Search results for: RUN FLAT

• INNOVATIVE RUN FLAT SYSTEMS

  Publication

  • P. Stryjek
  • T. Nikisz
  • K. Omyliński
  • J. Ejsmont

  - Journal of KONES - Year 2015

  One of the most essential threats to the mobility of wheeled vehicles is their relatively high sensitivity to tire damage. Tires can be damaged as a result at vehicle-targeting fire, after running on a mine or an improvised charge. The purpose of the article is to analyze the current technical solutions in wheeled vehicle tires, allowing for the unobstructed use of the vehicle despite the damage of one or several tires (RUN FLAT...

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• Analysis of Rolling Resistance of Tires With Run Flat Insert

  Publication

  • J. Ejsmont
  • J. Jackowski
  • W. Luty
  • G. Motrycz
  • P. Stryjek
  • B. Świeczko-Żurek

  - Key Engineering Materials - Year 2014

  Run flat properties are required for tires intended for special applications like military or rescue vehicles. Run-Flat inserts make possible to drive a car or truck, with certain restrictions, also when inflation pressure is very low or non-existing (after tire damage). Rolling resistance of tires rolling the inserts increases considerably in relation to the rolling resistance of properly inflated tires. This paper presents results...

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• Research on operational characteristics of tyres with run flat insert

  Publication

  • G. Motrycz
  • P. Stryjek
  • J. Jackowski
  • M. Wieczorek
  • J. Ejsmont
  • G. Ronowski
  • S. Sobieszczyk

  - Journal of KONES - Year 2012

  The paper describes results of research on heavy vehicle tyre with Run Flat VFI insert. The experiment has included the determination of heat generation, rolling resistanceand radial stifnessof two different tyre designes (textile and steel carcass). The results have been used for the purpose of ewalution of tyre operating characteristics. The study included research on non-inflated tyre properties. The purpose of the paper is...

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• ANALYSIS OF ROLLING RESISTANCE OF TIRES WITH RUN FLAT INSERT APPLYING DRUM METHOD AND RADIAL CHARACTERISTIC

  Publication

  • J. Ejsmont
  • B. Świeczko-Żurek
  • J. Jackowski
  • W. Luty
  • P. Stryjek

  - Year 2013

  This paper presents analysis of rolling resistance of tires with RUN FLAT insert applying drum method and radial characteristic. The conducted studies indicated changes in operational properties of wheel, occurring as a result of inflation pressure drop in the wheel. As regards radial elasticity, such changes result in significant drop of radial rigidity and increase of static deflection and increase of tire rolling resistance....

• Laboratoryjne badania oporu toczenia i temperatury opon do pojazdów specjalnych

  Publication

  • J. Ejsmont
  • G. Motrycz
  • G. Ronowski
  • P. Stryjek
  • S. Sobieszczyk

  - Year 2012

  W pracy przedstawiono wyniki laboratoryjnych badań oporu toczenia i temperatury opon do pojazdów specjalnych. Współczynnik oporu toczenia tych opon jest silnie uzależniony od ciśnienia pompowania. Po utracie nadciśnienia w oponie, gdy następuje styk wewnętrznej powierzchni bieżnika z wkładką Run-Flat, opór toczenia wzrasta około 7-8 razy w stosunku do sytuacji gdy ciśnienie pompowania jest wyregulowane do jazdy po drogach utwardzonych...

• PREDICTION OF SHIP MOTIONS IN IRREGULAR WAVES BASED ON RESPONSE AMPLITUDE OPERATORS EVALUATED EXPERIMENTALLY IN NOISE WAVES

  Publication

  • S. Bielicki

  - Polish Maritime Research - Year 2021

  The most common methods for predicting ship roll motions in a specified sea state are direct measurements of motions in a representative irregular wave realisation (time domain) or calculations of motions from response amplitude operators (RAOs) in the frequency domain. The result of the first method is valid only for the tested sea state, whilst the second method is more flexible but less accurate. RAO-based predictions are calculated...

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