DML-simulation-test-cases

Test cases for DML simulation development

Here are files to test DML simulators.

For each test cases, 3 files are provided :

• XXXX.txt : case parameters (see below)
• EFR_XXXX.txt : SPL at 1m measured with REW (panel in open back condition)
• Z_XXXX.txt : electrical impedance measured with REW

Warning : the SPL are from indoor measurements. The measurements were checked free of room reflection before 5ms (200Hz).

Test cases

• Isotropic materials :
  • EPS : Expended Polystyrene
  • PMMA : Acrylic
• Orthotropic materials :
  • PWD5 : Poplar plywood (3 cases with various boundary conditions, exciter positions)

Parameter file :

note : plate dimensions LXMM, LYMM in mm, other in SI units

• CASETITLE = short description
• BCOND = boundary conditions (S simply supported, C clamped, F free edge), North (top), West (left), South (bottom), East (right)
• LXMM = x axis (horizontal) plate dimension in mm (North and South edge)
• LYMM = y axis (vertical) plate dimension in mm (West and East edge)
• H = plate thickness in m
• EX = x axis Young Modulus in Pa
• EY = y axis Young Modulus in Pa
• GXY = shear modulus in Pa
• RHO = density in kg/m³
• NUX = x axis Poisson's ratio
• NUY = y axis Poisson's raitio
• ZETAMD = modal damping coefficient (=1/2Q, Q modal quality factor)
• EXTMODEL = exciter model
• POSX = x axis exciter position (decimal value from 0 = full West to 1 = full East)
• POSY = y axis exciter position (decimal value from O = full North to 1 full South)