Article 7316

Title of the article

ENGINEERING ASPECTS OF THE DESIGN OF MICROASSEMBLIES
OPERATING UNDER DYNAMIC LOAD

Authors

Hadi Auday Shaker, assistant, University of Technology (Baghdad, Iraq), postgraduate student, Penza State University (440026, 40 Krasnaya street, Penza, Russia), aodayshaker@mail.ru
Litvinov Aleksandr Nikolaevich, doctor of technical sciences, professor, sub-department of theoretical and applied mechanics, Penza State University (440026, 40 Krasnaya street, Penza, Russia), aleksletvinov@mail.24
Yurkov Nikolay Kondrat'evich, doctor of technical sciences, professor, head of sub-department of radio equipment design and production, Penza State University (440026, 40 Krasnaya street, Penza, Russia), yurkov_NK@mail.ru

Index UDK

531.3:681.2.08

DOI

10.21685/2307-4205-2016-3-7

Abstract

Background. Mathematical modeling of dynamic processes elements microassemblages instrument devices is an actual problem, allowing the early stages of the design to make design and technological solutions to ensure the required level of vibration strength and stability microassemblages in operating conditions. The aim of this work is to improve reliability and performance characteristics of devices instrument, subject to dynamic action, design and technological methods.
Materials and methods. The article deals with micro assemblies closed type, having a rectangular shape and is subject to the action of an external harmonic vibration. Mathematical modeling of stress-strain state (SSS) micro assemblies and its elements are achieved with use of finite element method, implemented in ANSYS package, in view of the fact that micro-structures are heterogeneous. Recommendations are given for the design of these type microassemblies.
Results. The developed complex modeling software and the numerical study of the spectrum of the natural frequencies and the SSS of the elements with micro vibration loading. Investigatedwaveform and spectrum of natural frequencies, as well as the position of the most loaded zones microassemblages elements, in which it is possible the emergence and development of latent defects.
Conclusions. The numerical studies have shown that for vibration resistance and stability of metrological characteristics microassembly necessary at the design stage to carry out mathematical modeling of elements microassembly under real operational impacts.

Key words

micro assembly, heterogeneous structure, natural frequencies, mode shape, the stress-strain state, vibration resistance, vibration strength, instrument device.

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Дата создания: 28.09.2016 15:18
Дата обновления: 29.09.2016 15:31