Earthquake Simulation: Response Spectrum and Transient Analysis
Assessment methods with Ansys Mechanical
In this training, you will acquire knowledge about model building, solver selection, load condition superposition, and result evaluation in accordance with the requirements of applicable standards. This training is offered as a 1-day course.
Duration
1 day
Prerequisites
Basic knowledge of Ansys Mechanical
Software used
Ansys Mechanical
- Options, limits of common analysis procedures for earthquake verification
- Modeling and settings in Ansys in accordance with applicable standards
- Implementing prescribed result superpositions
- Exercises for implementation of analysis types in Ansys Mechanical
Description
Seismic assessments are not only required for buildings, but also increasingly for machines and equipment that are located in earthquake-prone areas. The standards that apply in such cases often permit different analysis type. Response spectrum method as the most widely used. Time history analyses via transient analyses has also become increasingly prevalent. Independent of the individual standards, this training describes the theoretical and practical foundations of these methods, explains their capabilities and limitations, and describes the implementation of the settings required by the standards in Ansys Mechanical.
This will help you to deepen your understanding of the modeling and settings prescribed/that need to be selected in the applicable standards and will allow more purposeful implementation in simulation with Ansys Mechanical. In addition, you will also learn which results can be assessed and how prescribed result superpositions need to be carried out. This training is aimed at computation engineers who need to create earthquake verifications in accordance with common standards. You should be familiar with structural mechanics simulation for deformation and stress analyses and have basic knowledge of structural mechanics. You will carry out practical exercises with Ansys.
Detailed agenda for this 1-day training
Day 1
01 How can earthquake verifications be conducted?
- Overview of common analysis methods and their evaluation
- The quasi-static method, response spectrum method, and time history method compared
- Prerequisites, pros and cons
- Estimating costs and benefits
- Linear and non-linear models
- The significance of modal analysis and modal superposition
- Proportional and non-proportional damping
02 Theory of response spectrum analysis: prerequisites, advantages and limitations
- Theoretical principles
- Creating a response spectrum based on a time series
- Single-point and multi-point excitation
- The significance of superposition methods SRSS, CQC, and ROSE
- Residual vectors, missing mass, and rigid response methods for improving accuracy
- Exercise: The settings of spectra, superposition, and improvement methods in Ansys Mechanical
03 Application of response spectrum analysis: tips and tricks
- Modal analysis: Solver selection and model prerequisites
- Selecting and limiting modes: Accuracy and efficiency
- The impact and consideration of damping
- Evaluating and analyzing results: Components:
- Main and equivalent stresses
- Superposition with other load scenarios: Statics, etc.
- Exercise: Response spectrum analysis following prestressed modal analysis with results superposition
04 Transient earthquake simulation: possibilities and risks
- Transient load signals: Real or based on the response spectrum
- Numerical integration: Implicit or explicit
- Linear or non-linear transient analysis
- Analysis settings: Loads, time step, damping:
- Postprocessing: Maximum search and superposition
- Exercise: Earthquake simulation with linear transient analysis and comparison with response spectrum analysis
Your Trainers
Dr.-Ing. Ulrich Stelzmann
Dr. Ing. Benoit Fontenier
Placement in the CADFEM Learning Pathway
Participant data
Additional information
Commentary
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