Working With Noisy Transient Dynamic Simulation Models

This training module focuses on working with noisy transient dynamic simulations from codes like Abaqus, LS-Dyna, and others. The course concentrates on how proper use of DSP (Digital Signal Processing) across many aspects of the simulation task is critical to obtaining accurate results from these frequency-rich models.

Course Objectives & Benefits

• Learn how to properly request output from simulations to avoid the many disasters that aliasing creates
• Understand the pros/cons of driving transient models with different kinds of transient inputs (acceleration, displacement, forces, etc.)
• Explore how the proper use of DSP improves the accuracy, efficiency, and usefulness of explicit dynamics simulations (Abaqus, LS-Dyna, Radioss...) including impact, shock, buckling, failure, penetration, sliding contact, and quasi-static analyses
• Learn about sources that cause distortions in transient simulations, and then how to potentially remove them
• Obtain better correlations between physical tests and FEA simulations through the proper use of DSP, as applied to both FEA and physical test data

Course Outline

• Typical Issues with Transient-Dynamic Models
• Exploring Detailed Examples:
• Impact of a Consumer Electronic Device (Ball-Lens Impact)
• Oblique Impact of a Falling Plate
• Applying DSP on Mises and Principal Values
• Damping & Ringing in Nonlinear Transient Dynamic Simulations
• Shocking an Aluminum Plate
• Container Impact Study
• Integrating and Differentiating Data
• Attempting to Cheat Aliasing Via the Nature of Integrals & Derivatives
• Driving Transient Models with Tabular Data
• Additional Comments on Acceleration Data
• Conclusions
• Workshops
• The class provides several fully-solved examples including their raw data files that the attendees can explore to further solidify their learnings.

Course Duration

• Three sessions, 3 hours each (9 hours total)

Prerequisites

• Some previous exposure to transient FEA simulations is beneficial, but not required
• Basic understanding of digital signal processing similar to that taught in DSP Essentials module is recommended

Training Delivery Options

• Public Web Training via Zoom
• Cost: $830
• Request a customized course for your company/organization.
• Can be delivered LIVE over the web or in-person at your site.
• You can customize content, including having use utilize one or more of YOUR datasets in workshop examples.
• Click here to request a quote.