دانلود مقاله ISI انگلیسی شماره 145334
ترجمه فارسی عنوان مقاله

بهینه سازی طراحی پانلهای سفت شده با استفاده از روش نیروی مجتمع با محدودیت

عنوان انگلیسی
Design optimization of stiffened panels using finite element integrated force method
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
145334 2018 11 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Engineering Structures, Volume 159, 15 March 2018, Pages 99-109

ترجمه کلمات کلیدی
پانل سفت و محکم روش نیروی تجزیه و تحلیل عنصر محدود، تجزیه و تحلیل ثبات،
کلمات کلیدی انگلیسی
Stiffened panel; Force method; Finite element analysis; Stability analysis;
پیش نمایش مقاله
پیش نمایش مقاله  بهینه سازی طراحی پانلهای سفت شده با استفاده از روش نیروی مجتمع با محدودیت

چکیده انگلیسی

The objective of the present paper is to develop an efficient and accurate design optimization procedure to minimize the mass of the stiffened panels subjected to uniform compression loading, while guarding against the buckling failure. A Finite Element (FE) model based on the Integrated Force Method (IFM) is developed to perform the buckling analysis of stiffened panels. It has been shown that the finite element analysis based on the force methodology is able to predict the critical buckling load accurately and efficiently. The Sequential Quadratic Programming (SQP) is then applied to the established IFM model to minimize the mass of stiffened panels while guarding against buckling failure. An efficient analytical formulation to perform the sensitivity analysis is formulated using the developed finite element force method, and then utilized in the SQP formulation as the gradient information. Illustrated examples have been presented to verify the validities of the proposed methodologies. It has been shown that comparing to the numerical sensitivity analysis, the design optimization using the developed analytical sensitivity formulation is very efficient and accurate.