45 0

비례하중변환법의 등가정하중을 이용한 비선형 거동을 하는 구조물의 최적설계

Title
비례하중변환법의 등가정하중을 이용한 비선형 거동을 하는 구조물의 최적설계
Other Titles
Structural Optimization for Non - Linear Behavior Using Equivalent Static Loads by Proportional Transformation of Loads
Author
박경진
Issue Date
2006-01
Publisher
대한기계학회
Citation
대한기계학회논문집 A, v. 30, No. 1, Page. 66 - 75
Abstract
Nonlinear response structural optimization using equivalent static loads (NROESL) has been proposed. Nonlinear response optimization is solved by sequential linear response optimization with equivalent static loads which are generated from the nonlinear responses and linear stiffness matrix. The linear stiffness matrix should be obtained in NROESL, and this process can be fairly difficult for some applications. Proportional transformation of loads (PTL) is proposed to overcome the difficulties. Equivalent static loads are obtained by PTL. It is the same as NROESL except for the process of calculating equivalent static loads. PTL is developed for large-scale probems. First, linear and nonlinear responses are evaluated from linear and nonlinear analyses, respectively. At a DOF of the finite element method, the ratio of the two responses is calculated and an equivalent static load is made by multiplying the ratio and the loads for linear analysis. Therefore, the mumber of the equivalent static loads is as many as that of DOF's and an equivalent static load is used with the reponse for the corresponding DOF in the optimization process. All the equivalent static loads are used as multiple loading conditions during linear response optimization. The process iterates until it converges. Examples are solved by using the proposed method and the results are compared with conventional methods.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00665754&language=ko_KRhttps://repository.hanyang.ac.kr/handle/20.500.11754/107616
ISSN
1226-4873
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE