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Proceedings Papers

Tuning a Replica of the Liberty Bell via Material Tailoring: An Application of a Method for Optimal Acoustic Design

G. H. Koopmann, David Ericson, Adam Olchowski, Eric Salesky

Proc. ASME. IMECE2001, Noise Control and Acoustics, 243-248, November 11–16, 2001

Paper No: IMECE2001/NCA-23526

DOI: https://doi.org/10.1115/IMECE2001/NCA-23526

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Topics: Acoustics, Design, Computer software, Dynamics (Mechanics), Eigenfunctions, Eigenvalues, Engineering disciplines, Engines, Matlab, Optimization

Proceedings Papers

Minimization of Radiated Sound Power From Vibrating Shells by Optimal Placement of Lumped Masses

A. D. Belegundu, G. H. Koopmann, E. W. Constans

Proc. ASME. DETC97, Volume 1C: 16th Biennial Conference on Mechanical Vibration and Noise, V01CT16A007, September 14–17, 1997

Paper No: DETC97/VIB-3798

DOI: https://doi.org/10.1115/DETC97/VIB-3798

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Topics: Shells, Mode shapes, Noise (Sound), Optimization, Vibration

Journal Articles

A New Design Strategy for Minimizing Sound Radiation of Vibrating Beam Using Dimples

W. N. Cheng, C. C. Cheng, G. H. Koopmann

J. Vib. Acoust. October 2011, 133(5): 051008.

DOI: https://doi.org/10.1115/1.4003939

Published Online: September 20, 2011

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Topics: Design, Vibration, Shapes, Radiation (Physics), Acoustics, Optimization, Modal assurance criterion, Sound

Journal Articles

Dynamic Beam Modification Using Dimples

W. N. Cheng, C. C. Cheng, G. H. Koopmann

J. Vib. Acoust. August 2008, 130(4): 041007.

DOI: https://doi.org/10.1115/1.2890400

Published Online: July 1, 2008

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Topics: Mechanical admittance, Vibration, Equilibrium (Physics), Simply supported beams

Proceedings Papers

Passive Control of Tire Vibration With a Dry Polymer Additive: Experiments and Analysis

J. E. Frank, G. H. Koopmann, W. Chen

Proc. ASME. IDETC-CIE2003, Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 1937-1945, September 2–6, 2003

Paper No: DETC2003/VIB-48538

DOI: https://doi.org/10.1115/DETC2003/VIB-48538

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Topics: Passive control, Polymers, Tires, Vibration, Dynamometers, Highways, Testing, Particulate matter, Roads, Vehicles

Journal Articles

A Method for Designing and Fabricating Broadband Vibration Absorbers for Structural Noise Control

Eiichi Nishida, G. H. Koopmann

J. Vib. Acoust. August 2007, 129(4): 397–405.

DOI: https://doi.org/10.1115/1.2424968

Published Online: November 1, 2006

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Topics: Damping, Degrees of freedom, Design, Modeling, Noise control, Shells, Stiffness, Vibration absorbers, Springs, Vibration

Journal Articles

A Design Method for Minimizing the Sound Power Radiated from Plates by Adding Optimally Sized, Discrete Masses

R. L. St. Pierre, Jr., G. H. Koopmann

J. Mech. Des. June 1995, 117(B): 243–251.

DOI: https://doi.org/10.1115/1.2836463

Published Online: June 1, 1995

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Topics: Acoustic intensity, Design, Design methodology, Electromagnetic spectrum, Mode shapes, Optimization, Optimization algorithms, Plates (structures), Probes, Resonance

Journal Articles

A Design Method for Minimizing the Sound Power Radiated from Plates by Adding Optimally Sized, Discrete Masses

R. L. St. Pierre, Jr., G. H. Koopmann

J. Vib. Acoust. June 1995, 117(B): 243–251.

DOI: https://doi.org/10.1115/1.2838669

Published Online: June 1, 1995

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Topics: Acoustic intensity, Design, Design methodology, Electromagnetic spectrum, Mode shapes, Optimization, Optimization algorithms, Plates (structures), Probes, Resonance

Journal Articles

Analytical Sensitivity of Acoustic Power Radiated from Plates

R. R. Salagame, A. D. Belegundu, G. H. Koopmann

J. Vib. Acoust. January 1995, 117(1): 43–48.

DOI: https://doi.org/10.1115/1.2873865

Published Online: January 1, 1995

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Topics: Acoustics, Plates (structures), Design, Excitation, Finite element analysis, Modeling, Sensitivity analysis, Sound

Journal Articles

An Improved Theoretical Model of Acoustic Agglomeration

L. Song, G. H. Koopmann, T. L. Hoffmann

J. Vib. Acoust. April 1994, 116(2): 208–214.

DOI: https://doi.org/10.1115/1.2930414

Published Online: April 1, 1994

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Topics: Acoustics, Agglomeration (Materials), Particulate matter, Scattering (Physics), Simulation

Journal Articles

Two-Channel Laser Vibrometer Techniques for Vibrational Intensity Measurements: Part 2—Longitudinal Intensity

T. E. McDevitt, G. H. Koopmann, C. B. Burroughs

J. Vib. Acoust. January 1994, 116(1): 100–104.

DOI: https://doi.org/10.1115/1.2930384

Published Online: January 1, 1994

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Topics: Laser Doppler vibrometers, Flow (Dynamics), Lasers

Journal Articles

An Active Control Strategy for Achieving Weak Radiator Structures

K. Naghshineh, G. H. Koopmann

J. Vib. Acoust. January 1994, 116(1): 31–37.

DOI: https://doi.org/10.1115/1.2930393

Published Online: January 1, 1994

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Topics: Actuators, Displacement, Excitation, Mechanical admittance, Optimization, Radiation (Physics), Simply supported beams, Waves

Journal Articles

Two-Channel Laser Vibrometer Techniques for Vibrational Intensity Measurements: Part 1—Flexural Intensity

T. E. McDevitt, G. H. Koopmann, C. B. Burroughs

J. Vib. Acoust. October 1993, 115(4): 436–440.

DOI: https://doi.org/10.1115/1.2930369

Published Online: October 1, 1993

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Topics: Laser Doppler vibrometers, Laser beams, Lasers, Errors, Excitation, Flow (Dynamics), Resonance, Rods, Waves

Journal Articles

Experimental and Numerical Analysis of Bimodal Acoustic Agglomeration

T. L. Hoffmann, W. Chen, G. H. Koopmann, A. W. Scaroni, L. Song

J. Vib. Acoust. July 1993, 115(3): 232–240.

DOI: https://doi.org/10.1115/1.2930338

Published Online: July 1, 1993

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Topics: Acoustics, Agglomeration (Materials), Numerical analysis, Particulate matter, Combustion chambers, Coal, Combustion, Fly ash, Sensitivity analysis, Simulation models

Journal Articles

An Experiment on Optimization of Active Noise Control on a Three-Dimensional Extended Radiator

J. A. Giordano, K. A. Cunefare, G. H. Koopmann

J. Vib. Acoust. January 1993, 115(1): 53–58.

DOI: https://doi.org/10.1115/1.2930314

Published Online: January 1, 1993

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Topics: Noise control, Optimization, Acoustics, Loudspeakers, Plates (structures), Boundary element methods, Computers, Corners (Structural elements), Signals, Sound pressure

Journal Articles

Acoustic Design Sensitivity for Structural Radiators

K. A. Cunefare, G. H. Koopmann

J. Vib. Acoust. April 1992, 114(2): 178–186.

DOI: https://doi.org/10.1115/1.2930247

Published Online: April 1, 1992

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Topics: Acoustics, Design, Acoustic intensity, Dimensions, Wavelength, Approximation, Boundary element methods, Integral equations

Journal Articles

A Boundary Element Approach to Optimization of Active Noise Control Sources on Three-Dimensional Structures

K. A. Cunefare, G. H. Koopmann

J. Vib. Acoust. July 1991, 113(3): 387–394.

DOI: https://doi.org/10.1115/1.2930196

Published Online: July 1, 1991

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Topics: Boundary element methods, Noise control, Optimization, Noise (Sound), Acoustics, Integral equations

Journal Articles

Fan Casing Noise Radiation

G. H. Koopmann, W. Neise, K. A. Cunefare

J. Vib. Acoust. January 1991, 113(1): 37–42.

DOI: https://doi.org/10.1115/1.2930152

Published Online: January 1, 1991

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Topics: Noise (Sound), Radiation (Physics), Sound pressure, Blades, Boundary element methods, Computation, Ducts, Noise control, Vibration, Vibration measurement

Journal Articles

Active Sources in the Cutoff of Centrifugal Fans to Reduce the Blade Tones at Higher-Order Duct Mode Frequencies

W. Neise, G. H. Koopmann

J. Vib. Acoust. January 1991, 113(1): 123–131.

DOI: https://doi.org/10.1115/1.2930146

Published Online: January 1, 1991

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Topics: Blades, Ducts, Fans

Journal Articles

Active Noise Control to Reduce the Blade Tone Noise of Centrifugal Fans

G. H. Koopmann, W. Neise, W. Chen

J. Vib. Acoust. July 1988, 110(3): 377–383.

DOI: https://doi.org/10.1115/1.3269529

Published Online: July 1, 1988

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Topics: Blades, Fans, Noise (Sound), Noise control, Impellers, Design, Ducts, Rotation, Signals, Sound pressure

Journal citation

NARROW

Tuning a Replica of the Liberty Bell via Material Tailoring: An Application of a Method for Optimal Acoustic Design

Minimization of Radiated Sound Power From Vibrating Shells by Optimal Placement of Lumped Masses

A New Design Strategy for Minimizing Sound Radiation of Vibrating Beam Using Dimples

Dynamic Beam Modification Using Dimples

Passive Control of Tire Vibration With a Dry Polymer Additive: Experiments and Analysis

A Method for Designing and Fabricating Broadband Vibration Absorbers for Structural Noise Control

A Design Method for Minimizing the Sound Power Radiated from Plates by Adding Optimally Sized, Discrete Masses

A Design Method for Minimizing the Sound Power Radiated from Plates by Adding Optimally Sized, Discrete Masses

Analytical Sensitivity of Acoustic Power Radiated from Plates

An Improved Theoretical Model of Acoustic Agglomeration

Two-Channel Laser Vibrometer Techniques for Vibrational Intensity Measurements: Part 2—Longitudinal Intensity

An Active Control Strategy for Achieving Weak Radiator Structures

Two-Channel Laser Vibrometer Techniques for Vibrational Intensity Measurements: Part 1—Flexural Intensity

Experimental and Numerical Analysis of Bimodal Acoustic Agglomeration

An Experiment on Optimization of Active Noise Control on a Three-Dimensional Extended Radiator

Acoustic Design Sensitivity for Structural Radiators

A Boundary Element Approach to Optimization of Active Noise Control Sources on Three-Dimensional Structures

Fan Casing Noise Radiation

Active Sources in the Cutoff of Centrifugal Fans to Reduce the Blade Tones at Higher-Order Duct Mode Frequencies

Active Noise Control to Reduce the Blade Tone Noise of Centrifugal Fans

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