Feasibility of a sliding seat utilizing adaptive control of a magnetorheological (MR) energy absorber (MREA) to minimize loads imparted to a payload mass in a ground vehicle for frontal impact speeds as high as 7 m/s (15.7 mph) is investigated. The crash pulse for a given impact speed was assumed to be a rectangular deceleration pulse having a prescribed magnitude and duration. The adaptive control objective is to bring the payload (occupant plus seat) mass to a stop using the available stroke, while simultaneously accommodating changes in impact velocity and occupant mass ranging from a 5th percentile female to a 95th percentile male. The payload is first treated as a single-degree-of-freedom (SDOF) rigid lumped mass, and two adaptive control algorithms are developed: (1) constant Bingham number control, and (2) constant force control. To explore the effects of occupant compliance on adaptive controller performance, a multi-degree-of-freedom (MDOF) lumped mass biodynamic occupant model was integrated with the seat mass. The same controllers were used for both the SDOF and MDOF cases based on SDOF controller analysis because the biodynamic degrees of freedom are neither controllable nor observable. The designed adaptive controllers successfully controlled load-stroke profiles to bring payload mass to rest in the available stroke and reduced payload decelerations. Analysis showed extensive coupling between the seat structures and occupant biodynamic response, although minor adjustments to the control gains enabled full use of the available stroke.
Skip Nav Destination
ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 28–October 1, 2010
Philadelphia, Pennsylvania, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4416-8
PROCEEDINGS PAPER
Adaptive Control of a Sliding Seat Using Magnetorheological Energy Absorbers Available to Purchase
Norman M. Wereley,
Norman M. Wereley
University of Maryland, College Park, MD
Search for other works by this author on:
Alan L. Browne
Alan L. Browne
General Motors Research and Development, Warren, MI
Search for other works by this author on:
Min Mao
University of Maryland, College Park, MD
Norman M. Wereley
University of Maryland, College Park, MD
Alan L. Browne
General Motors Research and Development, Warren, MI
Paper No:
SMASIS2010-3896, pp. 503-514; 12 pages
Published Online:
April 4, 2011
Citation
Mao, M, Wereley, NM, & Browne, AL. "Adaptive Control of a Sliding Seat Using Magnetorheological Energy Absorbers." Proceedings of the ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2. Philadelphia, Pennsylvania, USA. September 28–October 1, 2010. pp. 503-514. ASME. https://doi.org/10.1115/SMASIS2010-3896
Download citation file:
18
Views
Related Proceedings Papers
Related Articles
An Adjustable Model Reference Adaptive Control for a Flexible Launch Vehicle
J. Dyn. Sys., Meas., Control (July,2010)
Control of Cutting Force for End Milling Processes Using an Extended Model Reference Adaptive Control Scheme
J. Manuf. Sci. Eng (August,1996)
Adaptive Output Force Tracking Control of Hydraulic Cylinders With Applications to Robot Manipulators
J. Dyn. Sys., Meas., Control (June,2005)
Related Chapters
A Novel Approach for LFC and AVR of an Autonomous Power Generating System
International Conference on Mechanical Engineering and Technology (ICMET-London 2011)
An Adaptive Fuzzy Control for a Multi-Degree-of-Freedom System
Intelligent Engineering Systems Through Artificial Neural Networks, Volume 17
Vehicle Routing Simulation Research Based on an Improved Ant Colony Algorithm
International Conference on Advanced Computer Theory and Engineering, 4th (ICACTE 2011)