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A new method for simultaneous optimum design of structural and control systems

Title
A new method for simultaneous optimum design of structural and control systems
Author
박경진
Keywords
Equivalent static loads; Co-design; Dynamic response structural optimization; Optimal control; EQUIVALENT STATIC LOADS; VIBRATION CONTROL; OPTIMIZATION
Issue Date
2015-11
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
COMPUTERS & STRUCTURES, v. 160, Page. 90-99
Abstract
An optimization method is proposed for the simultaneous design of structural and control systems using the equivalent static loads. The two structural and control systems are not completely independent and hence must be considered in a unified fashion. Furthermore, the integrated system should be designed to exhibit a good performance in the time domain. The analysis of the integrated system should be conducted for the transient-state in a dynamic manner. The constraints for structural and control systems are defined in the time domain as well. Therefore, a small scale structural analysis problem may easily become a large scale optimization problem. A new equivalent static loads (ESLs) method, which deals with the structural design variables as well as the control design variables, is proposed to solve large scale problems. A finite element dynamic equation is defined with control forces and a dynamic response optimization problem is formulated. Linear static response optimization is carried out with the ESLs. The control forces for the linear static response optimization are considered as design variables. Shape variables are utilized to handle the design variables for the control forces. Several test problems are solved to validate the proposed method. (C) 2015 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0045794915002333http://hdl.handle.net/20.500.11754/40951
ISSN
0045-7949; 1879-2243
DOI
10.1016/j.compstruc.2015.08.006
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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