汽车减重用变厚度板负荷裕量优化设计.pdfVIP

汽车减重用变厚度板与负荷裕量优化设计1* 1 1,2 刘相华 霍刚 1 东北大学研究院，沈阳 110006 ，中国 2 本钢浦项冷轧薄板有限责任公司，本溪 117021 ， 中国 摘要：介绍了二种用于汽车轻量化的材料：激光拼焊板（TWB ）和轧制差厚板（TRB ）。分析了TWB 与TRB 的优缺点及各自的适用范围，给出了国外典型汽车零部件使用差厚板减重的实例和具体数据， 对国内外轧制差厚板生产厂家现状以及典型乘用车使用差厚板的案例作了介绍。目前国际上只有二 个厂家可以生产 TRB 产品，即欧洲的慕贝尔公司和中国的东冶海星公司。在介绍等强度设计及其案 例的基础上，提出负荷裕量优化设计思想，给出了相关计算公式及其在汽车零件减重中使用方法。 从承载能力、裕量系数、节材效果等方面，论述了采用负荷裕量优化设计思想的优点。提出汽车设 计师与材料成形研发人员在新车型开发前期进行合作，对推广负荷裕量优化设计的必要性。对差厚 板在我国应用的前景作了分析预测，对新型差厚板的开发研究及发展趋势作了展望。 关键词：汽车轻量化 负荷裕量优化 激光拼焊板 轧制差厚板 Variable Gauge Sheet for Car Lightweight and Design by Optimization of Surplus Capacity 1 1 2 Liu Xianghua Huo Gang ， 1. RIST of Northeastern University, Shenyang 110004, China; 2, BX Steel POSCO Cold Rolled Sheet Co., Ltd. Benxi 117021, China Abstract ：Two kinds of variable gauge sheet, TWB and TRB, were introduced ，which have been taken as lightweight materials for car lightweight. The merits and faults both for TWB and TRB were discussed. The technology of producing TRB was briefly introduced ，including rolling, annealing, leveling and cutting. Now there are only two producers for TRB products, Mubea Co. in Europe and MINS Co. in China. The typical examples of applying the TRB to auto industry abroad and domestic were given out. The idea about optimization to surplus capacity (OSC) is proposed for car lightweight, and its application method was discussed based on the view of loading ability, factor of over load and saving materials, dealing with the advantages and the practicability. The authors suggest a way to carry out the