매 시간단계의 등가정하중을 다중하중조건으로 이용한 준정적 구조 최적화 방법
- Title
- 매 시간단계의 등가정하중을 다중하중조건으로 이용한 준정적 구조 최적화 방법
- Other Titles
- Quasi-Static Structural Optimization Technique Using Equivalent Static Loads Calculated at Every Time Step as a Multiple Loading Condition
- Author
- 박경진
- Keywords
- 동가정하중(Equivalent Static Load); 다중하중조건(Multiple Loading Condition); 설계주기(Design Cycle); 해석영역(Analysis Domain); 설계영역(Design Domain); 시간단계(Time Step)
- Issue Date
- 2000-10
- Publisher
- 대한기계학회
- Citation
- 대한기계학회논문집 A, v. 24, no. 10, page. 2568-2580
- Abstract
- This paper presents a quasi-static optimization technique for elastic structures under dynamic loads. An equivalent static load (ESL) set is defined as a static load set which generates the same displacement field as that from a dynamic load at a certain time. Multiple ESL sets calculated at every time step are employed to represent the various states of the structure under the dynamic load. They can cover every critical state that might happen at an arbitrary time. Continuous characteristics of dynamic load are simulated by multiple discontinuous ones of static loads. The calculated sets of ESLs are applied as a multiple loading condition in the optimization process. A design cycle is defined as a circulated process between an analysis domain and a design domain. Design cycles are repeated until a design converges. The analysis domain gives a loading condition necessary for the design domain. The design domain gives a new updated design to be verified by the analysis demain and a design domain. The design domain gives a new updated design to be verified by the analysis domain in the next design cycle. This iterative process is quite similar to that of the multidisciplinary optimization technique. Even though the global convergence cannot be guaranteed, the proposed technique makes it possible to optimize the structures under dynamic loads. It has also applicability, flexibility, and reliability.
- URI
- https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00341461https://repository.hanyang.ac.kr/handle/20.500.11754/162612
- ISSN
- 1226-4873; 2288-5226
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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