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fuzzy evaluation of weld quality based on Matlab

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China Welding 2014年第2期23卷 67-71页

作者： Yao Ping Xue Jiaxiang Wang Leilei Zhu Qiang College of Electromechanical Engineering Guangdong Polytechnic Normal University Guangzhou 510635 School of Mechanical & Automotive Engineering South China University of Technology Guangzhou 510640

Based on standards and the expertise, 10 indicators such as crack, reinforcement and splash, etc. are selected for welds quality description. The indicators are classified into three categories： appearance defects, shape defects and weld defects, and corresponding fuzzy evaluation sets are designed. Membership functions of each indicator are determined with fuzzy inference system （FIS） editor in Matlab based on the actual welding experience. A two-stage fuzzy evaluation model for weld quality is established in Simulink. Finally, the model is tested through evaluating 7 different types of welds. The results show that fuzzy evaluation calculation can be simplified by combining Simulink with Matlab-FIS, and the evaluation results are more accurate and objective compared with the experts＇ subjective e＇, iluation.

关键词： weld quality defects fuzzy evaluation fuzzy inference system

Assessment on soil fertility of Dongting Lake wetland area (China) based on GIS and fuzzy evaluation

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Journal of Central South University 2011年第5期18卷 1465-1472页

作者：李忠武黄金权李裕元郭旺朱剑峰 College of Environmental Science and Engineering Hunan University Key Laboratory of Environmental Biology and Pollution Control Ministry of EducationHunan University Institute of Subtropical Agriculture Chinese Academy of Sciences

Using soil data of the Second National Field Survey,the soil fertility of wetland ecosystem of Dongting Lake was evaluated by using the technology of GIS and method of fuzzy *** with the wetland actuality of Dongting Lake and particularity of paddy,seven factors (including soil organic matter,total nitrogen,total phosphorus,total potassium,available phosphorus,available potassium,and pH value),closely related with soil fertility,were chosen to establish the index system of synthetical *** on the effect degree of each selected index on soil fertility,a judgment matrix was built,and the weight coefficient was determined by the method of correlation ***,under the support of the spatial analysis module of GIS (Geographic Information System),the spatial distribution properties of soil fertility in wetland ecosystem of Dongting Lake were *** results show that the soil fertility of Dongting Lake wetland ecosystem is not very good,and the area of type III and type IV achieves 69.8%.As a result,many countermeasures should be taken to improve the soil *** for the spatial properties,the soil fertility level of central and west Dongting Lake is much higher than that of north and south *** soil fertility of paddy field surpasses that of red soil,and the contents of soil organic matter and total nitrogen in paddy field are large.

关键词： Dongting Lake wetland ecosystem soil fertility fuzzy evaluation geographic information system (GIS)

fuzzy evaluation on Food Safety Based on Improved Membership Degree Transformation Algorithm

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Fuzzy Evaluation on Food Safety Based on Improved Membership...

2010 International Conference on Advanced Measurement and Test (AMT 2010)

作者： Chenghua Shi 1 2 a Yapeng Wang 1 b 1 College of Economics&Management Huazhong Agricultural University P.R.China 430070 2 School of Economics and Management Hebei University of Engineering P.R.China 056038

It needs a scientific and complete index system for a comprehensive evaluation on the safety of foods in some region or some *** the use of advanced evaluation technologies is also an important work of food safety *** paper eliminated the redundant data in index membership for object classification by defining distinguishable weight and extracted valid values to compute object *** improved algorithm of membership degree transformation includes three calculation steps which can be summarized as"effective,comparison and composition",which is denoted as M（1,2,3）.The paper applied the new algorithm in fuzzy evaluation on the safety of *** results show the validity of the improved model and the model can achieve the dynamic evaluation of the safety of foods in some region or some country.

关键词： food safety fuzzy evaluation analytic hierarchy process membership degree transformation improved algorithm

New LCA Approach with fuzzy evaluation

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Journal of Beijing Institute of Technology 2001年第1期10卷 56-62页

作者：张之敬王信义曹默北京理工大学机械工程与自动化学院北京100081 北方工业大学工业设计系北京100041

A quantitative and comprehensive method of product life cycle assessment(LCA) with fuzzy theory is developed, which will help designers to select the optimum design scheme for product life cycle design(LCD). Based on the theory of multiple attribute decision making, an algorithm of comprehensive and comparative evaluation for product environmental adaptability is presented. A program is built and used in an example of design improvement. The result shows that the proposed method and algorithm are practical and effective to the development of green products.

关键词： life cycle assessment(LCA) fuzzy evaluation environment adaptability life cycle design(LCD) green products

The fuzzy evaluation of Environmental Performance in Green Supply Chain

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International English Education Research 2015年第5期 11-13页

作者： Kun Liu School of Economics and Commerce South China University of Technology Guangzhou China

Green supply chain is one of the trends of industry development. And performance measurement is the key to implementing the supply chain. So it is necessary to evaluate the environmental performance of supply chain .According to the connotation of green supply chain and the standards of environmental management, this paper designs green performance measurement systems which is composed of four main factors such as waste emissions and exposure hazard, resource utilization, product recovery, and environmental reputation. And the authors delve deeply these factors so that it forms a two-level measurement system. Then the effect on the traditional performance measurement of supply chain is studied after taking greening to the supply chain leveL At last the authors apply the method of multi-level fuzzy judgment to the environmental performance measurement system. An example is given to show the judgment process.

关键词： greening supply chain environmental performance performance measurement system fuzzy evaluation

Machine tool selection based on fuzzy evaluation and optimization of cutting parameters

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Journal of Measurement Science and Instrumentation 2015年第4期6卷 384-389页

作者：张保平关世玺张博王斌田甜中北大学机电工程学院山西太原030051 北方通用动力集团有限公司山西大同037036

The paper analyzes the factors influencing machine tool selection. By using fuzzy mathematics theory, we establish a theorietical model for optimal machine tool selection considering geometric features, clamping size, machining range, machining precision and surface roughness. By means of fuzzy comprehensive evaluation method, the membership degree of machine tool selection and the largest comprehensive evaluation index are determined. Then the reasonably automatic selection of machine tool is realized in the generative computer aided process planning （CAPP） system. Finally, the finite element model based on ABAQUS is established and the cutting process of machine tool is simulated. According to the theoretical and empirical cutting parameters and the curve of surface residual stress, the optimal cutting parameters can be determined.

关键词： fuzzy evaluation machine selection computer aided process planning(CAPP) parameter optimization

Research on Financial Software Selection Decisions Based on a fuzzy evaluation Model

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Research on Financial Software Selection Decisions Based on ...

作者： Changyan Shao Sheng Xu Xiaojia Wang School of Management Hefei University of Technology

Appropriate financial software is the foundation of strengthening the enterprise information *** enterprises,choosing appropriate financial software is not only conducive to improving the efficiency and profitability of business processing,but also to ensuring the authenticity of financial information and the accuracy of *** this paper,we first established an evaluation index system of financial software evaluation,and then combined two-dimensional uncertain linguistic variables（2 DULV） and grey relational analysis（GRA） to evaluate and select the financial ***,the effectiveness of the proposed 2 DULV-GRA model is verified by an example of an *** fuzzy evaluation model proposed in this paper allows decision-makers to express uncertainty,which provides a reference for the enterprise decision-making.

关键词： Financial software fuzzy evaluation 2DULV gray relations analysis

Multi-targets Assignment Method Based on fuzzy evaluation and Improved Particle Swarm Algorithm

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Multi-targets Assignment Method Based on Fuzzy Evaluation an...

第43届中国控制会议

作者： Fan Dingyu Lu Qing Zhou Jun Fang Dongyang Institute of Precise Guidance and Control Northwestern Polytechnical University Shanghai Electro-Mechanical Engineering Institute

Research on intelligent decision-making methods is carried out focus on complex situations such as multiple participants,multiple influencing factors,and large uncertainties in multi targets and multi interceptors combat *** interception strategies are coded based on discrete particle swarm *** with fuzzy analytic hierarchy process,various uncertain factors in multi to multi scenarios are comprehensively considered so as to get a typical combat strategy evaluation index *** an intelligent multi-target allocation strategy can be obtained and rapid decision-making in a dynamic situation can be *** this basis,coordinated operations are carried out to complete effective interception of multiple *** results show that the intelligent decision-making strategy designed in this paper can make rapid decisions based on the real-time motion state of the interceptors and the targets,which shortens the interceptions time and enables the interceptors to have a greater advantage in the process of carrying out the interception *** some interceptors fail,remained interceptors can be reassigned by intelligent decision-making method so as to ensure the completion of the interception task.

关键词： Multiple targets Multiple interceptors Multiple-target Assignment Particle Swarm Optimization fuzzy evaluation

A Model Realization of fuzzy evaluation Based on J2EE

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A Model Realization of Fuzzy Evaluation Based on J2EE

2010 IEEE 2nd Symposium on Web Society

作者： LIU Lianhuan Dept.of Computer Science and Technology Nanjing University of Technology,Nanjing 210009 Nanjing,China Wang Liang Dept.of Computer Science and Technology Nanjing University of Technology,Nanjing 210009 Nanjing,China

＜正＞This paper puts forward a fuzzy synthetic evaluation mode based on J2EE,This web method solves the problem of combination between qualitative and quantitative thus makes the evaluation method more comprehensive,rational, and *** the same time,this model can also be applied to other similar evaluation *** the fuzzy evaluation problem in reality,this paper described the realization for fuzzy evaluation *** model system adopted typical MVC Framework,which combined with fuzzy evaluation *** the realization of fuzzy evaluation method is suitable for the Web network environment that has the good flexibility and the *** system takes the student synthetic quality evaluation as the application example,which is a beneficial attempt in fuzzy evaluation by the web pattern.

关键词： fuzzy evaluation MVC J2EE Web