Aircraft Simulation
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Mathematical Modeling And Numerical Simulation of Dropwise Condensation on an Inclined Circular Tube
ABSTRACT: Dropwise condensation can improve heat transfer process and, consequently, leads to considerable reduction in size and weight of condensers as well as improvement in the dehumidification process in many applications, especially in civil transport aircraft. It can also be used as an efficient cooling tool for electronics and electrical systems in ai
J. Aerosp. Technol. Manag.. Publicado em: 2017-12
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2. Crashworthiness Analysis and Evaluation of Fuselage Section with Sub-floor Composite Sinusoidal Specimens
Abstract Crashworthiness is one of the main concerns in civil aviation safety particularly with regard to the increasing ratio of carbon fiber reinforced plastic (CFRP) in aircraft primary structures. In order to generate dates for model validations, the mechanical properties of T700/3234 were obtained by material performance tests, and energy-absorbing resu
Lat. Am. j. solids struct.. Publicado em: 2016-06
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3. Performance Comparison of the IMMPDAF Algorithm Using Real and Simulated Radar Measurements
ABSTRACT Performance indexes obtained in idealized simulated scenarios are the primary source of data for evaluating different target tracking algorithms in most researches presented in the literature. Despite the convenience of simulation, ultimate evaluation of a tracking algorithm must be made in real scenarios. Unfortunately, real radar measurements as w
J. Aerosp. Technol. Manag.. Publicado em: 2016-06
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4. Integration Analysis of Conceptual Design and Stealth-Aerodynamic Characteristics of Combat Aircraft
ABSTRACT In order to study stealth strike-fighter, an analysis on stealth-aerodynamic integration and conceptual design is conducted. A conceptual 3-D digital model with internal antiship missiles and air-to-air missiles is designed in CATIA software. Based on the physical optics and equivalent electromagnetic current methods, using the self-programmed RCSAn
J. Aerosp. Technol. Manag.. Publicado em: 2016-03
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5. Finite Element Analysis of Pilot’s Helmet Design Using Composite Materials for Military Aircraft
ABSTRACT The objective of this research was to design pilot helmets and to perform analysis of designed ballistic helmet against impact strength of bullet in Solidworks and Laminator software. The material used for construction of the helmet is fiber reinforced polymer matrix composite in which polymer matrix is made of nylon, a thermoset resin, and the fibe
J. Aerosp. Technol. Manag.. Publicado em: 2016-03
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6. A Novel Integrated Guidance and Control System Design in Formation Flight
ABSTRACT: Bird's formation flight is one of the best types of cooperation in nature. The bird's flight was the motivation of humans for flying. After one century of flight development, bird's formation flight was the motivation of humans for aircraft's formation flight. The closeness of aircrafts in formation flight and the effect of disturbances such as vor
J. Aerosp. Technol. Manag.. Publicado em: 2015-12
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7. Numerical Simulation on the Radar Cross Section of Variable-Sweep Wing Aircraft
ABSTRACT: The influence of variable-sweep wing on the aircraft's radar cross section (RCS) characteristics has been studied to reduce the aircraft's RCS as well as its detection probability by the hostile radar. With the help of CATIA, a 3-D digital model of the variable-sweep wing aircraft is built to generate a series of digital grids. Using MATLAB, a nume
J. Aerosp. Technol. Manag.. Publicado em: 2015-06
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8. Location Issues of Thin Shell Parts in the Reconfigurable Fixture for Trimming Operation
ABSTRACT: The location of thin shell parts is always a knotty problem during machining, welding, forming, assembling and inspection operations. This paper mainly focuses on the special location issues in the digital and flexible trimming process for aircraft skins fastened by reconfigurable fixture. Firstly, in view of the dynamic change of effective locator
J. Aerosp. Technol. Manag.. Publicado em: 2014-09
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9. Analysis of Radar Cross Section Reduction of Fighter Aircraft by Means of Computer Simulation
ABSTRACT: This paper presents a preliminary study of the Radar Cross Section (RCS) reduction on the fighter aircraft. First, it was studied the RCS of the aircraft from computational simulations based on prior knowledge of vulnerable areas of this aircraft to radar threats. Subsequently, the possible applications of Radar Absorbing Materials (RAM) on the sur
J. Aerosp. Technol. Manag.. Publicado em: 2014-06
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10. Crashworthiness study of a civil aircraft fuselage section
This paper studies the crashworthiness characteristics of a fuselage section and its improvement. A full-scale three-dimensional finite element model of the fuselage section is developed using a nonlinear finite element code, PAM-CRASH. The simulation is implemented to determine the structural deformation and impact response in terms of peak loads and accele
Lat. Am. j. solids struct.. Publicado em: 2014
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11. Propeller-induced Effects on the Aerodynamics of a Small Unmanned Aerial Vehicle
Abstract: The present paper has discussed investigations about the propeller slipstream effects on the aerodynamics of a generic unmanned air vehicle platform in the wind tunnel for a broad advance ratio range. The propeller-induced effects for small unmanned air vehicles are more significantly pronounced than general aviation aircraft, because of their high
J. Aerosp. Technol. Manag.. Publicado em: 2012-12
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12. Selecting the system most likely to be the best in the presence of an infinite number of alternatives
Simulation Optimization (SO) belongs to a broader class of problems called Stochastic Optimization. Most of the proposed SO methodologies in the literature aim to optimize the expected value of the performance measure. This thesis focus is on another class of problems: Multinomial Selection Procedures (MSPs). These procedures select the best alternative, whe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/12/2011