An Analytical Investigation of Damping of Landing Gear Shimmy Aircraft Braking Systems Corporation

Format:

Conference/Event

Author/Creator:

Feld, Denis J., author.

Conference Name:

Aerospace Technology Conference & Exposition (1990-10-01 : Long Beach, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1990

Summary:

Dual-wheeled main landing gears may encounter shimmy vibration under adverse conditions. An analytical investigation is made of energy dissipation from Coulomb friction in oleo main bearings and pressure seal and the contribution to shimmy damping. It is stabilizing but highly variable. Under favorable conditions it exceeds 10 % of critical viscous damping which would rapidly suppress vibration. Under severe conditions, it may be less than 1 %. This may not overcome destabilizing tire dynamics and shimmy incidents are more likely to occur. Strut closure rate and transient disturbances contribute to the loss of damping

Notes:

Vendor supplied data

Publisher Number:

902015

Access Restriction:

Restricted for use by site license