TAGGED: -mode-extraction, mechanical, simulation
-
-
August 5, 2024 at 9:48 amleo liuBbp_participant
I want to use the Cyclic region function to calculate the vibration frequency of the whole disk through a sectoral bladed disk model.The calculation results include different frequencies under each node diameters. Then I extracted the mass matrix and stiffness matrix of the single sector blisk with the Cyclic Region boundary condition. Using the extracted matrix, I calculated its mode shape, which is the same as the mode shape under 0node diameter calculated by ansys. I want to know how to extract the stiffness matrix and mass matrix under other node diameters.
-
August 7, 2024 at 12:56 pmdloomanAnsys Employee
The difference between the stiffness matrix at different harmonic indices is the constraint equations created to enforce the harmonic index shape. These constraint equations are created during solution. A possible way to create a model for a harmonic index greater than 0 is to issue the command cycopt,hindex,N in a commands object. Then the system matrices will be only for harmonic index N.
-
- You must be logged in to reply to this topic.
- Why are the coordinates I specified and the coordinates outputted in the report
- Processing problems using the cyclic region function
- Boundary Condition Definition
- Material properties get lost while importing .cdb file
- Workbench has Crashed
- Mesh coarsening algorithm on APDL
- Topology does not match the blade profile
- 2D asymmetrical airfoil mesh
- Meshing problem with die-extrudate interface
-
366
-
187
-
167
-
156
-
140
© 2024 Copyright ANSYS, Inc. All rights reserved.