Application Concept of the Active Magnetic Suspension Technology in the Aircraft Engine

Abstract

The paper presents the results of work on control and monitoring systems of an active magnetic bearings for the aircraft engine. Mathematic model of the active homopolar electromechanical actuator with permanent magnets is expanded. Mathematical model of the test object is developed what allows to propose a control algorithm. The experimental verification of this theory was performed on the laboratory test stand. Moreover, special monitoring system is also designed. Presented comprehensive approach allows increasing reliability of the aircraft engines, as well as in wind turbines, electric drives and machine tools spindles.

Measurement System of a Magnetic Suspension System for a Jet Engine Rotor

“…It becomes necessary to use a wireless connection between sensors and recording modules. However, the use of wireless sensors can be made difficult due to the electromagnetic noise in a broad frequency spectrum that may occur during engine operation [13].…”

“…Immense efforts have been undertaken to expand the magnetic technology applicability in high-speed machinery due to its invaluable advantages in terms of friction loss reduction, for example, in turbomachinery, compressors, and generators, [4][5][6][7][8][9]. In comparison with classical mechanical bearings, magnetic ones possess many advantages, [6,10] such as low amplitudes of mechanical vibration, high durability, lack of tribological wears, and ability of the extended operational term at high speed [11][12][13]. These features of magnetic technology give the immense potential to become a key element in smart and intelligent machines, such as unmanned aerial vehicle (UAV) jet engines [13].…”

“…In comparison with classical mechanical bearings, magnetic ones possess many advantages, [6,10] such as low amplitudes of mechanical vibration, high durability, lack of tribological wears, and ability of the extended operational term at high speed [11][12][13]. These features of magnetic technology give the immense potential to become a key element in smart and intelligent machines, such as unmanned aerial vehicle (UAV) jet engines [13].…”

“…Diagram of the measurement system[13]: (a) strain gauge in a full-bridge configuration as a sensor, (b) wireless nodes, (c) gateway, (d) software.Sensors 2020, 20, 862 6 of 16…”

Control of bearingless electric machines dedicated for aviation

“…Active magnetic bearing (AMB) technology fulfils these assumptions on account of precise control of rotor movement, which accurately determines the rotor current position. Moreover, AMB allows to monitor and identify high-speed rotating machine operation parameters, that is, “on-line diagnostic” (Kurnyta-Mazurek et al , 2018). The MEA engine is more efficient than the classical one.…”