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Wyświetlanie 1-8 z 8
Tytuł:
Preliminary recognition of whole body vibration risk in private farmers working environment
Autorzy:
Solecki, L
Powiązania:
https://bibliotekanauki.pl/articles/50795.pdf
Data publikacji:
2007
Wydawca:
Instytut Medycyny Wsi
Tematy:
whole body vibration
noise
human disease
tractor operator
vibration risk
spine
occupational factor
body vibration risk
field work activity
degenerative change
back pain
Opis:
The objective of the study was the preliminary recognition of whole body mechanical vibration risk among farmers in the rural work environment. The study covered 15 farms using cultivated land of the size of over 10 ha, carrying out mixed production (plant-animal), equipped with agricultural tractors, and a basic set of tractor-mounted agricultural machinery, with a partial contribution of self-propelled agricultural machines. The scope of the study covered the measurements of effective vibration RMS acceleration (equivalent, maximum, minimum, peak) frequency corrected on the seats of agricultural vehicles in the three spatial directions of vibration (X, Y, Z). These measurements were realized while performing various fi eld and transport work activities during the period of the whole year. A analysis of the peak, maximum and minimum vibration accelerations confi rms that in the agricultural occupational environment there occurs a considerable variation of the vibration values registered. This is also evidenced by high values of the Crest Factor, sometimes exceeding a score of 10. Analysis of the registered equivalent values of vibration acceleration (frequency corrected) from the hygienic aspect showed that vibration occurring on the seats may create risk for farmers’ health while performing such work activities as: tedding and raking of hay, fertilizers spreading, soil aggregation, grass mowing and cultivation. Analysis of the spatial distribution of the measured, frequency corrected vibration accelerations indicates that considerably the highest acceleration values occur in the vertical plane (direction – Z). Literature data clearly confi rm an unfavourable effect of whole body vibration present in agricultural vehicles on discomfort and the occurrence of back pain in the operators, especially in the low back region (lumbar spine), as well as degenerative changes in the spine.
Źródło:
Annals of Agricultural and Environmental Medicine; 2007, 14, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occupational Exposure to Mechanical Vibration: The Italian Vibration Database for Risk Assessment
Autorzy:
Nataletti, P.
Marchetti, E.
Lunghi, A.
Pinto, I.
Stacchini, N.
Santini, F.
Powiązania:
https://bibliotekanauki.pl/articles/90336.pdf
Data publikacji:
2008
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
hand-arm vibration
whole-body vibration
risk assessment
vibration database
Opis:
The Italian vibration database is presented. It is hosted by a web server at the National Institute of Occupational Prevention and Safety (ISPESL) in Rome, Italy (http://www.ispesl.it/vibrationdatabase). It supports in risk assessment employers who have to comply with Legislative Decree 187/05, now replaced by Legislative Decree 81/08, which transposes into law Vibration Directive 2002/44/EC. The database currently contains measurements and EC-declared values from over 980 hand-held power tools (such as pneumatic and electric hammers, chainsaws, grinders, drills, sanders and saws) and from over 420 vehicles (such as buses, forklifts and wheel tractors). The database is continuously updated as soon as new experimental and declared data are acquired.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2008, 14, 4; 379-386
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occupational risks related to vibrations using a brush cutter for green area management
Autorzy:
Bernardi, B.
Quendler, E.
Beneila, S.
Mantella, A.
Zimbalatti, G.
Powiązania:
https://bibliotekanauki.pl/articles/2081678.pdf
Data publikacji:
2018
Wydawca:
Instytut Medycyny Wsi
Tematy:
vibration analysis
risk evaluation
work safety
brush cutter
Opis:
Introduction. Weed control is one of the most important issues in the maintenance sectors of both agriculture and green areas. Small tools are employed for controlling grass and other growths on steep verges and river banks. This leads the operators being exposed to many risks among which vibration is one. The purpose of this study is to measure and evaluate hand-arm vibration and to verify the daily exposure to which workers are often subjected while weeding. Materials and method. Two cutting heads, a brush knife and a mowing head were compared. Both were mounted on the same cow-horn brush cutter. The vibration total value was expressed as the root-mean-square (rms) of three component values according to the axes X, Y and Z. The signal was frequency weighted using the weighting curve Wh, as described in the ISO 5349–1 (2001) standard. In addition, the daily vibration exposure was calculated and compared with the thresholds set by EU Directive 2002/44/EC (2005). Results. The obtained results showed that the exposure action value (EAV) of 2.5 ms-2 was exceeded while using both cutting heads. The exposure limit value (ELV) using the brush knife also exceeded 5 ms-2. Conclusions. The results highlighted important aspects in terms of exposure values that should be considered with the view of preventing the risk of Hand-Arm Vibration Syndrome (HAVS) to which the operators who frequently use these tools are exposed. Specific measures should therefore be taken to protect the exposed workers.
Źródło:
Annals of Agricultural and Environmental Medicine; 2018, 25, 2; 255-258
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the possibility of carrying people inside military field workshops
Autorzy:
Hryciów, Z.
Rybak, P.
Wysocki, J.
Wiśniewski, A.
Michałowski, B.
Powiązania:
https://bibliotekanauki.pl/articles/246978.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
noise
vibration
military field workshop
experimental researches
risk assessment
Opis:
Military vehicles are used less intensively than the civil ones, and many types of the vehicles used by the army are stored for a long time. Therefore, this type of vehicles can be used even for a dozens of years. Due to the constant development of technology, used armament and military equipment has to be adjusted to current needs. The above applies also to recovery vehicles, including field workshops. This work analyses the level of safety and comfort of the crew of the modified field workshop (Sarna II) when the vehicle is moving under various conditions. The scope of improvement included two seats inside workshop for the transportation of the crew members. Experimental research involved measuring the accelerations on the seats of the crew and the noise inside the vehicle body. The assessment was conducted on the basis of the highest value of 8-hour of the exposure to the whole body vibrations A(8). The accelerations acting on the seats were determined mainly by the kind of the road, its roughness and the speed of the vehicle. The occupational risk connected with the exposure to the mechanical vibrations was in most cases assessed to be low or moderate. The risk was assessed to be high only when the vehicle was moving on the dirt road. Results of experimental researches indicated that passengers travelling in the body of Sarna II workshop, mounted on the underbody of STAR 266M2 vehicle, have ensured proper conditions of transport, both in terms of exposure to mechanical vibrations and to the noise.
Źródło:
Journal of KONES; 2016, 23, 3; 185-192
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sea ice management for oil and gas platforms in the Bohai Sea
Autorzy:
Zhang, D.
Yu, S.
Wang, Y.
Yue, Q.
Powiązania:
https://bibliotekanauki.pl/articles/258746.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
Bohai
sea ice management
ocean platform
ice-induced vibration
ice risk prediction
Opis:
Bohai is a typical marginal oil field in an ice region, where most of the oil and gas platforms are economical. Sea ice is the main factor that affects the safety of oil and gas platforms in Bohai. Due to the complexity of the ice load and ice-induced vibrations, there are large security risks when developing Bohai oil and gas in the winter. It is difficult to ensure the safe production of oil and gas in winter using existing sea ice disaster warning technologies. Based on winter oil and gas production in the Bohai Sea’s Liaodong Bay, a set of suitable sea ice management systems is proposed in this paper. These systems integrate sea ice monitoring, risk assessment and risk prediction technologies. Based on the risk warning system, an ice management model of a Bohai ice platform has been put into practice, which ensures the safe production of the platform in winter.
Źródło:
Polish Maritime Research; 2017, S 2; 195-204
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Szacowanie ryzyka zawodowego i ryzyka zdrowotnego związanego z działaniem miejscowych drgań mechanicznych
Estimation of occupational and health risk connected with exposure to hand-arm vibration
Autorzy:
Harazin, B.
Powiązania:
https://bibliotekanauki.pl/articles/180400.pdf
Data publikacji:
2006
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
drgania
drgania mechaniczne
ocena ryzyka zawodowego
vibrations
mechanical vibration
occupational risk assessment
Opis:
W artykule przedstawiono trzy rodzaje oceny ryzyka: ocenę zawodowego ryzyka opartego na wartościach NDN ocenę ryzyka zdrowotnego opartego na modelu matematycznym, a także ocenę ryzyka zdrowotnego weryfikowanego badaniami medycznymi.
This study discusses three kinds of risk assessment: occupational risk assessment based on threshold limit values, health risk assessment based on the dose-response model and health risk assessment verified by medical examinations.
Źródło:
Bezpieczeństwo Pracy : nauka i praktyka; 2006, 6; 8-10
0137-7043
Pojawia się w:
Bezpieczeństwo Pracy : nauka i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sposoby obniżenia poziomu drgań miejscowych w Finnveden Metal Structures
Means of decreasing the level of local vibration in Finnveden Metal Structures
Autorzy:
Orłowska, L.
Bizoń, S.
Zejma, D.
Świerk, K.
Powiązania:
https://bibliotekanauki.pl/articles/179511.pdf
Data publikacji:
2010
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
przemysł samochodowy
drgania mechaniczne
ocena ryzyka zawodowego
automotive industry
mechanical vibration
occupational risk assessment
Opis:
W artykule przedstawiono pomiary czynnika szkodliwego występującego w procesach technologicznych w przemyśle samochodowym: są to drgania mechaniczne działające na organizm przez kończyny górne, tzw. wibracje miejscowe. Pomiary wykonane w Finnveden Metal Structures na stanowisku oczyszczacza odlewów wykazywały znaczne przekroczenia dopuszczalnych wartości (wartości NDN). Po przeprowadzeniu oceny ryzyka zawodowego podjęto działania profilaktyczne i rozwiązania, które funkcjonują od czerwca 2009 r. Dzięki zastosowaniu odpowiednich modyfikacji narzędzi pneumatycznych, udało się obniżyć poziom drgań mechanicznych działających na organizm człowieka przez kończyny górne poniżej wartości NDN. Ryzyko zachorowania na chorobę zawodową, tzw. zespół wibracyjny, zostało w ten sposób znacznie zmniejszone.
This article presents measurements of a harmful agent present in technological processes in car manufacturing: hand-arm vibrations, otherwise known as local vibrations. Measurements conducted in Finnveden Metal Structures at the workstation of a founding scourer showed that Maximum Admissible Intensities (MAI) were significantly exceeded. After occupational risk was assessed, preventive measures and solutions were implemented; they have been in place since June 2009. Thanks to modifications of pneumatic devices it was possible to reduce the level of hand-arm vibrations to a level that does not exceed MAI values. The risk of an occupational disease called the vibration syndrome has therefore been significantly reduced.
Źródło:
Bezpieczeństwo Pracy : nauka i praktyka; 2010, 4; 19-23
0137-7043
Pojawia się w:
Bezpieczeństwo Pracy : nauka i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occupational Exposure to Physical Agents: The New Italian Database for Risk Assessment and Control
Autorzy:
Nataletti, P.
Bogi, A.
Borra, M.
Gioia, D.
Falsaperla, R.
Marchetti, E.
Militello, A.
Nicolini, O.
Rossi, P.
Sacco, F.
Stacchini, N.
Pinto, I.
Powiązania:
https://bibliotekanauki.pl/articles/90903.pdf
Data publikacji:
2014
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
noise
vibration
electromagnetic fields
artificial optical radiation
risk assessment
database of physical agents
hałas
pola elektromagnetyczne
promieniowanie optyczne
ocena ryzyka
Opis:
This article presents the new Italian database of physical agents, which is available at http://www.portaleagentifisici.it. It supports in risk assessment employers who have to comply with Italy’s Legislative Decree 81/2008 (transposing into law European Union Directives 2003/10/EC, 2002/44/EC, 2004/40/EC and 2006/25/EC). The database currently contains measurements and declared European Community (EC) values from over 2540 machines; in particular, the database hosts data on mechanical vibration from over 1430 hand-held power tools (e.g., pneumatic and electric hammers, chainsaws, grinders, drills, sanders and saws) and from over 1020 whole-body machines (e.g., buses, fork lifts and wheel tractors). The database is continuously updated as soon as new experimental and declared data are acquired.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2014, 20, 3; 407-420
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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