Abstract
This article deals with different methods for modeling the free-flying flexible aircraft and compares the obtained models for aircraft response simulations. A direct time domain approach which is composed of a free flying finite element structure coupled to an unsteady potential flow method was implemented. This method is used to investigate the impact of fixed-axis and mean-axis boundary conditions. Furthermore the impact of quasi-steady and unsteady aerodynamic modeling to the aircraft response is investigated. A modal truncation method is introduced which is based on the significance of modes in characteristic loadcases. Moreover a fast time capable reduced order model is generated from the original model allowing fast time simulations with similar accuracy.
| Original language | English |
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| State | Published - 2015 |
| Event | 16th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2015 - Saint Petersburg, Russian Federation Duration: 28 Jun 2015 → 2 Jul 2015 |
Conference
| Conference | 16th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2015 |
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| Country/Territory | Russian Federation |
| City | Saint Petersburg |
| Period | 28/06/15 → 2/07/15 |
Keywords
- Fixed-axis
- Flexible aircraft dynamics
- Flight simulation
- GAF
- Mean-axis
- UVLM