The invention relates to the technical field of composite material vehicle body structures, in particular to a composite material vehicle body shoulder profile structure, a shoulder profile is formed by pultrusion of a composite material in the length direction of a vehicle body and comprises an outer side plate body, an inner side plate body and a connecting plate, the outer side plate body is an arc plate, and the inner side plate body adopts a multi-section design; comprising a first part, a second part and a third part, the second part and the third part are symmetrically arranged on the two sides, the connecting plate comprises a first rib plate, a second rib plate, a third rib plate, a fourth rib plate and a fifth rib plate, the space between the outer side plate body and the inner side plate body is divided into a plurality of cavities, the weight of the shoulder sectional material can be effectively reduced, and the strength and rigidity of the sectional material are improved. Through the variable cross-section design between the second part and the outer side plate body, bearing in multiple directions can be met, the radial aerodynamic load borne by the shoulder profile and the resultant force borne in the circumferential direction face the extension direction of the end of the shoulder profile, the aerodynamic load borne by the shoulder profile in the radial direction is dispersed, and the overall bending resistance of the structure is enhanced.
本发明涉及复合材料车体结构技术领域,尤其涉及一种复材车身肩部型材结构,肩部型材通过复合材料沿车身长度方向拉挤成型,包括外侧板体、内侧板体和连接板,外侧板体设置为圆弧板,内侧板体采用多段设计,包括第一部分以及对称设置在两侧的第二部分和第三部分,连接板包括第一肋板、第二肋板、第三肋板、第四肋板和第五肋板,将外侧板体和内侧板体之间分隔出多个空腔,能够有效降低肩部型材的重量,并提升型材的强度和刚度。通过第二部分与外侧板体之间的变截面设计,能够满足多个方向的承载,使肩部型材承受的径向气动载荷与沿周向承载的合力朝向肩部型材端部的延伸方向,分散肩部型材径向承受的气动载荷,增强结构的整体抗弯性能。
Composite vehicle body shoulder profile structure
一种复材车身肩部型材结构
2021-06-18
Patent
Electronic Resource
Chinese
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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