Global ETD Search
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Showing 1 to 8 of 8 for “"Pneumatic suspension"”.
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Ride and roll performance analysis of a vehicle with spring loaded interconnected hydro-pneumatic suspension
… mechanical springs in parallel with hydro-pneumatic struts can help to design realistic interconnected hydro-pneumatic system for vehicle suspensions. In this dissertation, spring loaded hydro-pneumatic suspension, interconnected in roll plane, is analytically investigated for its ride and …
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Modeling, Control, and Design Study of Balanced Pneumatic Suspension for Improved Roll Stability in Heavy Trucks
This research investigates a novel arrangement to pneumatic suspensions that are commonly used in heavy trucks, toward providing a dynamically balanced system that resists body roll and provides added roll stability to the vehicle. The new suspension, referred to as "balanced suspension," is …
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An analytical study of ride and handling performance of an interconnected vehicle suspension
Design of a vehicle suspension involves a difficult compromise among the ride, handling and directional control performance characteristics. While a soft suspension is desired to enhance ride quality, hard suspension springs are required to achieve good handling and directional control performance. …
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A pneumatic semi-active control methodology for vibration control of air spring based suspension systems
<p>This research investigates a pneumatic suspension system containing an air spring, air flow valve, and an accumulator, where the spring and damping functions are combined into one package. The spring and accumulator provide the spring characteristics, and the computer controlled adjustable valve …
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Flow Characterization and Redesign of Load-Leveling Valves for Improving Transient Dynamics of Heavy Truck Air Suspensions
… valves that are commonly used for air suspension systems of commercial trucks. The first valve features a simple disk/slot design and is relatively compact for installation. The second type is larger and has a sophisticated, chambered design, which allows for considerably quicker fill …
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An investigation of vibration isolation systems using active, semi-active and tunable passive mechanisms, with applications to vehicle suspensions
… tunable shock absorbers. An interconnected hydro-pneumatic suspension with tunable pressure limiting mechanism is presented to achieve improved vehicle ride and handling performance. Analysis of a roll plane model of a vehicle employing the tunable interconnected suspension shows that the …
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Mechanical Integration of a Versatile Air Suspension Into a Powered Wheelchair
<p>Mechanical Integration of a Versatile Air Suspension into a Powered Wheelchair</p> <p>Joel Steinkraus</p> <p>It is undeniable that the vibration environment created by prolonged exposure to wheelchair use can cause discomfort for the rider and put him/her at risk of developing more severe …
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Tools and Techniques for Flow Characterization in the Development of Load Leveling Valves for Heavy Truck Application
… leveling valve is a critical component of an air suspension system since it manages air spring pressure, a key function that directly impacts vehicle dynamic performance in addition to maintaining a static ride height. Efficiency of operation of a load leveling valve is established by its flow …