OptiStruct offers many features that reduce solution time and simulation complexities.
Automatic Multilevel Substructuring Eigen Solver (AMSES):
• | Comes with the OptiStruct solver at no additional cost |
• | Runs on Windows (all new PC's are multi-core with large RAM) |
• | Handles unconnected structures |
Automatic result filtering (PEAKOUT):
• | Detailed results for peak response frequencies in a single run |
• | Without this, since frequencies with peak Dynamic Response are not known ahead of time, a second run must be made to get detailed results output |
Advanced Dynamic Reduction Technologies:
• | CMS Superelement (free, fixed and mixed boundary) |
• | CDS Superelement (FRF based) |
Significantly Enhanced Bushing Element (PBUSH and PBUSHT):
• | Directional mass and inertia can be defined, in addition to directional stiffness and directional damping |
• | RIGID option for stiffness DOFs |
• | Simplifies joint modeling by encapsulating multiple elements into one CBUSH |
AutoTPA (PFPATH)
• | All results needed for TPA analysis can be output during a single frequency response run |
• | Transfer paths can be determined by control volume definitions |
• | Improvements to traditional TPA process: |
o | No need to make two separate runs |
o | No need to worry about matching forces and transfer functions |
See Also:
Dynamic Reduction Techniques
NVH Analysis