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
Development of a method of completing emergency rescue units with emergency vehicles
<p>The study considers the process of response of emergency rescue units to emergencies and hazardous events occurring on the territory of a city with a population of more than one million people. It has been determined...
Development оf combined method for predicting the process of the occurrence of emergencies of natural character
<p>We developed a combined method for forecasting of the process of occurrence of emergency situations of a natural character. In contrast with other methods, it makes it possible to perform a complex forecasting of emer...
Analysis of the interaction between properties and microstructure of construction ceramics
<p>We have defined the basic properties of ceramic bricks for various purposes. The microstructure and phase composition of ordinary, facing and clinker bricks were investigated. We have established the interrelation bet...
Defining the parameters for a brush with polypropylene bristle when uncovering the root system of maternal plants
<p><span style="font-family: 'Times New Roman'; font-size: small;">The paper addresses the operation of a cylindrical brush with elastic rods of bristles at the disclosure of the root system of maternal plants. It has be...
Construction of a mathematical model of extraction process in the system "solid body ‒ liquid" in a microwave field
<p>We have analyzed the extraction process in the technology of oilseed processing. This paper describes the original provisions, specificity, modern scientific schools, and the level of representation of the classic ext...