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 Event Title: Biomechanics Laboratory Seminar Series
Where: Biomechanics Research Laboratory @ UIC
Friday, March 4, 2005
Time: 3:00 PM CST
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Biomechanics Seminar Series
Topic: Concepts and Modeling of a Skyhook Suspension System for a Truck Driver Seat
Speaker: Bertrand Valero
Location: Biomechanics Research Lab 1032 ERF- 842 West Taylor St.
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Abstract:
Seat design in heavy vehicles has received little attention on the past. As stated in In-Gindy (1992), there is a contradiction between the handling and the driver comfort : good vehicle handling requires a large roll stiffness at the front axle of the truck, which causes large vertical accelerations in the driver's seat. Therefore a secondary mechanism is needed to control the seat displacement.
Yet, using a suspension with a constant stiffness and damping does not give a good frequency response for all frequencies. A skyhook suspension induces a variable damping improving the response at all frequencies.
In our case, a skyhook suspension is implemented through a piston in a cylinder and a valve connecting both sides of the piston. A control algorithm has been developed to rule the pressure in the cylinder. A first multibody model of the suspension is being developed
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