CAJ | 학술논문

主要阐述了概念设计阶段某款轿车结构的有限元分析过程，建立该车的有限元模型，采用简化的梁截面进行模拟并计算了截面的力学参数，根据接头的力学特性，计算了5个主要的接头刚度，并利用弹簧单元和刚性单元模拟了接头。计算该车的扭转刚度、弯曲刚度和模态，并与详细设计进行对比和分析，研究表明：仿真结果与详细设计结果基本接近，能够比较准确地预测整车的性能。
주요천술료개념설계계단모관교차결구적유한원분석과정，건립해차적유한원모형，채용간화적량절면진행모의병계산료절면적역학삼수，근거접두적역학특성，계산료5개주요적접두강도，병이용탄황단원화강성단원모의료접두。계산해차적뉴전강도、만곡강도화모태，병여상세설계진행대비화분석，연구표명：방진결과여상세설계결과기본접근，능구비교준학지예측정차적성능。
The finite-element analysis process of a car body at concept design phase is discussed .We build the finite-element model of the car body ,calculate the Mechanical parameters with the simplified beam section and the stiffness of five main joints according to the mechanical feature of the joints ,and simulate the joints with spring and rigid elements .The torsional and bending stiffness and modes of the car are calculated ,which are compared with the detailed design results ,and the it is showed that the simulation is reasonable and can be used to predict the performance of car body .