rotational testing; rotor; structural dynamic behaviour; vibration excitation; Axial displacements; Piezoelectric stack actuators; Rotating conditions; Rotating coordinate system; Rotational speed; Steel rotors; Transverse axis; Analytical Chemistry; Information Systems; Atomic and Molecular Physics, and Optics; Biochemistry; Instrumentation; Electrical and Electronic Engineering
Abstract :
[en] A vibration excitation system (VES) in a form of an active coupling is proposed, designed and manufactured. The system is equipped with a set of piezoelectric stack actuators uniformly distributed around the rotor axis and positioned parallel to each other. The actuator arrangement allows an axial displacement of the coupling halves as well as their rotation about any transverse axis. Through the application of the VES an aimed vibration excitation is realised in a co-rotating coordinate system, which enables a non-invasive and precise modal analysis of rotating components. As an example, the VES is applied for the characterisation of the structural dynamic behaviour of a generic steel rotor at different rotational speeds. The first results are promising for both stationary and rotating conditions.
Disciplines :
Mechanical engineering
Author, co-author :
Filippatos, Angelos ; Institute of Lightweight Engineering and Polymer Technology (ILK), Technische Universität Dresden, 01307 Dresden, Germany. angelos.filippatos@tu-dresden.de
Wollmann, Tino ; Institute of Lightweight Engineering and Polymer Technology (ILK), Technische Universität Dresden, 01307 Dresden, Germany. tino.wollmann@tu-dresden.de
Nguyen, Minh ; Institute of Lightweight Engineering and Polymer Technology (ILK), Technische Universität Dresden, 01307 Dresden, Germany. minh.nguyen@tu-dresden.de
Kostka, Pawel; Institute of Lightweight Engineering and Polymer Technology (ILK), Technische Universität Dresden, 01307 Dresden, Germany. pawel.kostka@tu-dresden.de
Dannemann, Martin ; Institute of Lightweight Engineering and Polymer Technology (ILK), Technische Universität Dresden, 01307 Dresden, Germany. martin.dannemann@tu-dresden.de
Langkamp, Albert; Institute of Lightweight Engineering and Polymer Technology (ILK), Technische Universität Dresden, 01307 Dresden, Germany. albert.langkamp@tu-dresden.de
Salles, Loïc ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Department of Mechanical Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK. l.salles@imperial.ac.uk
Gude, Maik ; Institute of Lightweight Engineering and Polymer Technology (ILK), Technische Universität Dresden, 01307 Dresden, Germany. maik.gude@tu-dresden.de
Language :
English
Title :
Design and Testing of a Co-Rotating Vibration Excitation System.
EPSRC - Engineering and Physical Sciences Research Council
Funding text :
Funding: The results were obtained within the international CORNET research project named: “Development of a combined numerical and experimental approach for the 3D dynamic analysis of rotating components”. This research was funded by the IGF project 151 EBR / 1 of the Forschungsvereinigung Forschungskuratorium Maschinenbau e.V. - FKM, Lyoner Straße 18, 60528 Frankfurt am Main via the AiF within the programme to promote Industrial Collective Research (IGF) by the Federal Ministry of Economic Affairs and Energy (BMWi) based on a decision of the German Bundestag. This research was funded by the EPSRC via the Industrial Cooperative Awards in Science & Technology (CASE) PhD studentship, grant number MEDY_NN0923.
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