The vehicle body structure is of a double-layer structure and comprises an inner wall part, an inner rib part and an outer wall part, the vehicle body structure comprises a side top part, the thickness of the outer wall part in the side top part is larger than that of the inner wall part, and in the section of the vehicle body structure, the thickness of a sectional material of the side top part is gradually reduced from the middle to the two ends. The inner rib density of the inner rib part in the side top part is gradually increased from the middle to the two ends, and the inner rib density of the areas at the two ends of the side top part is maximum in the section of the vehicle body structure. The traditional mode that the thickness of the inner wall part is larger than that of the outer wall part is changed, the vertical rigidity of the vehicle body is improved, and the lightweight effect is better under the same performance; meanwhile, the uniform distribution mode of the inner ribs is changed, the density of the inner ribs is gradually increased from the middle to the two ends and is the maximum in the section of the vehicle body structure, rhombic deformation load transmission is improved, the annular rigidity is improved, and the light weight effect is better under the same performance.
本发明公开一种轻量化车体结构和轨道车辆,车体结构为双层构造,包括内壁部、内筋部和外壁部,车体结构包括侧顶部,侧顶部中的外壁部的厚度大于内壁部的厚度,在车体结构的断面内,侧顶部的型材厚度由中部向两端逐渐减小,侧顶部中内筋部的内筋密度由中部向两端逐渐增大,且侧顶部两端区域的内筋密度在车体结构的断面内为最大。本发明改变传统内壁部厚度高于外壁部厚度的方式,提升车体垂向刚度,相同性能下轻量化效果更好;同时,改变内筋均匀分布方式,内筋密度由中部向两端逐渐增大,并在车体结构的断面内为最大,改善菱形变形载荷传递,提升环向刚度,相同性能下轻量化效果更好。
Lightweight vehicle body structure and railway vehicle
一种轻量化车体结构和轨道车辆
2023-09-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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