Invention Grant
- Patent Title: Gas turbine engine airfoil frequency design
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Application No.: US15869482Application Date: 2018-01-12
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Publication No.: US10697304B1Publication Date: 2020-06-30
- Inventor: Haiyun Li , Eliannah Hunderfund , Sean Nolan
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: Raytheon Technologies Corporation
- Current Assignee: Raytheon Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D5/16
- IPC: F01D5/16 ; F01D5/34 ; F01D5/14

Abstract:
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 1.03-1.13 inch (26.2-28.7 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 0.93-1.03 inch (23.6-26.2 mm). The airfoil element includes at least two of a first mode with a frequency of 2182±10% Hz, a second mode with a frequency of 4966±10% Hz, a third mode with a frequency of 9675±10% Hz, a fourth mode with a frequency of 13154±10% Hz and a fifth mode with a frequency of 14056±10% Hz.
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