Abstract
When taking off or landing, pilots sometimes experience oscillations in the cockpit. It is known that the nose landing gear - which is situated right under the cockpit - is prone to self-excited vibrations at certain velocities. Therefore, an explanation for the cockpit vibrations can be the dynamic interaction between the nose landing gear and the aircraft body. This interaction, however, can be bi-directional, that is, the fuselage dynamics may also influence the dynamics of the landing gear. In order to study this coupling and clarify the mutual interaction, a mathematical model is developed. By means of nonlinear techniques it is revealed that the interaction may be significant in both directions, and that the system behaviour depends strongly on the modal characteristics of the fuselage. Considering system parameters providing significant interaction, the model is used to study the feasibility of a real-time dynamic substructuring test.
Original language | English |
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Title of host publication | IFASD 2013 - International Forum on Aeroelasticity and Structural Dynamics |
Publisher | Royal Aeronautical Society |
Publication status | Published - 2013 |
Event | International Forum on Aeroelasticity and Structural Dynamics, IFASD 2013 - Bristol, United Kingdom Duration: 24 Jun 2013 → 27 Jun 2013 |
Conference
Conference | International Forum on Aeroelasticity and Structural Dynamics, IFASD 2013 |
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Country/Territory | United Kingdom |
City | Bristol |
Period | 24/06/13 → 27/06/13 |
Research Groups and Themes
- Engineering Mathematics Research Group
Keywords
- Actuator lag
- Dynamic substructuring
- Nonlinear analysis
- Nose landing gear