Ansys nCode DesignLife Frequency Domain Analysis

Overview

Many components in various industries are subjected to vibration loadings.  Some common examples are transportation vehicles and industrial equipment such as pumps and valves.  The vibration loadings produce fluctuating stresses that cause fatigue damage.  Understanding the extent of the induced fatigue damage is critical.  Fatigue induced failures have been estimated to cost more than 20 billion dollars per year in the US alone. In addition, physical fatigue testing is difficult, time consuming, and expensive.  Thus, accurately assessing fatigue damage caused by vibratory loading using CAE is critical in developing efficient, safe, successful designs.  

Ansys nCode DesignLife can be used to virtually assess fatigue damage using finite element stress/strain results.  DesignLife can be used with many finite element codes, but Ansys nCode DesignLife is integrated with Ansys Mechanical to simplify the analysis process.  The integration of Ansys nCode DesignLife with Ansys Mechanical using the Workbench platform will be a focus of the premium learning material. 

Learning Outcomes: 

Following completion of this premium learning material, you will be able to:   

• Understand basics of using Ansys nCode DesignLife to evaluate vibration fatigue. 
• Demonstrate a general understanding of the options available for setting up the harmonic analysis in Mechanical, integrate Mechanical and Ansys nCode DesignLife on Workbench, and interpret the fatigue results.   
• Assess the fatigue damage caused by harmonic loading such as: Sine Dwell and Sweep Sine loading using Ansys nCode DesignLife. 
• Access the fatigue damage caused by Random Vibration loading. 

Prerequisites: 

• A working understanding of Ansys Mechanical is required.
• A basic understanding of Linear Dynamics analysis is required.
• A basic understanding of Time Domain Fatigue analysis is required.
• A basic understanding of fatigue theory is required.

Estimated Time: 8 hours