URAY

See below for some examples from our portfolio

• Loudspeaker sound radiation
• Advanced loudspeaker design
• Sound radiation from composite panel

URAY is our proprietary in house acoustic free-field solver based on the Rayleigh-Huygens integral. Although in principle only valid for plane radiators, it gives surprisingly accurate results for most radiating surfaces. In any case, it can be used advantageously in most 3D cases for comparative sound and power emission simulations, because it is very fast w.r.t. the full Helmholtz equation solvers

Features:

• Can be linked at any commercial FEM solver, using its pre- and postprocessor
• Microphones are defined in the FEM preprocessor for visual inspection, and the number is arbitrary
• 2D (axi-symmetric) or full 3D sound radiating surface of any shape
• Compatible with all material models, including composites, rubbers, visco-elastic and sandwich structures
• Calculates Sound Pressure Level (SPL), phase and acoustical center as function of frequency
• Calculates Power Level in half free field according to the international standard ISO 3745 as function of frequency
• 3D quads, triangular, hex and tet elements supported. Second order elements allowed using overlay (skin) elements
• Full complex arithmetic
• Cost of sound calculation adds max. 10% to that of mechanical calculation
• Transparent for peak/RMS units
• (Non-linear) mechanical pre-stress or pre-load,  of structure (e.g. bolts, contact, …) allowed
• Non radiating elements are automatically switched off  by using  sets•
• •Can be combined with closed-space acoustics and lumped elements if these functionalities are present in the FEM solver used
• Extensively benchmarked against NAFEMS test cases and measurements during customer projects

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See also Acoustics for more examples from our portfolio

Many more are available. Please contact us for examples with more affinity to Your needs

Please contact us if you are interested in a URAY license for Your solver

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