Signal processing and analysis in a buffet onset wind tunnel campaign
Journal Title: INCAS BULLETIN - Year 2015, Vol 7, Issue 2
Abstract
The purpose of the current work is to determine the buffet onset boundary in the case of an airliner type of wind tunnel model having a presumably laminar wing. A complex wind tunnel campaign took place, providing an important amount of data from a variety of sensors: steady and non-steady pressure sensors, strain gauges and accelerometer. The last two types of sensors are useful for buffeting investigation, which is the structural vibration and are considered to provide global indications. Pressure signals are providing local indications and also global when properly integrated in global indices. The paper shows the difficulties encountered in using global indicators, which fail to identify the buffeting and the delicate analysis of pressure signals and their qualitative analysis, which provide a good insight into the phenomena and are clearly indicating the buffet onset boundary, with the proper extrapolation.
Authors and Affiliations
PRICOP Mihai Victor , COJOCARU Marius Gabriel , FADGYAS Maria Cristina , BOSCOIANU Mircea
Keywords
Related Articles
- EP ID EP122176
- DOI 10.13111/2066-8201.2015.7.2.13
- Views 86
- Downloads 0
Utilization of simple and double control subsonic aircraft for advanced combat training of the military pilots
The use of subsonic single control aircraft and especially of double–control ones, instead of supersonic combat aircraft in the military pilot training programs in the operational units, has be-come a necessity due to th...
An Extension of Newton Gravity Formula Considering the Universe Expansion Effects
The Universe expansion and gravity are perhaps the main factors that determine the Universe evolution at global scale. The expansion of the Universe seen as a sphere whose frontier is moving at the speed of light in vacu...
Parachute systems for the atmospheric reentry of launcher upper stages
Parachute systems can be used to control the reentry trajectory of launcher upper stages, in order to lower the risks to the population or facilitate the retrieval of the stage. Several types of parachutes deployed at su...
CONNECTIONS BETWEEN PROFESSOR ELIE CARAFOLI’S ACTIVITY AND THE DEVELOPMENT OF THE AERONAUTICAL UNIVERSITY EDUCATION FOCUSING THE PROPULSION SYSTEMS FIELD
The intent of this paper is to reveal other features of Professor Elie Carafoli’s complex personality, his devotion and fully commitment to the development of the aeronautical university education; the focus on the propu...
PIO I-II tendencies case study. Part 1. Mathematical modeling
In the paper, a study is performed from the perspective of giving a method to reduce the conservatism of the well known PIO (Pilot-Induced Oscillation) criteria in predicting the susceptibility of an aircraft to this ver...