1、两端三个弯弹簧结构且增大电极面积开关 - 副本finish/clear,nostart/title,SWITCH /noprl=760 ! length of beam, umtc=3 ! beam height, umw=140 ! beam width, umta=10 ! gap, umx=30y=100z=100tx=40 !upty=30 !downV=10 ! applied voltage, Vepse=1 ! air permittivity, relativestre=-100!fz=0/PREP7et,1,SOLID186,1 ! 20-node structural br
2、ickmp,ex,1,78e3 ! MPamp,prxy,1,0.42mp,dens,1,1.93e-14 ! kg/(um)3et,2,SOLID226,1001,1 ! 20-node “elastic air“ brickmp,ex,2,1.0e-12 ! MPamp,prxy,2,0 mp,perx,2,epseemunit,EPZRO,8.854e-6 ! pF/umblock,-l/2,l/2,w/2,-w/2,ta,ta+tcblock,-(y+z),-y,w/2+tx,w/2,ta,ta+tcblock,-(y+z),-y,-(w/2+ty),-w/2,ta,ta+tcbloc
3、k,y+z,y,w/2+tx,w/2,ta,ta+tcblock,y+z,y,-(w/2+ty),-w/2,ta,ta+tcVADD,1,2,3,4,5block,-(l/2-x),-(l/2-2*x),w/2-20,-w/2,ta,ta+tcblock,-(l/2-3*x),-(l/2-4*x),w/2,-(w/2-20),ta,ta+tcblock,-(l/2-5*x),-(l/2-6*x),w/2-20,-w/2,ta,ta+tcblock,(l/2-x),(l/2-2*x),w/2-20,-w/2,ta,ta+tcblock,(l/2-3*x),(l/2-4*x),w/2,-(w/2-
4、20),ta,ta+tcblock,(l/2-5*x),(l/2-6*x),w/2-20,-w/2,ta,ta+tcvsbv,6,1vsbv,8,2vsbv,1,3vsbv,2,4vsbv,1,5vsbv,2,7block,-l/2,l/2,w/2+tx,-(w/2+ty),0,tak,200,-(y+z),w/2+txk,201,-(y+z),-(w/2+ty)k,202,-y,w/2+txk,203,-y,-(w/2+ty)k,204,y,w/2+txk,205,y,-(w/2+ty)k,206,(y+z),w/2+txk,207,(y+z),-(w/2+ty)lstr,200,201ls
5、tr,202,203lstr,204,205lstr,206,207asbl,31,147,keepasbl,51,148,keepasbl,31,149,keepasbl,51,150,keepallselvglue,allesize,10!smrtsize,8mshape,1,3dmshkey,0vsel,s,volu,1 ! mesh beamtype,1mat,1vmesh,1esize,10!smrtsize,8mshape,1,3d ! set element shape to tetmshmid,2mshkey,0 ! drop mid-side nodesvsel,s,volu
6、,3 ! mesh air gaptype,2mat,2vmesh,3allsel/view,1,1,1,1/number,1/pnum,type,1eplotfini/SOLUpstres,oninistate,SET,DTYP,STREinistate,set,mat,1inistate,define,stre!acel,9.8e6asel,s,loc,x,l/2 ! structural BCasel,a,loc,x,-l/2da,all,ux,0da,all,uy,0da,all,uz,0asel,s,loc,z,0da,all,ux,0da,all,uy,0da,all,uz,0al
7、lsel!asel,s,area,14,1!sfa,all,PRES,fz!allselasel,s,area,7,1 ! electrical BCasel,a,area,13asel,a,area,19asel,a,area,25asel,a,area,40 da,all,volt,0 ! ground*DO,I,10,60,10asel,s,area,55,1 ! electrical BC asel,a,area,58 da,all,volt,V ! electrodeV=V+10allselcnvtol,f,1,1e-3outres,nsol,1 neqit,50nlgeom,on!
8、deltim,10!time,V ! Time = voltage!kbc,0 solve*ENDDOfinindisp=node(0,-w/2,ta) ! node for displacement display/POST26nsol,2,ndisp,u,z/axlab,y,UZ /axlab,x,Voltage prvar,2 plvar,2 fini1.启动安装 Autodesk AutoCAD 2012 2.输入安装序列号： 666-69696969, 667-98989898, 400-45454545 3.输入密匙： 001D1 4.完成安装，重启 CAD。 5.点击激活按钮之前 你有 2个选择: a)禁用您的网络或拔掉网线;b)点击激活后它会告诉您,您的序列号是错误的,这时点击上一步等一会再点击激活即可。 选择了 a或 b后看下一步。 6.在激活界面中选择我拥有一个 Autodesk激活码 7.一旦到了激活屏幕:启动注册机如果你是 32位的请启用 32位的注册机如果是 64位的请启动 64位的注册机。 8.先粘贴激活界面的申请号至注册机中的 Request中， 9.点击 Generate算出激活码,在注册机里点 Mem Patch键否则无法激活提示注册码不正确。 10.最后复制 Activation中的激活码至“输入激活码”栏中，并点击下一步注册成功。
