OptiStruct – Mode Tracking and Rotor Energy from Complex Eigen Value Analysis
Product Version: OptiStruct 2019.0 or above
Mode tracking and rotor energy from complex eigen value analysis with OptiStruct.
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.