Structural and aeroelastic analyses of a wing with tip rotor
| Autor: | Meijuan Zhao, Xiayang Zhang, Ming Zhu, Haoquan Liang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Coupling
Rotor (electric) business.industry Mechanical Engineering Thrust 02 engineering and technology Aerodynamics Structural engineering Aeroelasticity 01 natural sciences 010305 fluids & plasmas law.invention Matrix (mathematics) 020303 mechanical engineering & transports 0203 mechanical engineering law 0103 physical sciences Flutter business Mathematics Parametric statistics |
| Zdroj: | Journal of Fluids and Structures. 86:44-69 |
| ISSN: | 0889-9746 |
| DOI: | 10.1016/j.jfluidstructs.2019.01.014 |
| Popis: | Based on parametric studies, this paper studies the structural and aerodynamic properties of a typical wing-rotor system by considering additional coupling effects from the tip rotor. The governing equations are established by virtue of Yamanaka’s theory and Hamilton’s principle in an Euler–Bernoulli precision. In the derivation process, complex mode theory and the Rayleigh–Ritz approach are employed to obtain the analytical solution and the numerical solution, respectively, and a set of trial functions are generated for the sake of reliability. Two aeroelastic models are generated via steady and unsteady aerodynamic models to investigate the divergence and flutter performance, respectively, where the computational p-k method is adopted because of the gyros matrix. In case studies, the effectiveness of the numerical solution is validated through comparative analysis; thereafter, the aeroelastic solutions are further verified. The results demonstrate that the gyro effect and the thrust effect have significant influences on the fundamental structural and aeroelastic performances, and parametric designs have great potential to postpone aeroelastic instabilities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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