*HEADING VIBRATION OF A CABLE UNDER TENSION *ELEMENT,TYPE=B21,ELSET=EONE 1,1,2 *ELGEN,ELSET=EALL 1,13 *MATERIAL,NAME=A1 *ELASTIC 30.E6, *DENSITY .00073, *BEAM SECTION,SECTION=CIRC,MATERIAL=A1,ELSET=EALL 0.031249, *NODE 1, 14,100. *NGEN 1,14 *BOUNDARY 1,1,2 14,2 *STEP,NLGEOM STRETCH CABLE *STATIC *CLOAD 14,1,500. *NODE FILE,FREQUENCY=0 *OUTPUT,FIELD,FREQ=0 *NODE OUTPUT *EL PRINT,FREQUENCY=0 *NODE PRINT U,RF,CF *END STEP *STEP,NLGEOM EXTRACT MODE FREQUENCIES *FREQUENCY, eigensolver=lanczos, SIM=NO 4, ,1000., *EL PRINT,FREQUENCY=0 *NODE FILE,FREQUENCY=0 *OUTPUT,FIELD,FREQ=0 *NODE OUTPUT *MODAL FILE *OUTPUT,HISTORY,FREQUENCY=1 *MODAL OUTPUT *ELEMENT MATRIX OUTPUT,ELSET=EALL,STIFFNESS=YES,MASS=YES,FREQUENCY=1 *ELEMENT MATRIX OUTPUT,ELSET=EALL,STIFFNESS=YES,MASS=YES,FREQUENCY=1, OUTPUT FILE=USER DEFINED *END STEP