The invention belongs to the technical field of chassis and protection of commercial vehicles, and discloses a rear protection device of a commercial vehicle and a design method thereof, the commercial vehicle and the design method of the rear protection device of the commercial vehicle. On the premise of determining the length of a cross beam and the width of the rear protection device of the commercial vehicle, the cross beam is designed to be made of a non-metal material according to a three-point loading test standard; and according to the safety coefficient, a topological optimization method is combined with the anti-bending section coefficient to determine the section size of the cross beam, so that the cross beam with the determined length and section size can be obtained. The lightweight design of the rear protection device of the commercial vehicle is realized by designing the cross beam made of the non-metal material, the structural strength of the cross beam is ensured through topological optimization, and the improvement of the overall reliability and the lightweight of the commercial vehicle are facilitated.
本发明属于商用车底盘和防护技术领域,公开了一种商用车后防护装置及其设计方法和商用车,商用车后防护装置的设计方法,在确定了横梁长度和商用车后防护装置宽度的前提下,根据三点加载试验标准,设计横梁为非金属材质,根据安全系数,采用拓扑优化方法结合抗弯断面系数,确定横梁的断面尺寸,进而可以得到确定长度和断面尺寸的横梁。本发明通过设计非金属材质横梁,实现了商用车后防护装置的轻量化设计,通过拓扑优化利于确保横梁的结构强度,利于商用车的整体可靠性的提高和轻量化。
Commercial vehicle rear protection device, design method thereof and commercial vehicle
商用车后防护装置及其设计方法和商用车
2023-06-06
Patent
Electronic Resource
Chinese
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