Method of improve the level of product quality

Abstract Meeting customers’ requirements and achieved the right level of product quality is key action of enterprises. It is being done by controlling the product, using for example non-destructive testing (NDT). But the NDT not indicating what is the root of incompatibility. Additionally, previous research does not include the decision methods, which would be related the identify the causes of the problem as part of improving the product quality. Therefore, the aim is supporting the process of improving the product quality level in the context of precisely identify the incompatibility and the root of their occurrence with including the solve decision problem. In this aim, it was assumed that using after the NDT research in connection way: brainstorming, cause and effect diagram, AHP method (Fuzzy Analytic Hierarchy Process) and the 5Why method, will be allowed on effective identify the root of the problem. The method test was carried out for the porosity on a welded mechanical seal made of steel 410, which was identified by the fluorescence method (FPI) in Podkarpacie enterprise. The analysis has shown the effectiveness of using after NDT the combined methods as part of identifying the incompatibility and precisely identifying the root of its occurrence in context of solving the decision problem. The proposed method can be used to improving the quality of other products, for example from the aviation and automotive industry, as part of meeting customer requirements. Originality is the combined NDT research with quality management techniques and supported the process of improving the quality level of the product by implementing in this sequence the fuzzy multicriteria decision method.

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Method of Choice: A Fluorescent Penetrant Taking into Account Sustainability Criteria

Sustainability ◽

10.3390/su12145854 ◽

2020 ◽

Vol 12 (14) ◽

pp. 5854

Author(s):

Andrzej Pacana ◽

Dominika Siwiec ◽

Lucia Bednárová

Keyword(s):

Quality Analysis ◽

Quality Level ◽

Ahp Method ◽

Destructive Testing ◽

Analytic Hierarchy ◽

Sustainability Criteria ◽

Negative Impacts ◽

The Cost ◽

Hierarchy Process ◽

Non Destructive

To conduct, in an effective way, the non-destructive testing (NDT) of products—in particular, the fluorescent penetrant inspection (FPI)—remains a challenge. Therefore, the aim of this work is to propose the method of support in the choice of a fluorescent penetrant to be used in FPI research. In the results of the usage of the proposed procedure, it is demonstrated that it is possible to reduce the negative impacts on the environment by FPI processes (through sustainability), while including other criteria, i.e., financial, security, productive (Industry 4.0), and societal (Society 5.0) criteria. The essence of the proposed method is to integrate two methods of decision support. These were the analytic hierarchy process (AHP) method and the cost–quality analysis (AKJ). Using the AHP method, the quality level of fluorescent penetrant (to the satisfaction of the customer)—which included the sustainability criteria—are calculated. These criteria include natural environment, reactivity, combustibility, level of sensitivity, and type of washing (emulsification). Then, with the help of the AKJ, the most favorable penetrant—in terms of quality and cost—is calculated and, thus, indicated. This choice must include the concept of sustainable development. Therefore, this method can be used to choose fluorescent penetrants in manufacturing and service enterprises which carry out FPI.

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MULTI CRITERIA DECISION MAKING – RANKING AND PROMOTING EMPLOYEES

Knowledge International Journal ◽

10.35120/kij31051235b ◽

2019 ◽

Vol 31 (5) ◽

pp. 1235-1241

Author(s):

Marina Badarovska Mishevska

Keyword(s):

Decision Making ◽

Decision Problem ◽

Decision Makers ◽

Decision Making Process ◽

Specific Situation ◽

Mathematical Tool ◽

Analytic Hierarchy ◽

The Right ◽

Term Performance ◽

Hierarchy Process

The analytic hierarchy process (AHP) is a structured technique for organizing and analyzing complex decisions, based on mathematics and psychology. The method was developed by Thomas L. Saaty in the 1970s and has been extensively studied and refined since then. It has particular application in group decision making and is used around the world in a wide variety of decision situation. Rather than prescribing a "correct" decision, the AHP helps decision makers choose one that best suits their goal and their understanding of the problem. The technique provides a comprehensive and rational framework for structuring a decision problem, for representing and quantifying its elements, for relating those elements to overall goals, and for evaluating alternative solutions. Decision making is the choice of one alternative, from two or more, to which the course of the activity is directed and the problem is solved. The decision-making process is a rational attempt by the manager to achieve the goals of the organizational unit. The decision-making process can be thought of as a "brain and nervous system" of an enterprise. Decisions are made when a person wants things to be different in the future. Given each specific situation, making the right decisions is probably one of the most difficult challenges for managers. Managers in day-to-day work deliver programmed and unprogrammed decisions that solve simple or complex problems. Simple decisions have an impact on the short-term performance of the enterprise, and complex decisions have an impact on the long-term future and success of the enterprise. Users of the AHP first decompose their decision problem into a hierarchy of more easily comprehended sub-problems, each of which can be analyzed independently. Once the hierarchy is built, the decision makers systematically evaluate its various elements by comparing them to each other two at a time, with respect to their impact on an element above them in the hierarchy. The AHP converts these evaluations to numerical values that can be processed and compared over the entire range of the problem. In this article, it is explained the application of the AHP method in order to evaluate and promote employees in the enterprise "X" with several criteria. The obtained results enable the manager to evaluate the employees in an objective way and make an objective decision for their promotion. Its application for selecting the best among employees, in their assessment and promotion, allows managers to use a specific and mathematical tool to support the decision. This tool not only supports and qualifies decisions, it also allows managers to justify their choice, as well as to simulate possible results.

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Application of multiple criteria decision methods to optimise learning scenarios

Lietuvos matematikos rinkinys ◽

10.15388/lmr.b.2016.10 ◽

2016 ◽

Vol 57 ◽

Author(s):

Julija Kurilova ◽

Eugenijus Kurilovas

Keyword(s):

Comparative Analysis ◽

Quality Evaluation ◽

Fuzzy Numbers ◽

Analytic Hierarchy ◽

Personalised Learning ◽

Decision Methods ◽

Learning Scenarios ◽

Optimisation Methods ◽

Hierarchy Process

In the paper, learning scenarios (units) quality evaluation and optimisation problems are analysed. Learning scenarios optimisation is referred here as its personalisation according to learners needs. In the paper, comparative analysis of two popular optimisation methods based on Fuzzy numbers theory and Analytic Hierarchy Process is performed, aiming to measure what method is the most suitable to evaluate the quality of personalised learning scenarios. Learning scenarios quality is referred here as its suitability to learners needs. Research results show that Fuzzy numbers theorybased methods are more suitable to evaluate the quality of personalised learning scenarios.

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Research on Comprehensive Evaluation of Service Quality of Distribution Network Construction Unit Based on Analytic Hierarchy Process

E3S Web of Conferences ◽

10.1051/e3sconf/202127602006 ◽

2021 ◽

Vol 276 ◽

pp. 02006

Author(s):

Xue Chen ◽

Dacai Chen ◽

Jiyu Li ◽

Yifu Lin ◽

Jutian Lai

Keyword(s):

Service Quality ◽

Analytic Hierarchy Process ◽

Power Grid ◽

Distribution Network ◽

Evaluation Index System ◽

Operating Efficiency ◽

Quality Level ◽

Analytic Hierarchy ◽

Hierarchy Process

The service quality level of the construction unit plays an important role in improving the construction quality of the distribution network and the operating efficiency of the power grid enterprises. Therefore, this article combines the characteristics of the construction process management of the distribution network, aims to improve the service quality level of the construction unit, and combines the relevant system requirements of the power grid enterprise and the construction standardization management norms to construct a scientific and reasonable evaluation index system for the service quality level of the construction unit; The analytic hierarchy process determines the index weights and evaluation methods, and provides technical guidance and reference for the power grid enterprises to reasonably carry out the service quality evaluation of the construction unit.

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Nondestructive Testing for Support Quality of Tunnel

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.501-504.1815 ◽

2014 ◽

Vol 501-504 ◽

pp. 1815-1819

Author(s):

Lan Qiao ◽

Ming Cui ◽

Qing Chi Cai

Keyword(s):

Non Destructive Testing ◽

Destructive Testing ◽

Large Space ◽

Tunnel Support ◽

Impact Echo ◽

Holding Power ◽

Composite Lining ◽

The Right ◽

Non Destructive

A tunnel in Chengde collapsed several times and cracks existed in the second lining. Using non-destructive testing equipment, tunnel support was detected to find out the hidden trouble early. In the section of K16+890~K16+950, the quality of tunnel support was assessed, with GPR and anchor measuring apparatus. In the tunnel, the thickness of composite lining was 25cm, and the second lining was 38cm, both of which met the design requirements. Positive peak method was selected to locate on I beam. The average longitude space of I beam was 127cm, while the design value is 120cm. Many rock bolts was lacked at the right crown. Moreover, the bolts in the haunch did not kept in diamond layout, close to I beam. Through analyzing waveforms of impact-echo, the number of qualified bolts only made up 74 per cent of the total bolts. The large space of I beam led to the lack of holding power. Meanwhile, the disqualified bolts limit the coordination deformation between surrounding rock and support. All the support defects led to tunnel collapse. These tests results demonstrate that NDTcan be used to mitigate the risks of tunnel construction.

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