Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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RESEARCH OF CHARACTERISTICS AND WORKING PROCESSES OF AUTONOMOUS ELECTROHYDRAULIC ACTUATOR WITH COMBINED SPEED CONTROL

Alekseenkov A.S. 1
1 Moscow Aviation Institute (National Research University)
The concept of electrification onboard aircraft’s systems imply a reduction of centralized hydraulic systems and using an actuators powered by electricity as the main gear of control systems. Reducing the mass of a passenger plane, achieved by reducing the centralized hydraulic systems allows increased payload, reduce fuel costs , and in addition the use of electricity can improve operational performance , which undoubtedly has an economic benefit. At the same time actuators of the primary flight control surfaces must have a high performance, required level of reliability and fail-safe. The most promising solution in this field is a hybrid (dual mode) electrohydraulic actuators with combined speed control in the backup channel. However, at the current state of the art these actuators is not enough studied for their mass production and industrial application. In particular, there are not defined methods and parameters settings of the control unit, the actuator is poorly explored in working under load mode, not defined a ways to improve dynamic characteristics. Poorly studied impact of control unit’s parameters to actuator’s characteristics. In summary research of autonomous electrohydraulic actuators with combined speed control is relevant and urgent aim for modern aviation industry.