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Mining Publication: Pneumatic Active Suspension Design for Heavy Vehicle Seats and Operator Ride Comfort
Keywords: Equipment design Ergonomics Excessive vibration
Original creation date: June 2006
Authors: B Valero, F Amirouche, AG Mayton
NIOSH/USBM Numbered Publication - June 2006
Download Text Document
NIOSHTIC2 Number: 20030963
Proceedings of the First American Conference on Human Vibration, June 5-7, 2006, Morgantown, West Virginia. Dong R, Krajnak K, Wirth O, Wu J, eds., Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2006-140; :38-39
Handling of heavy vehicles such as tractors, trucks and buses require a large roll stiffness which causes large high accelerations at the seat level during impacts. To provide comfort and minimize the energy transfer from the chassis and the seat a pneumatic active seat suspension is proposed. An active seat suspension design and control algorithm under development at the University of Illinois at Chicago, UIC, is being developed and tested. Preliminary results are presented in this paper. The design of a passive suspension typically consists of optimizing the value of two parameters: the stiffness and the damping of the suspension. The general dynamic performance of the suspension is limited to the conditions under which these parameters were obtained. A change in the input conditions might lead to poor suspension and an amplification of the vibration transmitted to the body. The focus of this paper is a robust, semi-active suspension system with a variable controlled damping and using the body response an index measure to minimize the acceleration at the interface of the seat and operator. A summary of existing suspensions, such as MR and ER fluids, and spring loaded and dual valve shock absorbent will be discussed to highlight the need of a semi-active pneumatic suspension system design.
NIOSH/USBM Numbered Publication - June 2006
Download Text Document
NIOSHTIC2 Number: 20030963
Proceedings of the First American Conference on Human Vibration, June 5-7, 2006, Morgantown, West Virginia. Dong R, Krajnak K, Wirth O, Wu J, eds., Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2006-140; :38-39
See Also
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Experiments on Personal Equipment for Low Seam Coal Miners: IV. Incorporating Coiled Cord Into Cap Lamp Battery Cords
Inexpensive, Easy to Construct Materials-handling Devices for Underground Mines
Laboratory Investigation of Seat Suspension Design Performance during Vibration Testing
Physical Strength Assessment in Ergonomics
Reducing Low Back Pain and Disability in Mining
Self-Reported Musculoskeletal Symptoms Among Operators of Heavy Construction Equipment
Task Analysis
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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