کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
510397 | 865764 | 2007 | 13 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Frequency- and time-domain methods for the numerical modeling of full-bridge aeroelasticity Frequency- and time-domain methods for the numerical modeling of full-bridge aeroelasticity](/preview/png/510397.png)
A numerical framework for full-bridge aeroelasticity is presented, based on unsteady cross-sectional load models and on the finite-element modeling of the structure. A frequency-domain approach based on aeroelastic derivatives and nonlinear complex eigenvalue analysis is compared to its equivalent time-domain counterpart based on indicial functions and direct integration of the equations of motion. A version of the time-domain load model consistent with the quasi-steady limit behavior is developed and a procedure for the numerical identification of the indicial functions from measured aeroelastic derivatives is presented. The aeroelastic stability analysis is chosen as benchmark. A numerical example is offered where the equivalency of the two approaches is proved for a full-bridge model. Advantages and disadvantages of the two techniques are discussed.
Journal: Computers & Structures - Volume 85, Issues 11–14, June–July 2007, Pages 675–687