dmp_t120spr11megdmp_t21spr2200kmentDisplace-shaker_table1mentDisplace-shaker_table2pole_pairscomplexSum of Nu1Displace-mentForcem22mm10.025dmp_t310spr3200km50.025dmp_t410spr4200km60.025displacement_basedisplacement_sensorpos_base_cpfsensor_displacementdisplacement_structure_1displacement_structure_2displacement_structure_3pole_pairscomplexSum of Nbase_displacementreaction_forceu2