Leibniz Universität Hannover Faculty Faculty of Mechanical Engineering
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Institute of Dynamics and Vibration Research
 
Institute of Dynamics and Vibration Research Institute Team
Research Projects

Dynamik rotierender Maschinen

  • Robust damper design for multiharmonic excitation under flexible operations
    As part of this joint research project funded by AG Turbo, the robustness of underplatform dampers for turbine blades is being investigated with regard to an increasingly broadband frequency spectrum of vibration excitation, e.g. as a result of partial load operation. Design rules for optimized and particularly robust friction dampers are to be developed by enhancing an existing simulation tool with regard to multiharmonic excitations and validating it by means of a realistic experiment under rotation.
    Led by: Lars Panning-von Scheidt
    Team: Katharina Brinkmann
    Year: 2025
    Funding: AG Turbo
    Duration: 10/2023-02/2027
  • Experimental and numerical investigation of the vibration behavior of coupled blades
    In the project funded by AG Turbo, the friction damping of turbine blades with nonlinear shroud coupling for a variable operating mode is being investigated. For this purpose, the blading is excited at different speeds and different excitation force levels. Contact properties are varied by varying the oversize of the shrouds and their influence on the damping for several operating points is investigated experimentally and numerically.
    Led by: Lars Panning-von Scheidt
    Team: Yue Xiao
    Year: 2025
    Funding: AG Turbo
    Duration: 09/2022-04/2027
  • Nonlinear aeroelasticity and transient multiresonances
    The calculation tool RAMBO was developed as a result of various studies in the Collaborative Research Center "Regeneration of Complex Capital Goods". It can be applied to calculate the vibrations of linear, mistuned turbine stages, taking into account, for example, aerodynamic damping. In this transfer project, the application of the tool will be tested on a real structure. It will be compared with nonlinear calculations.
    Led by: Lars Panning-von Scheidt
    Team: Anna Lefken
    Year: 2025
    Funding: DFG
    Duration: 01/2023-12/2026

Kontaktmechanik und Reibung

  • Innovation Ecosystem to Accelerate the Industrial Uptake of Advanced Surface Nano-Technologies (NewSkin)
    The Institute of Dynamics and Vibrations (IDS) is working as part of the EU-funded project “NewSkin” on the creation of an Open Innovation Test Bed (OITB). The aim of this OITB is to accelerate the industrial uptake of modified surfaces by providing the necessary technologies, resources, and services for the efficient and cost-effective production of components with nano-enabled surfaces.
    Led by: Dr.-Ing. Matthias Wangenheim
    Team: M. Sc. Mirco Jonkeren
    Year: 2020
    Funding: EU
    Duration: 01.04.2020-31.03.2024
  • Pattern Mechanics in Lab 2
    The aim of this research project is to use new test methods to describe in detail the factors influencing contact between car tires and a hard-pressed snow track, on ice, wet ground and asphalt. For this purpose, the test rig developed at IDS in the previous project " Realistische Profilklotzmechanik im Labor" will be used to specifically investigate various hypotheses on force transmission between the tire tread block and the road surface using specially designed tests.
    Led by: Matthias Wangenheim
    Year: 2023
    Duration: 01.04.2022-31.03.2023

Nichtlineare Strukturdynamik

  • Influencing the dynamic properties of metamaterial structures
    In structural dynamics, metamaterials are components whose geometry can be cleverly designed to achieve special dynamic properties such as stop bands (bandgaps). By applying resonators to components, vibrations of the host structure are reduced in pre-designed frequency ranges. This concept can be used, for example, as an inverse mechanical bandpass filter in transmission paths.
    Led by: Sebastian Tatzko
    Team: Hannes Wöhler (Nichtlineare Strukturdynamik)
    Year: 2022
    Funding: DFG
    Duration: 01.04.2022-31.03.2025
  • Vibration Damping with Shunted Reluctance Force Dampers
    Within the Deutsche Forschungsgesellschaft (DFG) funded project, shunted reluctance force dampers are investigated. Reluctance force dampers work contactless and without energy supply offering various advantages, while their nonlinear behavior requires a comparatively high modeling effort. The aims of the project are to improve the calculation of the damping effect in terms of accuracy and computing time on one hand and to investigate their suitability for various damping applications on the other hand.
    Led by: Dr.-Ing. Sebastian Tatzko
    Team: Martin Jahn
    Year: 2023
    Duration: 2023-31.08.2025

Last Change: 24.01.24 Print

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