Lightweight scheme selection for automotive safety structures using a quantifiable multi-objective approach

Chu, Yantao; Sun, Lingyu; Li, Lijun

doi:10.1016/j.jclepro.2019.118316

Cited by 36 publications

(12 citation statements)

References 45 publications

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“…Optimization is essential for today's industry to develop lightweight construction, improved reliability, and affordable, cost-competitive products. 6,7 Structural optimization has been significantly affected and developed by the development of numerical simulation techniques and optimization algorithms. 8 Structural optimization problems are generally divided into three categories: size, shape, and topology optimization.…”

Section: Introductionmentioning

confidence: 99%

Strength-based design of a fertilizer spreader chassis using computer aided engineering and experimental validation

İrsel

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this research, stress measurement tests and advanced application algorithms based on computer-aided design and engineering (CAD and CAE) were developed and tested. The algorithm was put implemented through a case study on the strength-based structural design and fatigue analysis of a chassis. This algorithm consists of numerical and experimental methods and additionally includes material tests, three-dimensional CAD, a finite element method (FEM)-based analysis procedures, a structural optimization strategy, prototype production, stress tests, a fatigue analysis, and design verification procedures. In the optimization study targeting the optimum chassis weight/strength ratio, two chassis prototypes, with 8 mm and a 5 mm wall thicknesses, were manufactured to verify the structural analysis and experimental tests. As a result of the FEA analyses, for 20 kN, which is the target load value of the chassis, for chassis thicknesses t = 5 mm and t = 8 mm, the maximum tensile strength was obtained as 93 MPa and 83 MPa, respectively. Thus, the material gain of 35.85 kg mass was achieved, and chassis utilization efficiency was increased. This research provides a useful methodology for experimental and advanced CAE techniques, especially for further research on complex stress and deformation analysis of chassis that are desired to be of optimum weight/strength ratio.

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Section: Introductionmentioning

confidence: 99%

Strength-based design of a fertilizer spreader chassis using computer aided engineering and experimental validation

İrsel

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Studies have shown that the energy consumption of the automotive body is reduced by 6-8% for every 10% reduction in vehicle body quality [1][2][3]. Therefore, reducing the weight of the vehicle without reducing the overall performance can effectively reduce fuel consumption and pollution emissions.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Multi-Objective Optimization of Partition Cooling in Hot Stamping of the Automotive B-Pillar Based on RSM and NSGA-II

Cui

Wang

et al. 2020

Metals

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In this study, the simulation and optimization of the partition cooling in the hot stamping process was carried out for an automotive B-pillar through minimizing the maximum thickening rate and the maximum thinning rate located in the rapid and slow cooling zones. The optimization was implemented by investigating the process parameters such as friction coefficient, sheet austenitizing temperature, holding time, heating zone temperature, the upper binder force and the lower binder force. The optimal Latin hypercube design (OLHD), the response surface methodology (RSM) and the non-dominated sorting genetic algorithm (NSGA-II) were combined to establish the relationship between process parameters and form quality objectives. After multi-objective optimization, the maximum thickening rate and the maximum thinning rate of the slow cooling zone and rapid cooling zone were 11.1% and 12.4%, 4.7% and 7.1%, respectively. Afterwards, the simulation was performed according to the optimized parameter combinations to analyze the temperature field, microstructure, tensile strength, hardness, thickening rate and thinning rate, and forming quality. Moreover, the hot stamping test and experimental results showed that the microstructure of the ferrite and pearlite structure was uniformly distributed in the slow cooling zone, and its tensile strength reached 680 MPa, the elongation was 11.4% and the hardness was 230.56 HV, while the lath martensite structure was obtained in the rapid cooling zone, with tensile strength of up to 1390 MPa, elongation of about 7.0% and hardness reaching 478.78 HV. The results of thickness, microstructure, tensile strength and the hardness test correspond well with the simulation results.

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“…Ranjan et al (2016) used the VIKOR approach to compromise ranking of 16 Indian railway zones with respect to nine evaluation criteria. Chu et al (2019) proposed a quantifiable multiobjective evaluation approach method for the selection of a lightweight scheme for automotive safety components.…”

Section: Methodsmentioning

confidence: 99%

An empirical investigation and prioritization of barriers toward implementation of agile manufacturing in the manufacturing industry

Kumar

Singh

Jain³

2020

TQM

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PurposeThe study aims at empirically investigating and prioritizing the critical barriers for the successful implementation of agile manufacturing in the medium- and large-scale Indian manufacturing industries.Design/methodology/approachA literature review of peer-reviewed journals and discussion with experts is used to identify 17 barriers to the implementation of agile manufacturing. An empirical survey is then conducted to collect data regarding the agile manufacturing barriers and is further analyzed using the factor analysis and vlsekriterijumska optimizacija i kompromisno resenje (VIKOR).FindingsBased on the survey of empirical data, the investigated critical barriers were reduced in five critical categories, as follows: Managerial constraints, technological constraints, human resource–related constraints, operational constraints and organizational culture-related constraints, which are further ranked in terms of their severity using VIKOR. This research advocates the development of a strategy for addressing the most critical barriers instead of focusing on all for the successful implementation of agile manufacturing.Originality/valueThis work contributes to agile manufacturing literature by the structured presentation of the barriers to implement agile manufacturing in the Indian manufacturing industry. It also extends the integrated factor analysis and VIKOR method to investigate and rank the barriers.

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Lightweight scheme selection for automotive safety structures using a quantifiable multi-objective approach

Cited by 36 publications

References 45 publications

Strength-based design of a fertilizer spreader chassis using computer aided engineering and experimental validation

Strength-based design of a fertilizer spreader chassis using computer aided engineering and experimental validation

Numerical Simulation and Multi-Objective Optimization of Partition Cooling in Hot Stamping of the Automotive B-Pillar Based on RSM and NSGA-II

An empirical investigation and prioritization of barriers toward implementation of agile manufacturing in the manufacturing industry

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