Wyniki wyszukiwania dla: MACHINE'S DYNAMIC STATE

• Dynamic state assessment of the water turbine with the power of 600 kW

  Publikacja

  • G. Żywica
  • P. Bagiński
  • Ł. Breńkacz

  - Diagnostyka - Rok 2013

  The article discusses the results of experimental studies to assess the dynamic state of the turbine set with the Kaplan turbine. The dynamic assessment was made on the basis of appropriate standards, based on the measurement results of selected parameters of vibration, which have been measured for several states of the machine load. In addition, we attempted to identify the causes of the increased vibration levels based on the...

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• The Design Development of the Sliding Table Saw Towards Improving Its Dynamic Properties

  Publikacja

  • K. Orłowski
  • P. Dudek
  • D. Chuchała
  • W. Blacharski
  • T. Przybyliński

  - Applied Sciences-Basel - Rok 2020

  Cutting wood with circular saws is a popular machining operation in the woodworking and furniture industries. In the latter sliding table saws (panel saws) are commonly used for cutting of medium density fiberboards (MDF), high density fiberboards (HDF), laminate veneer lumber (LVL), plywood and chipboards of different structures. The most demanded requirements for machine tools are accuracy and precision, which mainly depend on...

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• Wiktoria Wojnicz dr hab. inż.

  Osoby

  Zakład Mechaniki Stosowanej i Biomechaniki, Instytut Mechaniki i Konstrukcji Maszyn

  DSc in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2019  PhD in Mechanics (in the field of Biomechanics)  - Lodz Univeristy of Technology, 2009 (with distinction)   Publikacje z listy MNiSW (2009 - ) Wojnicz W., Wittbrodt E., Analysis of muscles' behaviour. Part I. The computational model of muscle. Acta of Bioengineering and Biomechanics, Vol. 11, No.4, 2009, p. 15-21 Wojnicz W., Wittbrodt E., Analysis...

• Dynamic variables limitation for backstepping control of induction machine and voltage source converter

  Publikacja

  • M. Morawiec

  - Archives of Electrical Engineering - Rok 2012

  Dynamic variables limitation for backstepping control of induction machine and voltage source converter The paper presents the method of control of an induction squirrel-cage machine supplied by a voltage source converter. The presented idea is based on an innovative method of the voltage source converter control, consisting in direct joining of the motor control system with the voltage source rectifier control system. The combined...

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• Machine learning-based prediction of seismic limit-state capacity of steel moment-resisting frames considering soil-structure interaction

  Publikacja

  • F. Kazemi
  • R. Jankowski

  - COMPUTERS & STRUCTURES - Rok 2023

  Regarding the unpredictable and complex nature of seismic excitations, there is a need for vulnerability assessment of newly constructed or existing structures. Predicting the seismic limit-state capacity of steel Moment-Resisting Frames (MRFs) can help designers to have a preliminary estimation and improve their views about the seismic performance of the designed structure. This study improved data-driven decision techniques in...

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• Limiting distribution of the three-state semi-Markov model of technical state transitions of ship power plant machines and its applicability in operational decision-making.

  Publikacja

  • J. Girtler

  - Polish Maritime Research - Rok 2020

  The article presents the three-state semi-Markov model of the process {W(t): t 0} of state transitions of a ship power plant machine, with the following interpretation of these states: s1 – state of full serviceability, s2 – state of partial serviceability, and s3 – state of unserviceability. These states are precisely defined for the ship main engine (ME). A hypothesis is proposed which explains the possibility of application...

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• Assessment of Failure Occurrence Rate for Concrete Machine Foundations Used in Gas and Oil Industry by Machine Learning

  Publikacja

  • P. Ziółkowski
  • S. Demczyński
  • M. Niedostatkiewicz

  - Applied Sciences-Basel - Rok 2019

  Concrete machine foundations are structures that transfer loads from machines in operation to the ground. The design of such foundations requires a careful analysis of the static and dynamic effects caused by machine exploitation. There are also other substantial differences between ordinary concrete foundations and machine foundations, of which the main one is that machine foundations are separated from the building structure....

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• Marek Czachor prof. dr hab.

  Osoby

  Instytut Fizyki i Informatyki Stosowanej

• A Universal Gains Selection Method for Speed Observers of Induction Machine

  Publikacja

  • D. Wachowiak

  - ENERGIES - Rok 2021

  Properties of state observers depend on proper gains selection. Each method of state estimation may require the implementation of specific techniques of finding those gains. The aim of this study is to propose a universal method of automatic gains selection and perform its verification on an induction machine speed observer. The method utilizes a genetic algorithm with fitness function which is directly based on the impulse response...

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• Wybrane aspekty modelowania uderzenia pojazdem dźwigara wiaduktu

  Publikacja

  • K. Daszkiewicz

  - Rok 2013

  W pracy przedstawiono różne zagadnienia związane z uderzeniem pojazdu w dźwigar wiaduktu. Omówiono wybór modelu obliczeniowego, na podstawie porównania wyników dla modelu dźwigara zespolonego, modelu dźwigara stalowego oraz modelu wiaduktu. Następnie opisano model dźwigara zespolonego zastosowany w analizie MES oraz metodę wyznaczania współczynników tłumienia Rayleigha. Symulację numeryczną uderzenia dźwigara wiaduktu przez koparkę...