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Mechanical Vibration

Mechanical Vibration

Voice Coil Displacement

  • Transfer-function Hx(f)=X(f)/U(f) between voltage and displacement
  • Linear parameters (Thiele-Small)
  • Nonlinear parameters
  • Peak, rms and dc displacement
  • Rub & Buzz analysis

Scanning Mechanical Vibration

  • Complex transfer function Hx(r, f) at point r on the radiator’s surface
  • Magnitude and phase plot
  • Animated vibration pattern
  • Distributed mechanical parameters

Vibration Analysis

  • Accumulated acceleration level AAL
  • Modal analysis (natural frequencies, modal loss factor, mode shape)
  • Radial and circumferential modes
  • Rocking modes

Scanning Geometry

  • Geometry of the surface in cylindrical coordinates
  • Export in dxf, stl and other format

Material parameters of loudspeaker parts

  • Young’s E modulus
  • Modal loss factor