Optimization of Technological Parameters of Impregnation of Load-Bearing Rod Elements of Reflector made of Polymer Composite Materials by Transfer Molding Method

Golovatov, Dmitry; Mikhaylov, Maxim; Bosov, Aleksey

doi:10.17485/ijst/2016/v9i46/107492

Cited by 12 publications

(4 citation statements)

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“…Each of these factors has a direct impact on the technological parameters of the impregnation process, and lack of their consideration in the simulation leads to a wide disagreement between the results of the simulation and actual values, as shown in works [8,15]. As can be seen from the above, the application of existing software solutions to automate the preproduction engineering of products from composite materials can be ineffective without conducting preliminary experimental studies to determine the full range of characteristics of the moldable materials, as is proven in paper [16].…”

Section: Methodsmentioning

confidence: 99%

“…Simulation results include the forecasted front of the binder distribution, dry zones, product porosity, and pressure fi eld, degree of polymerization, time and velocity of the product impregnation. This software product uses the fi nite element method (FEM) as a solver, as demonstrated in paper [8]. To determine the technological parameters of the capillary-porous materials impregnation, the mathematical model of mass transfer is used, which in general case according to papers [8][9][10] represents the following system of differential equations (1):…”

Section: Literature Reviewmentioning

confidence: 99%

“…This software product uses the fi nite element method (FEM) as a solver, as demonstrated in paper [8]. To determine the technological parameters of the capillary-porous materials impregnation, the mathematical model of mass transfer is used, which in general case according to papers [8][9][10] represents the following system of differential equations (1):…”

Section: Literature Reviewmentioning

confidence: 99%

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Application of neural simulation methods for technological parameters identification of composite products injection molding process

Alexandrov¹,

Maxim²,

Andrey³

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J Appl Eng Science

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The article presents the research results of technological parameters of composite material products manufacturing by the injection transfer molding method using automated tools of preproduction engineering. For the verifi cation of computer simulation results, experimental studies have been carried out on the injection-molding machine for products from fi brous polymer composite materials. The conducted comparative analysis of calculated and actual values of impregnation technological parameters has led us to the conclusion that for the effective application of the modern software for preproduction engineering of composite products it may be necessary to make a joint correction of the input data used for the calculation obtained from the preliminary independent experimental research of the complex of properties for each used component of the composite material. For the joint correction of the input data used for the calculation and improvement of the effi ciency of automation systems for preproduction engineering of composite products, the concept of the neural simulation tools application for the technological process of composite products manufacturing by injection molding methods has been proposed. For training and testing of the neural model, experimental studies of the impregnation of the products with the surface curvature of the second order have been conducted. The optimization problem was solved by forecasting the front movement of the technical fl uid in the volume of preforms during transfer molding.

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Section: Methodsmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Application of neural simulation methods for technological parameters identification of composite products injection molding process

Alexandrov¹,

Maxim²,

Andrey³

2020

J Appl Eng Science

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“…A common problem of designing transformable antenna reflectors is to ensure the form and dimensional stability under varying thermal regimes causing temperature deformations. In these conditions, computer modeling is required for creating rational structural and technological solutions [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Development of transformable reflectors of mirror space antennas

et al. 2019

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Currently, the task of designing large structures of space antennas is becoming increasingly important due to active research and development in the area of creating remote sensing and communication satellites. Designing such structures is a complicated task due to geometric features, a large number of joints, compactness requirements, as well as operating conditions of the outer space. These factors require special methods for assessing the workability of these structures. This paper presents the results of simulation and experimental studies aimed at creating transformable antenna reflectors. The results of choosing general structural layouts are considered. It is noted that the main reason for the reflector shape distortion is non-uniform heating by the solar radiation and radiation fluxes coming from the Earth. The paper presents the results of numerical modeling of temperature and stress-strain state of transformable antenna reflectors from metallic mesh sheet meeting the requirements for operating on the geostationary orbit.

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Ensuring dimensional stability of space platform panels by using electric heaters

Gorodetsky¹,

Mikhaylovsky²,

Резник³

2021

XLIV ACADEMIC SPACE CONFERENCE: Dedicated to the Memory of Academician S.P. Korolev and Other Outstanding Russian Scientists –

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Optimization of Technological Parameters of Impregnation of Load-Bearing Rod Elements of Reflector made of Polymer Composite Materials by Transfer Molding Method

Cited by 12 publications

References 0 publications

Application of neural simulation methods for technological parameters identification of composite products injection molding process

Application of neural simulation methods for technological parameters identification of composite products injection molding process

Development of transformable reflectors of mirror space antennas

Ensuring dimensional stability of space platform panels by using electric heaters

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