How to verify that loads are correctly applied to your Simcenter 3D model

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Quick Overview

This tips and Tricks shows how to use the Mechanical Load Summary command in Simcenter 3D to compute the total forces and moments for the active structural analysis solutions or sub cases. This command allows you to verify that you have correctly applied loads to your model before running the simulation.

 

Core content

You can use Mechanical Load Summary to verify both geometry-based and FE-based loads. However, Mechanical Load Summary ignores any geometry-based loads that are not associated to an existing mesh. For time or frequency-dependent loads, the Mechanical Load Summary command allows you to control the time or frequency at which Simcenter 3D computes the total forces and moments.

 

Steps

In the simulation navigator, select the active solution or subcase, right-click and select Mechanical Load Summary.

Figure 1: Execute Mechanical Load Summary command for the solution or subcase

 

In the Mechanical Load Summary dialog and under the Solution/Loads group, NX automatically selects all the loads in the active solution or subcase. In case you want to exclude any individual load from the calculation simply use the Select Loads to deselect any individual load.

Figure 2: Mechanical Load Summary dialog

 

In the Reference CSYS group, you can specify a reference coordinate system (Reference CSYS). Simcenter 3D reports the total forces and moments with respect to this reference coordinate system. Simcenter 3D also calculates the total moments for the solution or subcase about the origin of that reference coordinate system. You have the option to create a new coordinate system (Cartesian, Cylindrical, and Spherical) or to select an existing coordinate system from the simulation navigator.

 

The Time Option group is available for time-dependent solutions, such as NX Nastran SOL 109, 112, and 601. This option lets you specify the time at which to evaluate the total loads. If you specify a time at which no loads are applied, Simcenter 3D reports the total loads as zero.

 

The Frequency Option group is available for frequency-dependent solutions, such as NX Nastran SOL 108 and 111. This option lets you specify the frequency at which to evaluate the total loads. If you specify a frequency at which no loads are applied, Simcenter 3D reports the total loads as zero.

Figure 3: Time and frequency options

 

The Output Options group lets you select the units in which to display the data.

Figure 4: Select the unit in which to display the data

 

When you have defined your desired settings, click on OK to generate the mechanical load summary report.

Figure 5: Sample of generated mechanical load summary

 

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