Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Michael ValÁšek"'
Publikováno v:
Fluids, Vol 9, Iss 6, p 131 (2024)
Vortices belong to the most important phenomena in fluid dynamics and play an essential role in many engineering applications. They can act detrimentally by harnessing the flow energy and reducing the efficiency of an aerodynamic device, whereas in o
Externí odkaz:
https://doaj.org/article/480798d68879446d8ecd3efe20d38d8a
Publikováno v:
Applied Sciences, Vol 12, Iss 7, p 3604 (2022)
This work deals with the control of flexible structures as underactuated systems. The invariant control method performs the control of a flexible robot as a representative of an underactuated system with zero dynamics. The control input is separated
Externí odkaz:
https://doaj.org/article/b92541e532de4ceb8b46aaccfd27d479
Autor:
Zdeněk Neusser, Martin Nečas, Jan Pelikán, Jindřich Karlíček, Vít Pawlik, Petr Beneš, Martin Machálka, Zbyněk Šika, Michael Valášek
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 123:431-446
Position control of the mechanical structure with naturally limited stiffness is a common problem. Moreover, the system is usually exposed to random exciting by the external force effects and yet it is needed to hold the system in the desired positio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::877988d1ecf8537b01907479c805b07e
https://doi.org/10.1007/s00170-022-10165-8
https://doi.org/10.1007/s00170-022-10165-8
Autor:
Zdeněk Neusser, Martin Nečas, Jan Pelikán, Vít Pawlik, Petr Beneš, Jan Zavřel, Jiří Volech, Vojtěch Halamka, Martin Machálka, Michael Valášek, Zbyněk Šika
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 122:3769-3787
Undesired vibration is a common issue when dealing with manufacturing machines, especially when dealing with thin structures. To decrease the external disturbance sensitivity of such systems, represented for example by machine tool quill, the auxilia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6cc0c2b5cd2c7fcb3f445a1333d7b7b
https://doi.org/10.1007/s00170-022-10075-9
https://doi.org/10.1007/s00170-022-10075-9
Publikováno v:
Acta Polytechnica, Vol 55, Iss 6, Pp 407-414 (2015)
Parametric Model Order Reduction (pMOR) is an emerging category of models developed with the aim of describing reduced first and second-order dynamical systems. The use of a pROM turns out useful in a variety of applications spanning from the analysi
Externí odkaz:
https://doaj.org/article/f61630322a1f40ff835cca3d95c5ce40
Autor:
Zbyněk Šika, Michael Valášek, Vojtěch Halamka, Petr Beneš, Jan Moravec, Zdeněk Neusser, Tomáš Kozlok, Jan Koubek
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 115:1277-1293
The paper deals with the creation and implementation of a methodology for optimizing the parameters of cascade control of the machine tool axis drives. The first part presents the identification of a dynamic model of the axis based on experimental da
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed63f1a727ea6b871d9953da779b0300
https://doi.org/10.1007/s00170-021-07160-w
https://doi.org/10.1007/s00170-021-07160-w
Publikováno v:
Procedia CIRP. 101:154-157
This paper discusses a postprocessor for milling robots connected to additional linear machine axes where toolpath is optimized with respect to variable properties of the robot in its workspace. A toolpath optimization method is proposed based on an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50580352600acacebc6cb7169f3d2b99
https://doi.org/10.1016/j.procir.2021.02.018
https://doi.org/10.1016/j.procir.2021.02.018
Publikováno v:
IET Control Theory & Applications. 13:2620-2629
The concept of wave-based control (WBC) has been around for about two decades. It is designed primarily for controlling the end-point motions of one-dimensional lumped mass flexible chains. The systems under consideration are, therefore, severely und
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd8c550f8035a1e1d11b5b0a7b651d83
https://doi.org/10.1049/iet-cta.2018.5448
https://doi.org/10.1049/iet-cta.2018.5448
Publikováno v:
Acta Mechanica. 230:1891-1905
The fast and precise positioning of flexible mechanical structures is often corrupted by the unwanted dynamics in the form of a residual vibration. Therefore, we would like to find an appropriate control strategy that is capable to suppress this effe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb9ce2fec49d313acfd6961a0a6837df
https://doi.org/10.1007/s00707-019-2363-z
https://doi.org/10.1007/s00707-019-2363-z
Autor:
Zdenek Neusser, Michael Valášek
Publikováno v:
Acta Polytechnica, Vol 53, Iss 6 (2013)
This paper deals with controlling the swing-up motion of the double pendulum on a cart using a novel control. The system control is based on finding a feasible trajectory connecting the equilibrium positions from which the eigenfrequencies of the sys
Externí odkaz:
https://doaj.org/article/fbd31cb0ec284b22a52353d4a303d0d2