Results 21 to 30 of about 1,707 (248)

The effect of heat recovery on the optimal values of helicopter turboshaft engine parameters

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2020
Recent studies related to fuel economy in air transport conducted in our country and abroad show that the use of recuperative heat exchangers in aviation gas turbine engines can significantly, by up to 20...30%, reduce fuel consumption.
H. H. Omar, V. S. Kuz'michev, A. O. Zagrebelnyi, V. A. Grigoriev   +3 more
doaj   +1 more source

Performance assessment of simple and modified cycle turboshaft gas turbines

Propulsion and Power Research, 2013
This paper focuses on investigations encompassing comparative assessment of gas turbine cycle options. More specifically, investigation was carried out of technical performance of turboshaft engine cycles based on existing simple cycle (SC) and its ...
Barinyima Nkoi, Pericles Pilidis, Theoklis Nikolaidis   +2 more
doaj   +1 more source

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   +1 more source

Analysis influence of engine’s dynamic characteristics on helicopter’s flight quality

Xibei Gongye Daxue Xuebao
This article analyses the influence of an engine’s dynamic characteristics on a helicopter’s flight quality during hover/low speed forward flight. Firstly, based on the power matching relationship between the engine and the helicopter, a helicopter ...
WEI Yuan, CHEN Renliang
doaj   +1 more source

Performance of small-scale aero-derivative industrial gas turbines derived from helicopter engines

Propulsion and Power Research, 2013
This paper considers comparative assessment of simple and advanced cycle small-scale aero-derivative industrial gas turbines derived from helicopter engines.
Barinyima Nkoi, Pericles Pilidis, Theoklis Nikolaidis   +2 more
doaj   +1 more source

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   +1 more source

Special situation disposal and fault analysis of single engine parking for a certain type of helicopter

Hangkong gongcheng jinzhan
During the flight test of a certain type of helicopter, there was an abnormal parking fault of the left engine in the air. The pilot landed safely according to the special situation handling method, ensuring the safety of the aircraft.
LIU Haoyang, SHI Lijun, XU Yunshan, WANG Zhirui, CAI Yingnan   +4 more
doaj   +1 more source

THE MARKET AND THE FUTURE OF TURBINE POWERED LIGHT HELICOPTERS

Авіаційно-космічна техніка та технологія, 2020
In the introductory part of the article, it is provided brief information about the main activity of JSC “Element”- developer and manufacturer of electronic control systems for aircraft engines, in particular unit RDTs-450M for AI-450M helicopter ...
Вадим Владимирович Нерубасский
doaj   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

Advanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame, Henry Noyes, Eric Sihite, Arash Kalantari, Alireza Ramezani   +4 more
wiley   +1 more source

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   +1 more source