Open AccessThe simulation of fluid flow in safety elements of longwall shield support hydraulic legs
Author(s) -
S. Rajwa,
Tomasz Janoszek,
Janina Świątek
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/679/1/012017
Subject(s) - shield , flow (mathematics) , hydraulic pressure , hydraulic machinery , engineering , geology , geotechnical engineering , mechanical engineering , mechanics , physics , petrology
The paper presents the research on pressure variation in elements securing the shield support against overloading. The chosen constructions of connecting pipe were analysed and its flow characteristic were determined. The operational parameters of different connections were also considered in light of their interaction with whole hydraulic control system. The results allowed to determine of the optimal connecting pipe curve with regard to the pressure in whole pressure safety system.