Aircraft Engineering and Aerospace Technology: Volume 92 Issue 7

A composite control for UAV systems with time delays

Tim Chen, Nai Jau Dkuo, C.Y.J. Chen

This paper aims to propose a composite form of the robust disturbance fuzzy control scheme. The proposed method uses the benefits of fuzzy system modeling and Lyapunov direct…

Numerical predictions of the flow characteristics of subsonic jet emanating from corrugated lobed nozzle

Roy V. Paul, Kriparaj K.G., Tide P.S.

The purpose of this study is to investigate the aerodynamic characteristics of subsonic jet emanating from corrugated lobed nozzle.

Assessment on aerodynamic degradation for wing-damaged transport aircraft

Menglong Ding, Chuan Zeng, Wieslaw K. Binienda

Wingtip loss is an existing type of transport aircraft hazard which is a real threat to flight safety caused by a missile strike, underwing engine explosion or impact with…

Identification of efficient geometries for variable pitot inlets for supersonic transport

Stefan Kazula, Mark Wöllner, Klaus Höschler

This paper aims to reveal the influence of selected geometric parameters on the aerodynamic performance of circular variable aero engine inlets in transonic and supersonic civil…

The application of nonlinear least-squares estimation algorithms in atmospheric density model calibration

Houzhe Zhang, Defeng Gu, Xiaojun Duan, Kai Shao, Chunbo Wei

The purpose of this paper is to focus on the performance of three typical nonlinear least-squares estimation algorithms in atmospheric density model calibration.

Investigating the entropy generation around an airfoil in turbulent flow

Mohammad Reza Saffarian, Farzad Jamaati, Amin Mohammadi, Fatemeh Gholami Malekabad, Kasra Ayoubi Ayoubloo

This study aims to evaluate the amount of entropy generation around the NACA 0012 airfoil. This study takes place in four angles of attack of 0°, 5°, 10° and 16° and turbulent…

Study on zonal coating design of absorbing material for a stealth helicopter

Shaoze Lu, Jun Huang, Mingxu Yi

By reducing the coating thickness of the weak scattering source, the coating weight of the absorbing material can be reduced by 35% with little effect on the RCS.

Experimental study of wake steadiness of an airfoil in pitch–hold–return motion

Mehran Masdari, Maryam Ghorbani, Arshia Tabrizian

The purpose of this paper is to analyze experimentally subsonic wake of a supercritical airfoil undergoing a pitch–hold–return motion. The focus of the investigation has been…

Advances in the smart materials applications in the aerospace industries

Al Arsh Basheer

Smart materials also called intelligent materials are gaining importance continuously in many industries including aerospace one. It is because of the unique features of these…

Dynamic stall of an airfoil with different mounting angle of gurney flap

Mehran Masdari, Milad Mousavi, Mojtaba Tahani

One of the best methods to improve wind turbine aerodynamic performance is modification of the blade’s airfoil. The purpose of this paper is to investigate the effects of gurney…

Evaluation and prioritization of technical and operational airworthiness factors for flight safety

Mehmet Burak Şenol

In this study, a multi-criteria decision-making (MCDM) approach for evaluating airworthiness factors were presented. The purpose of this study is to develop an acceptable…

Minimization of aircraft fuel consumption subjected to arrival time constraint

Muhaned Gilani, Durmuş Sinan Körpe

This paper aims to minimize aircraft fuel consumption during the cruise phase when the flight is subjected to a specific time of arrival for different weights and distances.

Remote sensing satellite’s attitude control system: rapid performance sizing for passive scan imaging mode

Amirreza Kosari, Alireza Sharifi, Alireza Ahmadi, Masoud Khoshsima

Attitude determination and control subsystem (ADCS) is a vital part of earth observation satellites (EO-Satellites) that governs the satellite’s rotational motion and pointing. In…

Event- and self-triggered control of attitude coordination to multi-spacecraft system

Chengxi Zhang, Jin Wu, Ming-Zhe Dai, Bo Li, Mingjiang Wang

The purpose of this paper is to investigate the attitude cooperation control of multi-spacecraft with in-continuous communication.

Simultaneous quadrotor autopilot system and collective morphing system design

Oguz Kose, Tugrul Oktay

The purpose of this paper is to design a quadrotor with collective morphing using the simultaneous perturbation stochastic approximation (SPSA) optimization algorithm.

Taper stacking for the aerodynamic performance of wings

Mustafa Kaya, Munir Ali Elfarra

The critical Mach number, lift-to-drag ratio and drag force play important role in the performance of the wings. This paper aims to investigate the effect of taper stacking, which…

An integral approach for aircraft pitch control and instrumentation in a wind-tunnel

José Francisco Villarreal Valderrama, Luis Takano, Eduardo Liceaga-Castro, Diana Hernandez-Alcantara, Patricia Del Carmen Zambrano-Robledo, Luis Amezquita-Brooks

Aircraft pitch control is fundamental for the performance of micro aerial vehicles (MAVs). The purpose of this paper is to establish a simple experimental procedure to calibrate…