Thermal Distortion Due to Wall Thickness Variation and Uneven Cooling in an M256 120-mm Gun Barrel
Abstract
During firing, the gun barrel centerline profile and muzzle pointing angle change due to thermal distortion. There are several causes of thermal distortion; we will discuss two: uneven cooling, and non-uniform wall thickness. We will briefly explain the mechanisms by which these two effects produce gun barrel bending and describe how these effects are modeled. We will demonstrate our model by predicting the muzzle pointing angle change for a particular gun tube firing five rounds, one every two minutes. The predictions are compared with experimental results; some agreement is noted.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1993
- Accession Number
- ADP009077
Entities
People
- James W. Bradley
- Mark L. Bundy
- Nathan Gerber
Organizations
- United States Army Research Laboratory