General Mechanical

General Mechanical

Problems with reading loads from a file. Transient analysis.

    • saraahf1
      Subscriber

      I would like to apply different forces that are saved in an external file to a specified nodes of my model.


      I have 59 nodes that I want to apply X load for every substep (10001 substeps in total, that means that my transient analysis is from 0 to 100s and the step is 0,01s). The .txt file with the loads is constructed with 59 rows (for each node) and 10001 columns (for each time load). The code that I've implemented is the following one:


      *do,i,1,59 !node by node


      *do,tm,0,100,0.01 !step by step


      *DIM,force_x,table,59,10001,,node,step,,


      *TREAD,force_x,xload,txt,, !read x load table table outres,nsol,all !controls the solution data


      time,tm !sets the time for a load step


      f,i,fx,%force_x%,,, !apply force to the node


      kbc,0 !ramped load step


      solve


      *enddo


      *enddo


      Having this code I don't really know if the program is reading the correct line of the .txt file that corresponds to each node and each load.


      Also I have this error:


      - Present time 0 is less than or equal to the previous time in a transient analysis.

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