Design scheme selection of railway freight car using a fuzzy analytic hierarchy process

  • Authors:
  • Yong-Hua Li

  • Affiliations:
  • School of Mechanical Engineering, Dalian Jiaotong University, Dalian, Liaoning, China

  • Venue:
  • FSKD'09 Proceedings of the 6th international conference on Fuzzy systems and knowledge discovery - Volume 4
  • Year:
  • 2009

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Abstract

Design scheme selection of railway freight car is a multiple criteria decision-making (MCDM) problem which includes fuzzy and uncertain factors. In order to obtain the optimal alternative in the decisionmaker judgment, a model of combining fuzzy set theory with an analytic hierarchy process (AHP) is proposed. Using the triangular fuzzy numbers as a pair-wise comparison scale derives the priorities of different selection criteria and attributes. Adopted fuzzy prioritization method uses fuzzy pair-wise comparison judgments rather than exact numerical values of the comparison ratios and transforms the initial fuzzy prioritization problem into a non-linear program. As an example, three design schemes were compared and evaluated. The case study shows that the proposed method is a simple and effective tool for treating the uncertainty problems.