Comet SoRT™ is an integrated experimental/numerical technique for noise source identification in complex systems based on generalized nearfield acoustical holography.  SoRT allows noise source identification on complex three dimensional sources based on measurements taken in the neighborhood of noise sources. This unique tool can identify not only coherent noise sources, but also multiple incoherent and partially coherent noise sources. The development of this module was partially funded by the National Aeronautics & Space Administration (NASA).

Features

· Inverse boundary element method

· Enhanced surface potential (ESP) method

· Coherent, in-coherent and partially coherent source identification

· Mechanical and aero-acoustic source identification

· Exterior and interior domains with reflecting surfaces

· Source identification in stationary & non-stationary acoustic media

· Automatic identification of number of independent sources and partial fields for in-coherent and partially coherent sources

 

 

· Arbitrary source and measurement surfaces

 

· Extensive regularization techniques

- Damped Singular Value Decomposition (SVD)

- Tikhonov regularization

× Morozov discrepancy principle

× Generalized cross-validation

× L-Curve method

 

 

Vibration on the surface of tire

Comet SoRT

Contour pressure field from fan-noise