This paper is a continuation of research into the causes and ways to eliminate generation self-oscillations in system automatic regulation rotations free turbine turboshaft gas engines helicopters. The study dynamic processes turbine’s GTE has shown that one reasons for development poor performance control valve type «nozzle-flap» rotation regulator’s hydraulic drive. At pump-regulator plant, c...

Emissions produced by the aviation industry are currently a severe environmental threat; therefore, agencies and governments have set emission targets formulated plans to restrict emissions within next decade. Hybrid aircraft technology is being considered meet these targets. The importance of technologies lies in their advancements terms life cycles benignity. Owing advancements, hybrid electr...

Abstract. In the complex environment of battlefield and dust weather, hard objects including birds, bullets, sand others will inevitably cause impact damage to compressor blades turboshaft engines. The further result in fatigue vibration gas generator rotor catastrophic accidents such as excessive engine even crash. relation between oil film clearance dampers damping systems well amplitude a sy...

High-pressure turbine disks are subjected to extreme mechanical and thermal loadings throughout their lifetime. This is the reason why during design of turboshaft engines, regulation rules impose on manufacturers demonstrate integrity rotating parts, especially disks, with over-speed experiments. To improve prediction rotation speed at burst, it essential study viscoplastic behavior fracture ma...

The increase in air traffic expected the next years must be accompanied by innovation to ensure lowest possible environmental impact. Hybrid electric-thermal propulsion systems are currently being investigated and could represent a breakthrough for sustainability sector. However, transition electric remains challenging due current level of energy density related storage systems, additional comp...

One of the possible origins of High Cycle Fatigue in a compressor blade is the rotating stall under the influence of (rotating) inlet pressure or temperature distortion leading to a varying angle of attack on the compressor blades. This paper will be oriented towards the propagation of total pressure and total temperature nonuniformities in axial flow fans and compressors and their subsequent e...