CAJ | 학술논문

为了验证薄壳结构跌落冲击问题动态数值仿真的方法途径，设计制作了带有配重的薄壳结构，测定了材料主要力学性能，利用非线性有限元软件对该结构进行单次和累积结果的多次跌落冲击数值仿真，并进行了验证试验。对该结构的跌落冲击过程、典型位置的加速度响应、塑性变形的仿真、验证试验结果进行了对比分析，结果表明：采用的数值仿真方法和途径能够较好地研究分析薄壳结构的跌落冲击及其他同类问题。
위료험증박각결구질락충격문제동태수치방진적방법도경，설계제작료대유배중적박각결구，측정료재료주요역학성능，이용비선성유한원연건대해결구진행단차화루적결과적다차질락충격수치방진，병진행료험증시험。대해결구적질락충격과정、전형위치적가속도향응、소성변형적방진、험증시험결과진행료대비분석，결과표명：채용적수치방진방법화도경능구교호지연구분석박각결구적질락충격급기타동류문제。
In order to verify the dropping impact simulation method of shell structures, a shell structure with counterbalance is designed and produced, the main mechanical property of the materials used is determined, the drop impact process of this shell structure is simulated by nonlinear finite element software RADIOSS and a verification test is conducted. By comparing the drop impact process, acceleration response of representative point and plastic deformation of this shell structure in simulation and test, it can be shown that the simulation method mentioned in this article can be applied to simulate the drop impact process of shell structures and other similar process.