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Pneumatic Vibration Isolation Device
Category(s):
For Information, Contact:
Jay Bjerke
Commercialization Manager, Engineering
515-294-4740
licensing@iastate.edu
Web Published:
5/3/2015
ISURF #
3492
Summary:
Researchers have developed a low cost pneumatic isolation device (LCPID) that can be used in conjunction with a vibration isolation platform technology to help reduce whole-body vibrations and their health consequences that workers may be subjected to when driving or operating equipment, trucks, or other vehicles.

Description:
Whole-body vibration is a physical occupational hazard in many workplaces. Workers typically subjected to this type vibration are operators or drivers of numerous kinds of vehicles used in agriculture, construction, highway trucking, and utility industries. Operators of the vehicles/equipment used in these industries are often subjected to extreme vibration environments for extended durations of time. The contemporary suspensions used on these vehicles are generally inadequate in providing the necessary vibration isolation for the operator, and can result in health problems such as back pain, carpal tunnel syndrome, and vascular disorders. In addition to the failure of current pneumatic suspension to adequately isolate vibrations from the occupant, many such suspensions are subject to occasional bottoming out and sling shot effects that cause jolts to the occupant or subjects them to high upward acceleration and travel. To overcome these drawbacks, Iowa State University researchers have developed a low cost pneumatic isolation device that mitigates the transmission of vibration and is particularly effective at controlling over-compression and over-extension modes of motion in suspensions.  The LCPID is also relatively easy to manufacture and is low cost, and can be used to improve ride performance.

Advantage:
• Minimizes the occurrences of bottoming out and/or sling shot events
• Low cost
• Improves ride performance
Application:
Vehicle suspensions

References:
Patent Information:
*To see the full version of the patent(s), follow the link below, then click on "Images" button.
Country Serial No. Patent No. Issued Date
United States 12/173,063 8,302,944* 11/6/2012


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