KANO quality attribute classification method based on trapezoidal fuzzy number similarity measures

2017 ◽  
Vol 33 (5) ◽  
pp. 2869-2876 ◽  
Author(s):  
Xiaofei Li
Keyword(s):  
Fuzzy Number ◽  
Similarity Measures ◽  
Classification Method ◽  
Quality Attribute ◽  
Trapezoidal Fuzzy Number ◽  
Attribute Classification

scholarly journals Modeling and Simulation of Emergency Service Facilities Location Problem Under Fuzzy Environment

2014 ◽  
Vol 8 (1) ◽  
pp. 48-52 ◽  
Author(s):  
Zixue Guo ◽  
Meiran Qi
Keyword(s):  
Fuzzy Number ◽  
Emergency Service ◽  
Location Problem ◽  
Set Covering ◽  
Covering Problem ◽  
Trapezoidal Fuzzy Number ◽  
Signed Distance ◽  
Fuzzy Environment ◽  
Facilities Location ◽  
Service Location

The emergency service facilities location is one of the most important issues in the emergency management. This study focused on the location set covering problem (LSCP) for emergency service facilities under fuzzy environment. On the basis of defining the signed distance of trapezoidal fuzzy number, the ranking rules of trapezoidal fuzzy number are defined, the model of emergency service facilities location with fuzzy restraints is proposed, and the solution algorithm for the emergency service location based on the ordering rules of trapezoidal fuzzy number is given. Finally, a numerical simulation is used to illustrate the application of the method, which shows that the algorithm is feasible and advantageous.

Reliability Analysis for Capstan Turret on CNC Lathe

2014 ◽  
Vol 1030-1032 ◽  
pp. 1229-1232
Author(s):  
Shu Meng ◽  
Gui Xiang Shen ◽  
Ying Zhi Zhang ◽  
Li Hui Zhu ◽  
Shu Guang Sun
Keyword(s):  
Failure Analysis ◽  
Reliability Analysis ◽  
Failure Rate ◽  
Fuzzy Number ◽  
Fuzzy Probability ◽  
Fuzzy Information ◽  
Trapezoidal Fuzzy Number ◽  
Cnc Lathe ◽  
Calculation Results ◽  
Failure Tree

Based on failure analysis of CNC lathe capstan turret and building failure tree, according to the fuzzy information provided by the users, engineers and technician, the failure rate is defined as a set of trapezoidal fuzzy number. By means of fuzzy operation, the paper determines the failure fuzzy probability of the capstan turret. By analyzing the calculation results, It proves that this method can be applied to the reliability analysis of CNC lathe capstan turret subsystem, provide a reference for modification design of the capstan turret subsystem.

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