Arrays of transducers can be used to produce extra radiated power and directivity. If the transducers are all well separated then the design could be done using ideal, non-interacting, point sources, each with the directivity of a single transducer. However in some cases it is required that the array be compact, closely spaced transducers are inevitable, and these will interact through the acoustic medium. Finite/boundary element modelling techniques naturally take these interactions into account and can thus be used as a design tool even when the system is so complex that intuition is unreliable.
Features of PAFEC VibroAcoustics for Array Design
- all functionality available for single transducer
- mutual impedance computation
- axially periodic analysis, for long line arrays
- doubly periodic analysis for periodic planar arrays
- optimization facility to adjust position automatically
Pressure distribution around a diamond array of ring transducers
The interaction between transducers can be affected by the level of damping.
Examples: