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{include: ANSYS WB - Modal Analysis of a Wing - Panel}
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h1. Pre-Analysis & Start-Up

h3. Open ANSYS Workbench

Open ANSYS Workbench by going to Start > ANSYS > Workbench. This will open the start up screen seen as seen below

!OpenANSYS.png!

To begin, we need to tell ANSYS what kind of simulation we are doing. If you look to the left of the start up window, you will see the Toolbox Window. Take a look through the different selections. We are doing a modal analysis simulation. Load the {color:#990099}{*}{_}Modal(ANSYS)_{*}{color} box by dragging and dropping it into the Project Schematic.

!Start Up Screen 2.png!

Name the project {{Modal Analysis of an Airfoil}}.

h3. Engineering Properties

Now we need to specify what type of material we are working with. Double click {color:#990099}{*}{_}Engineering Data{_}{*}{color} and it will take you to the Engineering Data Menus.

!Engineering Data.png!

If you look under the _Outline of Schematic A2: Engineering Data_ Window, you will see that the default material is Structural Steel. The Problem Specification states we will be using Aluminum 6061-T6. To add a new material, click in an empty box labeled {color:#990099}{*}{_}Click here to add a new material{_}{*}{color} and give it a name. Our Material is {{Al 6061-T6}}. On the left hand side of the screen in the _Toolbox_ window, expand {color:#990099}{*}{_}Linear Elastic{_}{*}{color} and double click {color:#990099}{*}{_}Isotropic Elasticity{_}{*}{color} to specify E and {latex}$\nu${latex}
In the _Properties of: Al 6061-T6_ window, Set the Elastic Modulus units to {color:#990099}{*}{_}psi{_}{*}{color}, set the magnitude as {{1E7}}, and set the Poisson Ratio to {{0.33}}.
We will need to define the density as well.  Expand {color:#990099}{*}{_}Physical Properties{_}{*}{color} {color:#000000}and double click{color} {color:#990099}{*}{_}density._{*}{color} {color:#000000}In the{color} {color:#000000}{_}Properties of: Al 6061-T6{_}{color} {color:#000000}window, a density bar will have appeared. Define it as being 2700 kg/m^3{color}



{info:title = Units}
There is no need to worry about using one unit system in ANSYS. If you input the geometry in metric units and the material properties in English units, ANSYS will still calculate the correct results as long as you specify what units you are using.  However, it is easier to correct for mistakes if you stay in one unit system.
{info}

Now that the Material has been specified, we are ready to load the geometry in ANSYS.

Continue*[Go to [Step 2 -: Geometry|ANSYS WB - Modal Analysis of a Wing - Geometry]*

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