Sabot Design Optimization
Abstract
An engineering analysis procedure which describes the sabot discard process for gun-launched projectiles has been employed to perform a sabot design optimization study. This analysis tool models the complex interaction flow field which develops about the projectile/sabot package by use of local shock/ expansion procedures. Sabot design optimization was achieved based upon a figure of merit related to the pitching moment produced on the projectile during the removal process. A second constraint was also imposed to preclude sabot contact with the projectile stabilizing fins during the discard. It was found that the front scoop/bore-rider size and axial location must be selected to provide an initial lateral motion with small rotation. This minimizes dispersive moments due to mechanical contact and helps provide fin clearance. This initial lateral motion phase must be followed by rapid pitch-up and deceleration in order to minimize the duration of the interaction process. The use of a novel winged sabot concept was found to show promise for providing such controllable sabot discard maneuvers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1981
- Accession Number
- ADA100264
Entities
People
- David Siegelman
- Johnson Wang