Goals and idea

Vibrations play the central role with regard to the service life of components or their structural behaviour. The following focal points are to be mentioned:

  • Training of students in the field of mechanical and automotive engineering, both in basic subjects such as dynamics and in special disciplines such as test engineering and fatigue strength
  • Experimental and computational determination of service life (determination of component stress, fatigue strength tests / fracture mechanics)
  • Investigation of the vibration behaviour (operational vibration analysis, modal analysis, mobile measurement data acquisition)
  • Simulation of dynamic systems
  • Component optimizations
  • Verification of calculation/simulation models
  • Construction of test facilities up to the road simulator

Laboratory C022

Laboratory equipment and activities

Equipment and function

The existing equipment is operated in cooperation with the neighbouring laboratory "Lightweight Design and Car Body Technology" C021.
Servo-hydraulic testing equipment:

  • Hydropulse linear cylinder (from 7 to 630kN)
  • Hydropulse rotating cylinder (2 kNm, +- 50°)
  • Regulation and control unit (multi-channel)
  • Load portal and various load frames
  • Hydraulic supply units
  • Sprung foundation, crane system

High speed tensile testing machine:      

  • Load frame with hydraulic cylinder (40kN, 20m/s)
  • Regulation and control unit
  • High-speed camera

Electrodynamic shakers:

  • Shakers (from 9N/18kHz to 6kN/3kHz)
  • Regulation and control unit
  • Modal analysis system

Servopneumatic testing device:

  • Servopneumatic test cylinders (0.8 to 5 kN)
  • Regulation and control unit

Electric rotary actuator:

  • Speed controlled asynchronous motor with cyclo gear incl. speed and torque measurement
  • Performance data: 11 kW, 2410 Nm, 73 rpm

Measuring equipment:

  • Strain gauge measurement technology (strain gauge and bridge amplifier) for strain measurement
  • Sensors and measuring amplifiers for measuring forces, torques, pressures, displacements, speeds and accelerations
  • Optical 3D measuring system
  • High-speed camera
  • Telemetry system (1 channel)
  • Laser Vibrometer
  • Mobile measurement data acquisition systems
Software
  • DiaDEM, Catman, TestLab, TestXpress, ...(acquisition and analysis of measurement data in time, frequency and frequency domain)
  • Modulogic Studio, RSBas Test(Test Program Generation)
  • RS LabSite TWR(Tracking tests, simulator)
  • TestLab(structural investigations / modal analysis)
  • PONTOS, TRITOP (optical 3D measurement of object coordinates, movements and vibrations)
  • ARAMIS (together with the laboratory "Materials Engineering") (optical 3D deformation analysis)
  • SimulationX, Matlab/Simulink (simulation of vibration processes)
Courses

Practical trainings accompanying the lectures:

  • Engineering Mechanics (Dynamics)
  • Machine Dynamics
  • Introduction of testing technology and fatigue strength
  • Testing Technology
  • Dynamics and vibration engineering
  • Practical training motorcycle
  • Lightweight construction
  • Engineering training

Other activities:

  • Study projects
  • Theses (Bachelor & Master)
  • Industrial Projects
  • Special events: e.g. university information days, Girls Day, Technology Day, school classes
Research
  • Dynamic tensile tests
  • Determination of a strain rate-dependent material behaviour
  • Testing concepts for ceramic brake discs (dynamic pressure tests, durability tests)
  • Vibroacoustic investigations of metal cushion dampers
  • Test concepts for a planetary gear series (design, construction and commissioning of the test equipment)
  • Modal analytical investigations on a pump unit
  • Investigation of screw connections
  • Determination of dynamic characteristic values for various components/machines:

      - Acceleration measurement on hydraulic hammers

      - Evaluation of damping systems

      - drop tests with supercaps (capacitors)

      - Investigation of the vibration loading capacity of voltage transformers

      - Stiffness tests on generator coils

      - Determination of the housing stiffness of robot gearboxes

      - Determination of dynamic characteristic values of wire rope springs

Laboratory management and team

Prof. Dr.-Ing. Gerald Sitzmann
Phone: +49 841 9348-2320
Room: A218
E-Mail:
Prof. Dr.-Ing. Prof. h.c. Jörg Kessler
Phone: +49 841 9348-3690
Room: A123
E-Mail:
Vice dean of the Faculty of Mechanical Engineering
Prof. Dr.-Ing. Jörg Bienert
Phone: +49 841 9348-7720
Room: A118
E-Mail:
Deputy Women's Representative, Programme director and Academic advisor Automotive Engineering
Prof. Dr.-Ing. Manuela Waltz
Phone: +49 841 9348-3530
Room: A232
E-Mail:
Programme director and Academic advisor Mechanical Engineering (Bachelor)
Prof. Dr.-Ing. Thomas Binder
Phone: +49 841 9348-3070
Room: A218
E-Mail:
Prof. Dr.-Ing. Ludwig König
Phone: +49 841 9348-4400
Room: A230
E-Mail:
Prof. Dr.-Ing. Christian Krä
Phone: +49 841 9348-2570
Room: A119
E-Mail:
Programme director and Academic advisor Material Science in Engineering (Master)
Prof. Dr.-Ing. Ulrich Tetzlaff
Phone: +49 841 9348-3520
Room: A232
E-Mail:
Prof. Dr.-Ing. Uli Burger
Phone: +49 841 9348-4321
Room: A230
E-Mail:
Prof. Dr.-Ing. Rudolf Dallner
Phone: +49 841 9348-2390
Room: A201
E-Mail:
Prof. Dr.-Ing. Christian von Perponcher
Phone: +49 841 9348-3880
Room: A203
E-Mail: