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Ograniczenie sprawności w zakresie wybranych parametrów biomechanicznych i sensorycznych u pracowników 50+.Wstępna analiza badań własnych

Tokarski Tomasz, Kędzior Krzysztof

Bezpieczeństwo Pracy : nauka i praktyka

2025

nr 7

20-24

Wraz z wiekiem pracownika zmienia się wiele parametrów mających wpływ na jego warunki pracy, w tym m.in. parametry biomechaniczne, takie jak siła czy równowaga, oraz parametry sensoryczne, takie jak wzrok i słuch. U pracowników w wieku 50+ te zmiany zaczynają być zauważalne. Badania w grupie 110 osób (54,5 ±4 lata), przeprowadzone przez Centralny Instytut Ochrony Pracy - Państwowy Instytut Badawczy (CIOP-PIB), wykazały, że wielkość tych zmian w przypadku osób od 50. do 65. roku życia ma znaczenie dla bezpieczeństwa pracy i ergonomii.

Many parameters that affect working conditions change with age of employee, including biomechanical parameters such as strength and balance, as well as sensory parameters such as vision and hearing. Changes in these parameters in employees aged 50+ are beginning to be noticeable. on a group of 110 people (54.5 ±4 years old), conducted by the Central Institute for Labor Protection - National Research Institute (CIOP-PIB), showed that the size of these changes in the case of people aged 50 to 65 is important for work safety and ergonomics.

Impact Loads and Crash Safety of the Cockpit of a Composite Glider

Lindstedt Łukasz, Rodzewicz Mirosław, Rzymkowski Cezary, Kędzior Krzysztof

Fatigue of Aircraft Structures

2019

Iss. 11

39--55

One major problem associated with gliding is the safety of the crew during landings in the country outside the airfield. The analysis of glider-accident statistics shows that such out-landings may significantly influence the safety. Therefore, of vital importance are the crashworthiness properties of the glider fuselage structure. The subject of the study was the PW-5 glider fuselage made of composites and subjected to high loads typical of glider crashes. The aim was to provide experimental data for validation of a numerical model of the cockpit-pilot system during impact. Two experimental tests with the composite glider cockpit were performed using a typical car-crash track. During the first test the cockpit with a dummy inside was crashed onto the ground at the angle of 45 degrees at a speed of 55 km/h. Accelerations and deformations at chosen points in the cockpit as well as signals coming from the dummy sensors and forces in the seat belts were recorded. The second test was an impact into a concrete wall at a speed of about 80 km/h. The full-scale tests were accompanied by a number of quasi-static and dynamic laboratory tests on samples of composite material. The experimental tests provided valuable results for the parametrical identification of a simulation model developed using the MADYMO software.