lsdyna的實體單元彎矩和截面力的提取
介紹兩種方法:
1)用*DATABASE_CROSS_SECTION_PLANE+*DADABASE_SECFORC 定義,但是必需在求解之前就定義好, 求解完成后在工作路徑下生成SECFORC文本文件可以直接用origin /exel等軟件讀取 也可以在lspp的ASCII中顯示
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.
這種方法足以解決截面輸出的所有問題,但是每次都要在k文件中定義截面和截面輸出,如果覺得太繁瑣,可以試試第二種方法!
第二種方法,忘了定義,*DATABASE_CROSS_SECTION_PLANE +*DADABASE_SECFORC也沒事,還有一種lspp直接提取方法,這種方法藏得很深,用step by step的方式講解! 見付費內容
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