压电材料悬梁臂结构ansys分析:固定端边界如何施加加速度,上下层材料间怎么加电阻circu94分析?
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压电材料悬梁臂结构ansys分析:固定端边界如何施加加速度,上下层材料间怎么加电阻circu94分析?
这个是悬臂梁的振动产生电信号,加速度不应该加载固定边界上,加速度用Global 添加就可以了.circu94 你可以用下面的程序.
finish
/clear
resume
!2.4) Harmonic analysis with resistor
/COM,Harmonic analysis around first frequency with
/COM,resistance load
/COM,Create circuit geometry
/PREP7
/COM,Define real constants for circuit elements
R,4,150 000 !Define Resistor Properties (Defaults)
!Application of material properties to solid geometry
NUMSTR,NODE,1005505
N,1e-3,-5e-3,2e-3,!Defines node 1 for circuit
N,5e-3,-5e-3,2e-3,!Defines node 2 for circuit
ET,6,CIRCU94,0
/COM,Create circuit elements on geometry
TYPE,6 !Set circuit element type (Resistor)
REAL,4 !Set circuit element constants (Resistance)
E,1005505,1005506 !Plot Resistor
/ICSCALE,1,0.1 !Scale circuit elements to correct size
/COM,Couple voltage degrees of freedom between circuit
/COM,and FE model.Places resistor between top and bottom
/COM electrode
NSEL,S,NODE,1005505 !Select input node in circuit
CP,1,VOLT,ALL !Couple voltage Degree of Freedom on top elect
NSEL,S,NODE,1005506 !Select input node in circuit
CP,2,VOLT,ALL !Couple voltage Degree of Freedom on centre elect
ALLSEL,ALL,ALL !Select all entities
FINISH
/COM,Harmonic analysis with resistor coupled to outer electrodes
/SOLU
ANTYP,HARM !Set harmonic analysis
/COM Set constraints on DOF
NSEL,S,LOC,X,0 !Select nodes at fixture location
D,ALL,UX,0,UY,UZ,!Constrain all DOF
HARFRQ,Fn-5,Fn+5 !Set frequency range
NSUBST,21 !Set 2.5 Hz increments
KBC,1 !Loads step changed
!Ground lower electrode
NSEL,S,LOC,Z,0,1e-7
NSEL,R,LOC,X,0,lp
D,all,VOLT,0
DMPRAT,0.02 !Constant damping ratio
ALLSEL
ACEL,0,0,10 !Set accelerations
SOLVE
FINISH
/post26
NSOL,3,1005506,VOLT,,V2
FILE,'file','rst','.'
/UI,COLL,1
NUMVAR,200
SOLU,191,NCMIT
STORE,MERGE
PLCPLX,0
PRCPLX,1
FILLDATA,191,1,1
REALVAR,191,191
XVAR,1
PLVAR,3,
PRVAR,3,
finish
/clear
resume
!2.4) Harmonic analysis with resistor
/COM,Harmonic analysis around first frequency with
/COM,resistance load
/COM,Create circuit geometry
/PREP7
/COM,Define real constants for circuit elements
R,4,150 000 !Define Resistor Properties (Defaults)
!Application of material properties to solid geometry
NUMSTR,NODE,1005505
N,1e-3,-5e-3,2e-3,!Defines node 1 for circuit
N,5e-3,-5e-3,2e-3,!Defines node 2 for circuit
ET,6,CIRCU94,0
/COM,Create circuit elements on geometry
TYPE,6 !Set circuit element type (Resistor)
REAL,4 !Set circuit element constants (Resistance)
E,1005505,1005506 !Plot Resistor
/ICSCALE,1,0.1 !Scale circuit elements to correct size
/COM,Couple voltage degrees of freedom between circuit
/COM,and FE model.Places resistor between top and bottom
/COM electrode
NSEL,S,NODE,1005505 !Select input node in circuit
CP,1,VOLT,ALL !Couple voltage Degree of Freedom on top elect
NSEL,S,NODE,1005506 !Select input node in circuit
CP,2,VOLT,ALL !Couple voltage Degree of Freedom on centre elect
ALLSEL,ALL,ALL !Select all entities
FINISH
/COM,Harmonic analysis with resistor coupled to outer electrodes
/SOLU
ANTYP,HARM !Set harmonic analysis
/COM Set constraints on DOF
NSEL,S,LOC,X,0 !Select nodes at fixture location
D,ALL,UX,0,UY,UZ,!Constrain all DOF
HARFRQ,Fn-5,Fn+5 !Set frequency range
NSUBST,21 !Set 2.5 Hz increments
KBC,1 !Loads step changed
!Ground lower electrode
NSEL,S,LOC,Z,0,1e-7
NSEL,R,LOC,X,0,lp
D,all,VOLT,0
DMPRAT,0.02 !Constant damping ratio
ALLSEL
ACEL,0,0,10 !Set accelerations
SOLVE
FINISH
/post26
NSOL,3,1005506,VOLT,,V2
FILE,'file','rst','.'
/UI,COLL,1
NUMVAR,200
SOLU,191,NCMIT
STORE,MERGE
PLCPLX,0
PRCPLX,1
FILLDATA,191,1,1
REALVAR,191,191
XVAR,1
PLVAR,3,
PRVAR,3,
压电材料悬梁臂结构ansys分析:固定端边界如何施加加速度,上下层材料间怎么加电阻circu94分析?
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