Efficient Optimum Design of Steructures With Reqency Response Consteraint Using High Quality Approximation
عنوان مقاله: Efficient Optimum Design of Steructures With Reqency Response Consteraint Using High Quality Approximation
شناسه ملی مقاله: JR_IJE-10-2_001
منتشر شده در در سال 1376
شناسه ملی مقاله: JR_IJE-10-2_001
منتشر شده در در سال 1376
مشخصات نویسندگان مقاله:
Eysa Salajegheh - Civil Engineering, Shahid Bahonar University of Kerman
خلاصه مقاله:
Eysa Salajegheh - Civil Engineering, Shahid Bahonar University of Kerman
An efficient technique is presented for optimum design of structures with both natural frequency and complex frequency response constraints. The main ideals to reduce the number of dynamic analysis by introducing high quality approximation. Eigenvalues are approximated using the Rayleigh quotient. Eigenvectors are also approximated for the evaluation of eigenvalues and frequency responses. A two point approximation is used to approximate the functions under consideration. After the substitution of the approximate functions into the original optimization problem, the dynamic analysis of the structure is not necessary in the specified move limits. The sensitivities of the eigenvalues and eigenvectors are calculated analytically. In the problems under consideration repeated eigenvalues occur. Thus the sensitivities are evaluated for repeated eigenvalues.
کلمات کلیدی: Frequency Response Constraints, Optimum Design, Two Point Approximation
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1415229/