Accession Number : ADA113869

Title :   Response of Intermediate Scale Submarine Models to Simulated Nuclear Underwater Explosions. Volume I. Development of Computational Procedures.

Descriptive Note : Final rept. 1 Dec 79-31 Jan 81,

Corporate Author : PACIFICA TECHNOLOGY DEL MAR CA

Personal Author(s) : Kushner,A S ; Ranta,D E

PDF Url : ADA113869

Report Date : 12 Jun 1981

Pagination or Media Count : 41

Abstract : The physical significance of the terms in the Doubly Asymptotic Approximation (DAA) are evaluated. Additionally, the computational aspects of the terms are discussed. Two simplified versions of the DAA are proposed. These versions are referred to as the Plane Wave-Added Mass (PWAM) cylinder approximation and the PWAM plate approximation. Both approaches are evaluated via comparison to exact solutions and full DAA solutions. The PWAM plate approximation is shown to give results almost identical to the full DAA for problems dominated by structural deformation. Both methods appear to do a good job of picking up shell translation response. (Author)

Descriptors :   *Submarine models, *Approximation(Mathematics), Fluid dynamics, Asymptotic series, Plane waves, Cylindrical bodies, Shells(Structural Forms), Interactions, Nuclear explosion damage, Underwater explosions, Nuclear explosion simulation, Structural response, Nonlinear analysis, Finite element analysis, Deformation, Scale models

Subject Categories : Numerical Mathematics
      Submarine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE