How to perform a Random Vibration Fatigue Analysis — Lesson 4
Many of the components are subjected to repeated loading which is of random nature in day-to-day life. Even though these loadings generate low stresses in the components, continuous loads often cause fatigue. As a result, it is critical to do a fatigue study to assess the damage caused by the vibrations and to compute the estimated life of the part concerned. In this video, we'll go through the importance of performing a random vibration fatigue study and how to accomplish it in Ansys Mechanical using the Fatigue Tool.
Video Highlights:
1:20 - Random Vibration Analysis (General)
2:04 - Stress Life and Strain Life fatigue analysis
2:44 - Ansys Fatigue Tool (General)
3:22 - Engineering Data — Defining a Material
6:38 - Cycle Counting Methods for Vibration-Induced Fatigue Analysis
8:37 - Statistical Frequency Definition
8:52 - Random Vibration Analysis Settings
10:40 - Mode superposition Workflow on the Project Page
11:28 - Modal Analysis — Analysis Settings
11:51 - Modal Analysis — Boundary Conditions
12:10 - Random Vibration — Loads
12:48 - Random Vibration — Analysis Settings
13:01 - Random Vibration Analysis Results
Simulation Files
Download the accompanying archived project files used in the video lesson here. Ansys Student can be downloaded for free here.
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