Study on the Maintenance Capacity of “Man-Machine System” Based on Fuzzy Comprehensive Evaluation

2012 ◽  
Vol 203 ◽  
pp. 479-483
Author(s):  
Yong Jun Sun ◽  
Yi Qu
Keyword(s):  
Complex System ◽  
Quantitative Analysis ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Fuzzy Mathematics ◽  
Machine System ◽  
The Core ◽  
Evaluation Algorithm ◽  
The Stability ◽  
Index Weight

This paper, in accordance with the maintenance capacity of “Man-Machine System”, holds the core of the “Man-Machine System” and employs the analysis methods of the complex system, brings forward the model of the three-layer comprehensive evaluation based on fuzzy mathematics, then brings out the methods of the index weight and studies the maintenance capacity’s evaluation algorithm on the foundation of the quantitative analysis. In the last it gives the application of the model and algorithm by using the instances and studies the changing maintenance capacity including the stability and the undulation, which provides one thought for scientifically evaluating the maintenance capacity of “Man-Machine System”.

Fuzzy comprehensive evaluation method for integral stability of box girder with corrugated steel webs

2021 ◽  
pp. 1-14
Author(s):  
Bo Xu ◽  
Chuanxi Li ◽  
Yiqing Zhang
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Box Girder ◽  
Fuzzy Comprehensive Evaluation Method ◽  
Comprehensive Evaluation Method ◽  
Overall Stability ◽  
Corrugated Steel Web ◽  
The Stability ◽  
Index Weight

The traditional stability evaluation method of corrugated steel web box girder ignores the calculation of evaluation index weight, which leads to large deviation of evaluation results. Therefore, a new fuzzy comprehensive evaluation method for the overall stability of box girder with corrugated steel webs is proposed. According to the structural characteristics of corrugated steel web box girder, the stability coefficient of corrugated steel web box girder is calculated, and the stability calculation index of corrugated steel web box girder is obtained. In this paper, the constraint equation of bridge instability process is introduced, and Midas civil software is used to simulate the instability of box girder with corrugated steel webs during bridge construction. Based on this, the instability of the bridge is analyzed, the index weight of the anti-instability ability of the box girder with corrugated steel webs under different loads is calculated, and the overall stability of the box girder with corrugated steel webs is evaluated by fuzzy comprehensive evaluation. The test results show that this method can accurately evaluate the overall stability of box girder with corrugated steel webs, and the calculation accuracy is increased by 32.7% and the calculation speed is increased by about 1.62 seconds. It has high credibility and authenticity.

Application of Fuzzy Comprehensive Evaluation Based on Entropy Method in the General Layout and Transportation Design Optimization

2011 ◽  
Vol 94-96 ◽  
pp. 210-213
Author(s):  
Qiu Ping Wang ◽  
Yan Hua Yu
Keyword(s):  
Program Evaluation ◽  
Information Entropy ◽  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Entropy Method ◽  
Evaluation Index ◽  
Fuzzy Mathematics ◽  
Objective Method ◽  
Fuzzy Weight

Based on the design of general layout and transportation optimization of a variety of factors, established a program evaluation system, the theory of fuzzy mathematics general layout and transportation design a comprehensive evaluation. For the fuzzy weight of each factor to determine the application of an objective method of empowerment from the perspective of information entropy to determine the factors enabling the weight of each evaluation index, fuzzy comprehensive evaluation of the results obtained. To detail with an example.

Sustainable Comprehensive Evaluation of Highway Construction Project Based on ANP-FCE Model

2013 ◽  
Vol 639-640 ◽  
pp. 1269-1274
Author(s):  
Zhi Hua Hu ◽  
Lei Zhang
Keyword(s):  
Comprehensive Evaluation ◽  
Construction Project ◽  
Highway Construction ◽  
Fuzzy Comprehensive Evaluation ◽  
Analytic Network Process ◽  
Network Process ◽  
Index Weight

Using Analytic Network Process (ANP) to determine the index weight of sustainable comprehensive evaluation of highway construction project and Fuzzy Comprehensive Evaluation (FCE) to evaluate synthetically，the ANP-FCE model is discussed. The method of sustainable comprehensive evaluation of highway construction project based on the ANP-FCE model is proposed, and the applicability in sustainable comprehensive evaluation of highway construction project is verified.

Rationality Fuzzy Comprehensive Evaluation of Mining Ventilation System

2013 ◽  
Vol 710 ◽  
pp. 808-811
Author(s):  
Lei Gang Miao ◽  
Yuan Yuan Niu ◽  
Dian Bao Yu
Keyword(s):  
Influence Factor ◽  
Comprehensive Evaluation ◽  
Ventilation System ◽  
Fuzzy Comprehensive Evaluation ◽  
Mine Ventilation ◽  
Fuzzy Mathematics ◽  
Widespread Application ◽  
Fuzzy Characteristic ◽  
Mathematics Method

Each influence factor had the obvious fuzzy characteristic in view of the mine ventilation system, the utilization fuzzy mathematics method has established one kind of new ventilation system rationality fuzzy mathematics judgment model, carried on the synthesis judgment to the ventilation system rationality, this judgment method could give the quota description direct-viewing to the system rationality. Finally, take some mining bureau's four ore as the example, has confirmed the model rationality. This method may operational strong, the effect be better, may in the general mine ventilation system appraisal the widespread application.

scholarly journals Routing Algorithm of Wireless Sensor Network and Robustness Analysis Based on Fuzzy Mathematics

2017 ◽  
Vol 13 (12) ◽  
pp. 85 ◽  
Author(s):  
Ying Xiang ◽  
Miaochao Chen ◽  
Xiaohong Zhuang ◽  
Xiaoxing Li
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Routing Algorithm ◽  
Robustness Analysis ◽  
Fuzzy Comprehensive Evaluation ◽  
Wireless Sensor ◽  
Fuzzy Mathematics ◽  
Comprehensive Evaluation Method

<p style="margin: 1em 0px;"><span lang="EN-GB"><span style="font-family: Times New Roman; font-size: medium;">In order to reduce the energy consumption and enhance the robustness of wireless sensor network (WSN), this paper proposes a hierarchical clustering routing algorithm based on fuzzy mathematics (HCRAFM). To make a comprehensive analysis of WSN, it is also necessary to detect the robustness of the network. Facing the multiple random variables, the traditional robustness detection models assume that all nodes have the same weight, making it impossible to quantify the analysis indices or obtain accurate results. Thus, the fuzzy mathematics theory was introduced to the WSN robustness detection, forming a fuzzy comprehensive evaluation method. The simulation results show that the HCRAFM strikes a load balance between WSN nodes, extends the life cycle of each node, and prolongs the service life of the network. In addition, the proposed algorithm is proved to have sound robustness and strong applicability.</span></span></p>

Fishing Vessel Safety Evaluation Algorithm Based on Cloud Model

2014 ◽  
Vol 644-650 ◽  
pp. 2194-2197
Author(s):  
Jie Yao ◽  
Zhao Lin Wu ◽  
Zhi Yuan Xu ◽  
Yu Qing Ren
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Cloud Model ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Fishing Vessel ◽  
Comprehensive Evaluation Method ◽  
Droplet Distribution ◽  
Fishing Vessels ◽  
Evaluation Algorithm

The safety evaluation of fishing vessels is a system and uncertain problem. A fishing vessel safety evaluation algorithm based on cloud model was proposed in this paper. Firstly, we established index system and weights by the AHP; Secondly, the cloud generator completed the conversion between qualitative and quantitative indicators; Thirdly, the evaluation cloud model was achieved by the comprehensive cloud algorithm; Finally, the forward cloud generator restored the droplet distribution. Compared with the fuzzy comprehensive evaluation method, the experimental results show that our work is effective and accurate.

The Application of Fuzzy Comprehensive Evaluation to Cutting Sequences' Optimization of Multi-Feature Part

2011 ◽  
Vol 188 ◽  
pp. 662-666
Author(s):  
Zhe Li ◽  
Min Li Zheng ◽  
Jia He ◽  
Jun Jian Ming
Keyword(s):  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Machining Process ◽  
Fuzzy Mathematics ◽  
Cutting Sequences ◽  
Comprehensive Evaluation Model ◽  
Science Management ◽  
Cutting Sequence ◽  
Set Up

The fuzzy comprehensive evaluation which is one of the important embranchment of fuzzy mathematics is often used in the field of science management and decision, but less used in the machining process. Based on the fuzzy mathematical theory, we put forward the establishing process of fuzzy comprehensive evaluation model, and then set up the three-grade fuzzy comprehensive evaluation model of cutting sequence. Three cutting sequences of multi-feature bearing chock component have been evaluated, the evaluation results have verified the rationality and trueness of the model. The application and dissemination of the fuzzy comprehensive evaluation will have active significance in the machining process.

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