olds, P.C.
- 主分类号: F02K3/06
- IPC分类号: F02K3/06 ; F04D29/54 ; F04D29/02 ; F04D29/66
摘要:
A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 2.59-2.89 inch (65.7-73.3 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 1.46-1.76 inch (37.1-44.7 mm). The airfoil element includes at least two of a first mode with a frequency of 703±10% Hz, a second mode with a frequency of 3574±10% Hz, a third mode with a frequency of 8100±10% Hz, a fourth mode with a frequency of 9450±10% Hz, a fifth mode with a frequency of 11116±10% Hz and a sixth mode with a frequency of 11620±10% Hz.
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