We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.

Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Mass matrix with values equal to zero › Reply To: Mass matrix with values equal to zero

March 19, 2024 at 4:33 pm
Aurojyoti Prusty
Ansys Employee

Hi,

Generally we get some values zero, when the dofs in that position does not have any effect on the other dof. For example, in this case, (2,1) is 0. It means there is no effect of dof=2 on dof=1. I think you have extracted this from the global mass matrix which is coming from number of beam elements. Do you mind to share, how did you get the numerical values of mass matrix ? How does your model look like?

Thanks

Aurojyoti.