NASA has been a leader in development of composite materials for aircraft applications during the past 25 years. In the early 1980’s NASA and others conducted research to improve damage tolerance of composite structures through the use of toughened resins but these resins were not costeffective. The aircraft industry wanted affordable, robust structures that could withstand the rigors of flight...

With the development of aviation industry, more stringent demands are put forward for performance and manufacturing level aircraft. Moreover, automation precision aircraft assembly determine efficiency quality production. In order to improve positioning flexible track hybrid robots which applied automatic aircraft, a compensation method based on response surface methodology was proposed in this...

This article proposes a new approach for centralized path planning of multiple aircraft in presence of the obstacle-laden environment under low flying rules. The problem considers as a unified nonlinear constraint optimization problem. The minimum time and control investigate as the cost functions and the maximum velocity and power consider as the constraints. The pseudospectral method applies ...

Simulation is the technique by which a physical system can be represented mathematically by a computer program for the solution of a problem. Computing speed and software quality advances over the last 20 years have made flight simulation particularly effective in modeling the flight environment, and it is now an integral part of the aviation scene in the civil, military, manufacturing, and res...

Researchers from the Aerospace Systems Design Laboratory (ASDL) at the School of Aerospace Engineering at Georgia Tech have been developing over the past three years a comprehensive methodology for the integration of aircraft design and manufacturing. NASA's High Speed Civil Transport (HSCT) concept has been selected as a pilot project for this study because of its potential global transportati...

Wing rock phenomenon is an undesired motion appears in high angles of attack where a rolling in the aircraft in positive and negative roll angles with specified amplitude and frequency is occurred. In this paper two adaptive controllers suggested to control the rolling dynamics under wing rock phenomenon for a delta wing aircraft with presence of disturbance. Disturbance was considered as unmat...

A binary C/C brake disc (i.e., the test disc) was prepared with a (pyrolytic carbon/resin carbon) matrix using modified natural gas as carbon source through isothermal chemical vapor infiltration (ICVI) process directed flow and pressure impregnation carbonization (PIC) liquid-phase furfural acetone resin. The microstructural, mechanical, thermal, friction wear properties of were comprehensivel...