In this article of Mechanical Base, we will show you how to assign or define a pressure to a feature of a part in ANSYS® Mechanical. As you know from engineering pressure is a very major variable in engineering problems. Definition of pressure values in engineering problems is very important. In finite element analysis, the pressure variable is also very important because a pressure value on a part that will be analyzed is a boundary condition. As you know from the finite element analysis, the correct definitions of boundary conditions are very important to obtain very realistic and correct analyses.
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So you will learn how to define pressure to a part various features such as faces in ANSYS® Mechanical.
First of all, you need to open the ANSYS® Mechanical interface to assign pressure values to parts. Right-click on the analysis system in ANSYS® Mechanical interface(Static Structural in this example). Hover your Mouse on the Insert section as shown by the green arrow above then click on Pressure as shown by the green box in ANSYS® Mechanical.
To define a pressure, you can only select faces or surfaces of the parts in ANSYS® Mechanical as shown by the red arrow. Because you need a geometric area to define pressure in the physical mean. Geometry selection for pressure, you need to activate geometry tab as shown by red box above then you can select a face or surface of a part in ANSYS® Mechanical.
After the selection of faces or surfaces of parts in ANSYS® Mechanical, click on the Apply button in the Geometry tab as shown by the blue arrow above.
As you can see above, you can assign your pressure as components, vector, or normal to ANSYS® Mechanical. If you select components, you need to enter the X, Y, and Z values of your pressure. If you select vectors, you enter a pressure value then you select a vector to define the direction of the pressure. Normal to directly apply your pressure value to the surface of the parts selected in ANSYS® Mechanical.
We selected the components method to define our pressure. We entered a 500 Pa value of pressure to each X, Y and Z coordinates as shown by the blue box above. You can see the result of pressure as shown by the blue arrow.
Do not forget to leave your comments and questions below about inserting pressure on parts in ANSYS® R18.
The application of pressure to a part is very basic like that in ANSYS® Mechanical.
NOTE: All the screenshots and images are used in educative and informative purposes. Images used courtesy of ANSYS, Inc.