Defining Pressure That Changes With Time In ANSYS Mechanical(Illustrated Expression)

In this article we will show how to define a presure to bodies, surfaces, faces of a feature in ANSYS Mechanical that changes with time. Defining pressure according to time as tabular basis is very easy in ANSYS Mechanical. Also Pressure is a boundry condition in finite element analysis(FEA) which makes the correctness of  that value is very important for healty analysis.


How To Define A Pressure That Changes With Time In ANSYS Mechanical?

Select pressure from the list above in ANSYS Mechanical.

First of all you need to open the ANSYS Mechanical interface to assign pressure values that change with time 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 red arrow above then click on Pressure as shown by red box in ANSYS Mechanical.

Select faces of a feature to assign pressure that changes with time in ANSYS Mechanical.

To define a pressure, you can only select faces or surfaces of the parts in ANSYS Mechanical as shown by red arrow. Because you need a geometric area to define pressure that changes with time in physical mean. Geometry selection for pressure that changes with time, 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.

Select your faces then click apply.

After the selection of faces or surfaces of parts in ANSYS Mechanical, clck on Apply button in Geometry tab as shown by blue arrow above.

Click on Tabular method in Pressure.

Select one of the defining methods from Define By tab around; Components, Vector or Normal To. In this example, we selected Components. After that, click on little pop-up menu as shown by red arrow above, then click on Tabular(Time) option for it.

Select Tabular Data for each components.

Do the same thing that shown former step for each X, Y and Z components as shown by red box above in ANSYS Mechanical.

Define the whole pressure values in ANSYS Mechanical.

After opening the Tabular Data option for whole coordinates, you can add time rows by entering a time to the last row as shown by red arrow, then press Enter from your keyboard to define pressure values for it. And you can enter pressure values for every coordinates in every time periods as shown in red box above.

Definition of various pressure values in changing time in ANSYS Mechanical is easy like that. You can build real physical conditions that changing with time in ANSYS Mechanical with this technique.

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