Rolling Resonance and Slightly Asymmetrical Aerodynamic Force of the Reentry Body

摘要

This paper discusses the problem in flight mechanics and aerodynamics for rolling resonance of the re-entry body; the mechanism of divergence of angle of attack of the re-entry body is also analysed. It is shown that rolling resonance is a primary hazard of the re-entry body is the divergence of angle of attack. Research results of the re-entry body in rolling resonance and small asymmetrical aerodynamic force as well as existential problems are described. It indicates that determining random ablative configuration and corresponding mathematical expectation and variance of small asymmetrical aerodynamic coefficients are key problems on predicting the rolling resonance probability which the re-entry body occurs, flight testing is the primary way to solve this difficult problem. (Chinese translations; China)