《ANSYS 单元集分析》.ppt

1、 Structural Line 2.1 BEAM3—2D Elastic Beam BEAM3输入参数汇总： 实常数： AREA – 横截面面积 IZZ – 截面惯性矩 HEIGHT – 截面高 SHEARZ – 剪切变形系数 ISTRN – 初始应变 ADDMAS – 每单位长度附加质量 材料属性：EX, ALPX, DENS, GXY, DAMP 表面荷载： 压力-（括号内为压力正值作用方向） face 1 (I-J) (-Y法线方向) face 2 (I-J) (+X切线方向) face 3 (I) (+X 轴向) face 4 (J) (-X 轴向) （如输入的压力为负值表示与几何模型图中方向反向作用) 体荷载： 温度作用?--?T1, T2, T3, T4 2.2 BEAM54——2-D Elastic Tapered Unsymmetric Beam 2.3 BEAM4——3-D Elastic Beam BEAM4 BEAM4 is a uniaxial element with tension, compression, torsion, and bending capabilities. The element has six degrees of freedom at each node: translations in the nodal x, y, and z directions and rotations about the nodal x, y, and z axes. Stress stiffening and large deflection capabilities are included. A consistent tangent stiffness matrix option is available for use in large deflection (finite rotation) analyses. 2.4 BEAM24—3-D Thin-walled Beam BEAM24 is a uniaxial element of arbitrary cross-section (open or closed) with tension-compression, bending and St. Venant torsional capabilities. Any open cross-section or single-celled closed section can be used. The element has six degrees of freedom at each node: translations in the nodal x, y, and z directions and rotations about the x, y, and z axes. 2.5 BEAM188—3-D Linear Finite Strain Beam BEAM188 is suitable for analyzing slender to moderately stubby/thick beam structures. This element is based on Timoshenko beam theory. Shear deformation effects are included. BEAM188单元基于Timoshenko梁理论，考虑了剪切变形效应，适用广泛——细长梁到短粗梁。 BEAM188 is a linear (2-node) or a quadratic beam element in 3-D. BEAM188 has six or seven degrees of freedom at each node. the number of degrees of freedom depending on the value of KEYOPT(1). When KEYOPT(1) = 0 (the default), six degrees of freedom occur at each node. These include translations in the x, y, and z directions and rotations about the x, y, and z directions. When KEYOPT(1) = 1, a seventh degree of freedom (warping magnitude) is also con