This training seminar teaches how to use energy quantities (external work, internal energy, frictional dissipation, inelastic energy, artificial energy, etc.) and derivatives of such energy quantities to significantly enhance your analysis methods. The methods are applicable to a large range of problems, quasi-static to dynamic as well as linear to non-linear. The course covers how to compute and use external work, potential and kinetic energy, and internal strain energy to estimate dynamic drop/impact problems with static simulations and/or measurements in both simulation and physical testing scenarios. The class also demonstrates the importance of checking the energy balance and various real and artificial energies from simulations to aid in FEA model validation. The concept of computing Causality from Energy Derivatives is defined and demonstrated to be a powerful technique to obtain a ranked list of which components in a structure dominate the stiffness and which do not. Lastly, examples are shown where the Causality quantities can be used to remove unwanted energy contributions in certain FEA simulations that were distorting the results, ultimately improving the analysis interpretation.
Course Objectives & Benefits
- Reestablish the importance of computing and assessing various energy quantities
- Estimate dynamic impact behavior (max displacements, strains, and stresses) using quasi-static data and energy information
- Introduce Causality Analysis, derived from energy derivatives, and explain how this type of analysis can be used to add insight into how a structure or component is carrying load
- With one run of a nonlinear FEA model, use Causality Analysis to create a ranked list of which components in a structure are most dominant and which are least relative to the structure’s overall stiffness
- Correct and adjust results that are distorted from unwanted energy contributions
Course Outline
- Conservation of Energy and the Energy Balance
- Classic Use of Checking Energies for Assessing a Simulation’s Validity
- Using Energy Methods to Estimate Impact Behavior from Quasi-Static Information
- Physical Testing and Simulations
- Linear and Nonlinear Problems
- Causality and Energy Derivatives
- Defining the Concept
- Creating a rank list of dominant and non-dominant components in a structure
- Correcting and Adjusting Results to Remove Undesirable Distortions
- Creating Lightning-Fast Additional Predictions From a Single Dataset via AEM
- Workshops
- Analysis of a Truss Structure
- Analysis of a Rotating Cam Mechanism
- Estimating forces in a support strap due to a dropped mass
Course Duration
Prerequisites
- General BS Mechanical Engineering degree or equivalent experience
- Basic understanding of digital signal processing similar to that taught in DSP Essentials module is recommended
Training Delivery Options
- Public Web Training via Zoom
- 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.
