کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7175828 | 1466571 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aeroelastic response and energy harvesting from a cantilevered piezoelectric laminated plate
ترجمه فارسی عنوان
واکنش آئروالاستیک و برداشت انرژی از یک صفحه لمینیت پیزوالکتریک لبه
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
A new nonlinear computational model and code for a piezoelectric-aeroelastic coupled system has been developed. A cantilevered piezoelectric laminated plate in yawed flow (βâ¤900) and inverted yawed flow (β>900) with a rotated vortex lattice aerodynamic model and new inextensible beam and plate theory is considered in this computational model. For the linear piezoelectric-aeroelastic model a critical flutter or a divergence phenomenon is found for yaw angles βâ¤900 or β>900 respectively. The divergence speed is independent of the piezoelectric force. Beyond the linear flutter speed, a limit cycle oscillation (LCO) was found for βâ¤900 and a large static deflection has been observed for β>900. The power extraction from the piezoelectric network depends on the LCO amplitude, the LCO mode shape and the resistive load, R, for βâ¤900. As flow velocity and resistive load increase, the power extraction increases. From a power efficiency analysis, the best power efficiency is found for a flag like plate when β=00. This is because this configuration provides the largest LCO amplitude and the best LCO mode shape with a larger bending curvature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Fluids and Structures - Volume 76, January 2018, Pages 14-36
Journal: Journal of Fluids and Structures - Volume 76, January 2018, Pages 14-36
نویسندگان
D.M. Tang, E.H. Dowell,