Liu Yi, Xie Changchuan

DOI Number: N/A

Conference number: IFASD-2019-100

This paper presents a procedure for the simulation of dynamic aeroelastic responses at varying flight conditions. These predictions were done in real-time using aeroelastic reduced-order models (ROMs). Aeroelastic ROMs were generated over a course flight envelope of varying Mach number (M=0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1) and angle of attack (α=0, 5, 10, 15). The NASA FUN3D computational fluid dynamics solver was used to generate high fidelity training and verification data. The Python toolbox SIPPY was used for state-space system identification. Once ROMs at several angles of attack and Mach numbers were generated, a ROM interpolation scheme was used to simulate the aerodynamic response at an arbitrary flight condition. The ROM responses agree very well with CFD verification data. The computed flutter buckets at non-zero angle of attack for Euler and RANS solutions were compared.

Read the full paper here

In Categories: IFASD 2019, Modeling for Design of Highly Flexible Aircraft
Email
Print
LinkedIn
The paper above was part of  proceedings of a CEAS event and as such the author has signed a publication agreement to have their paper published in the repository. In the case this paper is found somewhere else CEAS always links to the other source.  CEAS takes great care in making the correct content available to the reader. If any mistakes are found  in the listings please contact us directly at papers@aerospacerepository.org and we will correct the listing promptly.  CEAS cannot be held liable either for mistakes in editorial or technical aspects, nor for omissions, nor for the correctness of the content. In particular, CEAS does not guarantee completeness or correctness of information contained in external websites which can be accessed via links from CEAS’s websites. Despite accurate research on the content of such linked external websites, CEAS cannot be held liable for their content. Only the content providers of such external sites are liable for their content. Should you notice any mistake in technical or editorial aspects of the CEAS site, please do not hesitate to inform us.