Based on the Fuzzy Multi-Objective People Decision Method of Engineering Bidding Evaluation

2013 ◽  
Vol 671-674 ◽  
pp. 3147-3151
Author(s):  
Yun Na Wu ◽  
Chao Liu ◽  
Mandula Naren ◽  
He Ping Wang ◽  
Jian Chen
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Methods ◽  
Actual Case ◽  
Engineering Construction ◽  
Comprehensive Evaluation Method ◽  
Multi Objective ◽  
Bidding Price ◽  
Weight Method ◽  
Conducting Research

The construction project bidding is a feasible method in engineering transactions and the main competition form of the construction activities under the conditions of the market economy. The bid assessment is an important link of bidding, and whether bid evaluation method is scientific or not, is directly related to the success of the tender. In the engineering construction field, at present the current commonly used evaluation methods are the comprehensive evaluation method and the lowest bidding price evaluation method. Based on fuzzy set theory and multi-objective people decision theory, we introduce fuzzy multi-objective people decision-making evaluation methods. And conducting research to put forward the evaluation index and weight method to determine the bidding decision model. Finally we apply it to actual case to make out the more standardized and scientific bidding evaluation method.

Comprehensive Evaluation Method of ORC System Performance Based on the Multi-Objective Optimization

2014 ◽  
Vol 997 ◽  
pp. 721-727 ◽  
Author(s):  
Liang Jiang ◽  
Ya Dong Zhu ◽  
Victor Jin ◽  
Li Jun Yu
Keyword(s):  
System Performance ◽  
Evaluation Method ◽  
High Efficiency ◽  
Waste Heat ◽  
Comprehensive Evaluation ◽  
Organic Rankine Cycle ◽  
Multi Objective Optimization ◽  
Comprehensive Evaluation Method ◽  
Multi Objective ◽  
Evaporation Temperature

The choice of evaluating indicator has a most important influence on the performance analysis and optimization of Organic Rankine-cycle (ORC) system. In this paper, the net output power of unit mass of exhaust gas (), the cycle exergy efficiency (), the total waste heat emissions () and the product of exchanger's area and total heat transfer coefficient () are selected as the four key indicators which can reflect the characteristics of ORC system. And then, a comprehensive evaluating indicator of ORC system performance () is obtained according to the theory of multi-objective optimization. Further, a comprehensive evaluation method of ORC system performance based on the multi-objective optimization is put forward in this paper. After that, this method is used to optimize the evaporation temperature which is considered as a key parameter of ORC system performance. According to researches, the results gained by using a single-objective optimization method with only one performance parameter as the indicator, cannot often take a global view of the ORC system performance and sometimes may lead to a deviation. Researches also show that increases firstly and then decreases with the increment of the evaporation temperature, and there exists a value of evaporation temperature to maximize . Through analysis and researches, it can be found that the comprehensive evaluation method of ORC system performance based on the multi-objective optimization provided in this paper gives a synthetic consideration to the requirements from high-efficiency, economy, thermodynamic perfection and environment protection. Moreover, by using this method, the ORC power generation system may be more likely to achieve the best comprehensive performance.

Study on the Variable Weight Method for Gearbox Fuzzy State Evaluation

2014 ◽  
Vol 651-653 ◽  
pp. 885-890
Author(s):  
Huai Liang Zheng ◽  
Ri Xin Wang ◽  
Min Qiang Xu
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Analytic Hierarchy ◽  
Comprehensive Evaluation Method ◽  
State Evaluation ◽  
Variable Weight ◽  
Weight Method ◽  
Fuzzy State ◽  
Hierarchy Process

Based on the gearbox as the research object, we discussed the problem: how to confirm every part’s weight when assess gearbox’s state by fuzzy comprehensive evaluation method. Contraposing the main problem of the weight-fixed Analytic Hierarchy Process (AHP) that ignoring every part’s fault degree in the process of evaluation, a variable weight method is proposed base on the rate of fault degree contribution. And to a state known gearbox, the weight of each part in the whole gearbox assessment is confirmed by the AHP and the variable weight method respectively. The comparison of the two assessment results shows that the result get by the variable weight method is more close to the gearbox’s real state, so this method is more accurate. What’s more this method is very simple, and can be used in real project.

The Generalized Product Quality's Comprehensive Evaluation Method Based on Entropy Weight Method

2012 ◽  
Vol 569 ◽  
pp. 662-665
Author(s):  
Yang Liu ◽  
Jian Wang ◽  
Gui Zhen Liu ◽  
Li Qun Liu ◽  
Bang Chun Wen
Keyword(s):  
Product Quality ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Objective Assessment ◽  
Evaluation Process ◽  
Scientific Basis ◽  
Entropy Weight ◽  
Comprehensive Evaluation Method ◽  
Entropy Weight Method ◽  
Weight Method

For getting an objective assessment of product quality efficiently, the comprehensive evaluation method of generalized product quality was used to evaluate products. At the same time, the index weights were determined by entropy weight method. Taking air screener as example in this paper, we used the comprehensive evaluation method of generalized product quality which was based on entropy weight method to evaluate many types of air screeners and used the software which was made with VB to calculate the data, it made the evaluation process more objective and reliable. The result which was got with this method provided the scientific basis for users to choose the products and for companies to improve the product's quality.

Research on the Credibility Evaluation Methods of Combat Simulation

2015 ◽  
Vol 713-715 ◽  
pp. 2139-2142
Author(s):  
Jian Bing Tang ◽  
Tian Tian Guo ◽  
Qi Gao Hu ◽  
Ya Bing Zha
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
System Simulation ◽  
Evaluation Methods ◽  
Simulation System ◽  
Comprehensive Evaluation Method ◽  
Key Performance Index ◽  
Combat Simulation ◽  
The Common ◽  
Multi Level

Credibility is the key performance index and the lifeline for system simulation. Verification, validation and accreditation (VV&A) of all system simulation life can insure the credibility, and credibility evaluation is a very necessary approach to obtain the credibility. Combat simulation is a special simulation for its many characteristics of multi-level, more elements, overall emergence, uncertainty, morbid and multi-granularity model, and so on. Credibility is vital to combat simulation. The evaluation method is one of the aspects of credibility evaluation. In this paper, the methods of credibility evaluation are researched. The common evaluation methods are analyzed and compared. Aiming at the characteristics of combat simulation system, the subjective comprehensive evaluation method based on subject matter expert (SME) is put forward, which is applied to a combat simulation. The practice shows that the subjective comprehensive evaluation method is very effective. The results are sufficiently credible to support the application.

Research on the Present Situation of China's Power Sources Based on Multi-Objective Comprehensive Evaluation Method

2013 ◽  
Vol 869-870 ◽  
pp. 526-532
Author(s):  
Bu Chan Hou ◽  
Ying Ling Shi
Keyword(s):  
Sustainable Development ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Present Situation ◽  
Power Source ◽  
Power Sources ◽  
The Sustainable Development ◽  
Comprehensive Evaluation Method ◽  
Multi Objective ◽  
Source Structure

Multi-objective comprehensive evaluation method is a new evaluation method which analysis on the sustainable development. This article is evaluating the present situation of the sustainable development of China's power source structure through this method, view to the future development. We select 7 indicators in order to reflect the economic effects, environmental effects and power production levels, and describe the sustainability degree, the development degree and the coordination degree from 2000 to 2007 in China. The research indicated that although the China's power source structure is being far away from the unsustainable critical point slowly, slowly approaches to the target point, but the way deviated from the path of the development of optimal path.

scholarly journals Comprehensive Evaluation Study of the Owners under the General Contracting Mode of the Project

2021 ◽  
Vol 257 ◽  
pp. 03039
Author(s):  
Guo Rui ◽  
Liu Xiao Dong ◽  
Zhu Pu ◽  
Zhang Jing ◽  
Yang Chun Lin
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Study ◽  
Evaluation Framework ◽  
Evaluation Index System ◽  
Engineering Construction ◽  
Comprehensive Evaluation Method ◽  
General Contracting ◽  
Project Construction ◽  
General Contractors

How do owners balance the management and encouragement of general contractors under EPC mode not only affect the project construction effect, but also hinder the promotion of EPC mode. Referring to the theory of evaluation and the thought of performance evaluation, this paper puts forward a set of novel comprehensive evaluation methods from five aspects: comprehensive evaluation index system, comprehensive evaluation method system, grading rules, method and index weighting and comprehensive evaluation. Through the construction of a reasonable comprehensive evaluation framework, it aims to coordinate the commonly used management forces and means of existing engineering construction, objectively and reasonably evaluate the general contractor’s behavior and project construction effect, solve the practical problem of difficult owner supervision under EPC mode, and promote the popularization and application of EPC mode in China.

Application of Fuzzy Comprehensive Evaluation in the Bid Evaluation of Municipal Engineering Construction Projects

2014 ◽  
Vol 584-586 ◽  
pp. 2159-2164 ◽  
Author(s):  
Jing Geng ◽  
Bing Nan Ren
Keyword(s):  
Construction Projects ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Process ◽  
Fuzzy Comprehensive Evaluation ◽  
Decision Makers ◽  
Engineering Construction ◽  
Comprehensive Evaluation Method ◽  
Bid Evaluation ◽  
Municipal Engineering

In this paper, four bidding enterprises participated in the tendering of municipal engineering construction are evaluated in the bidding process, tendering process and bid evaluation of a large museum by applying the fuzzy comprehensive evaluation method and referring to features of municipal engineering construction projects, so as to select the best bidder. With this method, there will be few subjective factors influencing the decision makers during the bid evaluation process, which can reflect the strength of each bidder objectively and accurately, and improve the bid evaluation method in comprehensiveness and rationality.

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