The invention relates to rail vehicles, and particularly relates to a roof framework structure, a vehicle body and a rail vehicle. The roof framework structure comprises a pair of roof edge beams arranged at intervals and a plurality of camber beams connected between the pair of roof edge beams. The structure further comprises a pair of reinforcing beams. The multiple camber beams comprise two door area camber beams located at the two ends of the roof edge beam respectively, and the two ends of each reinforcing beam are connected to the ends, close to the same roof edge beam, of the two door area camber beams respectively. And the pair of reinforcing beams is oppositely bent along a force transmission direction. In the invention, topological optimization is carried out on a vehicle body stress and a force propagation path; therefore, the reinforcing beam is additionally arranged in the roof framework structure according to a topological optimization result; and a longitudinal load capacity and a bending resistance and torsion resistance ability of the roof framework structure are improved, particularly, the roof framework structure has vertical bending resistance so that the roof framework structure meets requirements for the longitudinal load capacity and the bending resistance and torsion resistance ability of a vehicle body.
本发明涉及轨道车辆,尤其涉及车顶骨架结构、车体及轨道车辆。该车顶骨架结构包括一对成间隔设置的车顶边梁以及连接于一对车顶边梁之间的若干个弯梁,还包括一对加固梁,若干个弯梁包括分别位于车顶边梁两端的两个门区弯梁,每个加固梁的两端分别连接在两个门区弯梁上靠近同一车顶边梁的端部;并且一对加固梁沿传力方向分别相对的弯曲设置。本发明对车体受力及力的传播路径进行拓扑优化,从而根据拓扑优化结果在车顶骨架结构中增设加固梁,以提高该车顶骨架结构的纵向载荷能力以及抗弯抗扭能力,特别是使得该车顶骨架结构具备抗垂向弯曲能力,从而使得该车顶骨架结构满足车体纵向载荷能力和抗弯抗扭能力的要求。
Roof framework structure, vehicle body and rail vehicle
车顶骨架结构、车体及轨道车辆
2020-10-23
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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