William E. Singhose
Associate Professor
Education
- Ph.D., Massachusetts Institute of Technology, 1997
- M.S., Stanford University, 1992
- B.S., Massachusetts Institute of Technology, 1990
Research Areas and Descriptors
- Automation and Mechatronics; Vibration and oscillation control, flexible dynamics, command generation, active seating, crane control, human-machine interfaces, and spacecraft control
Background
Dr. Singhose began at Tech in 1998 as an Assistant Professor. Prior, he was a Postdoctoral Associate at MIT.
Research
Dr. Singhose's research focuses on the dynamics and control of flexible machines. The performance of many types of machines is limited by the vibration and deflection that occur during their operation. For example, when a crane is used to transport material, the payload often oscillates when it reaches the desired location. The workers must then wrestle with the payload to bring it to rest. This slows down the transfer process and presents a safety hazard. Dr. Singhose has developed a control scheme that alters the voltages sent to the motors of cranes, so that the human operator is able to move the payload without oscillation.
In a more general sense, his work attempts to predict and minimize the damaging effects of machine flexibility. Simple models are used to capture the important dynamic effects. These models are then used to develop special commands for moving the machine about its workspace without vibration. Using this approach, Dr. Singhose has also implemented control schemes on silicon handling robots, scanning devices, and many types of automated manufacturing equipment. In addition to command generation, his research projects include: design of vibration absorbers, spacecraft thruster control, robot manipulator design and control, minimization of friction effects, and compensation for actuator saturation.
Distinctions
- Georgia Institute of Technology
- Center for the Enhancement of Teaching and Learning (CETL) Educational Partnership Award, 2004
- CETL/BP Junior Faculty Teaching Award, 2002
- Society of Manufacturing Engineers Jiri Tlusty Outstanding Young Manufacturing Engineer Award, 2003
- NCAA Division III National Decathlon Champion, 1990
Patents
- Command Generation Combining Input Shaping and Smooth Baseline Commands, U.S. Patent 6,920,378, with R. Eloundou, July 19, 2005
- Method and Apparatus for Minimizing Unwanted Dynamics in a Physical System, U. S. Patent 5,638,267, with Neil C. Singer, Stephen J. Derezinski, III, Bert W. Rappole, Jr., and Kenneth Pasch, June 10, 1997
Representative Publications
- A. Khalid, et al. 2006. Human Operator Performance Testing Using an Input-Shaped Bridge Crane. Journal of Dynamic Systems, Measurement, and Control 128, 835-841.
- W. Singhose, E. Biediger, H. Okada, and S. Matunaga. 2006. Experimental Verification of Real-Time Control for Flexible Systems with On-Off Actuators. ASME Journal of Dynamic Systems, Measurement, and Controls 128, 287-296.
- M. Kenison and W. Singhose. 2002. Concurrent Design of Input Shaping and Proportional Plus Derivative Feedback Control. ASME Journal of Dynamic Systems, Measurement, and Control 124, 398-405.
- W. Singhose and N. Singer. 199. Effects of Input Shaping on Two-Dimensional Trajectory Following. IEEE Transactions on Robotics and Automation 12, 881-887.
- W. Singhose, K. Bohlke, and W. Seering. 1996. Fuel-Efficient Pulse Command Profiles for Flexible Spacecraft. Journal of Guidance, Control, and Dynamics 19, 954-960.
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