JEFFREY DAVID ELLIS
Pilots at 69 Ave, Snohomish, WA
License number
Washington A4397319
Issued Date
Mar 2017
Expiration Date
Mar 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
7520 69Th Ave SE, Snohomish, WA 98290
Professional information
Aeroelastic Tuned Mass Damper
US Patent:
2013009, Apr 18, 2013
Filed:
Oct 18, 2011
Appl. No.:
13/276120
Inventors:
Jack S. Hagelin - Woodinville WA, US
Sascha K. Ruegamer - Seattle WA, US
Tim D. Thornton - Bothell WA, US
Sean C. O'Meara - Seattle WA, US
Jeffrey R. Ellis - Snohomish WA, US
Sascha K. Ruegamer - Seattle WA, US
Tim D. Thornton - Bothell WA, US
Sean C. O'Meara - Seattle WA, US
Jeffrey R. Ellis - Snohomish WA, US
Assignee:
THE BOEING COMPANY - Chicago IL
International Classification:
F16F 7/104, F16F 7/112
US Classification:
188379
Abstract:
A method for damping aeroelastic modes, including limit cycle oscillations (LCO), is implemented by determining a mass for a tuned mass damper (TMD) based on an modal frequency for a mode having a potentially positive growth rate and attaching a TMD to at least one attachment point with significant motion such that a damping axis of the tuned mass damper is substantially oriented in a direction aligned with the local modal deflection.