Training Course Descriptions
DDAM Analysis with Abaqus
Objective:
The Dynamic Design Analysis Method (DDAM) is a U.S. Navy developed analytical procedure
for evaluating the design of shock-sensitive equipment and structures for naval applications.
DDAM for Abaqus is an add-on customization for Abaqus that allows marine engineers to
efficiently implement the DDAM. The add-on provides DDAM-specific input forms and generates
specialized DDAM output. It can be run interactively via a graphical user interface or in a
background batch mode.
This course details the DDAM for Abaqus procedures for performing the DDAM shock
response calculations and provides the student with hands-on experience via representative workshops.
The topics covered include:
- Introduction to the DDAM
- Overview of the DDAM for Abaqus Approach to Shock Response Analysis
- Shock Spectra Calculations (NRL-1396, User Inputs, Direction of Attack)
- Orienting the Finite Element Model with Respect to Ship Axes
- Using Automatic and Manual Mode Selection Criteria
- Nodal Acceleration Check for Mode Selection
- Closed Form Treatment (NAVSEA 3010) approach to Closely Spaced Modes
- Summation of Beam and Shell Stresses (Membrane, Membrane + Bending)
- Options for Averaging Shock Response Results
- Combining Operational Load and Shock Response Results
- Automated Generation of DDAM Model and Shock Response Data
The workshops include:
- Defining Shock Spectrums
- Creating a DDAM Model (Pump Assembly on a Hull Mounted Box Girder)
- Generating and Viewing Intermediate Results
- Generating and Viewing DDAM Shock Response Results
- Evaluating Closely Spaced Modes for a Pump-Shaft Model
Who should attend:
This course is recommended for engineers with
experience using Abaqus. Some familiarity with Abaqus/Viewer is recommended.
Agenda
To download a course overview in PDF format, click here. The overview
provides details of the topics covered in each lecture. Note that the actual
course agenda may vary depending on location.
Download the free Adobe Acrobat PDF Reader here 
Course was last updated May 2011
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