Aerodynamic shape optimization by continually moving ROM

Li, Li Zhou; Li, Jin Jiu; Zhang, Jun; Lu, Kuan; Yuan, Mei

doi:10.1016/j.ast.2020.105729

Cited by 10 publications

(1 citation statement)

References 47 publications

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“…System identification [14] and Proper Orthogonal Decomposition (POD) [15] are the two most commonly used ROMs in CFD-based aeroelastic analysis. The CFD-based ROMs have been also exercised for transonic [16] and hypersonic [17] aeroelastic analysis, limit-cycle oscillation (LCO) [18], gust response analysis [19], aerodynamic shape optimisation [20,21], and blade aerodynamic force [22,23]. In particular, the last decade has witnessed various studies on the developments of the CFD-based ROMs for active flutter suppression.…”

Section: Introductionmentioning

confidence: 99%

An efficient reduced-order framework for active/passive hybrid flutter suppression

Wang

Ronch

et al. 2022

Aeronaut. j.

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Flutter suppression is an important measure to improve fatigue life and enhance the performance of aircraft in modern aircraft design. In order to design more effective controllers for flutter suppression with high efficiency, an efficient reduced-order framework for active/passive hybrid flutter suppression is proposed. The traditional CFD-based ROMs have been successfully applied to active flutter suppression with high accuracy and efficiency. But, when a structure modification is made such as in aeroelastic tailoring and aeroelastic structural optimisation, the structural model should be updated, and the expensive, time-consuming CFD-based ROMs have to be reconstructed; such a process is impractical for passive flutter suppression. To overcome the realistic challenge, an efficient reduced-order framework for active/passive hybrid flutter suppression is proposed by extending an efficient aeroelastic CFD-based POD/ROM which we have developed. The proposed framework is demonstrated and evaluated using an improved AGARD 445.6 wing model. The results show that the proposed framework can accurately predict the aeroelastic response for active/passive hybrid flutter suppression with high efficiency. It provides a powerful tool for active/passive hybrid flutter suppression, and therefore, is ideally suited to design more effective controllers, and may have the potential to reduce the overall cost of aircraft design.

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