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Proceedings Papers

Commercialization of Active Isolation for Jet Aircraft

Steve C. Southward, Douglas E. Ivers, Geoff C. Nicholson
Proc. ASME. DETC97, Volume 1A: 16th Biennial Conference on Mechanical Vibration and Noise, V01AT04A001, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/VIB-4115
https://doi.org/10.1115/DETC97/VIB-4115
View Paper titled, Commercialization of Active Isolation for Jet Aircraft
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Topics: Aircraft, Vibration, Control systems, Engines, Noise (Sound), Sensors, Acoustics, Actuators, Errors, Vibration control
Journal Articles

Elastic Response of Acoustic Coating on Fluid-Loaded Rib-Stiffened Cylindrical Shells

Christopher Gilles Doherty, Steve C. Southward, Andrew J. Hull
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Research-Article
J. Vib. Acoust. February 2019, 141(1): 011020.
Paper No: VIB-18-1071
https://doi.org/10.1115/1.4041306
Published Online: October 16, 2018
View Article titled, Elastic Response of Acoustic Coating on Fluid-Loaded Rib-Stiffened Cylindrical Shells
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Topics: Acoustics, Coating processes, Coatings, Displacement, Fluids, Pipes, Shells, Stress, Waves, Excitation
Includes: Supplementary data
Proceedings Papers

System Identification and Optimal Control of Half-Car Active Suspension System Using a Single Noisy IMU With Position Uncertainty

Tamer Attia, Kevin Kochersberger, John Bird, Steve C. Southward
Proc. ASME. DSCC2017, Volume 2: Mechatronics; Estimation and Identification; Uncertain Systems and Robustness; Path Planning and Motion Control; Tracking Control Systems; Multi-Agent and Networked Systems; Manufacturing; Intelligent Transportation and Vehicles; Sensors and Actuators; Diagnostics and Detection; Unmanned, Ground and Surface Robotics; Motion and Vibration Control Applications, V002T04A002, October 11–13, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DSCC2017-5097
https://doi.org/10.1115/DSCC2017-5097
View Paper titled, System Identification and Optimal Control of Half-Car Active Suspension System Using a Single Noisy IMU With Position Uncertainty
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Topics: Optimal control, Suspension systems, Uncertainty, Control equipment, Vehicles, Actuators, Wheels, Center of mass, Degrees of freedom, Feedback
Proceedings Papers

Identification and Stability Analysis of the Postural Control System During Small Magnitude Perturbations

Bradley S. Davidson, Michael L. Madigan, Steve C. Southward, Maury A. Nussbaum
Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 913-914, June 25–29, 2008
Publisher: American Society of Mechanical Engineers
Paper No: SBC2008-193261
https://doi.org/10.1115/SBC2008-193261
View Paper titled, Identification and Stability Analysis of the Postural Control System During Small Magnitude Perturbations
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Topics: Control systems, Excitation, Muscle, Stability
Proceedings Papers

Traction Control Using an Anthropomimetic Approach

William T. Kirchner, Steve C. Southward
Proc. ASME. IDETC-CIE2011, Volume 8: 11th International Power Transmission and Gearing Conference; 13th International Conference on Advanced Vehicle and Tire Technologies, 683-690, August 28–31, 2011
Publisher: American Society of Mechanical Engineers
Paper No: DETC2011-47279
https://doi.org/10.1115/DETC2011-47279
View Paper titled, Traction Control Using an Anthropomimetic Approach
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Topics: Traction, Control algorithms, Tires, Wheels, Signals, Uncertainty, Vehicle dynamics, Vehicles
Proceedings Papers

Estimating Changes in Speech Metrics Indicative of Fatigue Levels

Parham Shahidi, Reza A. Soltan, Steve C. Southward, Mehdi Ahmadian
Proc. ASME. RTDF2010, ASME 2010 Rail Transportation Division Fall Technical Conference, 51-59, October 12–13, 2010
Publisher: American Society of Mechanical Engineers
Paper No: RTDF2010-42010
https://doi.org/10.1115/RTDF2010-42010
View Paper titled, Estimating Changes in Speech Metrics Indicative of Fatigue Levels
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Topics: Fatigue, Uncertainty, Algorithms, Fuzzy logic, Probability, Risk, Signals, Artificial neural networks, Chaos, Density
Journal Articles

On Controlling an Uncertain System With Polynomial Chaos and H 2 Control Design

Brian A. Templeton, David E. Cox, Sean P. Kenny, Mehdi Ahmadian, Steve C. Southward
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Modeling For Control
J. Dyn. Sys., Meas., Control. November 2010, 132(6): 061304.
https://doi.org/10.1115/1.4002474
Published Online: October 29, 2010
View Article titled, On Controlling an Uncertain System With Polynomial Chaos and H 2 Control Design
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Topics: Chaos, Polynomials, Design, Optimization
Proceedings Papers

Estimating Crew Alertness From Speech

Parham Shahidi, Steve C. Southward, Mehdi Ahmadian
Proc. ASME. JRC2010, 2010 Joint Rail Conference, Volume 1, 519-526, April 27–29, 2010
Publisher: American Society of Mechanical Engineers
Paper No: JRC2010-36261
https://doi.org/10.1115/JRC2010-36261
View Paper titled, Estimating Crew Alertness From Speech
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Topics: Algorithms, Computation, Fatigue, Fuzzy logic, Governments, Hardware, High speed rail, Locomotives, Railroads, Signals
Proceedings Papers

Fuzzy Analysis of Speech Metrics to Estimate Conductor Alertness

Parham Shahidi, Steve C. Southward, Mehdi Ahmadian
Proc. ASME. RTDF2009, ASME 2009 Rail Transportation Division Fall Technical Conference, 129-135, October 20–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: RTDF2009-18031
https://doi.org/10.1115/RTDF2009-18031
View Paper titled, Fuzzy Analysis of Speech Metrics to Estimate Conductor Alertness
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Topics: Algorithms, Fatigue, Fuzzy logic, Silence, Sleep, Trains
Proceedings Papers

Real-Time Estimation of Temporal Word Boundaries Without Linguistic Knowledge

Parham Shahidi, Steve C. Southward, Mehdi Ahmadian
Proc. ASME. JRC2008, IEEE/ASME/ASCE 2008 Joint Rail Conference, 285-289, April 22–24, 2008
Publisher: American Society of Mechanical Engineers
Paper No: JRC2008-63066
https://doi.org/10.1115/JRC2008-63066
View Paper titled, Real-Time Estimation of Temporal Word Boundaries Without Linguistic Knowledge
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Topics: Algorithms, Blocks (Building materials), Locomotives, Signals, Testing
Proceedings Papers

Detecting Crew Alertness With Processed Speech

Samuel K. Shimp, III, Steve C. Southward, Mehdi Ahmadian
Proc. ASME. JRC-ICE2007, ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference, 199-203, March 13–16, 2007
Publisher: American Society of Mechanical Engineers
Paper No: JRC/ICE2007-40101
https://doi.org/10.1115/JRC/ICE2007-40101
View Paper titled, Detecting Crew Alertness With Processed Speech
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Topics: Algorithms, Design, Errors, Fatigue, Feature extraction, Monitoring systems, Noise (Sound), Noise control, Public transportation, Rails
Proceedings Papers

Acoustic Beamforming Enhancement of Locomotive Cabin Speech

Karl Muecke, Steve C. Southward
Proc. ASME. JRC-ICE2007, ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference, 205-210, March 13–16, 2007
Publisher: American Society of Mechanical Engineers
Paper No: JRC/ICE2007-40102
https://doi.org/10.1115/JRC/ICE2007-40102
View Paper titled, Acoustic Beamforming Enhancement of Locomotive Cabin Speech
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Topics: Acoustics, Locomotives, Microphones, Signals, Algorithms, Noise (Sound), Safety, Signal processing, Signal to noise ratio, Testing
Proceedings Papers

Real-Time Parameter ID Using Polynomial Chaos Expansions

Steve C. Southward
Proc. ASME. IMECE2007, Volume 9: Mechanical Systems and Control, Parts A, B, and C, 1167-1173, November 11–15, 2007
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2007-43745
https://doi.org/10.1115/IMECE2007-43745
View Paper titled, Real-Time Parameter ID Using Polynomial Chaos Expansions
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Topics: Chaos, Polynomials, Dynamic systems, Algorithms, Certainty, Statistical distributions, Uncertainty
Proceedings Papers

Development of a General Use Quarter-Vehicle Test Rig

Justin Langdon, Steve C. Southward
Proc. ASME. IDETC-CIE2007, Volume 3: 19th International Conference on Design Theory and Methodology; 1st International Conference on Micro- and Nanosystems; and 9th International Conference on Advanced Vehicle Tire Technologies, Parts A and B, 1239-1245, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-35144
https://doi.org/10.1115/DETC2007-35144
View Paper titled, Development of a General Use Quarter-Vehicle Test Rig
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Topics: Vehicles, Testing, Design, Tires, Aerodynamics, Braking, Dynamic models, Dynamics (Mechanics), Fittings, Fluid-dynamic forces
Proceedings Papers

Scale-Model Test Rig for Passive and Active Suspension Control Comparison

Nathanael D. Annis, Steve C. Southward
Proc. ASME. IDETC-CIE2007, Volume 3: 19th International Conference on Design Theory and Methodology; 1st International Conference on Micro- and Nanosystems; and 9th International Conference on Advanced Vehicle Tire Technologies, Parts A and B, 1247-1252, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-35153
https://doi.org/10.1115/DETC2007-35153
View Paper titled, Scale-Model Test Rig for Passive and Active Suspension Control Comparison
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Topics: Algorithms, Control algorithms, Design, Performance characterization, Simulation, Vibration control
Proceedings Papers

Comparison of Static and Dynamic Models for the Force Output of Magnetorheological Dampers

Russell J. Richards, Corina Sandu, Steve C. Southward
Proc. ASME. IDETC-CIE2007, Volume 3: 19th International Conference on Design Theory and Methodology; 1st International Conference on Micro- and Nanosystems; and 9th International Conference on Advanced Vehicle Tire Technologies, Parts A and B, 1201-1210, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-34603
https://doi.org/10.1115/DETC2007-34603
View Paper titled, Comparison of Static and Dynamic Models for the Force Output of Magnetorheological Dampers
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Topics: Dampers, Dynamic models, Signals, Errors, Fluids, Construction, Damping, Data collection, Dynamic response, Electromagnets
Proceedings Papers

Effect of the Actuators’ Location on Vibration Suppression Using Minimum Modal Energy Eigenstructure Assignment

Mohammad Rastgaar Aagaah, Steve C. Southward, Mehdi Ahmadian
Proc. ASME. IDETC-CIE2007, Volume 1: 21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 1873-1880, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-34962
https://doi.org/10.1115/DETC2007-34962
View Paper titled, Effect of the Actuators’ Location on Vibration Suppression Using Minimum Modal Energy Eigenstructure Assignment
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Topics: Actuators, Vibration suppression, Eigenvalues, Vibration, Algorithms, Arches, Closed loop systems, Feedback, Flexible structures, Open loop systems
Proceedings Papers

Vibration Confinement by Minimum Modal Energy Eigenstructure Assignment

Mohammad Rastgaar Aagaah, Mehdi Ahmadian, Steve C. Southward
Proc. ASME. IDETC-CIE2007, Volume 1: 21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 147-154, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-34961
https://doi.org/10.1115/DETC2007-34961
View Paper titled, Vibration Confinement by Minimum Modal Energy Eigenstructure Assignment
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Topics: Vibration, Eigenvalues, Closed loop systems, Open loop systems, Arches, Feedback, Flexible structures, Numerical analysis, Performance
Proceedings Papers

Eliminating the Unwanted Dynamics From the Controllable Suspensions for Vehicle Applications

Xubin Song, Mehdi Ahmadian, Steve C. Southward
Proc. ASME. IMECE2002, Transportation: Making Tracks for Tomorrow’s Transportation, 131-137, November 17–22, 2002
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2002-32958
https://doi.org/10.1115/IMECE2002-32958
View Paper titled, Eliminating the Unwanted Dynamics From the Controllable Suspensions for Vehicle Applications
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Topics: Dampers, Damping, Dynamics (Mechanics), Electric current, Rheology, Suspension systems, Trucks, Vehicles
Journal Articles

A Sensor Placement Strategy for the Hybrid Adaptive Feedforward Observer

Chau M. Tran, Steve C. Southward
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Technical Briefs
J. Dyn. Sys., Meas., Control. June 2006, 128(2): 449–452.
https://doi.org/10.1115/1.2196421
Published Online: February 20, 2005
View Article titled, A Sensor Placement Strategy for the Hybrid Adaptive Feedforward Observer
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Topics: Ducts, Feedforward control, Sensor placement, Sensors, Microphones, Acoustics, Errors