MEASUREMENT OF NONAXIAL FORCES PRODUCED BY SOLID-PROPELLANT ROCKET MOTORS USING A SPIN TECHNIQUE
Abstract
This report introduces a technique for measurement of nonaxial forces produced by solid-propellant rocket motors which is independent of thrust stand interactions and motor weight variations. The technique consists of measuring the axial and two horizontal transverse forces (three components) while spinning the motor about its axial centerline. The accuracy of radial force measurement using the spin technique was established from a dynamic transverse force calibration which was accomplished in the presence of a 4800-lbf thrust- simulating axial load. It was determined that radial forces having magnitudes less than 10 lbf could be determined within 0.5 lbf and that radial forces greater than 10 lbf could be determined within 5 % at rotational speeds up to 250 rpm. The principle of the technique, its limitations, and advantages are discussed. Details of the dynamic transverse force calibrations and test results of nonaxial force measurements during motor firings are also presented.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1965
- Accession Number
- AD0474410
Entities
People
- J. E. Harris
- M. A. Nelius
Organizations
- Arnold Engineering Development Complex