To achieve the goal of more electric aircrafts current research investigates the frontline capabilities of electro-hydrostatic actuators (EHA) as substitutionfor conventional hydraulic flight control systems. Due to durability limita-tions, EHAs are to date only utilized as backup. In this paper the design ofEHAs and the impact of the challenging working condition on the healthstatus are presented. A longevity test bench, as well as developed test profileto cover real world operation are explained. Lastly, measurements of load-holding modes are analyzed in detail and insight about run-ins, temperaturedependencies and wear-related efficiency losses are gained.
Experimental Investigation of the Suction Capabilities of an Innovative High Speed External Gear Pump for Electro-Hydraulic Actuated Automotive Transmissions / Milani, M.; Montorsi, L.; Paltrinieri, F.. - In: INTERNATIONAL JOURNAL OF FLUID POWER. - ISSN 1439-9776. - 25:2(2024), pp. 243-272. [10.13052/ijfp1439-9776.2527]
Experimental Investigation of the Suction Capabilities of an Innovative High Speed External Gear Pump for Electro-Hydraulic Actuated Automotive Transmissions
Milani M.Methodology
;Montorsi L.Conceptualization
;Paltrinieri F.
Writing – Original Draft Preparation
2024
Abstract
To achieve the goal of more electric aircrafts current research investigates the frontline capabilities of electro-hydrostatic actuators (EHA) as substitutionfor conventional hydraulic flight control systems. Due to durability limita-tions, EHAs are to date only utilized as backup. In this paper the design ofEHAs and the impact of the challenging working condition on the healthstatus are presented. A longevity test bench, as well as developed test profileto cover real world operation are explained. Lastly, measurements of load-holding modes are analyzed in detail and insight about run-ins, temperaturedependencies and wear-related efficiency losses are gained.
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