Recently, the automobile industry is improving fuel efficiency and reducing exhaust emissions by strengthening environmental regulations in various countries around the world. Among the measures to solve this problem, weight reduction of automobile parts is a key factor for improving fuel efficiency...
Recently, the automobile industry is improving fuel efficiency and reducing exhaust emissions by strengthening environmental regulations in various countries around the world. Among the measures to solve this problem, weight reduction of automobile parts is a key factor for improving fuel efficiency and reducing exhaust gas, which is closely related to driving resistance, braking, and safety. As a result, researches for reducing the weight of automobile parts have been continuously carried out. Among the main parts of the automobile, the seat should absorb the impact and vibration generated during driving to satisfy the safety and comfort of passengers. The weight of the seat has been steadily increasing due to various convenience specifications in accordance to the improvement of consumers' demands and safety standards. In addition, there are mechanical bonding, welding, and adhesives in the existing alternative material bonding methods. Among them, the adhesive bonding is uniformly distributed in the stress and increases the structure and fatigue strength without deformation of the adherend. However, since the types of adhesives are various and the strength varies depending on the bonding material, the bonding performance of the material should be evaluated. In this study, a bonding test was conducted to select the joining method of CFRP and Steel material for the production of seat back frame by compression molding using BMC method, and the excellent performance of mixed adhesive and adhesive-rivet hybrid method was confirmed. In addition, the strength evaluation of the initially designed seat back frame using finite element analysis was performed, and it was confirmed that it is safe against backward moment load and the necessity of light-weight for side frame was confirmed. In order to fabricate the seat back frame by the BMC method, the study on the dividing position was carried out, and a model in which the connection part between the side frame and the upper frame was divided by considering the bonding strength was proposed.
Recently, the automobile industry is improving fuel efficiency and reducing exhaust emissions by strengthening environmental regulations in various countries around the world. Among the measures to solve this problem, weight reduction of automobile parts is a key factor for improving fuel efficiency and reducing exhaust gas, which is closely related to driving resistance, braking, and safety. As a result, researches for reducing the weight of automobile parts have been continuously carried out. Among the main parts of the automobile, the seat should absorb the impact and vibration generated during driving to satisfy the safety and comfort of passengers. The weight of the seat has been steadily increasing due to various convenience specifications in accordance to the improvement of consumers' demands and safety standards. In addition, there are mechanical bonding, welding, and adhesives in the existing alternative material bonding methods. Among them, the adhesive bonding is uniformly distributed in the stress and increases the structure and fatigue strength without deformation of the adherend. However, since the types of adhesives are various and the strength varies depending on the bonding material, the bonding performance of the material should be evaluated. In this study, a bonding test was conducted to select the joining method of CFRP and Steel material for the production of seat back frame by compression molding using BMC method, and the excellent performance of mixed adhesive and adhesive-rivet hybrid method was confirmed. In addition, the strength evaluation of the initially designed seat back frame using finite element analysis was performed, and it was confirmed that it is safe against backward moment load and the necessity of light-weight for side frame was confirmed. In order to fabricate the seat back frame by the BMC method, the study on the dividing position was carried out, and a model in which the connection part between the side frame and the upper frame was divided by considering the bonding strength was proposed.
주제어
#Automotive seat back frame Carbon fiber reinforce plastic (CFRP) Finite element analysis Mold parting design
학위논문 정보
저자
임준영
학위수여기관
전북대학교 일반대학원
학위구분
국내석사
학과
기계설계학
지도교수
강희용
발행연도
2017
총페이지
vi, 46 p.
키워드
Automotive seat back frame Carbon fiber reinforce plastic (CFRP) Finite element analysis Mold parting design
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