Stephen A. Hambric
Professor, Graduate Program in Acoustics
Associate Director, Penn State Center for Acoustics and Vibration
The Pennsylvania State University
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| Address |
Applied Research Lab
PO Box 30
State College, PA 16804
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| Office Address |
Garfield Thomas Water Tunnel Building
University Park, PA
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| Phone |
814-863-3030 |
| Fax |
814-863-5578 |
| E-Mail |
sah19@arl.psu.edu |
Dr. Stephen A. Hambric is a Professor in the Graduate Program in Acoustics, Associate Director of Penn State's
Center for Acoustics and Vibration,
and head of the Structural Acoustics Department at the Applied Research Lab at Penn State University.
He is an active member of INCE (the Institute of Noise Control Engineering) , serving as Vice
President of Conference Planning, and is the General Chair of Internoise 2012, to be held in New York City in August 2012.
He also serves on the Executive Committee of ASME's Noise Control and
Acoustics Division, and as an Associate Editor for the
ASME Journal of Vibration and Acoustics.
He is married to Kimberly Hambric, a fabric artist, and has one child - his daughter Lily.
Dr. Hambric and his family have lived in the State College area since 1997.
Dr. Hambric has written a popular two-part tutorial on Structural Acoustics for Acoustics Today magazine.
The articles are now available for downloading free of charge. Click here to access them.
Recently, one of Dr. Hambric's PhD students, Andrew Barnard, led a group of Penn State Acoustics students measuring the sound levels on the field during several Penn State football games at Beaver Stadium.
They have published their work in ASME and INCE papers, and have also received significant attention from the media. You can read or watch more about the football stadium noise work at:
You're welcome to contact Dr. Hambric to discuss your acoustics
or noise and vibration control needs, including consulting and short courses (taught at your site) or to pursue education opportunities
in acoustics at Penn State.
Research Interests | Education | Publications | Professional Affiliations | Courses Taught
Research Interests
My general interests are:
- Structural Acoustics
- Flow Acoustics
- Noise Control Engineering
I acquire funding for and direct computational and experimental structural-acoustic and hydro-acoustic projects funded by the U.S. Navy,
the U.S. Nuclear Regulatory Commission, NASA, and private industry. My current projects focus on propulsor dynamics and acoustics; pump and
compressor dynamics and acoustics; noise transmission and vibration in machinery, nuclear reactors, and piping systems; vibro-acoustics of
composite structures; and passive noise control treatments.
I have performed consulting work for many companies, including United Technologies Research Center (UTRC), Pittsburgh Plate and Glass (PPG),
United Launch Alliance (ULA), General Dynamics – Electric Boat (GDEB), and Knolls Atomic Power Lab (KAPL).
Education
D.Sc., Mechanical Engineering, 1996, The George Washington University
M.S., Mechanical Engineering, 1987, Virginia Tech
B.S., Mechanical Engineering, 1986, Virginia Tech
Recent Publications
Hambric,
"Structural Acoustics Tutorial Part I - Vibrations in Structures,"
Acoustics Today, Vol. 2, Issue 4, pp. 21-33, October 2006.
Low-resolution version (3.4 MB),
High-resolution version (15.1 MB),
Hambric and Fahnline,
"Structural Acoustics Tutorial Part II - Sound-Structure Interaction,"
Acoustics Today, Vol. 3, Issue 2, pp. 9-27, April 2007.
Low-resolution version (5.3 MB),
High-resolution version (26.4 MB),
Barnard, Hambric, and Porter,
"
Evaluation of crowd noise in Beaver Stadium during a 2009 Penn State football game,"
Acoustical Society of America 159th Meeting Lay Language Paper, April 2010.
Hambric, Boger, Fahnline, and Campbell,
"
Structure- and fluid-borne acoustic power sources induced by turbulent flow in 90 degree piping bends,"
Journal of Fluids and Structures, Vol. 26, Issue 1, January 2010.
Daley and Hambric,
"
A method to simulate structural intensity fields in plates and general structures induced by spatially and temporally random excitation fields,"
ASME Journal of Vibration and Acoustics, Vol. 131, February 2009.
Hambric, Jarrett, Lee, and Fedderly,
"
Inferring viscoelastic dynamic material properties from finite element and experimental studies
of beams with constrained layer damping,"
ASME Journal of Vibration and Acoustics, Vol. 129, pp. 158-168, April 2007.
Peltier and Hambric,
"
Estimating turbulent boundary layer wall pressure spectra from CFD RANS solutions,"
Journal of Fluids and Structures, Vol. 23, pp. 920-937, August 2007.
Daley and Hambric, "Simulating
and measuring structural intensity fields in plates induced by spatially
and temporally random excitation," ASME Journal of Vibration and
Acoustics, Vol. 127, pp. 451-457, October 2005.
Hambric, Hwang, and Bonness,
"
Vibrations of plates with clamped and free edges excited by low-speed turbulent
boundary layer flow,"
Journal of Fluids and Structures, Vol. 19, No. 1, pp.93-110, February 2004.
Conlon and Hambric, "
Predicting the vibroacoustic response of satellite equipment panels,"
Journal of the Acoustical Society of America, Vol. 113, No. 3, pp. 1455-1474,March 2003.
Professional Affiliations
Vice President for Conference Planning, Institute of Noise Control Engineering (www.inceusa.org);
Member, Noise Control and Acoustics Division Executive Committee, American Society of Mechanical Engineers (www.asme.org). Also, Associate Editor,
ASME Journal of Vibration and Acoustics.
Member, Acoustical Society of America (asa.aip.org)
Courses Taught (click to view syllabus for each course)
I teach these courses here at Penn State to our residence and distance education students. I also teach customized versions of these courses
to private industry. Please email me if you're interested in an on-site course at your company.
ACS 519 - Sound Structure Interaction
ACS 597 - Research and Writing for Acousticians
I include lots of illustrative animations of structural and acoustic wave behavior in my courses. Here's an example of how some plate modes of vibration radiate sound waves at frequencies below coincidence.
Here's an illustration of how sound waves pass through a metal plate:
Page maintained by: sah19@arl.psu.edu
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