9.8.3. Flex Thermal Loads

Flex Thermal Loads generates temperature differences on FFlex bodies. This can be supported to elements with Elastic Isotropic material.

The Node Set:

  • Should be defined before creating Flex Thermal Loads.

  • Must belong to a FFlex body.

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Figure 9.125 Flex Thermal Loads dialog box

  • Type: There are 2 types to input temperature Expression or Import Node Temperature.

  • Node Set: Defines a node set.

  • Expression [ \(^{\circ} C\) ]

    • Temperature: Defines an expression to the temperature by clicking EL.

  • Temperature Load File (*.rtl): This group is activated when selecting Import Node Temperature.

    • Reference Marker: Specifies the Reference Marker to apply the thermal load. The default Reference Marker becomes the Inertia Marker of the ground.

    • RTL File Name: Enters the RTL file name and its path. To check more information about data type of RTL file, click here.

    • Preview Time: Preview a contour of imported temperature field at specified preview time.

Contour Preview

In the case contour preview, user can check how nodal temperature data is applied to selected node set.

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Figure 9.126 PreCheck Contour dialog box

Band Option, Min/Max Option and style option is the same functionalities to the FFlex contour option.

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Figure 9.127 Example of contour preview

Concept of the Thermal Coefficient

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  • Thermal coefficient [ \(1/^{\circ} C\) ] : The ratio between the original length and stretched length by the temperature. It is the material property.

  • Thermal Reference Temp [ \(^{\circ} C\) ]: The reference temperature is user-defined value. The difference between current temperature and reference temperature occurs the thermal deformation.