Automotive weight reduction through nonlinear finite element modeling, fatigue analysis, and optimization of hot stamped ultra-high strength steels

通过非线性有限元建模、疲劳分析和热冲压超高强度钢的优化来减轻汽车重量

• 批准号: 503670-2016
• 负责人: Kim, IlYong
• 金额: $ 2.91万
• 依托单位: Queen's University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=655552
• 关键词: Automotive; weight; reduction; through; nonlinear

Automotive transportation is the dominant form of transportation in the industrialized world. There are an estimated 1.3 people for every vehicle on the road today in the United States alone; 1.6 people for every vehicle on the road in Canada. As expected with such a large industry, there is a competitive market for each supplier and manufacturer. Lower cost, higher performance, and environmentally conscious products are of predominant concern for companies competing today. Magna Powertrain, a major tier-1 supplier in the automotive industry, is developing an alternative clutch hub to their existing performance system. In order to remain competitive in the marketplace as greenhouse gas emission standards continue to increase, Magna Powertrain is targeting a new design that employs ultra-high strength boron steel. The successful implementation of the material into a new clutch system would represent significant weight savings, translating directly into improved fuel efficiency. Currently boron steel is employed largely in crash structures in the automotive market with little expansion into other applicable vehicle areas in which car makers have limited experience. Using the current Magna Powertrain clutch hub design as a benchmark, research will be expanded to the use of martensitic boron steel for the next generation's replacement. Novel high cyclic fatigue research will be conducted using single and multiphase fraction boron steel, addressing the current research void. Numerical modelling and design optimization of the clutch component will serve as a means to develop fatigue considerations in multiphase high cyclic structural components. Metrics including component mass and fatigue strength will be of particular focus for this study. Manufacturing optimization will simultaneously be considered in an effort to realize a more effective design. A target of 30% weight reduction in the component has been set, which would correspond to a decreased fuel consumption of 7 liters over the life of the product, per vehicle implementation. One Master's student will be trained, including on-site internship at Magna.****

汽车运输是工业化国家的主要运输形式。 据估计，仅在美国，每辆汽车就有1.3人在路上行驶;在加拿大，每辆汽车就有1.6人在路上行驶。 正如预期的那样，对于这样一个庞大的行业，每个供应商和制造商都有一个竞争激烈的市场。 更低的成本、更高的性能和环保意识的产品是当今企业竞争的主要关注点。 麦格纳动力总成，一个主要的一级供应商在汽车行业，正在开发一种替代离合器轮毂，以其现有的性能系统。 随着温室气体排放标准的不断提高，为了在市场上保持竞争力，麦格纳动力总成的目标是采用超高强度硼钢的新设计。 将该材料成功应用到新的离合器系统中将意味着显著的重量减轻，直接转化为提高的燃油效率。 目前，硼钢主要用于汽车市场的碰撞结构，很少扩展到汽车制造商经验有限的其他适用车辆领域。 使用目前的麦格纳动力总成离合器轮毂设计为基准，研究将扩大到使用马氏体硼钢为下一代的替代品。 新的高周疲劳研究将使用单一和多相分数的硼钢，解决目前的研究空白。 离合器部件的数值建模和设计优化将作为多相高循环结构部件中的疲劳考虑因素的一种手段。 包括组件质量和疲劳强度的测试将是本研究的重点。 为了实现更有效的设计，将同时考虑制造优化。 已设定的目标是将部件重量减轻30%，这相当于在产品的整个生命周期内，每辆车的燃油消耗量减少7升。一名硕士生将接受培训，包括在麦格纳的现场实习。