Digital Hydraulic Actuators: An Alternative for Aircraft Control Surfaces

In the last decades, digital hydraulics has emerged as a new alternative for development of more efficient hydraulic systems, where effects throttling losses and internal leakages are minimized through use conventional components associated in parallel or switching hydraulics. aviation industry, systems commonly applied to control highly relevant such landing gear flight surfaces. this context, can be used an solution improve energy efficiency aircraft systems. Based on that, paper aims present three actuators application surfaces using The being studied by Laboratory Hydraulic Pneumatic Systems - LASHIP Federal University Santa Catarina UFSC called Digital Actuator DHA, Electro Hydrostatic DEHA Variable Speed VSDEHA. simulation results show that developed 23 times than servo-hydraulic actuators, with equivalent dynamic characteristics, demonstrating potential these aeronautical