The invention belongs to the field of composite material structure ply design of an aircraft structure, and particularly relates to a composite material laminated plate ply proportion optimization method, which comprises the following steps: S1, in an aircraft design process, determining a design load and an aircraft structure layout, and determining design allowable values of an aircraft application composite material, including axial allowable strain epsilon ad and shear allowable strain gamma ad; s2, based on the external load and the specific layout of the aircraft structure, the bearing characteristic value T of the to-be-layered structure of the aircraft is calculated, and the bearing characteristic value T represents the trend characteristics of the axial bearing and the shear bearing of the to-be-layered structure of the aircraft; s3, obtaining a plurality of composite material laminated plates in a preset proportion in the layering library, and calculating a material characteristic value Tm of the composite material laminated plates; and S4, based on the bearing characteristic value T of the structure, selecting the composite material laminated plate with the material characteristic value Tm matched with the bearing characteristic value T. And the relationship between the structure and the material is quantified, so that the material selection of the structure is more visual and optimal.
本申请属于飞机结构的复材结构铺层设计领域,特别涉及一种复合材料层合板铺层比例优化方法,步骤S1:在飞机设计过程中,确定设计载荷及飞机结构布局,明确飞机应用复合材料的设计许用值,包含轴向许用应变εad、剪切许用应变γad;步骤S2:基于飞机结构外部载荷和特定布局,计算飞机待铺层结构的承载特征值T,所述承载特征值T表征飞机待铺层结构轴向承载和剪切承载的趋势特征;步骤S3:获取铺层库中多个预设比例的复合材料层合板,计算所述复合材料层合板材料特征值Tm;步骤S4:基于结构承载特征值T,选取与承载特征值T相匹配的材料特征值Tm的复合材料层合板。量化结构与材料之间的关系,能够使结构选材更加直观和最优。
Method for optimizing layering proportion of composite material laminated plate
一种复合材料层合板铺层比例优化方法
2022-12-09
Patent
Electronic Resource
Chinese
IPC: | G16C / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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