🎉Community Raffle - Win $25

An exclusive raffle opportunity for active members like you! Complete your profile, answer questions and get your first accepted badge to enter the raffle.
Join and Win

Equation Load

User: "Casper Kruger"
Casper Kruger
Altair Community Member
Updated by Casper Kruger

Hi, 

 

I am trying to add an equation load on the face of a drum. I created the cylindrical UCS with r along the axis and added the pressure on the face using an equation. But it keep producing a zero pressure. 

The below series of images shows the equation I would like to apply and what I am getting. 

Am I specifying the axis correctly in the HW equation? If so, do I need to do a rads to deg conversion anywhere? I also attached the .FEM file. 

Thank you in advance. 

 

image

image

image

Find more posts tagged with

English
HyperMesh
v2021.2
Sort by:
1 - 2 of 21
    User: "paulel_22250"
    paulel_22250
    New Altair Community Member
    Updated by paulel_22250

    From HyperMesh Help:

    Equations allow you to create force, moment, pressure, temperature or flux loads on your model where the magnitude of the load is a function of the coordinates of the entity to which it is applied. An example of such a load might be an applied temperature whose intensity dissipates as a function of distance from the application point, or a pressure on a container walls due to the level of a fluid inside.

    Functions must be of the form magnitude= f(x,y,z). The only variables allowed are x, y and z, (lower case) which are substituted with the coordinate values of the entity to which the load is applied. In the case of grid point loads (force, moment or temperature) the grid point coordinates are used. For elemental loads (pressure or flux) the element centroid coordinates are used. In the event that a cylindrical or spherical coordinate system is used, x, y and z are still used to reference the corresponding direction. Standard mathematical operators and functions can be used; however, any functions requiring external data will not be valid.
     
    Note: If your equation contains a syntax error, no warning message will be displayed, but any loads created will have a zero magnitude.
     
     
    User: "paulel_22250"
    paulel_22250
    New Altair Community Member
    Accepted Answer
    Updated by paulel_22250

    Also from HyperMesh Help:

    image

    image

    image

Quick Links