Function
- Define the pressure load cases and the corresponding pressure loads.
- The pressure loads defined here are applied to the structure by the Assign Pressure Loads command.
- Although the pressure loads such as dead, live, roof and snow loads have different values, they share the common loading areas. In order to avoid laborious repetitions and expedite the loading data entry process, Gen NX distinguishes the commands for the definition of pressure loads and the application of pressure loads.
Call
From the Main Menu select [Load] tab > [Type : Static Loads] > [Pressure Load] group > [Pressure Loads] > [Define Pressure Load Type]
Input
Pressure Load Type Name & Description
Name : Pressure load name
The name is used to access the Pressure Load Type when entering the pressure load to be applied to the structure by the Assign Pressure Loads command.
Typically, the names are designated by the architectural uses (office, rooftop, etc.).
Description : Enter a short description for the load type.
Pressure Load & Load Case
Assign the load cases and enter the values of the relevant pressure loads.
Element Type : Select the type of elements to be subjected to pressure loads. Refer to the figure displayed to assign the loading direction and the loaded side(s).
Plate/Plane Stress (Face) : Out-of-plain plate & plane element
Plate/Plane Stress (Edge) : In-plain plate & plane element
Solid (Face) : Solid element
Plane Strain (Edge) : Plane strain element
Axisymmetric (Edge) : Axisymmetric element
Wall (Edge) : Wall Element
Load Case : Select a load case.
Projection : Define if the pressure is to be applied perpendicular to the element or to be projected in the direction of gravity.
Yes : The pressure is to be projected in the direction of gravity.
No : The pressure is applied perpendicular to the element.
Fig. [Example] Calculation of reaction]
Load : Select if the loads are uniformly distributed or linearly varying.
Uniform : when the pressure loads are uniformly distributed
Linear : when the pressure loads vary linearly
P1, P2, P3, P4 : Enter the pressure load values per unit area. Pressure load values at faces or edges.
Define Load Cases : Enter additional load cases and modify or delete existing load cases.
To define or add new pressure load cases
Enter the fields above and click the Add Button.
To modify previously defined floor load types
Select the relevant load type from the list at the bottom of the dialog box, modify the entry fields at the top and click the Modify Button.
To delete previously defined floor load types
Select the relevant load type from the list at the bottom of the dialog box and click the Delete Button.