
Filtering Walls Мade of Sintered Metal Gauzes for Built-in Filters of Aviation Hydraulic Systems
Author(s) -
Новиков,
Yu. M. Novikov,
Спиридонов,
В. С. Спиридонов,
Большаков,
В И Большаков
Publication year - 2015
Publication title -
bezopasnostʹ v tehnosfere
Language(s) - English
Resource type - Journals
ISSN - 1998-071X
DOI - 10.12737/14433
Subject(s) - dimensionless quantity , materials science , deformation (meteorology) , filtration (mathematics) , porosity , mechanics , composite material , geotechnical engineering , structural engineering , engineering , mathematics , physics , statistics
Results of theoretical and experimental researches related to cold deformation degree influence when rolling on strength
and hydraulic characteristics of metal gauzes used for production of built-in filters’ filtering walls have been presented.
An analytical dependence of gauze’s permeation coefficient on the gauze’s reduction ratio and relative lengthening when
rolling has been received based on ideal porous body’s capillary model. Theoretical research results have been compared
with the experimental data obtained at filtration of compressed air and mineral oil through samples of gauzes with various
degree of cold deformation. Experimental dependences of gauzes’ relative lengthening and strength limit on their cold
deformation degree have been presented. Results of visual researches of deformed gauzes’ surface condition have been
presented. A dependence of contact spots’ square at gauzes’ surfaces on reduction ratio has been received. The analysis of
contact spots’ influence on hydraulic characteristics of the multilayered mesh material used for filtering walls production
has been carried out. Results of experimental studies of gauzes’ hydraulic characteristics have been processed in the form
of dimensionless dependence of hydraulic resistance coefficient on filtered environment stream’s Reynolds number.