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Modeling stage mechanical characteristics radio electronic module third level

Keywords:

P.V. Ievlev – student of department chair design and manufacture of radio, Voronezh State Technical University. E-mail: ievlev92@mail.ru
A.I. Klimov – Dr. Sc. (Eng.), professor of the chair of info communication systems and technologies of Voronezh Institute of the Interior of Russia. E-mail: kipr@vorstu.ru
A.V. Muratov – Dr.Sc. (Eng.), professor of design and production of radio, Voronezh State Technical University
Yu.V. Sidorov – Dr.Sc. (Eng.), JSC «Sozvezdie» Concern»
A.V. Turetsky – Ph.D. (Eng.), senior lecturer, designing and manufacture radio equipment chairs of the Voronezh state technical university. E-mail: tav7@mail.ru


Radio equipment to be installed on moving objects, subjected to intense mechanical stresses that cause 30…50% of all failures. Deterioration of reliability and stability of the equipment caused by mechanical impacts, the most dangerous of which are vibration, shock and linear load. Application of mathematical modeling of mechanical processes in the design of radio electronic means (REM) can reduce the number of intermediate variants REM structures, time and costs to develop, conduct virtual testing device in the initial stages. This leads to a significant reduction in time and cost to the real test of conducted under laboratory conditions. The article provides a process structure simulation of mechanical characteristics of radio modules in the third level: Review of existing standards, typical designs, the choice of the basic design decisions, building sketch design; Construction of a virtual 3D model based on CAD/CAE systems (eg complex Pro / ENGINEER; Data input design (materials, design parameters and individual items); Choose the type of exposure (harmonic vibration, single or repeated exposure to shock, vibration, linear acceleration, acoustic noise) and boundary conditions; Input parameters of exposure (exposure function of the amplitude of the frequency or time) and boundary conditions; The choice of the spatial direction of impact; Calculation of the system response to mechanical stress; Visualization of the results; Based on a comparison of output mechanical characteristics and their allowable values decision to change the design (optimization) and repeated exposure modeling, or a report is the establishment of appropriate drawings mechanical fields and building the necessary schedules.
References:

 

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June 24, 2020
May 29, 2020

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