介绍两种方法:
1)用*DATABASE_CROSS_SECTION_PLANE+*DADABASE_SECFORC 定义,但是必需在求解之前就定义好, 求解完成后在工作路径下生成SECFORC文本文件可以直接用origin /exel等软件读取 也可以在lspp的ASCII中显示
When the PLANE option is used to define a cross-section (*DATABASE_CROSS_SECTION_PLANE), LS-DYNA chooses the nodes and elements making up the cross-section. The nodes and elements chosen for that cross-section are reported in the D3HSP file under the heading "interface definition".*DADABASE_SECFORC determines the output interval for the cross-section forces and moments. The forces and moments are output in the global coordinate system, or, optionally, in an updated local coordinate system attached to a rigid body or accelerometer.
这种方法足以解决截面输出的所有问题,但是每次都要在k文件中定义截面和截面输出,如果觉得太繁琐,可以试试第二种方法!
第二种方法,忘了定义,*DATABASE_CROSS_SECTION_PLANE +*DADABASE_SECFORC也没事,还有一种lspp直接提取方法,这种方法藏得很深,用step by step的方式讲解! 见付费内容