CAJ | 학술논문

整体网格壁板广泛应用于航天器结构中，该文采用增量压弯成形法作为火箭贮箱2219 T 87铝合金网格壁板成形工艺。基于ABAQUS建立网格壁板增量压弯模型，并分析壁板网格参数、网格加强对成形结果的影响。结果表明，残余变形量与压弯量和筋高度均近似呈线性关系，纵向加强筋能有效提高成形精度。通过试验验证了仿真模型的准确性，为整体壁板成形工艺提供指导。
정체망격벽판엄범응용우항천기결구중，해문채용증량압만성형법작위화전저상2219 T 87려합금망격벽판성형공예。기우ABAQUS건립망격벽판증량압만모형，병분석벽판망격삼수、망격가강대성형결과적영향。결과표명，잔여변형량여압만량화근고도균근사정선성관계，종향가강근능유효제고성형정도。통과시험험증료방진모형적준학성，위정체벽판성형공예제공지도。
Integrally stiffened panels are widely used in the structure of aircraft . In this paper , the incremental bending was used for 2219T87 grid-type rib panel for launch vehicle tanks . The finite element model of the incremental bending was established based on ABAQUS ,and the effects of the parameters of grid type and grid strength on the forming quality were analyzed .The results indicate that the residual strain is approximately linear with the bend degree and the thickness of rib . The longitudinal ribs can effectively improve the forming precision . The numerical model was verified by the incremental bending experiments . The study provides guidance for the integrally panel forming process .