【正文】
要提出改進的方案并進行驗證。 對計算結(jié)果進行分析,有可能需要調(diào)整計算方案,也是難點之一,既需要經(jīng)驗也需要知識。一般不推薦一個焊點只采用一個 RBE2單元(只有兩個節(jié)點連接)的方式。此種辦法比較簡單,而且焊接順序可以結(jié)合車間的焊接順序進行,比較容易理解,建議初學者使用。 最小四邊形內(nèi)角:大于 40度216。Create Final Mesh216。 Select free edge216。 Set tolerance to .1216。Pseudo surfacesInitial MeshCompany ConfidentialUser Scenario 1216。 Reduce cost216。便于以后添加材料性質(zhì)卡和辨別零件??梢詫?N個面合并成一個面(此種方法只限對模型質(zhì)量要求不高的情況),但關(guān)鍵的特征線應(yīng)該保留,如拐角、和孔等。 Drastically reduce analysis modeling time216。Verify : Surface : Boundary216。Pseudo surface cleanup216。 2 gaps needs to be manually stitchedMake CongruentCompany ConfidentialUser Scenario 1216。Merge pseudo faces to eliminate skewed or sliver surfaces216。216。 Company ConfidentialIRREGULARITY CHECKSn General mesh/element checksu Boundary or “Crack” detectionu Elements Duplicationu Normalsu Nodal connectivityu Jacobiann Element specific distortion checksu Deviation form basic shaped elements, . tapern Curvature and singularity tests for quadratic elementsn Colorcoding based on node or element ID numbersCompany ConfidentialVERIFY ELEMENT BOUNDARYn Plots the boundary as free edges, or optionally free facesn Free edge/face of an element is the edge/face of the element not m