Type of Document Master's Thesis Author Mitchell, Bruce Wayne Author's Email Address none URN etd-12162013-141640 Title Determination of Acoustic Ray Paths in Enclosed Spaces Degree Master of Science Department Mechanical Engineering Advisory Committee
Advisor Name Title Charles J. Hurst Committee Member Harry H. Robertshaw Committee Member Larry D. Mitchell Committee Member Keywords
- Ray Acoustics
Date of Defense 2000-02-05 Availability restricted AbstractEquations were derived to calculate the reflection points of
acoustic rays emanating from a source to a receiver. Reflection
points for up to three reflections could be determined if the
location of the source, receiver and all reflecting surfaces were
known. Assuming a point source, the distances along the calculated
ray paths were used along with the power level of the source and
the absorptive characteristics of all the reflecting surfaces to
determine the sound pressure levels at specified receiver locations.
A computer program was developed to perform the necessary calculations
for reflection points and sound pressure levels. The output
was in the form of ray tracing plots which showed the unique reflection
paths for up to three reflections and the sound pressure levels
at each receiver location. Comparisons were made between predicted
and calculated sound pressure levels in a rectangular parallelopiped
Filename Size Approximate Download Time (Hours:Minutes:Seconds)
28.8 Modem 56K Modem ISDN (64 Kb) ISDN (128 Kb) Higher-speed Access LD5655.V855_1975.M585.pdf 4.65 Mb 00:21:32 00:11:04 00:09:41 00:04:50 00:00:24indicates that a file or directory is accessible from the Virginia Tech campus network only.
If you have questions or technical problems, please Contact DLA.