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Сообщения, помеченные ‘Trofimov A.N.’

3
Mar

Eliseev S.V., Trofimov A.N., Bolshakov R.S. Machine vibrations and dynamics: design schemes, structures and mathematical models. Part II

Machine vibrations and dynamics: design schemes, structures and mathematical models. Part II

Eliseev S.V., Trofimov A.N., Bolshakov R.S.

The paper considers the issues concerning the methodological basis for the tasks of designing mathematical models of dynamical processes in machines, equipment and apparatus interacting with the active external environment. Part I of the paper presents the generalization results of the current situation, as well as a number of statements about the future course of development in the context of vibration protection for technical facilities. The other part of the paper aims at figuring out a number of new definitions which arise in generalizing the methods of mathematical modeling for mechanical vibratory systems. A mathematical model can be represented by a structural analog of differential linear equations when considering dynamics tasks of technical facilities related to developing the ways   and means of vibration protection. Therefore, a mechanical vibratory system can be considered as an equivalent automation control system.
Keywords: mechanical vibratory systems, the ways and means of vibration protection, elemental links, structural schemes.

References

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  9. Eliseev S.V., Drach М.А. Dopolnitel’nye svjazi v krutil’nyh kolebatel’nyh sistemah [Additional ties in torsional oscillation systems] // Vestnik Irkutskogo regional’nogo otdelenija AN Vysshej shkoly RF [Bulletin of Irkutsk regional department AS Higher school RF], 2006, №2. – P. 71-82.

«Engineering industry and life safety» №3 (21), 2014. Pages: 59-68

Download full text:Eliseev S.V., Trofimov A.N., Bolshakov R.S. Machine vibrations and dynamics: design schemes, structures and mathematical models. Part II

View russian version

Eliseev Sergey Viktorovich – Professor, Irkutsk State University of Railway Transport, Irkutsk, Russia. E-mail: eliseev_s@inbox.ru

Trofimov Andrey Narjevich – PhD, Irkutsk State University of Railway Transport, Irkutsk, Russia. E-mail: trofimov_an@irgups.ru

Bolshakov Roman Sergeevich – Junior Researcher, Irkutsk State University of Railway Transport, Irkutsk, Russia. E-mail: bolshakov_rs@mail.ru

20
Jul

Eliseev S.V., Trofimov A.N., Bolshakov R.S. Machine vibrations and dynamics: design schemes, structures and mathematical models. Part I

Machine vibrations and dynamics: design schemes, structures and mathematical models. Part I

Eliseev S.V., Trofimov A.N., Bolshakov R.S.

Some of the methodological conditions of mathematical models in tasks of machines dynamics are discussed. Is shown that at all complexity of technical objects their formalized models in engineering practice often are considered abreast of systems with relatively of small number of degrees of freedom. Review of the methods in the estimation of properties of mechanical oscillation systems which are widely used as a design schemes of different technical objects, allows more clearly to determine the generalized representations about dynamical processes which are implemented in system with feedback ties. Technology of system consideration of tasks of constructions of mathematical models in form structure schemes equivalent in dynamical relation of automation control systems are offered. Directions of development of methods and means to ensuring the vibration protection objects are identified that associated with the expansion of the basic concepts of automation control theory. In first part is shown that design schemes of objects of transport dynamics at complication of technical objects begin to represent more advanced forms of dynamical interactions which creature new ties. Such ties is implemented as special constructional elements in form levers of different types, intermediate devices and large fragment of system.

Keywords: structure models of vibration protection systems, the extension of a typical elements set, structure transfor-mations, movement transformation devices, lever connections and mechanisms.

References

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«Engineering industry and life safety» №2 (20), 2014. Pages: 48-60

Download full text:Eliseev S.V., Trofimov A.N., Bolshakov R.S. Machine vibrations and dynamics: design schemes, structures and mathematical models. Part I

View russian version

Eliseev Sergey Viktorovich – Professor, Irkutsk State University of Railway Transport. E-mail: eliseev_s@inbox.ru

Trofimov Andrey Narjevich – PhD, Irkutsk State University of Railway Transport. E-mail: trofimov_an@irgups.ru

Bolshakov Roman Sergeevich – Junior Researcher, Irkutsk State University of Railway Transport. E-mail: bolshakov_rs@mail.ru