Proceedings of 13th SIRM: The 13th International Conference on Dynamics of Rotating Machinery

Motivated by the continuous development of turbo machines ranging in both size and complexity, vibration problems in rotating machinery are still a theme of high interest in both industry and academia. Large rotors of wind turbines and flywheel energy storage systems as well as small turbochargers in automotive applications highlight the spectrum of turbo machinery sizes.

The thematic of the 13th International Conference on Dynamics of Rotating Machinery (SIRM 2019) held at the Technical University of Denmark from February 13th till 15th, 2019, fits perfectly within the context of Industry 4.0, and includes:-the deep, fundamental understanding of the vibration causes and effects;-the development of computer models based on Multiphysics approaches for describing and predicting abnormal vibrational behaviors;-the mitigation and the control of vibration levels via passive and active systems;-the usage of sensor signals and big-data for mining machines' normal and abnormal behaviors aimed at monitoring and diagnosing failures, as well as validating complex Multiphysicscomputer models (digital twins)The proceedings of the 13th International Conference on Dynamics of Rotating Machinery (SIRM 2019) are structured exactly like the conference program.

The 10 main topics are: 1 Gas-foil Bearings, 2 Journal Bearings, 3 Magnetic Bearings, 4 Rotor Fluid Interaction & Instability, 5 Rotor-Foundation Dynamics, 6 Balancing, 7 Advanced Numerical Tools & Nonlinearities, 8 Active Control, 9 Analysis – Monitoring – Diagnose & Prognosis, and 10 Case Studies & Application Tools.

The technical contributions and participants come from 17 different countries, namely, Australia, Austria, Brazil, Chile, Czech Republic, Denmark, France, Germany, Greece, Israel, Netherlands, Poland, Russia, Sweden, Switzerland, United Kingdom, and the USA.As chairman of SIRM 2019, I sincerely thank all colleagues from the Department of Mechanical Engineering Department, especially Gerda Helene Fogt, Torben Bender Christensen, Frederik Bredal Merser, Magnus Bech Schouw, and Jacob Andersen Trolle, for their support with the organization of the event.

I also express my gratitude to all members of my research team, namely Ph.D. students, research assistants, Master's students, and postdocs, for their assistance and help with all technical and practical issues involved with the conference organization and laboratory visit: Michael Gani, Vergílio Torezan, Alejandro de Miguel, Thomas Thougaard Paulsen, Mikael Mosbech Eronen, Sebastian von Osmanski, Nikolaj Dagnæs-Hansen, Simon Bo Jensen, Svend Erik Andersen, Troy Snyder, Massimiliano Deon, Maria Gomez-Polo, Ignacio Escudero, Alvaro Brandes Gorriz, Aleksander Andersen, and Josephine Villefrance.The sponsorships of GEA, Bently Nevada, and Technical University of Denmark are acknowledged and very much appreciated.I wish you all a fruitful and inspiring time at the SIRM 2019 and at the Technical University of Denmark.