Nonlinear Analysis of the Rolling Motion of a Wrap-Around Fin Missile at Angles of Attack from 0 to 90 deg in Incompressible Flow
Abstract
Dynamic subsonic wind tunnel test data are presented for a wrap- around fin (WAF) missile configuration in pure rolling motion at angles of attack from 0 through 90 deg. A nonlinear second-order differential equation of motion which describes the rolling motion of the four-finned WAF missile is discussed. This equation of motion is utilized in a 'global' nonlinear least- squares fitting procedure to extract linear and nonlinear aerodynamic roll moment coefficients from the wind tunnel test data. The equation of motion together with four extracted coefficients are shown to adequately explain the subsonic rolling motion of a WAF missile configuration at angles of attack from 0 through 90 deg.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1977
- Accession Number
- ADA046868
Entities
People
- Samuel R. Hardy
Organizations
- Naval Surface Warfare Center Dahlgren Division