Fine thread CAE parametric modeling and pre-tightening simulation method

• Main Authors: LIU YAN, SHEN CHAO, LIU SICHENG, XU YANWEI, LI WENSHENG, LIN ZHONGLIANG, CHENG QUANSHI
• Format: Patent
• Language: Chinese; English
• Published: 23.05.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a fine thread CAE parametric modeling and pre-tightening simulation method. The method comprises the following steps: setting software and a working directory; geometric feature parameters are input, and an mac file is generated; calling an MAPDL.exe file and an mac file to carry out modeling; generating a single pitch circular ring and dividing grids; the units are separated from geometric features; the mobile node generates thread features; copying the single-pitch unit to generate a complete thread; complementing other features to form a complete bolt; exporting a finite element model in a cdb format; and the torque and the rotation angle are respectively applied to the bolt head for calculation. The method has the beneficial effects that parametric modeling of the thread fine CAE model can be realized only by using a set of ANSYS software, so that the software purchase cost is greatly saved; the principle of the modeling method is not limited to ansys, and meanwhile, the modeling me