×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

MSC Marc: Table Formulas

MSC Marc: Table Formulas

MSC Marc: Table Formulas

(OP)
Hello there,

I am relatively new to MSC Marc / Mentat and I'm having some difficulties applying a load using a spatial distribution.
Since the load is dependent on the nodes' x0 and y0 coordinates, I attempted to apply the load using a table, containing 2 independent variables (x0, and y0).

Unfortunately, the analytical description of the load results in a formula far too large for the formula editor, resulting in 'ERROR: Formula too long!'
To circumvent this, I split the formula up in seperate parts, defining each part as a paramter (for example: P1, P2 and P3(P1,P2)) and combining them in the formula entry (P3*dsin(15)). This results in a correct evaluation when creating the table's formula.

However, after creating the loadcase and running the corresponding job, I get the following errors at these combined formulas:
*** - error - expression cannot be evaluated

I'm not sure whether the program just doesn't transmit the defined parameters to the job, and therefore being unable to solve the formula P3*dsin(15) since P3 is unknown.
Or perhaps that the combined formula is still too long to evaluate. Either way the formula is too long and I'm not sure how to go about this (tried using table multiplication but unfortunately this is not possible with the current formula).
Anyone got any ideas on how I may be able to enter longer formulas for the tables, or how to use the correct parameters in the solver if this is the issue?

Thanks for any pointers!

Gr,
Lt

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources