Abstract #3089
Accurate Vibroacoustic Simulations in High Performance Gradient Coils
Simone Angela Winkler 1 , Trevor P Wade 2 , Andrew Alejski 2 , Charles McKenzie 2 , and Brian K Rutt 1
1
Dept. of Radiology, Stanford University,
Stanford, CA, United States,
2
Robarts
Research Institute, The University of Western Ontario,
London, Ontario, Canada
We present a comprehensive modeling approach for
acoustic noise in MR gradient coils that includes
previously neglected but essential factors. Our
simulation environment is the most complete developed to
date for vibroacoustic gradient coil simulations,
incorporating such features as full structural-acoustic
coupling. We have used this new simulation environment
to model realistic head and body gradient coils, and
have used experimental measurements to demonstrate
accurate prediction of acoustic and vibration spectra
and spectrally averaged levels. This new simulation
environment has great potential for the accurate
prediction and ultimately reduction of acoustic and
vibration levels in high performance gradient systems.
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