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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