例句與造句

1. From the feature of the force and deformation of the tpih , 5 different elements are used to mesh the different zones of the tube , which are structural beam 3d elastic 4 , structural pipe plastic straight 20 , structural pipe elastic elbow 18 , structural shell elastic 4 node 63 and contact 3d pt - to - surf 49 ; the contact problem is assumed to be flexible - to - flexible ; the temperature field is assumed to be body load . a mechanical model corresponding to reality has been established for numerical simulation . based on the above , the 3 - d fem numerical simulation of tpih has been carried out by using the ansys program
   針對(duì)加熱彎管過程的受力和變形特點(diǎn)，采用三維梁?jiǎn)卧?、三維塑性直管單元、三維彈性曲管單元、三維殼單元與三維點(diǎn)對(duì)面接觸單元等5種不同的單元分別對(duì)管毛坯不同區(qū)域進(jìn)行劃分，并對(duì)接觸單元采用柔體-柔體的處理方法，將溫度場(chǎng)作為體載荷處理，建立了符合實(shí)際的加熱彎管問題數(shù)值模擬力學(xué)模型：在此基礎(chǔ)上，應(yīng)用商用軟件ansys對(duì)加熱彎管過程進(jìn)行三維有限元模擬與研究，獲得了成形時(shí)推力、彎矩、支撐力大小及其變化趨勢(shì)。
2. It's difficult to find structural pipe in a sentence. 用structural pipe造句挺難的