Determination of Equipment Maintenance Methods for Maglev Train Based on Fuzzy Comprehensive Evaluation

2018 ◽  
Author(s):  
Wang Ping ◽  
Long Zhiqiang ◽  
Dou Fengshan ◽  
Mingda Zhai
Keyword(s):  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Equipment Maintenance ◽  
Maglev Train

Product Bionics Form Design Based on Users’ Kansei Image

2010 ◽  
Vol 37-38 ◽  
pp. 910-914 ◽  
Author(s):  
Lei Ding ◽  
Jian Ming Che ◽  
Xiao Fei Dong
Keyword(s):  
Clustering Analysis ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Differential Method ◽  
Kansei Engineering ◽  
Engineering Theory ◽  
Form Design ◽  
Form Features ◽  
Basic Standard

Based on users’ kansei image and kansei engineering theory, a method on product bionics form design is presented. Firstly, users’ kansei information about product and bionics objects is extracted from semantic differential method, which is the basic standard for determination of the best bionics object. Then by adopting clustering analysis and fuzzy comprehensive evaluation, the product form features and bionics objects’ main features are acquired and combined to design products. Finally, the optimal design is selected through comprehensive evaluation. As an example, case of intelligent electric rice cooker design indecates that this method is valid and practical.

The Fuzzy Comprehensive Evaluation of the Self-Conditioning of Hydrophilic Fixed-Abrasive Pad

2018 ◽  
Vol 29 ◽  
pp. 26-33
Author(s):  
Zhi Lan Ju ◽  
Yong Wei Zhu ◽  
Fu Bao Zhang
Keyword(s):  
Comprehensive Evaluation ◽  
Removal Rate ◽  
Physical And Mechanical Properties ◽  
Fuzzy Comprehensive Evaluation ◽  
The Self ◽  
Fuzzy Evaluation ◽  
The Matrix ◽  
Fixed Abrasive Pad ◽  
Fixed Abrasive

The self-conditioning of hydrophilic fixed abrasive lapping based on the principle of two-body (pad-wafer) abrasion has great importance on the MRR (material removal rate) of wafer. The physical and mechanical properties of pad were taken as set of available alternatives. Fuzzy comprehensive evaluation principle was applied to establish a model for the self-conditioning of FAP. The swelling ratio, the slurry abrasive ratio and pendulum hardness were selected to be the set of alternatives for self-conditioning evaluations in this paper .The five types of matrix formations of fixed-abrasive pad were prepared, and the matrix were ranked in order of comprehensive evaluation index. The results show that the fuzzy evaluation is rational. The tests of MRR verified the self-conditioning of FAP. The machining of pad can be evaluated in advance of lapping processes. Moreover, the self-conditioning evaluation will be important reference for determination of FAP during choosing the matrix formations.

scholarly journals Risk Analysis Based on AHP and Fuzzy Comprehensive Evaluation for Maglev Train Bogie

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Chengxin Fan ◽  
Fengshan Dou ◽  
Baiming Tong ◽  
Zhiqiang Long
Keyword(s):  
Comprehensive Evaluation ◽  
Fuzzy Theory ◽  
Fuzzy Comprehensive Evaluation ◽  
Risk Tolerance ◽  
Weak Links ◽  
Risk Level ◽  
Maglev Train ◽  
Analytic Hierarchy ◽  
Risk Sources ◽  
Hierarchy Process

The maglev bogie is the key subsystem for maglev train security. To ensure life and property security, it is essential to evaluate its risk level before its operation. In this paper, a combinational method of analytic hierarchy process and fuzzy comprehensive evaluation is proposed to assess hazards in a complex maglev bogie system associated with multiple subsystems’ failures. The very comprehensive identification of risk sources has been done by analyzing the structure of maglev bogie. Furthermore, based on the fuzzy theory, linguistic evaluation set is classified according to risk tolerance. The score of each risk factor is obtained by weighted sum of the result of fuzzy comprehensive evaluation. Our results show that the degree of maglev bogie’s risk is within the range of acceptability. The merits of this work facilitate finding the weak links and determining the maintenance of maglev bogie system.

Detection for Approximately Duplicate Records Based on Fuzzy Comprehensive Evaluation

2013 ◽  
Vol 397-400 ◽  
pp. 2464-2468
Author(s):  
Li Juan Zhou ◽  
Zhe Xiao
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Massive Data ◽  
Data Set ◽  
Comprehensive Evaluation Method ◽  
Attribute Weight ◽  
Massive Data Set ◽  
Composition Factors

To solve the problem of attribute weight determination in the approximately duplicate records, we put forward a method based on fuzzy comprehensive evaluation to get attribute weight in data set. We first perform an analysis of the composition factors of attribute. Then we carry out an evaluation of their rank. Finally, we make a determination of the attribute weight using the fuzzy comprehensive evaluation method, on the basis of which the approximately duplicate records are detected. Theoretical analysis and experimental results show that the method can objectively determine all attributes weight, and effectively detect the approximately duplicate records in massive data set.

The Life Cycle Management and Evaluation of Equipment Maintenance Quality

2013 ◽  
Vol 397-400 ◽  
pp. 856-861
Author(s):  
Zhen Zhang ◽  
Jun Chen ◽  
Bin Peng ◽  
Yong Gang Zuo
Keyword(s):  
Life Cycle ◽  
High Efficiency ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Life Cycle Management ◽  
Equipment Maintenance ◽  
Maintenance Activity ◽  
Comprehensive Evaluation Model ◽  
Multi Level

The maintenance activity of the equipment is the basis and supports that ensure the intact rate of the equipment and adequately giving play to its capability, to insure the high efficiency of maintenance activity, it is imperative that implement the life cycle management and many positions evaluation for maintenance quality. Firstly, to discuss the countermeasure and method of the life cycle management of maintenance quality from design and application and maintenance stages; secondly, to advance the principle of equipment maintenance quality; lastly, to establish the multi-level fuzzy comprehensive evaluation model of equipment maintenance quality.

Applications of Fuzz Comprehensive Evaluation in Display and Control System of Armored Vehicle

2013 ◽  
Vol 341-342 ◽  
pp. 876-879
Author(s):  
Jun Feng Nie ◽  
Wei Ping Liu ◽  
Jin Yi ◽  
Wei Guo Cao
Keyword(s):  
Control System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Point Of View ◽  
Fuzzy Evaluation ◽  
Overall Evaluation ◽  
Armored Vehicle ◽  
And Control

In this paper, from the point of view of Man-machine system engineering, the evaluation method of the display and control system is studied based on fuzzy comprehensive evaluation. The determination of the factors system, the weighted value of the factors, the fuzzy evaluation matrixes and the method of overall evaluation is preliminarily expounded. At last, an example is given to show that the proposed method is effective and applicable. It provides a theoretic reference to the integrated display console interface of armored vehicle developing and designing.

Sign in / Sign up

Export Citation Format

Share Document