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1、接触和热偶合场分析，圆盘如何转动分析制动器的接触应力和摩擦热应力偶合分析，请高手指点如何使圆盘转动。我试了三种方法：在拄坐标下给圆盘约束UY一个值；用CMOMEGA给圆盘角速度；在拄坐标下用cp给圆盘初始角速度，全不行！命令流如下： /PREP7 UIMP,1,EX,,,70000,UIMP,1,DENS,,,2.7E-9,UIMP,1,ALPX,,,23.86E-6,UIMP,1,NUXY,,,0.3,UIMP,1,MU,,,0.2,UIMP,1,KXX,,,150,UIMP,1,C,,,9E8, ET,1,SOLID5 CYL4,,,125,,25
2、0,,30 CYL4,,,170,,250,90,-30 wpoffs,,,30CYL4,,,170,,250,90,30 lsel,s,line,,1,16,1lsel,a,line,,24,25,1lsel,a,line,,22lsel,a,line,,27lsel,a,line,,36,37,1lsel,a,line,,34lsel,a,line,,39LESIZE,all,,,20,,,,,1 allsel,all type,1mat,1vsweep,all ET,2,170ET,3,174,1 ASEL,S,,,2NSLA,S,1R,1
3、 TYPE,2 ESURF allsel ASEL,S,,,13NSLA,S,1TYPE,3ESURF allsel ET,4,170ET,5,174,1 R,3real,3ASEL,S,,,1NSLA,S,1TYPE,4ESURF allsel ASEL,S,,,8NSLA,S,1TYPE,5ESURF allsel *DIM,PRE,TABLE,2,1,1,TIMEPRE(1,0,1)=0PRE(1,1,1)=100PRE(2,0,1)=10PRE(2,1,1)=100 SFA,7,1,PRES,%PRE%SFA,14,1,PRES,%
4、PRE% /soluTUNIF,20csys,1da,7,ux,0da,7,uy,0da,14,ux,0da,14,uy,0 DL,5,,UZDL,6,,UZDL,7,,UZDL,8,,UZ VSEL,S,,,1ESLV,SCM,rotor,ELEMCMOMEGA,ROTOR,0,0,300,0,0,2allsel ANTYPE,TRANSTIMINT,OFF,STRUCTINTPR,,,,1.0NLGEOM,ONTIME,0.3AUTO,ONNSUB,100,10000,100OUTRES,ALL,-20NROP,UNSYMSOLVE一个接触问题的热－结
5、构耦合例子/prep7ET,1,PLANE13,4 RECT,,5,,1.25RECT,,1.25,1.25,2.5LESIZE,ALL,0.25,,,1,1AMESH,ALLUIMP,1,EX,,,70000,UIMP,1,DENS,,,2.7E-9,UIMP,1,ALPX,,,23.86E-6,UIMP,1,NUXY,,,0.3,UIMP,1,MU,,,0.2,UIMP,1,KXX,,,150,UIMP,1,C,,,9E8,TOFFSET,460TUNIF=0.0ET,2,TARGE169 !2-DTargetSegmentET,3,CONTA171 !
6、2-DSurface-to-SurfaceContactKEYOPT,3,1,1ASEL,S,,,1NSLA,S,1NSEL,R,LOC,Y,1.25R,1TYPE,2ESURFALLSETASEL,S,,,2NSLA,S,1NSEL,R,LOC,Y,1.25TYPE,3ESURFALLSEL,ALL*DIM,PRE,TABLE,2,1,1,TIME!*SFL,7,PRES,%PRE%PRE(1,0,1)=0PRE(1,1,1)=10PRE(2,0,1)=10PRE(2,1,1)=10ALLSEL/SOLUNSUB,1ASEL,S,,,2NSLA,S,1NSEL,
7、R,LOC,X,1.25D,ALL,UX,3.75ALLSELASEL,S,,,1NSLA,S,1D,ALL,UX,0D,ALL,UY,0ALLSELANTYPE,TRANSTIMINT,OFF,STRUCTINTPR,,,,1.0NLGEOM,ONTIME,3.75E-3AUTO,ONNSUB,100,10000,100OUTRES,ALL,-10NROP,UNSYMSOLVE
