A passive means for eliminating range loss for projectiles with partially restrained internal members

Conference · Sat Nov 01 00:00:00 EST 1986

OSTI ID:6163184

Hodapp, Jr, A E

A theory is developed to investigate offsetting the center of gravity (cg) of a Partially Restrained Internal Member (PRIM) from the projectile spin axis to provide a passive means for eliminating the PRIM induced instabilities that sometimes cause large losses in range and deflection. Results for cylindrical PRIM geometries indicated that, except for large diameter thin PRIM shapes, small PRIM cg offsets, including some that occur randomly within manufacturing tolerances, should be sufficient to reduce the instability induced range and deflection losses to acceptable levels. Experimental results are presented to confirm the stabilizing effect of PRIM cg offset.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6163184
• Report Number(s): SAND-86-2923C; CONF-870830-3; ON: DE87004241
• Resource Relation: Conference: AIAA aerodynamics flight mechanics conference, Monterey, CA, USA, 17 Aug 1987; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
PROJECTILES
STABILIZATION
CYLINDRICAL CONFIGURATION
SPIN
ANGULAR MOMENTUM
CONFIGURATION
PARTICLE PROPERTIES
420200* - Engineering- Facilities
Equipment
& Techniques