Raytheon Technologies Corporation

Raytheon Technology Corporation

Joseph Wieser

Xuedong Zhou

Joseph C Straccia

Konstantinos Panagiotis Giannakopoulos

John Joseph Papalia

Zhen Wu

Evan K Fink

Sue-Li Chuang

Christopher St Mary

Charles P Gendrich

Brian J Schuler

Kaliya Balamurugan

Kimberly Pash Boyington

Jeff M Carrico

Joseph Steele

Han J Yu

David Mikol

Danoris Garcia-Chabrier

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 0.46-0.59 inch (11.8-14.9 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 0.73-0.86 inch (18.6-21.9 mm). The airfoil element includes at least two of a first mode with a frequency of 5133&#xb1;15% Hz, a second mode with a frequency of 8542&#xb1;15% Hz, a third mode with a frequency of 15487&#xb1;15% Hz, a fourth mode with a frequency of 18774&#xb1;15% Hz, a fifth mode with a frequency of 24295&#xb1;15% Hz and a sixth mode with a frequency of 27084&#xb1;15% Hz.

Gas turbine engine airfoil frequency design

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 4.35-4.65 inch (110.5-118.1 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 2.45-2.75 inch (62.2-69.9 mm). The airfoil element includes at least two of a first mode with a frequency of 255&#xb1;10% Hz, a second mode with a frequency of 818&#xb1;10% Hz, a third mode with a frequency of 1439&#xb1;10% Hz, a fourth mode with a frequency of 2035&#xb1;10% Hz, a fifth mode with a frequency of 3033&#xb1;10% Hz and a sixth mode with a frequency of 3740&#xb1;10% Hz.

An airfoil 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 0.70-0.83 inch (17.8-21.1 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span is in a range of 0.34-0.45 inch (8.5-11.5 mm). The airfoil element includes at least three of a first mode with a frequency of 3748&#xb1;15% Hz, a second mode with a frequency of 6416&#xb1;15% Hz, a third mode with a frequency of 14418&#xb1;15% Hz, a fourth mode with a frequency of 17417&#xb1;15% Hz, a fifth mode with a frequency of 19326&#xb1;15% Hz and a sixth mode with a frequency of 26648&#xb1;15% Hz.

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 3.45-3.75 inch (87.6-95.3 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 1.55-1.85 inch (39.4-47.0 mm). The airfoil element includes at least two of a first mode with a frequency of 424&#xb1;10% Hz, a second mode with a frequency of 1401&#xb1;10% Hz, a third mode with a frequency of 1770&#xb1;10% Hz, a fourth mode with a frequency of 3336&#xb1;10% Hz, a fifth mode with a frequency of 3378&#xb1;10% Hz and a sixth mode with a frequency of 4141&#xb1;10% Hz.

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West Hartford, CT, United States of America

Joseph Wieser