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US 2012/0070270 A1Published application
Damped assembly
AssigneeROLLS-ROYCE plc
InventorsEric P. RAVEY, Matthew D. CURREN
Life of this patent
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Abstract
A damped assembly 10 within a gas turbine, comprising a first member 12 and a second member 14 mechanically connected via an intermediate vibration dampener 18 which has at least first 20 and second 22 surfaces for contacting the first 12 and second members 14 respectively, wherein either or both of the first 20 and second 22 surfaces include a plurality of raised portions 28 in direct contact with the respective member and a plurality of recessed portions 30 which contain adhesive for bonding the intermediate vibration dampener 18 to the respective member.
Claims12
A damped assembly for a gas turbine engine, comprising:
- a first member and a second member mechanically connected via an intermediate vibration dampener which has at least first and second surfaces for contacting the first and second members respectively,
- wherein either or both of the first and second surfaces include a plurality of raised portions in direct contact with the respective member and a plurality of recessed portions which contain adhesive for bonding the intermediate vibration dampener to the respective member
- wherein the ratio of the raised portion surface area to the recessed portion surface area for each of the first and second surfaces is predetermined so as to provide a required dampening for a predetermined frequency range.
Dependencies are inferred from the claim text.