Results 31 to 40 of about 3,568 (253)
Complexity, Volume 2021, Issue 1, 2021., 2021 The complex marine environment and the high energy consumption of shipboard equipment pose challenges to the long‐term navigation of autonomous unmanned ships. In wave‐induced motion, inertial gyro antirolling technology is used to offset the energy transmitted by waves, but the massive consumption of energy is not conducive to long‐term navigation of ...
Nailong Wu +6 more
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Journal of Low Frequency Noise, Vibration and Active Control, 2023 In order to enhance the anti-interference ability of the speed to external load and achieve the rapid response control for turboshaft engine of next-generation helicopters, an incremental nonlinear dynamic inverse (INDI) control method for turboshaft ...
Jie Song +3 more
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An Efficient Dynamic Modeling Technique for a Central Tie Rod Rotor
International Journal of Aerospace Engineering, Volume 2021, Issue 1, 2021., 2021 Compared with the three‐dimensional rotor model for a central tie rod rotor, an equivalent one‐dimensional model can greatly improve the computational efficiency in rotor dynamics analysis with a certain accuracy. However, little research work can be found on improving the modeling accuracy of one‐dimensional models using experimental data.
Jingze Liu +6 more
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Explicit Model Predictive Based Fault Tolerant Control for Turboshaft Engine System
IEEE Access, 2022 In order to tackle the faults of turboshaft engine-rotor systems and the real time implementation difficulty of traditional model predictive control methods, an explicit model predictive (EMPC) fault-tolerant control algorithm is designed based on an ...
Nannan Gu, Xi Wang, Shubo Yang
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Aerodynamic Optimization Design of a Supersonic Compressor Rotor with High Pressure Ratio
International Journal of Aerospace Engineering, Volume 2021, Issue 1, 2021., 2021 Supersonic compressors have a high wheel speed and operational capability, which facilitate a high stage pressure ratio. However, the strong shock waves in the passage of a supersonic rotor and the interference between shock waves and boundary layers can lead to large flow loss and low efficiency. Moreover, the existing design of a high‐load supersonic
Cui Cui +3 more
wiley +1 more source
Shock and Vibration, Volume 2021, Issue 1, 2021., 2021 Diesel engines are widely used in railway systems, particularly in freight trains. Despite their high efficiency in energy conversion, they usually generate high levels of acoustics pollution during operation. In order to mitigate this problem, a series of active/passive acoustics control methods are used to reduce noise. Most of these methods are only
Xieqi Chen +5 more
wiley +1 more source
Aeroengine High‐Attitude/Low Mach Number Oscillations: Mechanism and Prevention Design
International Journal of Aerospace Engineering, Volume 2021, Issue 1, 2021., 2021 The issue of aeroengine oscillations over high‐attitude and low‐speed flight envelope has been an unsolved problem due to their classified nature and hard reproduction in simulated altitude test stand. Efforts have been sought for either structural integrity or component damage.
Jiqiang Wang, Antonio Viviani
wiley +1 more source
Aerospace, 2022 Distributed control architecture can bring many benefits to the engine control system, but the delay and packet dropout introduced by network communication will bring negative effects to the control system.
Yifeng Chen +3 more
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Development of the helicopter turboshafted engine regulator
Aerospace Technic and Technology, 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 exploitation conditions.
Gennadii Ranchenko +4 more
openaire +2 more sources
MATEC Web of Conferences, 2017 The intention of this paper is to research the inlet flow distortion influence on overall performance of turboshaft engine and put forward a method called Distortion Factor Item (DFI) to improve the fuel supply plan for surge-preventing acceleration when
Cao Dalu, Tang Hailong, Chen Min
doaj +1 more source