Analysis of the operating load of foil-air bearings in the gas generator of the turbine engine during the acceleration and deceleration maneuver | Zendy

Zbigniew Czyż | Zendy; Paweł Magryta | Zendy

Open Access

Analysis of the operating load of foil-air bearings in the gas generator of the turbine engine during the acceleration and deceleration maneuver

Author(s) -

Zbigniew Czyż,

Paweł Magryta

Publication year - 2016

Publication title -

eksploatacja i niezawodnosc - maintenance and reliability

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.47

H-Index - 27

eISSN - 2956-3860

pISSN - 1507-2711

DOI - 10.17531/ein.2016.4.5

Subject(s) - acceleration , generator (circuit theory) , gas turbines , automotive engineering , gas generator , foil method , engineering , aerospace engineering , mechanical engineering , materials science , physics , power (physics) , thermodynamics , classical mechanics , composite material

The paper examines loads acting on the drive unit of an unmanned helicopter during maneuvers of acceleration and braking. Particular attention is paid to loads of gas generator bearings nodes of a turbine engine which is applied in the helicopter designed. The study is based on the time courses of changes in velocity of the manned PZL W3-Falcon. The correlation of flight velocity change and time was approximated by the least squares method to determine changes in acceleration. This enabled to determine the values of the forces acting on gas generator bearings under static and dynamic conditions. These values were compared with the values obtained for jump-up and jump-down maneuvers. The investigation enabled to determine the extreme components loading of the drive unit, including gas generator bearings nodes.

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