OptiStruct – Mode Tracking and Rotor Energy from Complex Eigen Value Analysis
Product: OptiStruct
Product Version: OptiStruct 2019.0 or above
Topic Objective
Mode tracking and rotor energy from complex eigen value analysis with OptiStruct.
Topic Detail
Mode Tracking is now available for rotor dynamics with complex eigenvalue analysis
• It is mapping the mode-shapes of a system from one state to another.
• Tracking is carried out using various methods shown in the below bulk card.
• Assumption is that the two states are close for eigenvectors to retain orthogonality across states.
• Mode-tracking in rotor dynamics tracks modes across rotor speeds and yields a much better Campbell diagram, as shown below.