Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: failure monitoring

Sortuj według:

Ogranicz wyniki do:

Failure monitoring of rubber products reinforced with waste fibers of tire recycling process

Rodhan Zahraa Kadhum, Abd-Ali Nabel Kadum, Al-Nesrawy Sameer Hassan

Diagnostyka

2024

Vol. 25, No. 2

art. no. 2024203

In this article, waste fibres from the recycling tire process with a different percentage of addition (0, 2.5, 5, 7.5, 10, 12.5) were mixed to increase their tensile strength, tear resistance, and bending resistance with natural rubber NR. The effect of short fiber on composite mechanical properties was investigated. Despite substantial research on the mechanical characteristics of rubber products reinforced with fiber waste, the experimental work focused on identifying precursory physical mechanisms that are responsible for fracture behavior during tests and structural monitoring. The findings reveal that milling and vulcanization conditions have a significant role in enhancing mechanical characteristics. The waste fibres and natural rubber provide strong interfacial adhesion during two rolls of milling and vulcanization at 140°C. Waste fiber may boost the tensile strength of a composite material by up to 7.5% of waste fiber, with a slight decrease at 10% and 12.5%. The flexing test findings showed that adding fiber to the recipe improved it by up to 7.5% before gradually degrading, and it is obvious that the recipes' tear resistance improves in comparison to the basic recipe. The discoveries have the potential to increase the tensile strength, tear resistance, and flexing resistance of industrially manufactured rubber conveyor belts, which are important physical properties in engineering applications.

Rozproszony system zdalnego nadzoru urządzeń telekomunikacyjnych

Mazur L., Porzeziński M.

Pomiary Automatyka Kontrola

2011

R. 57, nr 7

806-809

W artykule przedstawiono rozproszony system nadzoru przygotowany w firmie DGT do zarządzania uszkodzeniami urządzeń pracujących w ogólnopolskiej sieci telekomunikacyjnej. Opracowany od podstaw system wykorzystuje infrastrukturę i mechanizmy komunikacyjne sieci Intranet, pozwala na ciągły nadzór do kilkuset obiektów obejmujących łącznie kilkadziesiąt tysięcy nadzorowanych urządzeń (elementów składowych central i obiektów współpracujących) na terenie całego kraju. Opisano strukturę systemu, jego funkcjonalność, sposób komunikacji oraz mechanizmy bezpieczeństwa i przedstawiono możliwości dalszego rozwoju.

The paper presents a distributed supervisory system developed in the DGT Company to monitor failures of telecommunications devices in a nationwide telecommunications network. This system, developed from the ground up, allows continuous supervising of tens of thousands of supervised devices (components of telephone exchanges and other objects) throughout the country. Key issues have been resolved through use of the concept of network supervisory agents (Fig. 1), adoption of the hierarchical structure of alarm nodes (Fig. 3) and use of Web servers and Web browsers instead of the traditional SCADA application (Figs. 5 - 7). The system versatility enables developing new agents for supervising the objects of significantly different structure and functionality, without requiring any changes in the pre-existing parts of the system. The experience of several years of the system operation has shown that the developed conception is correct and the DGT supervisory system has been successfully used in several independent installations.