Material Selection of Green Design Processes for Car Body via considering Environment Property

Abstract

Facing serious environmental degradation and its resulting of climate warming, how to conserve energy and reduce emissions becomes a serious issue for government supervisors and modern vehicle enterprises. Reducing the mass of a vehicle is one of the most effective ways to reduce emissions and improve fuel utilization, essential to persist the low-carbon and sustainable-development bases in industrial production processes. When it comes to the selection of lightweight material for a car body in the processes of vehicle production, it is essential to comprehensively evaluate multiple relevant attributes in order to select the optimal material from several alternatives. us, it can be seen as a multicriterion decision-making (MCDM) problem. However, it is difficult to consider both the uncertainty of the expert's preference and the imprecision of the attribute estimate. Considering this, this paper uses the method integrating grey relational analysis (GRA) with analytic hierarchy process (AHP) to solve the problem of lightweight material selection for a car body. e AHP method is used to determine the weight of each attribute, and the GRA method is to select the optimal material among several alternatives. Finally, a case study is applied to verify the practicability of the proposed approach. e result shows that the proposed multicriterion decision method provides a precise and objective foundation for making decisions about the material selection issue.

Hierarchical Multi-Objective Optimization of Automobile Seat Frame Based on Grey Fuzzy Logic System

“…To reduce the total mass of BIW while maintaining other mechanical properties, Xiong et al took the side structure of the BIW as research object and then determined the optimal thicknessmaterial combination of the optimized parts based on GRA and principal component analysis (PCA) [21]. By combining GRA with the Analytic Hierarchy Process (AHP), Pu and Ma solved the problem of selecting lightweight materials for BIW and verified the feasibility of this method through an example [22]. Meanwhile, Xiong and Zhang built optimization models of the static and dynamic stiffness along with the front and side crushability for the body in white (BIW).…”

Multiobjective Lightweight Optimization Design Method for a Dump Truck Carriage under Multiple Working Conditions

“…Lee combines the optimal design of lightweight materials and rigid materials to achieve a 10% reduction in the weight of the instrument panel [7]. Additionally, the GPA and AHP methods are employed to select the body lightweight materials and determine the weight of each attribute, respectively [8]. In [9], a cost-effective and reliable joining technique for multimaterial designs, such as the joining of aluminum to press-hardened boron steel and welding of resistance elements, is investigated.…”

Bütünleşik SWARA-MULTIMOORA Yaklaşımı ile Uçak Gövdesi için Malzeme Seçimi

“…Uluslararası havacılık sektörü insan kaynaklı karbon salınımının yaklaşık %2,5'ini oluşturmaktadır [1]. Literatürde, mühendislik uygulamalarında malzeme seçimi üzerine gerçekleştirilmiş birçok çalışma mevcut olup bu çalışmaların çoğu otomobil parçaları seçimi üzerinedir [12][13][14][15][16]. Buna rağmen literatürde uçak malzemesi seçimi ile ilgili sınırlı sayıda çalışma mevcuttur.…”