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DavidCaeroengineer
Guest
Howdy all,
When measuring the inertia values of a part in CATIA, I am getting negative values for Iyz and other off-diagonal terms in the inertia matrix. I've attached a screenshot.
I am putting this part in an assembly, which ends up with a negative Ixz value.
Why are these values negative? I am using these values in a separate simulation, so I am expecting positive values for Ixy, Ixz, and Iyz.
The principle axis values are positive; however, I am interested in the inertias about a separate axis, not the principle axis for my simulation.
Please let me know how I can fix this problem. Thanks a lot.
David
View attachment 1931
When measuring the inertia values of a part in CATIA, I am getting negative values for Iyz and other off-diagonal terms in the inertia matrix. I've attached a screenshot.
I am putting this part in an assembly, which ends up with a negative Ixz value.
Why are these values negative? I am using these values in a separate simulation, so I am expecting positive values for Ixy, Ixz, and Iyz.
The principle axis values are positive; however, I am interested in the inertias about a separate axis, not the principle axis for my simulation.
Please let me know how I can fix this problem. Thanks a lot.
David
View attachment 1931
