전역 최적화 알고리즘을 이용한 파이버 레이저 용접 열원 모델 구현에 관한 연구 Part II : 최적화 알고리즘의 비교
A Study for Heat Source Model for Fiber Laser Welding with Global Optimization AlgorithmPart II. Comparison of Optimization Algorithms
In this study, a welding heat source model was presented and verified during fiber laser welding. The multi-layered heat source model is a model that can cover most of existing studies and can be defined with a simple formula. It consists of a total of 12 parameters, and an optimization algorithm was used to find them. As optimization algorithms, adaptive simulated annealing, multi island genetic algorithm, and Hooke-Jeeves technique were applied for comparative analysis. The parameters were found by comparing the temperature distribution when the STS304L was bead on plate welding and the temperature distribution derived through finite element analysis, and all three models were able to derive a model with similar trends. However, there was a deviation between parameters, which was attributed to the many variables. It is expected that a more clear welding heat source model can be derived in subsequent studies by giving a guide to the relational expression and range between variables and increasing the temperature measurement point, which is the target value.
목차
ABSTRACT 1. 서론 2. 용접 실험 2.1 실험 장비 및 실험 조건 2.2 용접 시편 및 후처리 2.3 용접 용융부 분석 3. 유한요소해석 및 용접 열원 모델 3.1 소프트웨어 3.2 기계 재료 물성 3.3 유한요소 해석 모델의 구성 3.4 레이저 용접 열원 모델 3.5 용접 열원 모델 파라미터 도출 방법 4. 최적화 알고리즘 4.1 Adaptive simulated annealing(ASA) 4.2 Multi island genetic algorithm 4.3 Hooke-Jeeves technique 5. 결과 및 논의 6. 결론 후기 References
키워드
다층 열원파이버 레이저 용접적응 시뮬레이티드 어닐링멀티 아일랜드 유전 알고리즘Multi layered heat sourceFiber laser weldingAdaptive simulated annealingMulti-island genetic algorithm
저자
표창민 [ Chang-Min Pyo | Korea Institute of Industrial Technology, Researcher ]
Corresponding Author