Reply To: Static Structural Analysis, Reaction forces in different coordinate system

[rezvanrakhshan]

Hi Ashish,
thank you for the analysis. However, my concern is not about the reaction forces changing in the x, y, and z directions across different coordinate systems. The issue is that the magnitude of the total force (sqrt(fx^2 + fy^2+fz^2​​) in the global coordinate system is different from that in the local coordinate system.

Specifically:

• In the global coordinate system, the total force magnitude is 4312.1 N.
• In the local coordinate system, the total force magnitude is 1651.5 N.

As you know, the total force magnitude in space should remain constant, regardless of the coordinate system, because different coordinate systems only affect how the force is represented (its components), not its actual magnitude or direction. This discrepancy suggests that there might be an error in the calculations or transformations between coordinate systems.

Could you please investigate this further? Let me know if you need additional details from my side.