Prof. Dr.-Ing. Sabine Langer

Prof. Dr.-Ing. Ulrich Römer

Prof. Dr.-Ing. Michael Müller

Center for Acoustics & Dynamics
Langer Kamp 19
38106 Braunschweig
ttz-akustik@itubs.de

Services

  • Excitation by shaker, (automatic) impulse hammer and coil
  • Measurement of forces, impedances, accelerations, sound pressures, etc.
  • Distribution of the surface velocity using a laser scanning vibrometer
  • Determination of transfer functions
  • Absorption coefficient in the impedance tube (DIN 10534-2)
  • Sound transmission coefficient in the impedance tube (ASTM E2611-09)
  • Flow resistance with alternating current method (ISO 9053-2)
  • Tortuosity (indirect)
  • Viscosity and thermal characteristic length (indirect)
  • Frequency-dependent flexural modulus of elasticity and loss factor (on beam-shaped specimens DIN EN ISO 6721-3)
  • Static tensile and flexural modulus of elasticity (e.g. EN ISO 527-1, DIN EN ISO 178)
  • Consulting and individual training on modeling approaches
  • Analytical, empirical and numerical models
  • Finite element simulations (e.g. Abaqus or in-house code)
  • Implementation of post-processing routines for calculation results
  • Implementation of signal analysis chains for measurement data
  • Python, C++, MATLAB, Excel (VBA)