Quantitative Analysis and Evaluation of Tractor Gear Shifting Comfort with Entropy-based Matter-element Model

2019 ◽  
Vol 13 ◽  
Author(s):  
Wei Jang ◽  
Hongmei Xu ◽  
Wenjie Zhong ◽  
Jiajun Dong ◽  
Yujun Shang
Keyword(s):  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Subjective Evaluation ◽  
Evaluation Process ◽  
Element Model ◽  
Analysis Model ◽  
Element Analysis ◽  
Multi Index ◽  
Action Units ◽  
Matter Element Model

Background: The gear shifting comfort of tractors is affected by various factors, which make it extremely difficult to accurately and quantitatively describe the handling comfort through objective physical quantities. However, the calculation and evaluation process of the index of manipulation comfort mostly involves the operation of matrix form, and the numerical operation is one of the powerful core functions of MATLAB. Objective: This study aims to take the gear shifting process of tractors as the research object and uses MATLAB /GUI toolbox to develop the shifting comfort evaluation system, thereby improving the gear shifting comfort. Methods: The procedures of holistic assessment, element subdivision, and detailed tracking were adopted as the analysis method. Thus, the operation process was divided into four action units, including pedal free travel, separation travel, gear change, and joint travel, according to the concept of “differentiation” and manipulation behavior. Based on the matter-element model, the process of clutch operation was described by coupling of action elements. The closeness between the actual model and the target model was used to measure the degree of handling comfort. Then, the results were compared with those of the multi-index comprehensive evaluation. Results: It was shown that the separation travel has the greatest influence on the handling comfort. Taking vehicle 1 as an example, the matter-element analysis model provided the overall comfort value of the carrier (0.8359), which is close to the value of the multi-index comprehensive evaluation (0.8156). Moreover, the evaluation results presented the score of each action unit, which could directly reflect the action units with the lowest level of comfort. The evaluation results of matter-element model can not only reflect the handling comfort of different components, but also locate the negative aspects of the whole operation. Conclusion: This method is effective in overcoming the ambiguity of the concept of comfort and the generality of overall evaluation as well as avoiding the uncertainty of subjective evaluation.

scholarly journals Research on Comprehensive Evaluation Method of Transformer Noise Based on AHP Matter Element Model

2021 ◽  
Vol 2137 (1) ◽  
pp. 012057
Author(s):  
Yong Li ◽  
Laibin Yin ◽  
Ping Heng
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Element Model ◽  
Comprehensive Evaluation Method ◽  
Condition Evaluation ◽  
Noise Evaluation ◽  
Comprehensive Evaluation System ◽  
Matter Element Model ◽  
Element Theory

Abstract Aiming at the problem of transformer condition evaluation, a comprehensive evaluation system for transformer noise is constructed according to the mechanism of transformer noise generation and propagation. Using matter-element theory and AHP, a state analysis method for transformer noise evaluation based on AHP matter-element model is proposed. The case analysis proves that the method is feasible for non-contact evaluation of transformer faults, and can accurately evaluate the state of the transformer, providing guidance for the operation and maintenance of the transformer.

Research on the Multi-Index Comprehensive Evaluation Method of Electromechanical Products’ Disassembly

2012 ◽  
Vol 479-481 ◽  
pp. 2188-2193 ◽  
Author(s):  
Ji Bin Jiang ◽  
Shou Jin Zeng ◽  
Ming San Xu
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Process ◽  
Complex Problem ◽  
Classification Model ◽  
Cost Calculation ◽  
Multi Index ◽  
Comprehensive Evaluation Method ◽  
Electromechanical Products

Considering that the disassembly performance of electromechanical products is determined by multi factors, the multi-index comprehensive evaluation method research is carried out to solve the complex problem of disassembly analysis. The theoretical minimum parts number discrimination model, the disassembly time classification model and the disassembly cost calculation model are proposed in this paper. A comprehensive evaluation system for disassembly is constructed and the evaluation process is established at the angle of evaluation tools developing. Finally, a flywheel institution is evaluated by using the proposed method and the feasibility and practicality of this method is verified.

Research on Economic Benefit Evaluation of Transportation Enterprise Based on Extension Matter-Element Model

2014 ◽  
Vol 587-589 ◽  
pp. 2063-2067
Author(s):  
Xin Jie Zhang
Keyword(s):  
Economic Benefit ◽  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Element Model ◽  
Financial Benefit ◽  
Benefit Evaluation ◽  
The Poor ◽  
Comprehensive Level ◽  
Operation Status ◽  
Matter Element Model

According to the operation status of the transportation enterprise in our country, choose financial benefit, asset operational condition, debt paying ability and development ability as a benefit evaluation system. In order to achieve the goal of comprehensive evaluation, the Extension Matter-element Model is applied to the benefit evaluation field. And correlation function is used to represent the benefit of transportation enterprise.Through the comprehensive level evaluation of transportation enterprise benefit, we analyze the reasons for the poor financial results of enterprise and corresponding improving measures are put forward according to the results of the evaluation.

Analysis and Measure of Coal and Gas Outburst Based on Matter Element Model

2013 ◽  
Vol 329 ◽  
pp. 79-86
Author(s):  
Jun Tao Li ◽  
Shi Chao Wang
Keyword(s):  
Element Model ◽  
Weight Coefficient ◽  
Coal And Gas Outburst ◽  
Analysis Model ◽  
Analytic Hierarchy ◽  
Element Analysis ◽  
Gas Outburst ◽  
Degree Of Risk ◽  
Analytic Hierarchy Process Method ◽  
Matter Element Model

For the problem of coal and gas outburst danger prediction, this paper combines the Extenics theory and analytic hierarchy process method to construct the matter element analysis model. It uses AHP to determine the coal and gas outburst weight coefficient of each factor, and uses the euthenics method to establish the degree of risk of coal and gas outburst prediction model. It highlights the degree of risk prediction by a mining seam of coal and gas, and obtains the degree of risk to prove the feasibility of the method.

scholarly journals Subjective Product Evaluation System Based on Kansei Engineering and Analytic Hierarchy Process

Symmetry ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1340 ◽  
Author(s):  
Yaxue Zuo ◽  
Zhenya Wang
Keyword(s):  
Evaluation System ◽  
Comprehensive Evaluation ◽  
Subjective Evaluation ◽  
Reliability And Validity ◽  
Objective Evaluation ◽  
Product Evaluation ◽  
Kansei Engineering ◽  
Analytic Hierarchy ◽  
Evaluation Indexes ◽  
Hierarchy Process

Product evaluation is very important for product improvement and development, and subjective product evaluation determines customer’s evaluation of products to some extent, so the purpose of this study is to establish a reasonable subjective product evaluation system. In this study, we comprehensively determine the evaluation indexes based on Kansei engineering (KE), establish an overall product evaluation system by using analytic hierarchy process (AHP), and establish the subjective product evaluation system by classifying the evaluation indexes in the overall product evaluation system into “objective evaluation index” and “subjective evaluation index”, removing the objective evaluation indexes, and retaining the subjective evaluation indexes. Additionally, we select some modern chairs as experimental samples to verify the reliability and validity of this subjective product evaluation system by means of questionnaires. The experimental results show that, in this subjective product evaluation system, the subjective evaluation of the product is positively correlated with the “favorite” level of the product in comprehensive evaluation, and negatively correlated with the “least favorite” level of the product in comprehensive evaluation, indicating that this subjective product evaluation system realizes a symmetry between subjective product evaluation and comprehensive product evaluation. Therefore, it can be concluded that this subjective product evaluation system based on KE and AHP proposed in this study has reliability and validity, and can be used for product evaluation to judge the popularity of products and enhance the competitiveness of products.

Application of Fuzzy Matter-Element Model Based on Cooperative Game Weight in Evaluation of Groundwater Carrying Capacity

2012 ◽  
Vol 518-523 ◽  
pp. 4135-4138 ◽  
Author(s):  
Yan Kang ◽  
Huan Jie Cai ◽  
Song Bai Song
Keyword(s):  
Cooperative Game ◽  
Carrying Capacity ◽  
Cooperative Game Theory ◽  
Comprehensive Evaluation ◽  
Groundwater Resources ◽  
Simple Algorithm ◽  
Element Model ◽  
Shaanxi Province ◽  
Matter Element Model ◽  
Element Theory

A fuzzy matter-element evaluation modeling based on cooperative game weight (FME-CGW) is presented in this paper. Based on cooperative game theory, authors introduce a cooperative game weight which embodying an idea of competition and coordination among different weight methods. Based on the cooperative game weight, employing fuzzy matter-element theory and Hamming approach degree, the authors develop FME-CGW model. The derived model is applied to assess the groundwater resources carrying capacity in Guanzhong plain in Shaanxi province. The results are reasonable and satisfactory by comparing to other methods. The study of this practical example shows that the modeling presented in this paper is a new method with simple algorithm and strong practicability, which can be adopted to analysis various comprehensive evaluation issues.

The Research and Application of Masonry Structure Reliability Rating Method Based on Extenics

2013 ◽  
Vol 291-294 ◽  
pp. 1029-1038
Author(s):  
Ming Liu ◽  
Bao Feng Song ◽  
Daniel Dias ◽  
Jing Pan
Keyword(s):  
Structural Reliability ◽  
Comprehensive Evaluation ◽  
Element Model ◽  
Assessment Method ◽  
Masonry Structure ◽  
Evaluation Index System ◽  
Structure Reliability ◽  
Rating Method ◽  
Matter Element Model ◽  
Correlation Factors

Aiming at masonry structure housing, establish the structure reliability evaluation index system. Subsidiary factors index dimensionless processing, the traditional matter-element model is analyzed, and based on this, the article puts forward an improved correlation functions, establish correlation function of the correlation factors of the index layer. Consider the weight coefficients of members,gave the extension index,combining analysis of the structural member reliability and extension comprehensive evaluation of the integral structural reliability, establish the masonry structure housing reliability assessment method framework. And prove the feasibility of this method through engineering examples.

Research on Comprehensive Evaluation of Service Capability of the Third-Party Logistics Suppliers with AHP and Gray Entropy Theory

2021 ◽  
Author(s):  
Jun Li ◽  
Xuhua Pan ◽  
Mingxiao Li ◽  
Gang Wang ◽  
Zhixin Zhang
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Evaluation Process ◽  
Third Party ◽  
Third Party Logistics ◽  
Comprehensive Service ◽  
Service Capability ◽  
Capability Evaluation

To solve the problem of third-party logistics (3PL) evaluation and selection, a hybrid method with AHP and gray theory is proposed. First, the literature review about the 3PL evaluation method and technology is introduced. Furthermore, TPL comprehensive service capability evaluation system is established from aspects of service, time, cost and enterprise qualification. Besides, a comprehensive evaluation model process with gray entropy and AHP is introduced. Finally, a detailed evaluation process of 3PL supplier service capability in F company is introduced by an example, and the results show that the evaluation method in the paper is helpful to choose the TPL for logistics outsourcing.

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