Please use this identifier to cite or link to this item: http://dspace.khntusg.com.ua/handle/123456789/650
Title: Определение коэффициента готовности при использовании плановых пауз в работе для восстановления машины
Other Titles: Determining of machine availability when taking the scheduled breaks during the recovery work
Authors: Шевченко, С. А.
Keywords: надежность;коэффициент готовности;машина;требуемое время;пауза;отказ;время восстановления;наработка между отказами;reliability;availability;machine;required time;break;failure;time to recovery;operating time between failures
Issue Date: 2016
Publisher: ХНТУСХ
Citation: Шевченко С. А. Определение коэффициента готовности при использовании плановых пауз в работе для восстановления машины. Технічний сервіс агропромислового, лісового та транспортного комплексів. 2016. № 5. С. 210-221.
Series/Report no.: Технічний сервіс агропромислового, лісового та транспортного комплексів, № 5
Abstract: Получены зависимости доли времени восстановления машины, которая приходится на рабочую смену, в зависимости от закона распределения времени восстановления, длительности рабочей смены и длительности паузы. Это позволяет определять коэффициент готовности в зависимости от указанных факторов и наработки между отказами. Приведены.результаты моделирования при распределения времени восстановления по показательному закону и закону Вейбулла
Subject of research is a machine, which periodically operates. The operating cycle consists of the working shift and scheduled break. The repair of machine is performed immediately after the failure and continued to its recovery (the repair is carried out during the scheduled breaks). Article objective consists in the determination of dependence between the machine availability, operating time between failures, time to machine recovery and the duration of working shift and scheduled break. The processes of machine operation and recovery feature either deterministic or stochastic components. The dependence of the machine availability on the operating time between failures, time to recovery and fractions of time to machine recovery, which are accounted for the working shift, is determined. In addition, the dependences of the fractions of time to machine recovery (accounted for the working shift) on the distributive law of time to recovery, duration of working shift and scheduled break are defined. This enables to determine the availability in accordance with the indicated factors and operating time between failures. The numerical simulation of impact of the time to recovery and the duration of shifts and breaks on the fraction of average time to recovery, which is accounted for the working shift, is carried out. Simulation data with the time to recovery distributed in accordance with the exponential rule and Weibull law are presented. If the average time to machine recovery exceeds 50% of the operating cycle duration, the indicated fraction may be equated with the fraction of shift in the operating cycle.
URI: http://dspace.khntusg.com.ua/handle/123456789/650
ISSN: 2311-441Х
Appears in Collections:№ 5

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