An Chao, Xie Changchuan, Liu Yi, Yang Chao

DOI Number: N/A

Conference number: IFASD-2015-006

In this paper, a method is proposed for modelling large deflection of wing by developing efficient reduced order model (ROM). The method can be used to solve the static aeroelastic problems of wing containing geometric nonlinearities and static aeroelastic trim problems of flexible aircraft containing geometric nonlinearities. Traditional methods of aeroelastic analysis can’t reflect the nonlinear characteristics of structures, its result can’t satisfy the precision demand of engineering analysis. The approach for structure modelling presented here is based on a combined modal/finite element (MFE) approach that describes the stiffness nonlinearities. We apply that structure modelling method as ROM to aeroelastic analysis. The results show static aeroelastic analysis of wing and static aeroelastic trim analysis of aircraft based on structure ROM can achieve a good agreement compared to analysis based on the finite element method (FEM) and experiment result. The methods in this paper is suitable for the preliminary design and the static aeroelastic analysis of the flexible aircraft with large-aspect-ratio wing efficiently.

Read the full paper here

In Categories: 2. IFASD 2015, Reduced Order Modelling
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.