• 155 Citations
  • 6 h-Index
20072019
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Research Output 2007 2019

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Conference contribution
2019

Acoustic excitation of a flanged joint

Jerome, T. W., Shepherd, M. R. & Hambric, S. A., Jan 1 2019, Nonlinear Dynamics - Proceedings of the 36th IMAC, A Conference and Exposition on Structural Dynamics 2018. Kerschen, G. (ed.). Springer New York LLC, Vol. 1. p. 211-224 14 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Flanges
Acoustics
Rivets
Hammers
Bolts

Experimental Demonstration of a Tunable Acoustoelastic System

Fowler, D., Lopp, G., Bansal, D., Schultz, R., Brake, M. & Shepherd, M. R., Jan 1 2019, Rotating Machinery, Vibro-Acoustics and Laser Vibrometry, Proceedings of the 36th IMAC, A Conference and Exposition on Structural Dynamics 2018. Di Maio, D. (ed.). Springer New York LLC, p. 179-189 11 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Demonstrations
Acoustics
Dynamic response

Numerical Modeling of an Enclosed Cylinder

Schultz, R. & Shepherd, M. R., Jan 1 2019, Rotating Machinery, Vibro-Acoustics and Laser Vibrometry, Proceedings of the 36th IMAC, A Conference and Exposition on Structural Dynamics 2018. Di Maio, D. (ed.). Springer New York LLC, p. 191-197 7 p. (Conference Proceedings of the Society for Experimental Mechanics Series).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fluids
Analytical models
Boundary conditions
Hardware
2017

Estimating material wavespeed using the wavenumber transform of rectangular plate mode shapes

Shepherd, M. R., Jan 1 2017, Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics and Laser Vibrometry - Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics. Springer New York LLC, Vol. 8B. p. 41-46 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hammers
Modal analysis
Frequency response
Natural frequencies
Damping
1 Citation (Scopus)

Vibration amplitude and fastener torque dependence of damping in a jointed structure

Jerome, T. W., Hambric, S. A. & Shepherd, M. R., Jan 1 2017, 29th Conference on Mechanical Vibration and Noise. American Society of Mechanical Engineers (ASME), (Proceedings of the ASME Design Engineering Technical Conference; vol. 8).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fasteners
Vibrations (mechanical)
Torque
Damping
Vibration
2014
2 Citations (Scopus)

Quieting a rib-framed honeycomb core sandwich panel for a rotorcraft roof

Hambric, S. A., Shepherd, M. R., Snider, R. & May, C., Jan 1 2014, INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control. Davy, J., Burgess, M., Don, C., Dowsett, L., McMinn, T. & Broner, N. (eds.). Australian Acoustical Society, (INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

honeycomb cores
rotary wing aircraft
roofs
transmission loss
static loads
2013
3 Citations (Scopus)

Vibro- Acoustic measurements and simulations of a rib-framed honeycomb core sandwich panel

Hambric, S. A., Shepherd, M. R., May, C. & Snider, R., Jan 1 2013, 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life. OAL-Osterreichischer Arbeitsring fur Larmbekampfung, p. 4059-4068 10 p. (42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life; vol. 5).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

honeycomb cores
acoustic simulation
acoustic measurement
acoustics
transmission loss
2012

An approach for structural-acoustic optimization of ribbed panels using component mode synthesis

Shepherd, M. R. & Hambric, S. A., 2012, 41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012. Vol. 8. p. 6189-6194 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

optimization
acoustics
synthesis
evaluation
design optimization
4 Citations (Scopus)

An approach for structural-acoustic optimization of ribbed panels using component mode synthesis

Shepherd, M. R. & Hambric, S. A., Dec 1 2012, ASME 2012 Noise Control and Acoustics Division Conference at InterNoise 2012, NCAD 2012. p. 221-226 6 p. (American Society of Mechanical Engineers, Noise Control and Acoustics Division (Publication) NCAD).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Acoustics
optimization
acoustics
synthesis
Acoustic variables control
5 Citations (Scopus)

Nonlinearity analysis of model-scale jet noise

Gee, K. L., Atchley, A. A., Falco, L. E. & Shepherd, M. R., May 1 2012, Nonlinear Acoustics: State-of-the-Art and Perspectives, ISNA 2012 - 19th International Symposium on Nonlinear Acoustics. 1 ed. p. 307-310 4 p. (AIP Conference Proceedings; vol. 1474, no. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

jet aircraft noise
scale models
nonlinearity
noise propagation
supersonic nozzles
2011

Experimental vibro-acoustic analysis of honeycomb sandwich panels connected by lap and sleeve joints

Hambric, S. A., Conlon, S. C., Fahnline, J. B., Campbell, R. L., Barnard, A. R. & Shepherd, M. R., Dec 1 2011, 40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011. p. 2897-2905 9 p. (40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011; vol. 4).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

lap joints
sleeves
acoustics
coefficients
modal response
2010
3 Citations (Scopus)

Effects of gears, bearings, and housings on gearbox transmission shafting resonances

Hambric, S. A., Shepherd, M. R. & Campbell, R. L., Dec 1 2010, ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010. Vol. 13. p. 229-238 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bearings (structural)
Gears
Acoustic noise
Spur gears
Vibrations (mechanical)
1 Citation (Scopus)

Numerical characterization of the background noise generated by the ARL/Penn state Garfield Thomas water tunnel impeller

Jonson, M. L., Shepherd, M. R., Myer, E. C., Hambric, S. A. & DeRoche, R. J., 2010, Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009. American Society of Mechanical Engineers (ASME), Vol. 15. p. 43-50 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wind tunnels
Tunnels
Water
Acoustics
Turbomachinery
2009
5 Citations (Scopus)

Measurements of the power flow between bolted honeycomb sandwich panels

Hambric, S. A., Conlon, S. C., Grisso, B. G. & Shepherd, M. R., Dec 1 2009, 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009. p. 1201-1209 9 p. (38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

shakers
honeycomb cores
lap joints
hammers
accelerometers

Minimizing the sound radiated by a cylindrical shell

Shepherd, M. R. & Hambric, S. A., 2009, 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009. Vol. 7. p. 4387-4394 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

cylindrical shells
acoustics
bulkheads
harmonic excitation
computer programs

On the possible role of short-range shock formation and coalescence in jet aeroacoustic source characterization

Shepherd, M. R. & Gee, K. L., Dec 1 2009, 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009. p. 875-881 7 p. (38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

jet aircraft noise
aeroacoustics
rockets
coalescing
shock
2007
9 Citations (Scopus)

Identification of nonlinear and near-field effects in jet noise using nonlinearity indicators

Gee, K. L., Shepherd, M. R., Falco, L. E., Atchley, A. A., Ukeiley, L. S., Jansen, B. J. & Seiner, J. M., Dec 1 2007, 13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference). (13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mach number
Acoustics
Power spectral density
Acoustic noise
Spectrum analysis