![]() ![]() ![]() It’s important to be able to see X, Y and Z axials of the UCS, as the UCS doesn’t always coincide with the UCS positioned at the bottom left of your Solidworks screen. Arrange the assembly so you can see both the moment of inertia and the center of the assembly. In the example below you will see an unbalanced assembly. If the assembly is balanced, the UCS will be placed to the center of the part. When the new screen is ready click onto “Options” and change the unit of measurement for mass to “Kilograms” and length to “Meters”Ħ – Note that Soliworks has now added to the centre of mass of the object a pink-ish UCS. The positioning must be of “concentric” typeĥ – Deselect all objects, then go to menu “Evaluate -> Properties of Mass”. Position should be defined as “coincident”Ĥ – Make sure you also align the origin of Solidworks with the center of the spinning disc of your assembly using the Clips icon. All items must have their measurements and total mass well definedĢ – Allow the assembly to float by right-clicking over itģ – Align the moving disc to one of the axials using the Clips icon. Solidworks 1 – Create a new assembly including only the items to be moved by the indexed table (discs, devices, screws, parts etc). Please check with your CAD manufacturer for the calculation procedure. Other CADs are quite similar in the way of obtaining the calculation. We developed the step-by-step below to facilitate the identification of the moment of inertia of your set that will be moved by the indexing table, using the CAD tool Solidworks and Inventor. There are several ways of knowing the moment of inertia:Ī) manually, through mathematical calculationsĬ) using a CAD (Solidworks, Inventor, Catia, NX, etc …) The calculation of the moment of inertia of your set is one of the main data that we need to know in order to identify which indexing table best suits your need, without running the risk of oversizing it, bringing high costs to your project, or undersizing it, bringing less resistance than your need. The further away from the turning center the masses are, the greater the moment of inertia. Generally the unit is Kg.m2 (kilogram-metre square). Calculation of the moment of inertia in Solidworks or Inventor In mechanics, the moment of inertia, or moment of mass inertia, expresses the degree of difficulty in changing the state of movement of a rotating body. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |