title: Risk evaluation of bogie system based on extension theory and entropy weight method.
abstract: A bogie system is the key equipment of railway vehicles. Rigorous practical evaluation of bogies is still a challenge. Presently, there is overreliance on part-specific experiments in practice. In the present work, a risk evaluation index system of a bogie system has been established based on the inspection data and experts' evaluation. Then, considering quantitative and qualitative aspects, the risk state of a bogie system has been evaluated using an extension theory and an entropy weight method. Finally, the method has been used to assess the bogie system of four different samples. Results show that this method can assess the risk state of a bogie system exactly.
authors.affiliation: School of Mechanical Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China ; State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China.
authors.forename: Yanping
authors.initials: Y
authors.lastname: Du
authors.affiliation: School of Mechanical Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China ; State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: School of Electromechanical and Vehicle Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
authors.forename: Xiaogang
authors.initials: X
authors.lastname: Zhao
authors.affiliation: School of Mechanical Engineering, Beijing Institute of Graphic Communication, Beijing 102600, China.
authors.forename: Xiaohui
authors.initials: X
authors.lastname: Wang
mesh_terms: D000056:Accident Prevention; D019277:Entropy; D006801:Humans; D008962:Models, Theoretical; D011890:Railroads; D018570:Risk Assessment; D012449:Safety; D014894:Weights and Measures