*HEADING ELEMENT TESTED : S4R SECONDARY SURFACE TYPE : NODE MAIN SURFACE TYPE : NODE *PREPRINT, ECHO=YES, MODEL=YES, HISTORY=YES *NODE 1, 0., 30. 2, 15., 15. 3, 25., 25. 4, 0., 50. 5, 0., 10. 6, 5., 5. 7, 30., 0. 8, 50., 0. 9, 10., 0. *ELEMENT, TYPE=S4R, ELSET=EALL 1, 1, 2, 3, 4 2, 2, 1, 5, 6 3, 2, 7, 8, 3 4, 7, 2, 6, 9 *NSET, NSET=NBC 5, 6, 9 *NSET, NSET=NSECONDARY, GENERATE 7, 9, 1 *NSET, NSET=NMAIN 1, 4, 5 *SURFACE, NAME=SSECONDARY, TYPE=NODE NSECONDARY, *SURFACE, NAME=SMAIN, TYPE=NODE NMAIN, *SHELL SECTION, ELSET=EALL,MATERIAL=MAT 1., *MATERIAL,NAME=MAT *ELASTIC 10E8,0.3 *DENSITY 100, *TIE, CYCLICSYM, POSITION=0.5, NAME=TIE1 SSECONDARY, SMAIN *CYCLIC SYMMETRY MODEL,N=4 0,0,0, 0,0,1 *STEP *FREQUENCY, EIGENSOLVER=LANCZOS, SIM=NO 12, *OUTPUT, FIELD, FREQUENCY=0 *END STEP