scholarly journals Multiple-Criteria Evaluation of Thin-walled Energy-Absorbing Structures of Train under fuzzy environment: Modelling and Algorithm

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Hongliang Li ◽  
Jiangjie Qiu ◽  
Tao Li ◽  
Guoquan Xie ◽  
Danqi Wang ◽  
...  
Keyword(s):  
Multiple Criteria ◽  
Fuzzy Environment ◽  
Multiple Criteria Evaluation ◽  
Thin Walled ◽  
Energy Absorbing ◽  
Environment Modelling

scholarly journals Rank disequilibrium in multiple-criteria evaluation schemes

2017 ◽  
Vol 10 (1) ◽  
pp. 165-180
Author(s):  
Jonathan K. Hodge ◽  
Faye Sprague-Williams ◽  
Jamie Woelk
Keyword(s):  
Multiple Criteria ◽  
Multiple Criteria Evaluation

Composite Core Cross Tube Crushing Analysis

2020 ◽  
Author(s):  
Sean Jenson ◽  
Muhammad Ali ◽  
Khairul Alam
Keyword(s):  
Energy Absorption ◽  
Compressive Loading ◽  
Deformation Mode ◽  
High Energy ◽  
Absorption Capacity ◽  
Functionally Graded ◽  
Layer By Layer ◽  
Thin Walled ◽  
The Cross ◽  
Energy Absorbing

Abstract Thin walled axial members are typically used in automobiles’ side and front chassis to improve crashworthiness of vehicles. Extensive work has been done in exploring energy absorbing characteristics of thin walled structural members under axial compressive loading. The present study is a continuation of the work presented earlier on evaluating the effects of inclusion of functionally graded cellular structures in thin walled members under axial compressive loading. A compact functionally graded composite cellular core was introduced inside a cross tube with side length and wall thickness of 25.4 mm and 3.048 mm, respectively. The parameters governing the energy absorbing characteristics such as deformation or collapsing modes, crushing/ reactive force, plateau stress level, and energy curves, were evaluated. The results showed that the inclusion of composite graded cellular structure increased the energy absorption capacity of the cross tube significantly. The composite graded structure underwent progressive stepwise, layer by layer, crushing mode and provided lateral stability to the cross tube thus delaying local tube wall collapse and promoting large localized folds on the tube’s periphery as compared to highly localized and compact deformation modes that were observed in the empty cross tube under axial compressive loading. The variation in deformation mode resulted in enhanced stiffness of the composite structure, and therefore, high energy absorption by the structure. This aspect has a potential to be exploited to improve the crashworthiness of automobile structures.

Generative Matching Between Heterogeneous Meta-Model' Systems Based on Hybrid Heuristic

2019 ◽  
Vol 12 (2) ◽  
pp. 53-71
Author(s):  
Zouhair Ibn Batouta ◽  
Rachid Dehbi ◽  
Mohamed Talea ◽  
Hajoui Omar
Keyword(s):  
Computer Systems ◽  
Multiple Criteria ◽  
Model Systems ◽  
Hybrid Heuristic ◽  
Meta Model ◽  
Multiple Criteria Evaluation ◽  
Automatic Matching

Nowadays, designing and building computer systems has become increasingly difficult; this is essentially due to the great number of existing solutions. This article proposes a hybrid heuristic allowing the connection between meta-models of different systems, which will allow the generation between models conforming to these connected meta-models. First, this article presents the architecture of the generative matching approach named generative automatic matching (GAM), then is introduced an important part of this approach, a hybrid heuristic allowing the matching between the meta-models. Finally, the authors conclude by a multiple criteria evaluation of this approach.

scholarly journals Eliciting Weights of Significance of Criteria for a Monitoring Model of Performance of SMEs for Successful Insolvency Administrator’s Intervention

2019 ◽  
Vol 11 (20) ◽  
pp. 5667 ◽  
Author(s):  
Podviezko ◽  
Kurschus ◽  
Lapinskiene
Keyword(s):  
Major Part ◽  
Prediction Models ◽  
Value Added ◽  
Bankruptcy Prediction ◽  
Multiple Criteria ◽  
Satisfactory Level ◽  
Monitoring Model ◽  
Multiple Criteria Evaluation ◽  
Evaluation And Monitoring ◽  
The Eu

Small and medium-sized enterprises (SMEs) are accounted for as a major part of the economy of the EU in terms of part of the population employed, turnover, value-added, etc. Causes of insolvency of SMEs can be different; they are categorized in the paper. A considerable shift from resolving cases of bankruptcy with the sole aim to satisfy creditors’ rights to augmenting and enhancing liquidation and reorganization procedures evolved interest of the authors in creating efficient bankruptcy prediction models and, in particular, methodologies for evaluation and monitoring of the performance of SMEs. In the paper, we reviewed several initiatives and instruments created by the EU for supporting SMEs. The paper laid a foundation for creating a more comprehensive methodology for evaluation of the state of a firm undergoing the process of reorganization. A hierarchy structure of criteria for the evaluation of SMEs was used in the paper; methodologies for eliciting weights of importance of criteria from experts and gauging the level of concordance of opinions of experts were applied. Resulting weights of criteria of performance of an insolvent SME were obtained; the importance of the managerial category of criteria was revealed. Prominent features of hierarchy structures and methodology of using the structure for calculating ultimate weights were described and demonstrated. Gauging concordance of opinions of experts revealed a satisfactory level of concordance of opinions of experts; this allowed to prepare the ultimate weights of criteria for multiple criteria evaluation of SMEs for further research.

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