Single- and Multi-material-Based Design of Lightweight Vehicle Body

IF 1.5 4区 工程技术 Q3 ENGINEERING, MECHANICAL
Çağatay Koç, Paşa Yayla
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Abstract

This study investigates the impact of design parameter adjustments on the vehicle’s strength and body weight. To generate a lightweight design for a vehicle body, the bus body is examined and optimised. The direct optimisation process is used to obtain optimised vehicle bodies by changing material, component’s wall thickness and material diversity. The entire body of the vehicle is considered, but local optimisation is prioritised in this work because some parts are affected more than others under different loading conditions. Three different loading conditions are decided by considering normal loads on the vehicle bodies under normal driving conditions. The vehicle’s body structure weight is minimised while stresses and deformations are created in the boundaries. Three different materials are initially analysed and optimised. The multi-material vehicle body is designed after combining two materials with the best optimisation performance using optimisation rates. After obtaining the multi-material-based vehicle structure, its initial analysis and optimisation procedures are calculated as single-material-based vehicle structures. Finally, four different optimised vehicle body structures are obtained: three single-material based and one multi-material based. The effects of different loading conditions, and design parameters, such as component wall thickness, material type, and material diversity, are investigated, along with their advantages and disadvantages.

Abstract Image

基于单一材料和多种材料的轻质车身设计
本研究探讨了设计参数调整对车辆强度和车身重量的影响。为了对车身进行轻量化设计,对巴士车身进行了研究和优化。通过改变材料、部件壁厚和材料多样性,采用直接优化流程获得优化车身。整个车身都被考虑在内,但在这项工作中,局部优化被放在首位,因为在不同的负载条件下,某些部件比其他部件受到的影响更大。通过考虑正常行驶条件下车身的正常载荷,确定了三种不同的载荷条件。车身结构重量最小化,同时在边界产生应力和变形。最初对三种不同的材料进行了分析和优化。在使用优化率将两种具有最佳优化性能的材料组合后,设计出多材料车身。获得基于多材料的车体结构后,其初始分析和优化程序与基于单材料的车体结构一样进行计算。最后得到四种不同的优化车身结构:三种基于单一材料,一种基于多种材料。研究了不同加载条件和设计参数(如部件壁厚、材料类型和材料多样性)的影响及其优缺点。
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来源期刊
International Journal of Automotive Technology
International Journal of Automotive Technology 工程技术-工程:机械
CiteScore
3.10
自引率
12.50%
发文量
129
审稿时长
6 months
期刊介绍: The International Journal of Automotive Technology has as its objective the publication and dissemination of original research in all fields of AUTOMOTIVE TECHNOLOGY, SCIENCE and ENGINEERING. It fosters thus the exchange of ideas among researchers in different parts of the world and also among researchers who emphasize different aspects of the foundations and applications of the field. Standing as it does at the cross-roads of Physics, Chemistry, Mechanics, Engineering Design and Materials Sciences, AUTOMOTIVE TECHNOLOGY is experiencing considerable growth as a result of recent technological advances. The Journal, by providing an international medium of communication, is encouraging this growth and is encompassing all aspects of the field from thermal engineering, flow analysis, structural analysis, modal analysis, control, vehicular electronics, mechatronis, electro-mechanical engineering, optimum design methods, ITS, and recycling. Interest extends from the basic science to technology applications with analytical, experimental and numerical studies. The emphasis is placed on contributions that appear to be of permanent interest to research workers and engineers in the field. If furthering knowledge in the area of principal concern of the Journal, papers of primary interest to the innovative disciplines of AUTOMOTIVE TECHNOLOGY, SCIENCE and ENGINEERING may be published. Papers that are merely illustrations of established principles and procedures, even though possibly containing new numerical or experimental data, will generally not be published. When outstanding advances are made in existing areas or when new areas have been developed to a definitive stage, special review articles will be considered by the editors. No length limitations for contributions are set, but only concisely written papers are published. Brief articles are considered on the basis of technical merit.
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