Qualification certificate - obtaining qualifications to apply for the title: "SIMP expert in specialty No. 830"

06 December 2023

Qualification certificate certifying, based on the completed specialized course on October 14 and 21, 2023, and passing the examination papers (with honours), the qualification to apply for the title: "SIMP appraiser in speciality No. 830 - valuation of machinery, equipment and vehicles", November 23, 2023, Warsaw, Poland.


My second book has been published!

07 July 2023

Tiele: Współczynniki dynamiczne łożysk

Author: Łukasz Breńkacz
Publication Date: June 1, 2023
ISBN: 987-83-66928-08-4
Publisher: Publishing House of the Institute of Fluid-Flow Machinery, Polish Academy of Sciences (April 1, 2023)

Book details

  • Language: Polish
  • Hardcover: 211 pages
  • ISBN: 987-83-66928-08-4
  • Weight: approx. 700 g
  • Dimensions: 168 x 235 mm

Patent for the invention: System and method of controlling an active foil bearing

08 April 2022

On April 8, 2022, the Patent Office of the Republic of Poland confirmed the grant of the patent number P.432715 for the invention entitled: System and method of controlling an active foil bearing. This is my first patent.


I completed seminar: Rotordynamic engineering

05 November 2021

I participate in two-day seminar: Rotordynamic engineering organized by DELTA JS AG, Zurich, Switzerland (online).

I also participate in the seminar: Rotordynamic analysis with MADYN 2000 organized by the same company one day later.


I became a SIMP Expert! (Association of Polish Mechanics Engineers and Technicians)

10 August 2021

After the verification, my SIMP Expert rights were renewed and extended. (Associety of Polish Mechanical Engineers). Now in three specializations:

202 - Strength of materials and structures

506 - Thermal fluid-flow machinery

117 - Information technology


Registration number 9947/14

The permissions are valid until the 04th of April 2026


A review article was published in the journal Mechanical Systems and Signal Processing!

13 April 2021

Research and applications of active bearings: A state-of-the-art review

Authors: Łukasz Breńkacz; Łukasz Witanowski, Marta Drosińska-Komor, Natalia Szewczuk-Krypa.
First published: 2021
Mechanical Systems and Signal Processing 151 (2021) 107423 Contents

My first book in the Wiley press is out!

13 April 2021

Bearing Dynamic Coefficients in Rotordynamics: Computation Methods and Practical Applications

First published:2 April 2021
Online ISBN:9781119759287
© 2021 John Wiley & Sons Ltd. This Work is a co‐publication between John Wiley & Sons Ltd and ASME Press