Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: work study

Sortuj według:

Ogranicz wyniki do:

Productivity Improvement Based on the Theory of Constraint and Eliminate, Combine, Rearrange, Simplify for Chilled Beef Production in Indonesia

Neisyafitri Rendayu Jonda, Ongkunaruk Pornthipa, Ongcunaruk Wisute

Management and Production Engineering Review

2023

Vol. 14, No. 2

111--123

This paper aims to enhance the productivity of a chilled beef production line by comparing two techniques; standard time calculation and simulation. The best improvement method was obtained using the work-study principle, a network diagram, and bottleneck identification. Two methods for improvement are proposed based on the ECRS, the Theory of Constraint (TOC), and line balancing concepts. A simulation model is developed to mimic the actual production line. The simulation results are verified, validated, and compared. Some workstations were combined, and the allocation of the workers was arranged. The present production line efficiency was 46.21%, which increased to 67.09% and 79.71% from the suggested methods. It showed that using the standard time calculation gives a different result from the simulation. In summary, the simulation model along with the application of TOC and ECRS, provides accurate information and improves overall productivity.

Obserwacja ciągła – studium przypadku operatora frezarki

Bartnicka C.

Systemy Wspomagania w Inżynierii Produkcji

2016

z. 2 (14)

20--28

W artykule przedstawiono charakterystykę obserwacji ciągłej, jednej z metod badania czasu pracy. Zaprezentowano studium przypadku wykorzystania tej metody na przykładzie stanowiska operatora frezarki CNC. Opisano całą procedurę realizacji obserwacji. W wyniku otrzymano pełny obraz przebiegu wszystkich czynności i przerw mających miejsce w trakcie procesu produkcyjnego. Obserwacja ciągła zilustrowała najczęściej powtarzające się problemy, głównie związane z organizacją pracy. Uzyskane dane z obserwacji poddano analizie. Oszacowano, że poprzez modyfikację sposobu pracy frezera oraz wprowadzenie usprawnień każdy operator może uzyskać wzrost produktywności nawet o ok. 2 wyroby więcej w ciągu zmiany roboczej. Wdrożenie zaproponowanych udoskonaleń może mieć znaczny wpływ na podwyższenie efektywności ekonomicznej całego przedsiębiorstwa.

The article presents the characteristics of continuous observation, one of the methods of work study. The material presents a case study of this method on the example of milling machine operator. The procedure of observation is described. The result was a complete picture of the course of all activities and breaks, which take place during the production process. Continuous observation illustrated the most recurrent problems, mainly connected with organization of work. The obtained data from observation was analyzed. It was estimated that by modifying the way of working milling machine operator and by the implementation of improvements each operator may obtain increasing productivity by up to approx. 2 products more during the work shift. The implementation of the proposed improvements can have a considerable impact on increasing the economic efficiency of the entire company.

An Ergonomics Study on the Prevalence of Musculoskeletal Disorders Among Indian Bus Conductors

Gangopadhyay S., Dev S., Das T., Ghoshal G., Ara T.

International Journal of Occupational Safety and Ergonomics

2012

Vol. 18, No. 4

521--530

This study was undertaken among 100 randomly selected bus conductors from 2 routes. A questionnaire study based on the modified Nordic musculoskeletal questionnaire, assessment of physical and physiological parameters, analysis of working postures and a detailed work study were performed. The analysis revealed that conductors had a work schedule of 16–18 h each day; the duration of work could vary from 15 to 20 days at a stretch. Discomfort leading to musculoskeletal disorders mainly affecting the leg (93.3%), knee (83.3%), shoulder (80%) and back areas (56.7%) had the highest 12-month prevalence rates and increased day by day.The conductors also suffered from extreme physiological stress due to prolonged working hours in hazardous standing posture conditions, excessive work pressure and minimum rest between trips. Consequently, all those factors affected their health and work performance.