This paper provides an overview of the activities associated with the aerodynamic database which is being developed in support of NASA’s Hyper-X scramjet flight experiments. Three flight tests are planned as part of the Hyper-X program. Each will utilize a small, nonrecoverable research vehicle with an airframe integrated scramjet propulsion engine. The research vehicles will be individually ro...

licorice, the oldest chinese traditional medicine, is widely used in the treatment of human diseases. due to the deficiency of wild resource, selecting and breeding becomes a key issue to expanding the supply of licorice. spaceflight technology will become a new method for medicinal plants. the aim of this study was to investigate the effect of spaceflight on the components and anti-inflammator...

The flight dynamics of the Yamaha RMAX unmanned helicopter has been investigated, and mapped into a six degrees of freedom mathematical model. The model has been obtained by a combined black-box system identification technique and a classic model-based parameter identification approach. In particular, the closed-loop behaviour of the built-in attitude control system has been studied, to support...

We discuss the development of a mini‐ quadrotor system and coaxial quadrotor system for indoor and outdoor applications. The attitude control system consists of a stability augmentation system and a modern control approach. To perform an experimental flight test, a PID controller is used to validate our aerodynamic modelling and basic electronics hardware is dev...

A flight research program exploring the practical application of real-time performance optimization based on aircraft measurements and calculation of incremental drag from forced-response maneuvers is presented. The outboard ailerons of the L-1011 test bed aircraft were modified to provide for symmetric deflections to permit a recambering of the wing in that localized area, which in turn modifi...

This project aimed to create a stable flight system for a model airplane using a microcontroller, an accelerometer and a gyroscope. The method of stable flight is a PID controller. The hardware was designed to be light-weight and flight ready. The sensors were tested using various validation methods. The robot was then test flown to gather data to create a classifier for the PID constants.

The need for integrated systems development arises from complexity of a system. This paper presents an interactive design and simulation platform for flight vehicle systems development. Its “connect-and-play” capability and adaptability enable “on-line” interaction between design and simulation during the integrated development. As a case study, the implementation of the proposed platform and a...

The ability to produce a repeatable shock spectrum is needed for many applications in industry. Flight components and structural systems often require qualification testing consisting of subjecting the payload to a specified shock response spectrum (SRS). Testing is used to qualify sensitive packages for flight, ensuring that the unit will survive and continue to function normally during and af...

“Teaching by Showing” control of a small helicopter’s aggressive maneuvering often needs inner aided controllers based on helicopter's dynamics, which is very complex to identify. In this paper, a neural network based control is proposed, based on the identification of the relationship between the pilot’s control and flight states, and it is a model-free control method. Flight test is done in s...