Assembly Physical Properties

Physical Properties (Assembly)

This command controls the assembly physical properties.

Creation stages / Use:

Click the icon or select the Tools > Physical properties... command from the drop-down menu.

Check the different physical properties to be managed. These properties can also be applied to local parts and to local assemblies.

- Mass. Option to manage the assembly's mass.
- Center of mass. Option of managing the assembly's center of density.
- Moments of inertia. Option of managing the assembly's moments of inertia.
- Surface area. Option to manage the assembly's surface.
- Volume. Option to manage the assembly's volume.
- Enclosing projected area. Option to manage the assembly's enclosing projected area. Openings are not taken into account.
- Projected area. Option to manage the assembly's projected area. Openings are taken into account.

The mass, the center of mass and the moments of inertia must be managed for the dynamic simulations.
Calculating the physical properties of an assembly does not account for welds and local modifications in the assembly.
Parts and sub-assemblies without mass are ignored in the calculation of the total mass, without a warning message .It is the same for other calculations (surfaces, volumes, ...)
To display the physical properties in the entity tree, switch to analysis mode.
When activating the center of mass or inertia calculation in an assembly, they are materialized in the Points and Frames folders of the entities tree. These values are relative to the assembly in the position defined by the detailed configuration.

The checked physical properties are visible, but non-modifiable in the Parameters folder in the entities tree.

Available Options:

Strict Mode: When a part has no material or when its material is not correctly defined, the calculation of the mass of the assembly mass gives an incorrect result. In order to avoid errors, this option, when checked, does not allow you to calculate the mass of the assembly if one of the parts has no mass.