요즘 자동차의 증가로 인해 자동차 사고가 급격히 발생하게 되어 차체의 손상 및 고장이 자주 일 어난다. 이에 따라 본 논문에서는 자동차의 골격으로서의 프레임들 중의 하나인 모노코크 바디에 대 하여 연구를 수행하였다. 일자형과 X자형 크로스 멤버 모노코크 바디 프레임 모델들에 대하여 구조 해석 및 피로 해석을 수행하였다. 각 모노코크 바디 프레임 모델의 변형량과 응력의 발생량 및 분포, 그리고 피로 수명과 피로 손상 정도를 예상 및 비교함으로써 내구성이 있는 모노코크 바디 프레임 설계를 할 수 있다. X자형 모노코크 바디 프레임이 기존의 일자형 크로스 멤버 모노코크 바디 프레임 보다 더 차량에 적용하기에 더 적합한 것으로 판단된다. 또한, 본 연구의 결과를 종합하여 모노코크 바디 프레임 설계에 응용한다면, 더 우수한 내구성을 가진 모노코크 바디 프레임을 설계하는데 기여 할 수 있을 것으로 사료된다.
As the number of cars are increased nowadays, the car accidents are happened abruptly. So, the damage and the breakdown of car body occur frequently. Therefore, this study was carried on a monocoque body among the frames as the automotive frame. The structural and fatigue analyses are carried on the monocoque body frame models of cross member in a row and that of X-shaped. The deformation, the occurrence and distribution of stress, the extent of fatigue life and fatigue damage are expected and compared on each model of monocoque body frame. Therefore, The durable monocoque body frame can be designed by anticipating and comparing the extent of fatigue life and fatigue damage. It is estimated that the monocoque body frame model of X-shaped can be more adequate to be applied to the automobile than the existed monocoque body frame of cross member in a row. As the design of monocoque body frame is also applied by putting together the result of this study, it is thought to be devoted to the design of the monocoque body frame with more superior durability
As the number of cars are increased nowadays, the car accidents are happened abruptly. So, the damage and the breakdown of car body occur frequently. Therefore, this study was carried on a monocoque body among the frames as the automotive frame. The structural and fatigue analyses are carried on the monocoque body frame models of cross member in a row and that of X-shaped. The deformation, the occurrence and distribution of stress, the extent of fatigue life and fatigue damage are expected and compared on each model of monocoque body frame. Therefore, The durable monocoque body frame can be designed by anticipating and comparing the extent of fatigue life and fatigue damage. It is estimated that the monocoque body frame model of X-shaped can be more adequate to be applied to the automobile than the existed monocoque body frame of cross member in a row. As the design of monocoque body frame is also applied by putting together the result of this study, it is thought to be devoted to the design of the monocoque body frame with more superior durability.
