scholarly journals Key technologies and flight performance analysis for Chang’E-3 lunar lander propulsion system

2014 ◽  
Vol 44 (4) ◽  
pp. 385-390
Author(s):  
GuangMing JIN ◽  
Wei CAO ◽  
Jian CHEN ◽  
Rui WANG ◽  
Feng LIU ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Propulsion System ◽  
Flight Performance ◽  
Key Technologies ◽  
Lunar Lander

Biojet fuel production from oleaginous crop residues: thermoeconomic, life cycle and flight performance analysis

2021 ◽  
Vol 244 ◽  
pp. 114534
Author(s):  
Nicolas Vela-García ◽  
David Bolonio ◽  
María-Jesús García-Martínez ◽  
Marcelo F. Ortega ◽  
Daniela Almeida Streitwieser ◽  
...  
Keyword(s):  
Life Cycle ◽  
Performance Analysis ◽  
Crop Residues ◽  
Flight Performance ◽  
Fuel Production

Modeling and Analysis of a Digital Hydraulic Actuator for Flight Control Surfaces

2021 ◽  
Author(s):  
R. S. Lopes ◽  
M. P. Nostrani ◽  
L. A. Carvalho ◽  
A. Dell’Amico ◽  
P. Krus ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Flight Control ◽  
Data Model ◽  
Flight Performance ◽  
Hydraulic Actuator ◽  
Hydraulic Power ◽  
Fighter Aircraft ◽  
Modeling And Analysis ◽  
Modeling Process ◽  
Control Surfaces

Abstract This paper presents the design and modeling process of a flight control actuator using digital hydraulics and a performance analysis that compares the proposed solution and the Servo Hydraulic Actuator (SHA) on a fighter aircraft model. The proposed solution is named Digital Hydraulic Actuator (DHA) and comprises the use of a multi-chamber cylinder controlled by on/off valves and different pressures sources provided by a centralized hydraulic power unit, as proposed in the Fly-by-Wire (FbW) concept. The analyses were carried out using the Aero-Data Model in a Research Environment (ADMIRE), which was developed for flight performance analysis. The actuators were modeled using the software Matlab/Simulink® and Hopsan. They were applied to control the aircraft elevons in a flight mission close to the aircraft limits, to evaluate the actuator’s behavior and energy efficiency. The results show a reduction in energy dissipation up to 22.3 times when comparing the DHA with the SHA, and despite the overshooting and oscillations presented, the aircraft flight stability was not affected.

scholarly journals Performance Analysis of Combined Cycle with Air Breathing Derivative Gas Turbine, Heat Recovery Steam Generator, and Steam Turbine as LNG Tanker Main Engine Propulsion System

2020 ◽  
Vol 8 (9) ◽  
pp. 726
Author(s):  
Wahyu Nirbito ◽  
Muhammad Arif Budiyanto ◽  
Robby Muliadi
Keyword(s):  
Performance Analysis ◽  
Steam Turbine ◽  
Gas Turbine ◽  
Steam Generator ◽  
Heat Recovery ◽  
Combined Cycle ◽  
Propulsion System ◽  
Heat Recovery Steam Generator ◽  
Main Engine ◽  
Ship Speed

This study explains the performance analysis of a propulsion system engine of an LNG tanker using a combined cycle whose components are gas turbine, steam turbine, and heat recovery steam generator. The researches are to determine the total resistance of an LNG tanker with a capacity of 125,000 m3 by using the Maxsurf Resistance 20 software, as well as to design the propulsion system to meet the required power from the resistance by using the Cycle-Tempo 5.0 software. The simulation results indicate a maximum power of the system of about 28,122.23 kW with a fuel consumption of about 1.173 kg/s and a system efficiency of about 48.49% in fully loaded conditions. The ship speed can reach up to 20.67 knots.

Performance analysis of injectors for a hybrid propulsion system

2019 ◽  
Vol 41 (1) ◽  
Author(s):  
Shirley M. Pedreira ◽  
Rita C. L. Dutra ◽  
José I. S. Oliveira ◽  
Rene F. B. Gonçalves ◽  
Roberta J. Rocha ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Propulsion System ◽  
Hybrid Propulsion

MESSENGER Propulsion System Flight Performance

2006 ◽  
Author(s):  
Samuel Wiley ◽  
Katie Dommer ◽  
Carl Engelbrecht ◽  
Robin Vaughan
Keyword(s):  
Propulsion System ◽  
Flight Performance

In-flight performance analysis of direct RF sampling architecture applied to VHF band avionics

2018 ◽  
Author(s):  
Anh-Quang Nguyen ◽  
Abdessamad Amrhar ◽  
Alireza Avakh Kisomi ◽  
Xiaoxing Fang ◽  
Rene Jr Landry
Keyword(s):  
Performance Analysis ◽  
Flight Performance ◽  
Rf Sampling

scholarly journals Flight Performance Analysis of an Image Processing Algorithm for Integrated Sense-and-Avoid Systems

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Lidia Forlenza ◽  
Giancarmine Fasano ◽  
Domenico Accardo ◽  
Antonio Moccia
Keyword(s):  
Image Processing ◽  
Performance Analysis ◽  
Data Rate ◽  
Obstacle Detection ◽  
Image Processing Technique ◽  
Identification System ◽  
Flight Performance ◽  
Image Processing Algorithm ◽  
Position Measurement ◽  
Detection Range

This paper is focused on the development and the flight performance analysis of an image-processing technique aimed at detecting flying obstacles in airborne panchromatic images. It was developed within the framework of a research project which aims at realizing a prototypical obstacle detection and identification System, characterized by a hierarchical multisensor configuration. This configuration comprises a radar, that is, the main sensor, and four electro-optical cameras. Cameras are used as auxiliary sensors to the radar, in order to increase intruder aircraft position measurement, in terms of accuracy and data rate. The paper thoroughly describes the selection and customization of the developed image-processing techniques in order to guarantee the best results in terms of detection range, missed detection rate, and false-alarm rate. Performance is evaluated on the basis of a large amount of images gathered during flight tests with an intruder aircraft. The improvement in terms of accuracy and data rate, compared with radar-only tracking, is quantitatively demonstrated.

Sign in / Sign up

Export Citation Format

Share Document