기둥측면충돌시험을 고려한 전기자동차 차체 및 배터리 팩 통합 구조물의 비선형동적응답 구조최적설계

초록

A nonlinear, dynamic response structural optimization is carried out for a structure that integrates the body-in-white and battery pack of an electric vehicle. The loading conditions are made from a side pole impact test. The objective function is the mass, while the intrusion of the battery pack is defined as a constraint to prevent fires or explosions involving the battery pack during a car accident. An optimization method that uses the equivalent static loads method(ESLM) is proposed. An electrical vehicle(EV) model is generated from an existing crash simulation vehicle model. The proposed method was found to be an effective structural design method for electric vehicles.

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