Geometrical modeling of the process of weaving a wire cloth in weightlessness using the inertial unfolding of a dual pendulum
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 1, Issue 7
Abstract
<p>We proposed a geometrical model for weaving a wire cloth using the oscillations of a system of two-link pendulums within an abstract plane and under conditions of weightlessness. It is expected to initiate oscillations through the application of pulses to each of the nodal elements of each of the pendulums, induced by two pulse jet engines. The pendulums are arranged in line on the platform, aligned with an abstract plane. The plane moves in the direction of its normal using the jet engines. Attachment points of the dual pendulums are selected so that when unfolded their last loads come into contact. Upon simultaneous initiation of oscillations of all pendulums and setting the platform in motion, we consider traces from the spatial displacements of the last loads of pendulums. It is assumed that wire that accepts the shape of the specified traces comes from the last loads and forms the zigzag-like elements of the mesh. In order to fix elements of the mesh, it is suggested that they should be point welded at the moments of contact between the last loads of the pendulums. A description of the inertial unfolding of dual pendulums is compiled using a Lagrange equation of the second kind, in which potential energy was not taken into consideration because of weightlessness. Reliability of the considered geometrical model for weaving a wire cloth was verified in a series of created animated videos that illustrated the process of formation of the elements of a wire cloth. Results might prove useful for designing large-sized structures in weightlessness, for example, antennas for ultralong waves.</p>
Authors and Affiliations
Leonid Kutsenko, Oleg Semkiv, Olga Shoman, Andrii Kalynovskyi, Mykhailo Piksasov, Irina Adashevska, Inessa Shelihova, Olena Sydorenko
Astabilizing system for butter pastes based on the dry concentrates of milk protein
<p>The composition of the stabilizing system for butter pastes based on dry concentrates of milk and whey proteins has been substantiated; that would help reduce the deficiency of protein in the diet of modern human and...
Processes of biological wastewater treatment for nitrogen, phosphorus removal by immobilized microorganisms
<p>Parameters of the biotechnology of wastewater treatment for nitrogen and phosphorus removal using immobilized microorganisms are investigated. The acutest problem of municipal wastewater treatment is the low removal e...
Stabilization of the natural color of sweet pepper (Capsicum annuum L.) during its processing
<p class="a">The influence of various parameters of technological treatment on the degree of chlorophyll destruction and change in the green coloration of the sweet pepper (Capsicum annuum L.) has been investigated. It h...
Study of the influence of oxidizing parameters on the composition and morphology of Al2O3•CoOx coatings on AL25 alloy
<p>The influence of operating parameters of plasma-electrolytic oxidation in diphosphate cobalt-containing electrolyte on the process of formation of oxide coatings on alumosilicon alloy AL25 (GOST 1583) was studied. It...
A study of the effect of cycling modes on the electrochromic properties of Ni(OH)2 films
<p>As a result of conducted studies, a series of electrochromic Ni(OH)<sub>2</sub> films were prepared using the cathodic template method under the same conditions. Prepared films have been used for comparison of regimes...