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/COM,ANSYS MEDIA REL. 121 (10/15/2009) REF. VERIF. MANUAL: REL. 121
/VERIFY,VM239
/OUT,SCRATCH
/PREP7
/OUT
/COM
/TITLE, VM239, MECHANICS OF THE REVOLUTE AND UNIVERSAL JOINTS
/COM
/COM
/COM J.E. SHIGLEY AND J.J. UICKER, THEORY OF MACHINES AND
/COM MECHANISMS 2ND EDITION, P. 115, 1995.
/COM
/COM ***ANALYSIS USING ALL FLEXIBLE BODIES
/COM
/COM
!C*** ADD UNIVERSAL JOINT MECHANISM TO THE ABOVE PROBLEM.
!C*** PERFORM ANALYSIS USING ALL FLEXIBLE BODIES
/OUT,SCRATCH
PI=4*ATAN(1.0)
MULT = 12
PI15 = PI/MULT
ANG = PI15*3
R = .5 ! LENGTH OF ROTATING ARM
L = 1.5 ! LENGTH OF CRANK
ZDIST = L*SIN(ACOS(R/L))
!C*** DEFINING ELEMENTS AND MATERIAL PROPERTIES
ET,1,BEAM188 ! BEAM ELEMENTS
ET,2,MPC184,7 ! UNIVERSAL JOINT
ET,3,MPC184,6 ! REVOLUTE JOINT
ET,4,MPC184,3 ! SLIDER
MP,EX,1,30E6
MP,PRXY,1,0.33
MP,DENS,1,10.0
TYPE,1
MAT, 1
SECTYPE, 1, BEAM, CSOLID !其中csolid为截面类型
SECDATA, .05 !定义的圆柱为0.05
!C*** CREATING NODES AND LINK ELEMENTS
N,1, 0,0,0
N,2, 1,0,0
N,3, 1,0,0
N,4, 1+COS(ANG), SIN(ANG), 0.0
N,5, 1+COS(ANG), SIN(ANG), 0.0
N,6, 2+COS(ANG),SIN(ANG),0
N,8, 2+COS(ANG),.5+SIN(ANG),0
N,9, 2+COS(ANG),.5+SIN(ANG),0
N,10, 2+COS(ANG),SIN(ANG),ZDIST
N,11, 2+COS(ANG),SIN(ANG),.75
N,12, 2+COS(ANG),SIN(ANG),2.25
N,13, 2+COS(ANG),SIN(ANG),2.26
N,14, 2+COS(ANG),SIN(ANG),.74
TYPE,1
MAT, 1
SECNUM, 1
EN,1, 1,2
EN,2, 3,4
EN,3, 5,6
EN,4, 6,8
EN,5, 9,10
EN,6, 11,12
EN,11, 12,13
EN,12, 11,14
LOCAL,11,0, 0,0,0,-90.0 ! DEFINING LOCAL CSYS FOR UNIV. JOINTS
LOCAL,12,0, 0,0,0,-45.0
LOCAL,14,0, 0,0,0, 0, ! DEFINING LOCAL CSYS FOR REVO. JOINTS
LOCAL,15,0, 0,0,0, 0,
CSLIST
!C*** CREATING UNIVERSAL CONNECTIVITY ELEMENTS
SECTYPE,2,JOIN,UNIV,TESTING02 ! DEFINING UNIVERSAL JOINT
SECJOINT,1,11,12
TYPE,2
SECNUM,2
EN,7, 2,3
SECTYPE,3,JOIN,UNIV,TESTING03 ! DEFINING UNIVERSAL JOINT
SECJOINT,1,11,12
TYPE,2
SECNUM,3
EN,8, 5,
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