동하중으로부터 변환된 등가정하중을 통한 구조물의 형상최적설계
- Title
- 동하중으로부터 변환된 등가정하중을 통한 구조물의 형상최적설계
- Other Titles
- Structural Shape Optimization under Static Loads Transformed from Dynamic Loads
- Author
- 박경진
- Keywords
- Dynamic Load(동하중); Static Load(정하중); Displacement(변위); Equivalent Force(등가 하중); Shape Optimization (형상최적설계)
- Issue Date
- 2003-04
- Publisher
- 대한기계학회
- Citation
- 대한기계학회 춘추학술대회, page. 1262-1269
- Abstract
- In structural optimization, static loads are generally utilized although real external forces are dynamic.
Dynamic loads have been considered in only small-scale problems. Recently, an algorithm for dynamic
response optimization using transformation of dynamic loads into equivalent static loads has been proposed.
The transformation is conducted to match the displacement fields from dynamic and static analyses. The
algorithm can be applied to large-scale problems. However, the application has been limited to size
optimization. The present study applies the algorithm to shape optimization. Because the number of
degrees of freedom of finite element models is usually very large in shape optimization, it is difficult to
conduct dynamic response optimization with the conventional methods that directly threat dynamic response
in the time domain. The optimization process is carried out via interfacing an optimization system and an
analysis system for structural dynamics. Various examples are solved to verify the algorithm. The results
are compared to the results from static loads. It is found that the algorithm using static loads transformed
from dynamic loads based on displacement is valid even for very large–scale problems such as shape
optimization.
- URI
- http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00547578?https://repository.hanyang.ac.kr/handle/20.500.11754/155515
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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