분포하중을 받는 목재 적층복합재 빔의 볼트 체결 최적화 설계

• Published in: 한국생산제조학회지 Vol. 26; no. 3; pp. 292 - 298
• Main Author: 조희근(Hee Keun Cho)
• Format: Journal Article
• Language: Korean
• Published: 한국생산제조학회 2017
• Subjects: 기계공학; Design of experiment (DOE); Bolted connection; Response surface optimization; Finite element analysis; Orthotropic material
• ISSN: 2508-5093; 2508-5107
• DOI: 10.7735/ksmte.2017.26.3.292

Numerical analysis for various design parameters should be preceded by optimal design of composite materials. Numerous studies have been conducted on the bolting of interconnecting beams. In this study, the response surface method was applied to optimize the design of bolted joints connected by laminated wood composite beams. The response surface was created by combining the FEA code for composite analysis and the algorithm for forming the response surface. Optimization on this response surface was performed with a genetic algorithm to derive the results. The determination of the optimum bolt-hole position for the connection of composite beams is an optimization problem. Tsai-Wu composite failure index, maximum deflection, and simple von Mises stress are set as the objective functions. It has been proved that the design results of the optimized bolt-hole are superior to the design performance of the existing conventional bolt-hole position.