Quality Control in Production Processes

Prístavka, Miroslav; Kotorová, Martina; Savov, Radovan

doi:10.1515/ata-2016-0016

Cited by 15 publications

(18 citation statements)

References 4 publications

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“…Summarising the research conducted, the possible causes of physical fatigue were illustrated using the Ishikawa Diagram. The Ishikawa Diagram is one of the basic statistical methods in quality management (Prístavka et al, 2016). Four main causes were identified: man, work system, work organisation, and physical factors of the workplace.…”

Section: Figmentioning

confidence: 99%

The Influence of Physical Fatigue on Work on a Production Line

Kołodziej

Ligarski

2017

Acta Technologica Agriculturae

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A large number of food processing plants operate in shift working time. This implies a number of consequences, not only in terms of organisation and work efficiency, plant operation legal regulations, energy consumption, etc., but it also affects the wellbeing of employees working in different times of day or night. All of these factors can significantly influence the quality of production processes as well as the overall outcome of conducted business activity, reflecting the profitability of a given business. Therefore, it is important to undertake research to deepen the existing knowledge about the impacts of psychological variables, including shift work fatigue, on the productivity and wellbeing of employees working in the shift system. Available literature clearly indicates that shift work has many negative impacts on employees. The most significant consequences include: higher psychological costs for work performance; higher incidence of gastrointestinal problems; higher stress levels; reduced body immunity; lower sleep quality; and hormonal disturbances associated with sleep and wake control (Juslén et al., 2007;Murray and Thimgan, 2016).As a result, the shift work is also associated with a decreased productivity as well as higher incidence of employees' low job satisfaction in comparison to non-shift workers (Rutenfranz et al., 1978;Weiner, 1984;Folkard and Monk, 1985;Dall'Ora et al., 2016). The majority of the mentioned negative correlations of the shift work is related to the disturbance of the natural rhythm of sleep and wakefulness. The research on ergonomics, including the information presented by Otto Graf, shows that the highest productivity is achieved in the morning (8 a.m.-10 a.m.), i.e. during the first shift. This productivity is higher than the average productivity by 30%. Approximately at noon, it decreases and then rises to the maximum between 12 a.m. and 2 p.m. During the second shift, the maximal productivity is observed around at 6 p.m., and then it constantly decreases till 3 a.m. After this time, the productivity again increases, reaching a high level in the morning. The shift work interferes with the natural pattern of human activity, forcing to work at significantly reduced levels of body performance, especially during the night. The workers who frequently attend the night shifts have sleeping issues and lack of full body regeneration leads to fatigue, both physical and mental.As defined by the literature, physical fatigue appears due to excessive muscles overload (Schultz and Schultz, 2011). There are two types of fatigue: central and peripheral one. The central fatigue refers to the feeling of muscle pain and difficulties in the work performed. This type of fatigue is responsible for the decrease in concentration, attention, motivation and psychomotor efficiency. Vice versa, the peripheral fatigue leads to a decrease in muscle strength and muscle contraction due to fatigue (Koradecka, 1999). Fatigue does not increase gradually during the working day, but it appears and disappears a...

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Section: Figmentioning

confidence: 99%

The Influence of Physical Fatigue on Work on a Production Line

Kołodziej

Ligarski

2017

Acta Technologica Agriculturae

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“…We must consider the possible causes of harm and what steps to take in preventing the harm in the first place. If our business has fewer than 5 employees, you don't have to document anything, but you must have considered hazards and control measures (Korenko et al, 2015;Prístavka et al, 2014;Tureková, 2016;Knop et al, 2018) Failure Modes and Effects Analysis (FMEA) is methodology for analyzing potential reliability problems early in the development cycle where it is easier to take actions to overcome these issues, thereby enhancing reliability through design. FMEA is used to identify potential failure modes, determine their effect on the operation of the product, and identify actions to mitigate the failures.…”

Section: Introductionmentioning

confidence: 99%

Using the Dematel Model for the FMEA Risk Analysis

Bujna

Kotus

Matušeková

2019

System Safety: Human - Technical Facility - Environment

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Technological progress has brought a large amount of complex machinery into the work processes, which represents a potential source of serious injuries, accidents, or breakdowns. The aim of this paper is to follow new trends in the FMEA and their use in our study. We have chosen the Turning Machine Doosan V-Puma Doosan PUMA V550R Machining Centre with manufacturing diameters and mechanical machining operations. We have created the FMEA team, which participated in the entire evaluation and analysis. We identified possible failures and causes of failures in the given operations. We applied the conventional PFMEA and identified the RPN risk number. We also used DEMATEL model. Using DEMATEL matrices, we identified a binding between the individual failures and the causes of the failures. Some failures will become the main cause of other failures and the causes of the failures; some arise as a result of other failures or causes of failures. Finally, we evaluated the applicability of individual methods and models. By the DEMATEL model we clarified the significance and bindings between individual failures.

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“…IT security threats and data-related risks, and the risk management strategies to alleviate them, have become a top priority for digitized companies. As a result, a risk management plan increasingly includes companies' processes for identifying and controlling threats to its digital assets, including proprietary corporate data, a customer's personally identifiable information and intellectual property [Antunes et al, 2015;Prístavka et al 2014Prístavka et al ,2015.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Selected Equipment by Method FTA

Bujna¹,

Dostál²

2017

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The aim of my research was to qualitatively and quantitatively evaluate the potential risks on Extruder, detect the probability of occurrence and therefore take reformation measures for their elimination or minimization. Throughout the research, we focused on the process compounding and recycling of plastic waste, production stage of secondary processing with plastic waste. We have reviewed the extruder machine. First, we qualitative consider the device by constructing fault tree. First, we consider qualitative data of the device with constructing fault tree, Subsequently, we use quantitative analysis and we specify the probability of a negative phenomenon. The result is more accurate and objective determination of probability and risk itself. The result is more accurate and more objective determination of probability and the actual risk.

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Quality Control in Production Processes

Cited by 15 publications

References 4 publications

The Influence of Physical Fatigue on Work on a Production Line

The Influence of Physical Fatigue on Work on a Production Line

Using the Dematel Model for the FMEA Risk Analysis

Assessment of Selected Equipment by Method FTA

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