Year 2019

• The Method of Finding the Optimal Spindle Speed When Milling Flexible Details

  Publication

  • B. Kowalska
  • K. J. Kaliński

  - Year 2019

  The paper presents a new method of vibration reduction during milling of flexible details. The method consists in selecting the optimal spindle speed, based on the natural frequency of the workpiece. For this purpose, an original method was created, which is based on minimizing the work of cutting forces in the direction of the depth of cutting. The effectiveness of the method has been proved by comparing the RMS values of vibration...

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Year 2018

• Metoda Poszukiwania Optymalnej Prędkości Obrotowej Wrzeciona Podczas Frezowania Przedmiotów Podatnych

  Publication

  • K. J. Kaliński
  • B. Kowalska

  - Year 2018

  W pracy zaproponowano nową metodę nadzorowania drgań podatnego przedmiotu obrabianego podczas frezowania, polegającą na doborze optymalnej prędkości obrotowej wrzeciona z uwzględnieniem częstotliwości drgań własnych przedmiotu. W tym celu opracowano oryginalne podejście do wyznaczania optymalnej prędkości obrotowej wrzeciona, bazujące na minimalizacji pracy sił skrawania na kierunku głębokości skrawania.

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Year 2016

• Analysis of Crash Computation on a Basis of the Pronciple of Linear Momentum and Kinetic Energy

  Publication

  • K. J. Kaliński
  • M. Chodnicki
  • B. Kowalska
  • P. Kmita

  - Year 2016

  The article shows the calculation of a vehicle crash with a fixed pile, modelled by the finite element method. There were compared during the crash simulations changes in kinetic energy, as well as – changes in linear momentum and its derivative, with respect to time. Calculations were made in the HyperWorks CAE software environment. The obtained results show influence of various body parts and devices of the deceleration on...