...
How
...
do
...
I
...
calculate
...
the
...
fixed-mass
...
participation
...
ratio
...
of
...
the
...
model?
...
Answer:
...
The
...
fixed-mass
...
participation
...
ratio
...
may
...
be
...
calculated
...
as
...
follows:
...
- Export the Joint Masses table to Excel by selecting Analysis Results > Joint Output > Joint Masses.
- Sum all joint masses to find the total mass.
- Square the Participation Factor table and divide this value by total mass.