Publication:
DYNAMIC DESIGN ANALYSIS METHOD AS A PREDICTION OF SYSTEM FAILURES

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Authors
Gottfried, Brian F.
Subjects
DDAM
LFT&E
modal analysis
shock trials
shock trial qualification
shock design
Dynamic Design Analysis Method
Advisors
Kwon, Young W.
Didoszak, Jarema M.
Date of Issue
2018-12
Date
Publisher
Monterey, CA; Naval Postgraduate School
Language
Abstract
The ANSYS Mechanical program was used to model a simple structure representing shipboard equipment. A modal analysis and DDAM application were performed to determine the resulting displacements in the different modes of the systems. These displacements were then applied to the system in order to determine whether the combined modal displacements caused the critical component, represented by two thin beams, to make contact. If so, the system will have a predicted failure. The results were then compared to a NASTRAN time-dependent model for a solution comparison.
Type
Thesis
Description
Series/Report No
Department
Mechanical and Aerospace Engineering (MAE)
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
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