Discrimination and Experimental Study of HSCCC Operational Modal based on LSCF

Abstract The dynamic characteristics of high-speed counter-current chromatography (HSCCC) have a significant impact on its separation efficiency and equipment stability. accurate discrimination the characteristic during process constitutes prerequisite for clarifying mechanism performance improvement. This study establishes HSCCC operational modal model using least-square complex frequency domain method (LSCF) then derives function based cross-power spectral density (CPSD) cross-half power (PSD) function. Then an acquisition analysis system was built in three directions at six common speeds. Finally, inherent frequencies mode vibration experimental modes were verified by Modal Assurance Criterion (MAC), Mean Phase Deviation (MPD), Collinearity (MPC), Mode Indicator Functions (MIF) this study. results prove feasibility proposed method. It shows that CPSD is more applicable to analysis, which should be considered actual analysis.