最后一英里电动汽车转向节用强化铝复合材料的数值研究

IF 2.6 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Carlos Santana, L. Reyes-Osorio, Jesus Orona-Hinojos, Lizbeth Huerta, Alfredo Rios, P. Zambrano-Robledo
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引用次数: 0

摘要

转向节是电动汽车悬挂和转向驱动系统的关键部件。最后一英里车辆的电气化在成本、行驶里程和电池重量补偿方面提出了挑战。本研究提出了一种数值方法,用于评估 60XX 系列铝金属基复合材料(AMMC)与增强陶瓷颗粒在中型重载末端货运车辆转向节部件中的应用。使用 AMMC 可使转向节具有足够的强度、刚度和安全性能,适用于电动货运车辆。数值研究包括三种铝合金、两种 AMMC 合金和一种 Al 6061-T6 合金作为参考材料。数值研究考虑的是小于 12 吨的中型重型车辆级别(如电动汽车货物配置)(级别 1-4)。受断裂韧性的限制,4 级 AMMC 合金的最大 von Mises 应力超过 350 兆帕。与商用铸铁相比,重量减轻了约 65%。此外,铝 6061-T6 合金的应力值超过了 300 兆帕,限制了其在重型车辆上的适用性。该研究建议评估在转向节等关键部件中采用 AMMC 合金的可行性,并提出解决方案,以增强传统汽车悬挂系统并克服相关挑战。该研究旨在作为轻量化设计指南,深入探讨各种货运车辆在不同载荷条件下的应力变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Numerical Study of Reinforced Aluminum Composites for Steering Knuckles in Last-Mile Electric Vehicles
The steering knuckle is a critical component of the suspension and steering drive systems of electric vehicles. The electrification of last-mile vehicles presents a challenge in terms of cost, driving range and compensation of battery weight. This work presents a numerical methodology to evaluate 60XX series aluminum metal matrix composites (AMMCs) with reinforcement ceramic particles for steering knuckle components in medium heavy-duty last-mile cargo vehicles. The use of AMMCs provides lightweight knuckles with sufficient strength, stiffness and safety conditions for electrical vehicle cargo configurations. The numerical study includes three aluminum alloys, two AMMC alloys and an Al 6061-T6 alloy as reference materials. The medium-duty heavy vehicle class < 12 t, such as electrical vehicle cargo configurations, is considered for the numerical study (class 1–4). The maximum von Mises stress for class 4 AMMC alloys exceeds 350 MPa, limited by fracture toughness. The weight reduction is about 65% when compared with commercial cast iron. Moreover, Al 6061-T6 alloys exhibit stress values surpassing 300 MPa, constraining their suitability for heavier vehicles. The study proposes assessing the feasibility of implementing AMMC alloys in critical components like steering knuckles and suggests solutions to enhance conventional vehicle suspension systems and overcome associated challenges. It aims to serve as a lightweight design guide, offering insights into stress variations with differing load conditions across various cargo vehicles.
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来源期刊
World Electric Vehicle Journal
World Electric Vehicle Journal Engineering-Automotive Engineering
CiteScore
4.50
自引率
8.70%
发文量
196
审稿时长
8 weeks
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