Results 1 to 10 of about 891,158 (301)

Influence of Engine Dynamic Characteristics on Helicopter Handling Quality in Hover and Low-Speed Forward Flight

Aerospace, 2023
This study assesses the influence of engine dynamic characteristics on helicopter handling quality during hover and low-speed forward flight. First, we construct the helicopter–engine coupling model (HECM) based on the power-matching relationship between
Yuan Wei, Renliang Chen, Ye Yuan, Luofeng Wang   +3 more
doaj   +2 more sources

Neural Network Signal Integration from Thermogas-Dynamic Parameter Sensors for Helicopters Turboshaft Engines at Flight Operation Conditions [PDF]

Sensors
The article’s main provisions are the development and application of a neural network method for helicopter turboshaft engine thermogas-dynamic parameter integrating signals.
Serhii Vladov, Lukasz Scislo, Valerii Sokurenko, Oleksandr Muzychuk, Victoria Vysotska, Serhii Osadchy, Anatoliy Sachenko   +6 more
doaj   +2 more sources

Neural Network Approximation of Helicopter Turboshaft Engine Parameters for Improved Efficiency

Energies
The work is devoted to the development of a method for neural network approximation of helicopter turboshaft engine parameters, which is the basis for researching engine energy characteristics to improve efficiency, reliability, and flight safety.
Serhii Vladov, Ruslan Yakovliev, Maryna Bulakh, Victoria Vysotska   +3 more
doaj   +2 more sources

A Study on the Acceleration Optimization Control Method for the Integrated Helicopter/Engine System Based on Torsional Vibration Suppression

IEEE Access, 2019
In order to solve the problem of insufficient power supply for helicopter and to increase the response speed of engine output power during the climbing process, the research on acceleration optimization control for the integrated helicopter/engine system
Yong Wang, Qiangang Zheng, Haibo Zhang, Ziyan Du   +3 more
doaj   +2 more sources

CFD-enabled sustainable design and manufacturing of cooling fan for unmanned helicopter [PDF]

Scientific Reports
Due to the demand of unmanned helicopters for drag reduction and rain-proof, the helicopter nacelle must be sealed. It will lead to a decrease in the heat transfer efficiency of the radiator, and the output power of the engine will drop dramatically. The
Liang Si, Zhixin Liu, Nannan Xiao, Yuwen Zhang, Yebao Liu, Shuai Deng, Yuchuan Li, Haisheng Yang, Xiongjian Zhang, Guoqiang Fu, Joon Phil Choi   +10 more
doaj   +2 more sources

Research on predictive control of helicopter/engine based on LMS adaptive torsional vibration suppression

Journal of Low Frequency Noise, Vibration and Active Control, 2018
In order to achieve the fast response of turboshaft engine combined with torsional vibration, a predictive controller of helicopter/engine based on the least mean square adaptive torsional vibration suppression is proposed and designed.
Yong Wang, Qiangang Zheng, Haibo Zhang, Haoying Chen   +3 more
doaj   +2 more sources

Ice Object Exclusion Characteristics of Turboshaft Engine Inlet under Helicopter/Inlet Integration Conditions

Aerospace
In this study, the influence laws of different parameters on the exclusion characteristics of hailstone and ice flake, and on the aerodynamic performance of the inlet are studied by numerical method. The motion of the hailstone and ice flake is simulated
Ge Zhou, Haoyu Zhou, Zhenlong Wu, Huijun Tan, Wanglong Qin   +4 more
doaj   +2 more sources

Intelligent Method of Identifying the Nonlinear Dynamic Model for Helicopter Turboshaft Engines [PDF]

Sensors
This research focused on the helicopter turboshaft engine dynamic model, identifying task solving in unsteady and transient modes (engine starting and acceleration) based on sensor data. It is known that about 85% of helicopter turboshaft engines operate
Serhii Vladov, Arkadiusz Banasik, Anatoliy Sachenko, Wojciech M. Kempa, Valerii Sokurenko, Oleksandr Muzychuk, Piotr Pikiewicz, Agnieszka Molga, Victoria Vysotska   +8 more
doaj   +2 more sources

Development of the helicopter turboshafted engine regulator

Авіаційно-космічна техніка та технологія, 2023
The subject of research was the development of the RDC-450M-117V – the TV3-117VMA-SBM1V digital engine regulator – based on the RDC-450M previously created at the enterprise for the AI-450M engine, considering differences in engine characteristics and ...
Gennadii Ranchenko, Anna Buryachenko, Viacheslav Grudinkin, Dmitriy Burunov, Vsevolod Danilov   +4 more
doaj   +2 more sources

Analysis of unstable mode of a free gas turbine of turbo-compressors engines [PDF]

MATEC Web of Conferences, 2021
This paper analyses unstable mode of a free gas turbine of turboshaft helicopter engine TV3-117. The analysis is focused on the conditions of this phenomenon and the possibilities of its solution in a turboshaft helicopter engine and an industrial ...
Hocko Marián, Al-Rabeei Samer
doaj   +1 more source