NAS127 - Rotordynamic Analysis using MSC Nastran

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This course covers:

  • Rotordynamic analysis for coupled rotating and stationary components
    • For example: Jet Engines, Turbines, Compressors, Energy Storage Devices
  • How to setup and analyze structural models with one or more rotating components
  • The types of analysis supported by the rotordynamics capability
    • Static analysis
    • Complex eigenvalue analysis (modal and direct)
    • Frequency response (modal and direct) and nonlinear frequency response
    • Transient response (direct linear and nonlinear)
  • Damping effects and input methods for models with rotating components
  • How to use Patran to create models and display results with animation or graphs

There are two sets of workshops for this course. One set uses Patran as the pre- and post-processor. The other directly edits the MSC Nastran input file.

Length: 
2 days
Pre-requisites : 
NAS120 (Linear Static Analysis Using MSC Nastran and Patran) and NAS122 (Basic Dynamic Analysis Using MSC Nastran and Patran) or NAS102A (Dynamic Analysis using MSC Nastran) and NAS102B (Advanced Dynamic Analysis Using MSC Nastran).
Topics: 
  • Theory
    • Static Analysis
    • Complex Eigenvalue Analysis
    • Frequency Domain Analysis
    • Time Domain
    • Multiple and Reference Rotors
  • New Forms of Damping Input
    • Damping Input Entries
    • Rotordynamic Bulk Data Entries
    • Parameters
  • Patran Support
  • Example Cases
    • Line Model without Superelements
    • 3D Example
    • Frequency Response
    • 3D-2 Rotor Model
    • Typical Commercial Jet Engine
    • Hybrid Damping
  • Nonlinear Frequency Response