Search results for: bearing system design

• Fuzzy reasoning system design and assessment of load-bearing endoprostheses and their fabrication processes

  Publication

  • S. Sobieszczyk

  - ARCHIVES OF METALLURGY AND MATERIALS - Year 2012

  Zaproponowano piec zastosowan podejscia rozumowania rozmytego do rozwiazania problemów w dziedzinie biomechanikioraz inzynierii biomateriałów. Obejmuja one: (A) oszacowanie maksymalnych naprezen kontaktowych działajacych naendoproteze, (B) zaprojektowanie procesu spiekania dla otrzymania porowatego implantu, (C) opracowanie planu utleniania wcelu otrzymania struktury nanorurkowej na stopach Ti, (D) oraz (E) zaprojektowanie osadzania...

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• FORMAL METHODS IN SYSTEM DESIGN

  Journals

  ISSN: 0925-9856 , eISSN: 1572-8102

• Combined thrust radial bearing of a submarine main shaft – Design and analysis of failure

  Publication

  • M. Wasilczuk
  • F. Wasilczuk

  - ENGINEERING FAILURE ANALYSIS - Year 2020

  This paper presents an analysis of the combined thrust radial bearing of a submarine propulsion shaft. The lubrication system of the bearing is based on a fixed ring. The efficiency of the lubrication system depends on the shaft speed and temperature, which affects oil viscosity. In turn, the thrust bearing load also depends on the rotational speed of the shaft, because as the speed increases, the drag of the ship increases simultaneously,...

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• DESIGN AND THEORETICAL ANALYSIS OF A PROTOTYPE TILTING-PAD RADIAL BEARING WITH ADJUSTABLE CLEARANCE

  Publication

  • A. Olszewski
  • G. Żywica
  • T. Żochowski

  - TRIBOLOGIA - Year 2020

  The article introduces a design and analysis results of a prototype ORC (organic Rankine cycle) turbo generator rotor assembly of 300kW power, supported by tilting-pad bearings of original design. The calculations were performed for a prototype turbo generator rotor. The shaft of this machine is supported with two radial bearings, lubricated with an unusual lubricant – a low-boiling-point agent. The main objective of the presented...

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• Chapter 2: Modelling and analysis of rotor with magnetic bearing system

  Publication

  • C. Orlikowski
  • R. Hein

  - Year 2008

  The paper is concerned with rotor magnetic bearing system modelling. Such system is a relatively complex electromechanical system and can be considered as typical mechatronic one. The port-based modelling of physical systems has been used to obtain discrete-continuous model of considered system. Proposed approach enables to obtain reduced low-order lumped parameter representation of the system including gyroscopic interactions....

• Influence of an applied bearing system on behaviour of multi-span footbridge

  Publication

  • M. Miśkiewicz
  • Ł. Pyrzowski

  - Year 2018

  The cycle overpass in Gdynia is a box structure over 300 metres long, 10-span. It was opened for bicycle traffic in the second half of 2013. At the end of its construction, there was failure due to excessive horizontal displacement of the system. A number of bearings exceeded the range of permissible transverse shifts thus it was necessary to temporarily protect the spans from slipping. The FEM analysis of the original solution...

• ANALYSIS OF THE POSSIBILITIES OF HIGH SPEED SHAFT BEARING SYSTEM DURABILITY INCREASE

  Publication

  • B. Bartosz
  • R. Gawarkiewicz
  • M. Wasilczuk

  - TRIBOLOGIA - Year 2016

  During the operation of wind turbines with a gearbox of traditional configuration, a high failure rate of high-speed shaft bearings is observed. Such a high failures frequency is not reflected in standard bearing durability calculation methods, which can be attributed to atypical failure mechanism. To avoid observed problems in the 1.5 MW wind turbine, the modification of the existing bearing system is proposed. Multiple options,...

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• International Journal of Information System Modeling and Design

  Journals

  ISSN: 1947-8186 , eISSN: 1947-8194

• IPSJ Transactions on System LSI Design Methodology

  Journals

  ISSN: 1882-6687

• Analysis of Failures of High Speed Shaft Bearing System in a Wind Turbine

  Publication

  • M. Wasilczuk
  • R. Gawarkiewicz
  • B. Bastian

  - Year 2018

  During the operation of wind turbines with gearbox of traditional configuration, consisting of one planetary stage and two helical stages high failure rate of high speed shaft bearings is observed. Such a high failures frequency is not reflected in the results of standard calculations of bearing durability. Most probably it can be attributed to atypical failure mechanism. The authors studied problems in 1.5 MW wind turbines of...

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