Warship Damage Assessment Method Using Analytical Hierarchy Process and Fuzzy Comprehensive Assessment

2012 ◽  
Vol 6 (21) ◽  
pp. 509-516 ◽  
Author(s):  
Yu Han
Keyword(s):  
Analytical Hierarchy Process ◽  
Damage Assessment ◽  
Assessment Method ◽  
Comprehensive Assessment ◽  
Fuzzy Comprehensive Assessment ◽  
Hierarchy Process

Review of Technical State Assessment for Substructure of Existing Bridge with Mid-Small Span

2011 ◽  
Vol 243-249 ◽  
pp. 1783-1787
Author(s):  
Zhi Wei Huang ◽  
Qiao Huang ◽  
Yuan Ren
Keyword(s):  
Analytical Hierarchy Process ◽  
Evaluation Methods ◽  
State Assessment ◽  
Comprehensive Assessment ◽  
Technical State ◽  
Uncertainty Evaluation ◽  
Fuzzy Comprehensive Assessment ◽  
Research Orientations ◽  
Hierarchy Process ◽  
Process Method

Aiming at state assessment on substructure of the existing bridge with mid-small span, existing main assessing methods are outlined and their merits and shortcomings are commented. The uncertainty evaluation methods, such as uncertain analytical hierarchy process method and fuzzy comprehensive assessment theory, are illuminated to be the trend of new assessing theory systems. Finally, some exigent research orientations are suggested in this paper.

scholarly journals Synthetic evaluation of integrated energy system based on AHP- fuzzy comprehensive assessment method

2020 ◽  
Vol 185 ◽  
pp. 01010
Author(s):  
Xiao Lu ◽  
Jiajia Wu ◽  
Wei Hu ◽  
Changyun Chi ◽  
Xuedong Jiang ◽  
...  
Keyword(s):  
Energy System ◽  
Assessment Method ◽  
Comprehensive Assessment ◽  
Three Dimensions ◽  
Literature Study ◽  
Analytic Hierarchy ◽  
Fuzzy Comprehensive Assessment ◽  
Integrated Energy System ◽  
Hierarchy Process ◽  
Energy Reform

Integrated energy system (IES) is an essential ingredient of energy reform. The construction of IES can promote the coupling utilization of multiple energy sources, and improve the reliability and flexibility of energy system. Based on amounts of literature study and experts’ recommendations, 9 first- class indexes, 13 second-class indexes and 11 third-class indexes are confirmed to assess the integrated energy system from three dimensions of technology, economy, and environmental protection. Analytic Hierarchy Process (AHP) and fuzzy comprehensive assessment method are adopted to assess the overall quality of chosen integrated energy system. An industrial park is chosen to be an example and examine the evaluation condition of IES.

Fuzzy Comprehensive Assessment on Environmental Impact of Petroleum Project

2013 ◽  
Vol 295-298 ◽  
pp. 734-737 ◽  
Author(s):  
Cui Juan Gao ◽  
Da Peng Li
Keyword(s):  
Environmental Impact ◽  
Assessment Method ◽  
Comprehensive Assessment ◽  
Evaluation Index System ◽  
Assessment Model ◽  
Impact Factors ◽  
Fuzzy Comprehensive Assessment ◽  
State Response ◽  
Hierarchy Process ◽  
Factor Set

The fuzzy comprehensive assessment method has proven effective in increasing the understanding of complex systems, including environmental systems. A fuzzy comprehensive assessment model of environmental impact of petroleum project is presented. The model utilizes factor set to represent environmental impact factors and evaluation set to environmental impact level. And it constructs the evaluation index system based on "pressure-state-response" model, and selects advantage indicators using the analysis hierarchy process, and determines the grading standard of environmental impact level. The results produced by this model reveal the degree of environmental impact caused by petroleum project.

System Target Damage Assessment Based on FAHP

2013 ◽  
Vol 321-324 ◽  
pp. 2367-2370
Author(s):  
Xiao Nan Zhang ◽  
Si Lang Du ◽  
Jun Feng Yang ◽  
Wei Cao
Keyword(s):  
Analytic Hierarchy Process ◽  
Damage Assessment ◽  
Target Function ◽  
Assessment Method ◽  
Analysis Method ◽  
Analytic Hierarchy ◽  
Base Damage ◽  
Hierarchy Analysis ◽  
Set Up ◽  
Hierarchy Process

It is found that the traditional BDA methods are not appropriate the system target BDA. A new method of the system target BDA is proposed in this paper. Firstly, based on Hierarchy Analysis Method (AHP), the system target function index system is set up. Secondly, the step of system target function damage assessment method is analyzed and proposed based on Fuzzy Analytic Hierarchy Process (FAHP). Finally, an example of air base damage assessment is given to verify the validity and availability of the proposed method.

Research on a Nonlinear Fuzzy Comprehensive Assessment Method for Oil & Gas Pipeline Failure Based on Fault Tree Analysis

2012 ◽  
Vol 187 ◽  
pp. 304-310
Author(s):  
Xue Wu ◽  
Ci Yuan Xiao ◽  
Xue Yan Xu
Keyword(s):  
Fault Tree ◽  
Fault Tree Analysis ◽  
Engineering Application ◽  
Assessment Method ◽  
Comprehensive Assessment ◽  
Gas Pipeline ◽  
Combination Method ◽  
Fuzzy Comprehensive Assessment ◽  
Tree Analysis ◽  
Pipeline Failure

The combination method of fault tree analysis and nonlinear fuzzy comprehensive assessment method was proposed to make research of oil & gas pipeline failure .The common factors influencing oil & gas pipeline failure could be determined with fault tree analysis .However , the practical operated oil & gas pipeline often have some individual factors and fuzzy ones .Nonlinear fuzzy comprehensive assessment method could evaluate objectively based on evaluated factors sets and weight sets provided by fault tree analysis .The new model steps were listed by taking the example of oil & gas pipeline failure .The result indicates that the method is more reasonable and easier for engineering application , and the evaluation result is more with the objective reality.

Determination of Occurrence Grades for Factors Affecting Congelation Failure on Basis of Fuzzy Comprehensive Assessment Method

2013 ◽  
Vol 753-755 ◽  
pp. 2916-2919
Author(s):  
Yang Wang ◽  
Qing Lin Cheng ◽  
Xian Li Li ◽  
Xi Yi
Keyword(s):  
Assessment Method ◽  
Comprehensive Assessment ◽  
Scientific Management ◽  
Pipeline Transportation ◽  
Fuzzy Comprehensive Assessment ◽  
Factors Affecting ◽  
Oil Pipeline ◽  
Improvement Measures ◽  
Financial Losses

Pipeline transportation is the most important transport mode for crude oil. When oil pipeline operates at low throughput or shutdown, congelation accident always happen as the temperature of oil in pipeline drops, which causes malignant accidents and significant financial losses. Study of the various factors affecting congelation failure is necessary. According to the statistics and analysis of congelation accident, direct and indirect reasons of affecting pipeline congelation failure were determined. Combining with fuzzy comprehensive assessment method, the related importance of factors on congelation accident was studied, and the grade of factors affecting failure congelation of pipeline was also identified. Aiming at the factors, some improvement measures were put forward. These can provide evidences for accident treatment, planned maintenance, security operation and scientific management.

scholarly journals Study on Health Assessment Method of a Braking System of a Mine Hoist

Sensors ◽  
2019 ◽  
Vol 19 (4) ◽  
pp. 769 ◽  
Author(s):  
Juanjuan Li ◽  
Guoying Meng ◽  
Guangming Xie ◽  
Aiming Wang ◽  
Jun Ding ◽  
...  
Keyword(s):  
Neural Network ◽  
Health Management ◽  
Back Propagation ◽  
Health Assessment ◽  
Assessment Method ◽  
Health Condition ◽  
Comprehensive Assessment ◽  
Fuzzy Comprehensive Assessment ◽  
Braking System ◽  
Mine Hoist

This paper presents a method for calculating the health degree (HD) of a braking system of a mine hoist combined with three-level fuzzy comprehensive assessment (TLFCA) and a back-propagation neural network (BPNN). Firstly, the monitored values of a sensor are fused by multi-time fusion and the fuzzy comprehensive assessment values (FCAVs) of the health condition (HC) of the sensor are obtained. Secondly, the FCAVs of all sensors in a subsystem are fused by multi-sensor fusion, and FCAVs of the subsystem are obtained. Then the FCAVs of all subsystems are fused by multi-subsystem fusion and FCAVs of the system are obtained. All the FCAVs are fed into a pre-trained neural network, and the corresponding HD of the sensor, subsystem and system is obtained. Finally, the practicability, reliability and sensitivity of the proposed method are verified by the monitored values of the test rig. This paper presents a method to provide technical support for intelligent maintenance, and also provides necessary data for further prognostics health management (PHM) of the braking system. The method presented in this paper can also be used as a reference for the HD calculation of the whole hoist and other complicated equipment.

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