Force and Moment Measurements Applicable to a Flexible Weapons System
Abstract
Continuing the development of the 6-DOF Motion Test Apparatus (MTA) for performing dynamic wind tunnel tests revealed the importance of a capable data acquisition (DAQ) system for collecting and analyzing data. Assembling and testing the DAQ system in conjunction with the MTA, AFIT Low-Speed Wind Tunnel, and a selection of high-performance sensors was the primary focus of this research. Specifically, acquiring time-accurate aerodynamic force and moment measurements on a variety of test models was of high importance. The complete DAQ hardware and software system was employed in both static and dynamic wind tunnel tests to collect the aerodynamic forces and moments acting on a NACA 0012 wing model. Dynamic testing involved pitch oscillation motions, as well as pitch-plunge oscillation motions. Static tests yielded results that matched traditional sting mounted wind tunnel tests, despite minor angle-of-attack differences. Dynamic measurements of the lift, drag, and pitch moment coefficients were within expectations for the pitch oscillation tests and the highest flow velocity case of the pitch-plunge oscillation test.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 24, 2016
- Accession Number
- AD1054575
Entities
People
- James B. Sellers
Organizations
- Air Force Institute of Technology