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Using NASTRAN to model missile inertia loadsAn important use of NASTRAN is in the area of structural loads analysis on weapon systems carried aboard aircraft. The program is used to predict bending moments and shears in missile bodies, when subjected to aircraft induced accelerations. The missile, launcher and aircraft wing are idealized, using rod and beam type elements for solution economy. Using the inertia relief capability of NASTRAN, the model is subjected to various acceleration combinations. It is found to be difficult to model the launcher sway braces and hooks which transmit compression only or tension only type forces respectively. A simple, iterative process was developed to overcome this modeling difficulty. A proposed code modification would help model compression or tension only contact type problems.
Document ID
19850017575
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Marvin, R.
(Naval Weapons Center China Lake, CA, United States)
Porter, C.
(Naval Weapons Center China Lake, CA, United States)
Date Acquired
August 12, 2013
Publication Date
May 1, 1985
Publication Information
Publication: COSMIC 13th NASTRAN (R) Users' Colloq.
Subject Category
Structural Mechanics
Accession Number
85N25886
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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