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开式压力机的强度计算一般只算立柱的拉应力。在刚度计算时,立柱假设为刚架结构,算出角变形。为了全面了解床身各点的应力及变形,因而采用有限元进行计算;并与动载电测应力进行比较,可得各载荷下的动荷系数。一、床身有限元计算程序在该床身的有限元计算中所采用的程序是把八节点曲边形等参元和六节点三角元编在一起,可组合使用。当平面构件上设置有加强筋时,程序中还提供了拉(压)杆元。本程序适宜于计算其有曲线边界物体的平面问题,以及结构中各种形状开孔区的应力集中问题。对于有不同材料、不同厚度,或设有加强筋的构件;
Open press strength calculation generally only column tensile stress. In the stiffness calculation, the column is assumed to be a rigid frame structure and the angular deformation is calculated. In order to fully understand the stress and deformation of each point of the bed, the finite element method is used to calculate the dynamic load coefficient. First, the bed finite element calculation program In the bed finite element calculation program used is the eight-node curved isoparametric elements and six-node triangular elements together, can be used in combination. When the stiffener is provided on the planar member, a pull rod is also provided in the program. The program is suitable for calculating the plane of its curved boundary objects, as well as the structure of various shapes of open area stress concentration problems. For members with different materials, different thicknesses or with stiffeners;