Results 51 to 60 of about 3,568 (253)

Improving the Dynamic Behavior of a Hybrid Electric Rotorcraft for Urban Air Mobility

Energies, 2022
A rising number of aerospace manufacturers are working on the development of new solutions in the field of Urban Air Mobility with increasing attention addressing electric and hybrid electric propulsive systems.
Teresa Donateo, Ludovica Spada Chiodo, Antonio Ficarella, Andrea Lunaro   +3 more
doaj   +1 more source

PZL-10 Turboshaft Engine–System Design Review [PDF]

Journal of KONES, 2019
Abstract The PZL – 10-turboshaft gas turbine engine is straight derivative of GTD-10 turboshaft design by OKMB (Omsk Engine Design Bureau). Prototype engine first run take place in 1968. Selected engine is interested platform to modify due gas generator layout 6A+R-2, which is modern.
Michal Czarnecki, John Olsen, Ruixian Ma
openaire   +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

Electro-jet engine: a jet engine without turbine - Part 2. Electric power generation [PDF]

INCAS Bulletin
This part studies theoretically and experimentally the conversion of thermal energy directly into electrical energy. The experimental part was based on the recovery of a part of the heat lost to the cold source, i.e.
Sorin NUTU
doaj   +1 more source

An integrated methodology to assess the operational and environmental performance of a conceptual regenerative helicopter [PDF]

, 2015
This paper aims to present an integrated multidisciplinary simulation framework, deployed for the comprehensive assessment of combined helicopter powerplant systems at mission level. Analytical evaluations of existing and conceptual regenerative engine
Ali, Fakhre, Goulos, Ioannis, Pachidis, Vassilios   +2 more
core   +1 more source

Fuel Weight Fraction Estimation for a Disk–Rotor Hybrid Aircraft Along an Optimal Flight Trajectory During Concept Design

International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.
Owing to the transition flight of rotor/wing hybrid vertical take‐off and landing (VTOL) aircraft, the fuel weight cannot be estimated from empirical data during the conceptual design phase. This paper proposes a method for estimating the minimal fuel weight fraction (FWF) through a strategy of trajectory optimization under a given flight profile.
Menglin Yang, Zhiqiang Wan, De Yan, Jingwei Chen, Jinchao Chen   +4 more
wiley   +1 more source

Stability Analysis for GE T700 Turboshaft Distributed Engine Control Systems

IEEE Access, 2017
Future gas turbine engine control systems will be based on a distributed architecture in which the sensors and actuators will be connected to the controllers via a communication network.
Xiaofeng Liu, Chenshuang Luo
doaj   +1 more source

Study on the Single Management Method of Aero-engine Design Configuration based on Engineering Bills of Material

Hangkong gongcheng jinzhan, 2021
The product structure of aero-engine is very complex,and its engineering change is frequent,so it is difficult to realize the real-time and accurate definition of design configuration by using the traditional parts list management mode or simply ...
LUO Haidong, CHEN Zhilai, XIAO Jinbiao
doaj   +1 more source

Rubbing Dynamics of Dual‐Disk Rotor System Supported by Oil Film Bearing

Shock and Vibration, Volume 2025, Issue 1, 2025.
As the clearance between the rotor and the casing gradually becomes smaller, the probability of collision and friction increases greatly, the rubbing dynamics of the dual disk‐shaft‐bearing system is studied in this paper. Considering the gyro effect of rotor, a dynamic model of the rotor system under nonlinear oil film force is established; the ...
Guofang Nan, Yihui Zhou, Ying Wang, Xuewen Qiu, Haoyu Wang, Jussi Sopanen   +5 more
wiley   +1 more source

Material selection and manufacturing for high‐temperature heat exchangers: Review of state‐of‐the‐art development, opportunities, and challenges

International Journal of Ceramic Engineering &Science, Volume 6, Issue 5, September 2024.
High temperature heat exchangers may be designed from ceramics to achieve higher performance, and various materials and manufacturing techniques can help achieve highly efficient high temperature systems. Abstract Many energy systems demand heat transfer at high temperatures to keep up with high demand for power, so high‐temperature material that can ...
Corson L. Cramer, Edgar Lara‐Curzio, Amy M. Elliott, Trevor G. Aguirre, Bola Yoon, Brian A. Fricke, Vivek Rao, Prashant Jain, Kashif Nawaz   +8 more
wiley   +1 more source