Accession Number:

ADA188690

Title:

Effect of Rotation on the Lateral Stability of a Free-Flying Column Subjected to an Axial Thrust with Directional Control.

Descriptive Note:

Final rept.,

Corporate Author:

ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENE T WEAPONS LAB

Personal Author(s):

• Vasilakis, J. D.
• Wu, J. J.

Report Date:

1987-10-01

Pagination or Media Count:

20.0

Abstract:

This report discusses some aspects of the stability problems of a free-flying column subjected to axial thrusts. In an age of spacecrafts and missiles, the stability of unsupported flying structures is of great importance. First the brief history of the lateral stability of a column is reviewed, and then the basic characteristic features of the stability problem of a free-free column are described. The mathematical techniques developed to solve these problems depend on a particular problem considered. The most general case requires the solution of a nonself-adjoint differential equationboundary condition system, which is homogeneous and with zero eigenvalues. Numerical procedures for such a system appear to work well, although theoretical proof of convergence is still lacking. Results of these procedures are discussed. Keywords Finite element analysis Rotation Rocket models.

Descriptors:

• *FINITE ELEMENT ANALYSIS
• *ROCKET MODELS
• *GUIDED MISSILE TRAJECTORIES
• *THRUST VECTOR CONTROL SYSTEMS
• CONTROL
• DIRECTIONAL
• FLIGHT
• FREE FLIGHT
• MATHEMATICAL ANALYSIS
• NUMERICAL METHODS AND PROCEDURES
• ROLL
• STABILITY
• THRUST
• VARIATIONAL METHODS

Subject Categories:

• Guided Missile Trajectories, Accuracy and Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE