Temat: failure mode - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Method of performing Design FMEA on electronic circuit diagrams
Autorzy:: Karcz, R.
Tematy:: electronic circuit analysis
failure mode
TTAA; Pokaż więcej
Data publikacji:: 2015
Powiązania:: https://bibliotekanauki.pl/articles/2069239.pdf Link otwiera się w nowym oknie
Źródło:: Journal of Polish Safety and Reliability Association; 2015, 6, 1; 125--128
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Opis:: Existing method of performing FMEA for electronic diagrams is time consuming task. For complex systems analysis of every single component failure mode and its effect deeply involves design team and blocks resources availability for long time. Method presented in this paper allows effective analysis of design failure modes using FMEA approach carrying so called Time to Acceptable Analysis (TTAA) constraint.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Static and Dynamic Mechanical Properties of Nodular Cast Irons
Autorzy:: Vaško, A.
Belan, J.
Tillová, E.
Tematy:: nodular cast iron
microstructure
mechanical properties
fatigue
failure mode; Pokaż więcej
Data publikacji:: 2019
Powiązania:: https://bibliotekanauki.pl/articles/354847.pdf Link otwiera się w nowym oknie
Źródło:: Archives of Metallurgy and Materials; 2019, 64, 1; 185-190
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Opis:: Effects of charge composition on microstructure, mechanical and fatigue properties of nodular cast irons have been studied. For experiments, five melts of nodular cast iron were used – three types of unalloyed nodular cast irons (with different ratio of steel and pig iron in a charge and different additives for regulation of the chemical composition) and two types of alloyed nodular cast irons (SiMo- and SiCu- nodular cast iron). The microstructure of the specimens was evaluated according to a norm and by automatic image analysis. The mechanical properties were investigated by the tensile test, impact bending test and Brinell hardness test. The fatigue tests were carried out at sinusoidal cyclic push-pull loading at ambient temperature. The best mechanical properties were reached in the nodular cast iron alloyed by Si and Cu, what is related to its microstructure.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: An Analysis Of Tensile Test Results to Assess the Innovation Risk for an Additive Manufacturing Technology
Autorzy:: Adamczak, S.
Bochnia, J.
Kaczmarska, B.
Tematy:: failure mode and effects analysis
static tensile test
measurement uncertainty; Pokaż więcej
Data publikacji:: 2015
Powiązania:: https://bibliotekanauki.pl/articles/221812.pdf Link otwiera się w nowym oknie
Źródło:: Metrology and Measurement Systems; 2015, 22, 1; 127-138
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Opis:: The aim of this study was to assess the innovation risk for an additive manufacturing process. The analysis was based on the results of static tensile tests obtained for specimens made of photocured resin. The assessment involved analyzing the measurement uncertainty by applying the FMEA method. The structure of the causes and effects of the discrepancies was illustrated using the Ishikawa diagram. The risk priority numbers were calculated. The uncertainty of the tensile test measurement was determined for three printing orientations. The results suggest that the material used to fabricate the tensile specimens shows clear anisotropy of the properties in relation to the printing direction.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Culture Failure Mode Effect Analysis: Resistance to Change in Contemporary HRM
Autorzy:: Oborka, Edyta
Kibble, Kevin
Stanford, Mark
Tematy:: Resistance
Change Management
Organizational Culture
Failure Mode Effect Analysis (FMEA).; Pokaż więcej
Data publikacji:: 2012-10-15
Powiązania:: https://bibliotekanauki.pl/articles/598652.pdf Link otwiera się w nowym oknie
Źródło:: Zarządzanie Zasobami Ludzkimi; 2012, 5(88); 109-117
1641-0874
Pojawia się w:: Zarządzanie Zasobami Ludzkimi
Opis:: Competitive economic conditions drive Continuous Improvement (CI) processes within organisations. CI systems and practices are easily accessible. However, questions have to be asked: Is the organization ready for necessary CI changes and is resistance to change an issue in the business? In the change management process the maturity of the organizational culture plays the key role. A significant set of requirements has to be fulfilled to facilitate transformation of the changes into constructive results. In order to assess the level of business advancement, and the maturity of those requirements, the Culture Failure Mode Effect Analysis Tool (CFMEA) has been created. CFMEA provides a practical system for assessing long–term changes, and, in the short term, will make the company fully aware of the critical cultural aspects that have to be developed. CFMEA is an original technique for identifying effects and causes of potential failures during the change implementation process and an organization’s readiness for change.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Operation Risk Management of Planning and Piping Design in a Large Petrochemical Plant Project
Autorzy:: Deeswasmongkol, Kamolwan
Sachakamol, Punnamee
Tematy:: failure mode and effects analysis
piping design and drawing process
control plan; Pokaż więcej
Data publikacji:: 2014
Powiązania:: https://bibliotekanauki.pl/articles/633727.pdf Link otwiera się w nowym oknie
Źródło:: International Journal of Synergy and Research; 2014, 3
2083-0025
Pojawia się w:: International Journal of Synergy and Research
Opis:: Purpose – The purpose of this paper is to present practical and research lessons learned from analysis and the identification of failures which can occur. Failure mode and effects piping analysis (FMEPA) has been shown to be an effective way of improving piping design reliability. FMEPA is also employed for making sample control plans. Design/methodology/approach – To reduce project losses by using failure mode and effects piping analysis as a tool for analysis of the piping design department. The samples were selected from five projects. It was found that nine major points yielded a risk priority number (RPN) higher than 125. Findings – Results of RPN calculation concerning four topics revealed that the RPN value was reduced from 211 to 75, demonstrating a 64.4 percent improvement. Research limitations/implications – The study is limited to a planning and piping case study which considers RPN. Testing of the performance network regression model can be employed in companies, in which quality control has been implemented of solutions for failure prevention of piping design. Practical implications – This paper serves practitioners as a guideline and tool to understand and implement the FMEPA methodology. At this level, management sets the limits for determining measures. Management also decides whether a risk is acceptable or not. Management needs to clarify which risk priority number (RPN) represents the critical level above which requires risk reduction. Social implications – Conflicts and social unrest can cause costly delays to new projects and operations. Conflicts can also result in damage to a company’s reputation. This depends on the company’s responses to the conflict and the consequences or perceived consequences of its behavior and actions. Originality/value – This paper furnishes lessons learned for practitioners in various industrial sectors in preference to other methods of risk assessment and control activities.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Study of the characteristics about insulation damage based on the accelerated life tests
Badanie charakterystyk uszkodzeń izolacji w oparciu o testy przyspieszonego starzenia
Autorzy:: Yang, Y. H.
Wang, K.-S.
Tematy:: accelerated life testing
competing failure mode
insulation degradation
Gompertz-type relation shape parameter; Pokaż więcej
Data publikacji:: 2013
Powiązania:: https://bibliotekanauki.pl/articles/300857.pdf Link otwiera się w nowym oknie
Źródło:: Eksploatacja i Niezawodność; 2013, 15, 4; 325-331
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Opis:: In this study the Maximum Likelihood Estimator is taken to identify the characteristics of insulation failure about the class-H motors by considering the accelerated life testing data under censored situation from Nelson. Based on the Weibull survival modeling the failure is expressed as the series connection of three modes, namely the turn, phase, and ground, respectively, the so-called competing failure. The main concern in present investigation is about the variation of shape parameters, β with the temperature. The Gompertz-type relation of βi(T) is suggested with the reference temperature, Tri for the i-th failure mode. It is found that the Tri ’s not only distinguish the characteristics of cumulative damage process about the insulation, but also involve the estimation of mean-time-to-failure (MTTF). Physically Tri denotes the turning point of varied βi as the i-th failure mode becomes moderate in a sense of less capability about the accumulation of insulation damage at higher temperature where corresponds the thermal degradation process. The numerical results indicate that the insulation technique used is acceptable as the operation temperature kept in the use condition 363K. According to the predicted lifetime as the temperature rises up to 440K, which still within the allowed range in application, the turn structure needs to be rearranged primarily, then the phase next. The ground mode has only influence on the failure at much higher temperature.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Monitoring of the Production Processing in a Metallurgical Company Using FMEA Method
Autorzy:: Dudek-Burlikowska, M.
Tematy:: quality management
failure mode and effect analysis
number of risk
product life cycle; Pokaż więcej
Data publikacji:: 2017
Powiązania:: https://bibliotekanauki.pl/articles/354481.pdf Link otwiera się w nowym oknie
Źródło:: Archives of Metallurgy and Materials; 2017, 62, 4; 2089-2094
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Opis:: The possibility of use of Failure Mode and Effect Analysis methods is connected with continuous quality improvement of production processes in companies. Interdependence of the quality research methods and production process’s requirements have been taken into account. FMEA method is the analysis aimed at the disclosure and elimination of potential weaknesses of the process, that is the variants that may cause defects during its implementation. The example of implementing Failure Mode and Effect Analysis in polish companies have been presented.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Assessing risk priority numbers of failures in the screw tightening machine of a hard disk drive production system
Autorzy:: Paoprasert, Naraphorn
Lin, Wai Yan Htet
Muneekaew, Thepniramit
Tematy:: mean time between failures
mean time to repair
failure mode and effects analysis; Pokaż więcej
Data publikacji:: 2022
Powiązania:: https://bibliotekanauki.pl/articles/2052184.pdf Link otwiera się w nowym oknie
Źródło:: Journal of Machine Engineering; 2022, 22, 1; 124-137
1895-7595
2391-8071
Pojawia się w:: Journal of Machine Engineering
Opis:: In a competitive environment, many production industries must reduce costs while maintaining asset value and reliability. In the manufacturing process, the machine is essential because downtime can inhibit and stop production. This study investigated the breakdown trend of a hard disk drive production line in the manufacturing industry to recommend applying Reliability-Centered Maintenance (RCM) for improved productivity, reliability, and availability. This study focused on breakdown analysis, identifying potential failures, and classifying the main components of screw-tightening machines. The RCM method was used based on several tools: failure mode and effects analysis (FMEA), risk priority number (RPN), mean time between failures (MTBF), and mean time to repair (MTTR). The study identified which production line had the lowest availability and productivity due to high downtime and failure rates. In addition, the top-five failures were identified that severely disrupted production These breakdowns were overcome and their occurrence reduced was by calculating and evaluating MTBF and MTTR to help manage failures and indicate the efficiency of corrective action. Thus, this industry and others can achieve better equipment availability and machine reliability using the RCM method.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: FMECA analysis of thermal deburring machine EXTRUDE HONE TEM P-350
Autorzy:: Galliková, Jana
Grenčík, Juraj
Barta, Dalibor
Barlok, Matej
Tematy:: FMECA
thermal deburring process
failure mode analysis
maintenance systems
preventive and detection actions; Pokaż więcej
Data publikacji:: 2020
Powiązania:: https://bibliotekanauki.pl/articles/1819184.pdf Link otwiera się w nowym oknie
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2020, 63 (135); 9-16
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Opis:: This study investigates FMECA analysis and its potential use in improving the reliability and maintenance of the thermal deburring machine in a manufacturing company located in Slovakia. In the beginning, an overview of the FMEA/FMECA methods and their utilization for increased reliability are discussed. As a practical solution, the deburring machine EXTRUDE HONE TEM P-350 was chosen. Functions of its systems and components, thermal deburring process, its characteristics and in practice application are described. Maintenance policy in the company and the current state of maintenance of the machine are also presented. In addition, the study includes failure analysis which evaluates the riskiest systems of the machine. One element, hydraulic unit, is a subject for the FMECA analysis which envisions the assessment of the current failure modes using risk priority number (RPN) and proposals of prevention and detection action reducing the level of RPN. The final section focuses on influencing and improving maintenance and summarizing the potential benefits of FMECA Analysis for company and machine operation.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Metoda optymalnego wzmacniania przestrzennych konstrukcji kratowych z wykorzystaniem analizy wrażliwości systemowego wskaźnika niezawodności
Method of optimum reinforcing of space truss structures with the use of sensitivity analysis of system reliability index
Autorzy:: Silicki, A.
Silicka, E.
Tematy:: analiza niezawodnościowa
metoda ścieżek zniszczenia
kratownice przestrzenne
reliability analysis
failure mode method
space trusses; Pokaż więcej
Data publikacji:: 2010
Powiązania:: https://bibliotekanauki.pl/articles/155141.pdf Link otwiera się w nowym oknie
Źródło:: Pomiary Automatyka Kontrola; 2010, R. 56, nr 6, 6; 613-616
0032-4140
Pojawia się w:: Pomiary Automatyka Kontrola
Opis:: W pracy zaproponowano koncepcję optymalnego wzmacniania konstrukcji prętowych na podstawie analizy wrażliwości systemowego wskaźnika niezawodności ß. W tym celu opracowano algorytm wyznaczania zmian ß przy zmianach wartości zmiennych opisujących poszczególne elementy wchodzące w skład ścieżki zniszczenia. Przyjętym kryterium oceny było minimum przyrostu masy obiektu oraz uzyskany wzrost poziomu bezpieczeństwa. Przeprowadzona analiza pozwala na racjonalny i efektywny sposób projektowania z uwzględnieniem losowego charakteru obciążeń i parametrów projektowych.
The paper deals with the problem of optimum reinforcing of space truss structures. For that purpose two criteria are assumed - minimum self weight increment and maximum reliability index increment. First chapter contains introduction and general remarks about design in civil engineering. In the second and third chapter basis of the theory of reliability are introduced - definition of probability of failure (Fig. 1), linear approximation method, Hasofer - Lind reliability index (Fig. 2), system reliability analysis (Fig. 3) [1, 6, 7, 10]. Chapter 4 contains proposed algorithm of reinforcing of truss structures. To find the most efficient method of reinforcing, sensitivity analysis of failure mode reliability index is employed. The dominant failure mode is obtained with the use of incremental method. The profiles of the elements of the failure mode are changed and the reliability index is calculated. The cross section of the bars are selected from discrete set of steel elements. For each variation structural self weight and reliability index is determined. Numerical example of the proposed algorithm is analysis of truss dome (Fig. 5). The most significant concluding remark is that the reliability analysis is an important part of design process [4, 5, 11].
Dostawca treści:: Biblioteka Nauki

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