What are the default units used in Ansys APDL? Note that the SI system is “newer” than the MKS system, with some differences in electronic units. Table 146: *GET General Items, Entity = ACTIVE The *GET command supports identification of the /UNITS setting employed: UNITS, Label, LENFACT, MASSFACT, TIMEFACT, TEMPFACT, TOFFSET, CHARGEFACT, FORCEFACT, HEATFACTĪnnotates the database with the system of units used. Note that /UNITS is merely a recording device. Users are advised to check the Commands Manual for the /UNITS command. Workbench Mechanical has several systems of units for a user to choose. The check could be included at the beginning of any APDL Commands Object in Workbench that assumes the UNITS employed in a SOLVE. This article illustrates how to use APDL commands to detect the UNITS that are active when SOLVE is requested for an environment in Workbench Mechanical.

Industrial Equipment and Rotating MachineryĪnsys Workbench Mechanical supports the presence of APDL commands in the Outline so that user-programmed commands will act on a model at the Body, Connection, Solver or Postprocessing stage of an Ansys job running from the ds.dat file generated by the Mechanical SOLVE command.

Torsional Vibration Measurements Testing.

Fluid Flow & Thermal Applications (CFD).

Electronic and Electrical Applications (EM).

The text file was created by writing out the input file once using the agonizingly slow Workbench and finding this section for the text file. ! See Solving Units in the help system for more information.

! NOTE: Any data that requires units (such as mass) is assumed to be in the consistent solver unit system. ! Active UNIT system in Workbench when this object was created: Metric (mm, kg, N, s, mV, mA) ! These commands may supersede command settings set by Workbench. ! Commands inserted into this file will be executed just prior to the ANSYS SOLVE command. The load now just has three numbers, 1, 1, 1 for xyz accelerations. Instead, I put the 126,000 numbers in a text file, and used a command snippet to read the text file.

Workbench almost chokes on this many numbers and takes forever to submit to the solver. The time history was very large, 42,000 time steps with three values per step (xyz), which is 126,000 numbers. I had a Transient Structural model that had tabular input for the Acceleration load which varied over time. Below is a description of what he created for me. I got help from a talented support engineer at SimuTech Group.

Ansys mechanical apdl command reference