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Kinematic Design and Control Analysis of A Subsonic Ejector Nozzle with Omni-Directional Thrust Vectoring for Afterburning Turbofan Engines Cover

Kinematic Design and Control Analysis of A Subsonic Ejector Nozzle with Omni-Directional Thrust Vectoring for Afterburning Turbofan Engines

By: Igor Oganyan and  Vasyl Loginov  
Open Access
|Dec 2025

Figures & Tables

Fig. 1.

Subsonic variable nozzle of the AI-222-25F engine.
Subsonic variable nozzle of the AI-222-25F engine.

Fig. 2.

Kinematic scheme of subsonic nozzle with TVC.
Kinematic scheme of subsonic nozzle with TVC.

Fig. 3.

Deflection of nozzle elements in a plane parallel to the triangle profile.
Deflection of nozzle elements in a plane parallel to the triangle profile.

Fig. 4.

Deflection of nozzle elements in a plane perpendicular to the triangle profile.
Deflection of nozzle elements in a plane perpendicular to the triangle profile.

Fig. 5.

Subsonic nozzle with TVC, deflected by 18°.
Subsonic nozzle with TVC, deflected by 18°.

Fig. 6.

Kinematic scheme of ejector nozzle with TVC.
Kinematic scheme of ejector nozzle with TVC.

Fig. 7.

Subsonic nozzle with TVC in different positions.
Subsonic nozzle with TVC in different positions.

Fig. 8.

Ejector nozzle with TVC.
Ejector nozzle with TVC.

Fig. 9.

Ejector nozzle with TVC during expansion and contraction.
Ejector nozzle with TVC during expansion and contraction.

Fig. 10.

Positions of triangle 9 in the initial and current state.
Positions of triangle 9 in the initial and current state.

Fig. 11.

Connection scheme of lever 11 with triangle 9.
Connection scheme of lever 11 with triangle 9.

Fig. 12.

Projection of the ring onto a plane perpendicular to the axis of its rotation.
Projection of the ring onto a plane perpendicular to the axis of its rotation.

Fig. 13.

Mechanism of hinge multi-link.
Mechanism of hinge multi-link.

Fig. 14.

Four-hinge link mechanism.
Four-hinge link mechanism.

Fig. 15.

Four-hinge link mechanism.
Four-hinge link mechanism.

Fig. 16.

Three-link hinge mechanism.
Three-link hinge mechanism.

Fig. 17.

Transmission mechanism.
Transmission mechanism.

Fig. 18.

Computational scheme for the nozzle control system.
Computational scheme for the nozzle control system.

Fig. 19.

Nozzle position when the ring is rotated 2° in the horizontal plane.
Nozzle position when the ring is rotated 2° in the horizontal plane.

Fig. 20.

Nozzle position when the ring is rotated 2° in two planes.
Nozzle position when the ring is rotated 2° in two planes.

Layout schemes of modern aircraft nozzles_

A/C nameEurofighter Typhoon, EF2000MiG-35Su-30MKISu-35ST-50 PAK FAF-22 RaptorATD-XF-35B
AirframeEurofighter GmbHRSK MiGJSC Sukhoi CompanyJSC Sukhoi CompanyJSC Sukhoi CompanyLockheed MartinTRDI, Mitsubishi Heavy IndustriesLockheed Martin
Engine2 × EJ2002 × RD-33MKV2 × AL-31FP2 × AL-41F1S2 × AL-41F12 × F119-PW-1002 × IHI XF5-11 × F135
Nozzle type
TVC availability
TVC part (movable)Supersonic partSupersonic partAll nozzleAll nozzleSupersonic partSupersonic partSupersonic partAll nozzle
Axisymmetric nozzle; Flat nozzle;
Thrust vector control; Thrust vector in the vertical plane.

Displacement of hydraulic cylinder pistons at δ = 2°_

δ, deg.Θ, deg.x1, mmx2, mmx3, mm
2900-13.713.7

Movement of hydraulic cylinder pistons at δ = 2° and Θ = 2°_

δ, deg.Θ, deg.x1, mmx2, mmx3, mm
288-15.6-5.721.7
Language: English
Page range: 45 - 68
Submitted on: Aug 18, 2025
|
Accepted on: Oct 23, 2025
|
Published on: Dec 24, 2025
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2025 Igor Oganyan, Vasyl Loginov, published by ŁUKASIEWICZ RESEARCH NETWORK – INSTITUTE OF AVIATION
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.