文档介绍：Course in ANSYS
Day 5
Lesson 13. Vibration/dynamic Analysis
Vibration/dynamic Analysis
Outline for Course in ANSYS:
Day 1
Lesson 1. Introduction to ANSYS
Lesson 2. Basics
Lesson 3. Solution phases
Day 2
Lesson 4. Modeling
Day 3
Lesson 5. Material
Lesson 6. Loading
Lesson 7. Solution
Day 4
Lesson 8. Structural analysis
Lesson 9. Postprocessing
Lesson 10. Constraint equations
Lesson 11. Parameters
Lesson 12. Macros
Day 5
Lesson 13. Vibration/dynamic analysis
Lesson 14. Thermal
Lesson 13 2
1
Vibration/dynamic Analysis
Programme for Lesson:
• Modal analysis (MA)
– MA – Steps
– MA – Input
– MA – ExpansionPass
– MA – Analysis Options
– MA – Mode extraction method
– MA – Options
– MA – Define Loads
– MA – Load Step Options
– MA – General Postprocessing
• Harmonic response analysis (HRA)
– HRA – Steps
– HRA – Loads
– HRA – Input
– HRA – Load Step Options
– HRA – Freq and Substps
– HRA – Solution options
• Transient dynamic analysis (TDA)
– TDA – Steps
– TDA – Solution Methods
– TDA – Analysis options
– TDA – Solution Controls
• Spectrum analysis (SA)
– Steps in a Single-Point Response Spectrum (SPRS) Analysis
– Steps in Random Vibration (PSD) Analysis
Lesson 13 3
Modal analysis (MA)
• You use modal analysis to determine the
vibration characteristics (natural
frequencies and mode shapes) of a
structure or a ponent while it
is being designed. It also can be a starting
point for another, more detailed, dynamic
analysis, such as a transient dynamic
analysis, a harmonic response analysis, or
a spectrum analysis.
Lesson 13 4
2
Modal analysis (MA)
• You use modal analysis to determine the
natural frequencies and mode shapes of a
structure. The natural frequencies and
mode shapes are important parameters in
the design of a structure for dynamic
loading conditions. They are also required
if you want to do a spectrum analysis or a
mode superposition ha