Meta-heuristic algorithm을 적용한 휠체어 헤드레스트 최적 설계

다국어 초록 (Multilingual Abstract)

A rear-end collision with a wheelchair passenger in a WAV (Wheelchair Accessible Vehicle) may result in injuries to the neck and head of the wheelchair passenger inside the vehicle. To prevent this, it is necessary to install headrests for disabled passengers, and for this purpose, headrest location optimization was performed. In this study, the injury index for the dummy's head and neck was derived through sled test analysis in a low-speed rear collision situation, and WOA (Whale Optimization Algorithm), one of the Meta-huristic algorithms, was applied to obtain the optimal headrest location. Thus, optimization of the headrest location was performed. In addition, the optimal placement of foam characteristics to effectively achieve head deceleration in the event of a rear-end collision through a multi-layer headrest was conducted and was performed through GA (Genetic Algorithm).

목차 (Table of Contents)

• I. 서론
• 1.1 연구 배경 및 동향
• 1.2 연구 목적 및 내용
• II. WAV 후방추돌 해석과 상해평가기준
• 2.1 유한요소해석 모델과 후방추돌 조건
• 2.2 상해평가기준
• 2.2.1 NIC (Neck Injury Criteria)
• 2.2.2 Nkm (Neck Protection Criteria)
• 2.2.3 HIC (Head Injury Criteria)
• III. FAWOA를 통한 위치 최적화
• 3.1 Standard WOA의 개념과 수학적 모델
• 3.2 FAWOA의 제안 및 적용방법
• 3.3 최적 위치에 따른 상해지수 결과
• IV. Multi-layer headrest 특성 최적화
• 4.1 Multi-layer headrest의 제안
• 4.2 Multi-layer headrest 최적화 적용 방법
• 4.2.1 Headrest foam의 Stress scale factor range
• 4.2.2 Multi-layer headrest최적화 수행
• 4.3 Layer별 압축특성과 상해지수간 상관관계 분석
• 4.4 최적화된 Multi-layer headrest 검증
• VI. 결론 및 향후 과제
• 5.1 결론
• 5.2 향후 과제
• 참 고 문 헌
• ABSTRACT