国家航空航天研究所
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作者:Corneliu BERBENTE , Sorin BERBENTE
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:The general relativity describes the universe properties, the gravity playing a fundamental role. One uses a metric tensor in a Riemann space, g  , which should be in agreement with a mass (or energy) tensor in order to satisfy the Einstein equation of the general relativi...
作者:Thien Van NGUYEN , Dan N. DUMITRIU , Ion STROE
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:This paper mainly presents a method to model the 3-DOF manipulator with PID controller in Matlab-SimMechanics and the way to find out optimal parameters in the PID controller including: proportional gain, integral gain and derivative gain using the genetic algorithm (GA). For tha...
作者:Claudiu PATRASCU , Eugen CHIRIAC , Corneliu BALAN
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:The formation and detachment of Newtonian drops in viscous external liquids is investigated. A global analysis of two necking processes is presented in order to highlight the behavior of such thinning phenomena, when controlled either by inertia or by viscous effects. Moving deta...
作者:Viorel ANGHEL
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:This work presents a synthesis of the use of an integral approximate method based on structural influence functions (Green’s functions) concerning the behavior of beam-like structures. This integral method is used in the areas of static, dynamic, aeroelasticity and stability...
作者:Yamina BOUGHARI , Ruxandra Mihaela BOTEZ , Florian THEEL ...
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:Civil aircraft flight control clearance is a time consuming, thus an expensive process in the aerospace industry. This process has to be investigated and proved to be safe for thousands of combinations in terms of speeds, altitudes, gross weights, Xcg / weight configurations...
作者:Horia DUMITRESCU , Vladimir CARDOS
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:Previously, the turbulent flows were studied as they have been disregarding their origin, and without looking into some of the details of the mechanism of turbulence production and sustainment. This approach focusing its attention particularly on the details of the fluctuating mo...
作者:Yamina BOUGHARI , Ruxandra Mihaela BOTEZ , Florian THEEL ...
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:The aim of “Robustness Analysis” is to assess aircraft stability in the presence of all admissible uncertainties. Models that are able to describe the aircraft dynamics by taking into account all uncertainties over a region inside the flight envelope have therefore been deve...
作者:Ion DIMA , Mihaela NASTASE , Stefan HOTHAZIE ...
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:This article aims to provide an interactive in-house tool to quickly asses the stress in the critical points of the aeronautical structures. The software compares the results between the stress values obtained from the experimental tests using the resistive electrical tensometry ...
作者:Alexandru Marius PANAIT
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:A supersonic and high speed transonic Pitot Prandtl is described as it can be implemented in the Trisonic Wind Tunnel for calibration and verification of Mach number precision. A new calculation method for arbitrary precision Mach numbers is proposed and explained. The probe...
作者:Ana-Maria BORDEI , Andrei HALANAY
来源:[J].INCAS BULLETIN, 2017, Vol.9 (4)NIAR
摘要:The paper presents the stability analysis of the equilibria in a longitudinal flight of an unmanned aircraft with constant forward velocity. The motion of the aircraft is described using delay differential equations with constant delays, the delay being considered in flight contr...

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