Improving the Interaction Between Heavy Trucks, Roads, and Bridges

Controlled equilibrium mounts for aircraft engine isolation

“…When conventional steel springs are used, they are designed to provide adequate support for the fully loaded vehicle, thus they are unnecessarily stiff for smaller loads. Air suspensions coupled with some type of height control system (load leveling system) have advantages over steel springs including consistent loaded/unloaded ride heights, reduced hysteresis, soft ride, and good traction distribution (White, 2000;Sweatman, Woodrooffe, & Mcfarlane, 1997;Dudding & Wilson, 2000;Palkovics & Fries, 2001 system is not limited to the improvement of ride comfort, but is expanded into vehicle stability and safety. There are different designs of load leveling systems and control algorithms to lessen vehicle rollover propensity in heavy trucks (Palkovics & Fries, 2001).…”

“…There are different designs of load leveling systems and control algorithms to lessen vehicle rollover propensity in heavy trucks (Palkovics & Fries, 2001). In addition, air suspensions have the reputation of being ''road friendly'' since they reduce dynamic loading of the pavement resulting in diminished pavement wear (Sweatman et al, 1997;Sun, 2002).…”

An approach for identifying and locating pavement sections subject to high dynamic wheel loads

“…The magnitude of DWL is dependent on road surface profile characteristics which have a determining influence on dynamic loading and the degree of their spatial repeatability (Sweatman and Addis [6]). It is also dependent on travel speed and heavy vehicle properties, particularly the types of suspension systems.…”