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《隧道及地下工程ansys實(shí)例分析雙線鐵路隧道襯砌結(jié)構(gòu)設(shè)計(jì)力學(xué)分析》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、第1章大型有限元軟件ANSYS簡(jiǎn)介 105.1二次襯砌結(jié)構(gòu)力學(xué)分析/TITLE,Mechanicalanalysisonrailwaytunnel2ndlining!確定分析標(biāo)題/NOPR!菜單過(guò)濾設(shè)置/PMETH,OFF,0KEYW,PR_SET,1KEYW,PR_STRUC,1!保留結(jié)構(gòu)分析部分菜單/COM,/COM,PreferencesforGUIfilteringhavebeensettodisplay:/COM,Structural!/PREP7!進(jìn)入前處理器ET,1,BEAM3!設(shè)置梁?jiǎn)卧愋虴T,2,COMBIN14!設(shè)置彈簧單元類型R,1,0.4,
2、0.0053333,0.4,,,,!設(shè)置梁?jiǎn)卧獛缀纬?shù)R,2,400e6,,,!設(shè)置彈簧單元幾何常數(shù)MPTEMP,,,,,,,,!設(shè)置材料模型MPTEMP,1,0MPDATA,EX,1,,30.0e9!輸入彈性模量MPDATA,PRXY,1,,0.2!輸入泊松比MPTEMP,,,,,,,,!設(shè)置材料模型MPTEMP,1,0MPDATA,DENS,1,,2500!輸入密度SAVE!保存數(shù)據(jù)庫(kù)1.建立幾何模型K,1,,,,!創(chuàng)建關(guān)鍵點(diǎn)(隧道二次襯砌)K,2,4.71,-1.82,,K,3,-4.71,-1.82,,K,4,0,-3.75,,K,5,0,5.05,,K,20,5.6,-2
3、.162,,!創(chuàng)建關(guān)鍵點(diǎn)(地層彈簧)K,30,-5.6,-2.16,,K,40,0,-4.75,,K,50,0,6,,!創(chuàng)建隧道襯砌線LARC,2,5,1,5.05,!創(chuàng)建圓弧線(拱頂部)LARC,5,3,1,5.05,LARC,2,3,4!創(chuàng)建圓弧線(仰拱部)!創(chuàng)建地層彈簧線第1章大型有限元軟件ANSYS簡(jiǎn)介 10LARC,20,50,1,6,!創(chuàng)建圓弧線(拱頂部)LARC,50,30,1,6,LARC,20,30,40!創(chuàng)建圓弧線(仰拱部)SAVE!保存數(shù)據(jù)1.單元網(wǎng)格劃分設(shè)置單元大小并將所有直線劃分單元,其單元圖如圖5-8所示。LESIZE,ALL,,,10,
4、,1,,,1,!設(shè)置單元大小,每條弧線劃分成10個(gè)單元TYPE,1!設(shè)置將要?jiǎng)?chuàng)建單元的類型MAT,1!設(shè)置將要?jiǎng)?chuàng)建單元的材料REAL,1!設(shè)置將要?jiǎng)?chuàng)建單元的幾何常數(shù)LMESH,1,6,1!將所有直線劃分單元/PNUM,KP,0!以下為顯示單元編號(hào)和顏色/PNUM,ELEM,1/REPLOT!重新顯示SAVETYPE,2!設(shè)置將要?jiǎng)?chuàng)建單元的類型MAT,1!設(shè)置將要?jiǎng)?chuàng)建單元的材料REAL,2!設(shè)置將要?jiǎng)?chuàng)建單元的幾何常數(shù)E,1,31!通過(guò)兩個(gè)節(jié)點(diǎn)創(chuàng)建彈簧單元E,2,32E,3,33E,4,34E,5,35E,6,36E,7,37E,8,38E,9,39E,10,40E,11,41E,12
5、,42E,13,43E,14,44E,15,45E,16,46E,17,47E,18,48E,19,49E,20,50E,21,51E,22,52E,23,53E,24,54E,25,55E,26,56第1章大型有限元軟件ANSYS簡(jiǎn)介 10E,27,57E,28,58E,29,59E,30,60Lclear,4,6,1!清除用于創(chuàng)建地層彈簧單元的外層梁?jiǎn)卧狶DELE,4,6,1,1!刪除外層直線Finish!返回MainMenu主菜單5.1.1加載與求解/SOL!進(jìn)入求解器d,31,ux,0,0,60,1,uy,!在“Ux”和“Uy”兩個(gè)方向的施加約束ACEL,0
6、,10,0,!在Y方向施加重力加速度F,2,Fx,0!在節(jié)點(diǎn)上施加X(jué)方向集中力F,13,Fx,43554.43356F,14,Fx,86574.64508F,15,Fx,128464.6048F,16,Fx,168285.8813F,17,Fx,204799.5937F,18,Fx,236448.4444F,19,Fx,261396.9365F,20,Fx,277795.0781F,21,Fx,283894.0611F,12,Fx,247397.3915F,30,Fx,190308.0663F,29,Fx,149683.6899F,28,Fx,103226.8339F,27,Fx,
7、52665.0399F,26,Fx,0F,25,Fx,-52665.0399F,24,Fx,-103226.8339F,23,Fx,-149683.6899F,22,Fx,-190308.0663F,1,Fx,-247397.3915F,3,Fx,-283894.0611F,4,Fx,-277795.0781F,5,Fx,-261396.9365F,6,Fx,-236448.4444F,7,Fx,-204799.5937F,8,Fx,-168285.8813F,9,F