PITCH-YAW-ROLL COUPLING,
Abstract
One of the most significant coupling problems in recent missile experience is that which results from interaction between the pitch, yaw and roll modes of motion. This paper discusses the geometric, aerodynamic and control system couplings and their mutual interactions which give rise to overall system stability problems. The supersonic aerodynamic static stability and control characteristics of a typical configuration which experiences aerodynamic coupling both in attitude and in control are discussed. It is noted that a primary cause of the coupling is the existence of significantly different energy levels on the windward and leeward sides of the configuration. The functional block diagram of a typical missile steering and roll control system is presented. Dynamic signal flow relationships for the system are developed including the effects of pitch, yaw and roll aerodynamic and geometric coupling terms. Based on this signal flow representation, linear relationships are presented showing the effect of various coupling derivatives on the overall steering-roll system stability. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1961
- Accession Number
- AD0448911
Entities
People
- B. E. Amsler
- L. L. Cronvich
Organizations
- AGARD