Bulk Data Entry Used to select the frequency response analysis
formulation type for rotor dynamics analysis.
| Parameter |
Values |
Description |
| GYROAVG |
<0,
-1> |
- 0 (Default)
- The frequency-dependent rotor dynamics terms are
calculated for each frequency. A frequency-dependent
looping option is activated, however, the run time is
higher compared to PARAM,
GYROAVG, -1 as
the calculation process has to be repeated for each
frequency in the specified range.
- -1
- The frequency-dependent looping does not occur and an
average frequency method is used to calculate the rotor
dynamic terms. The run time is lower compared to
PARAM,
GYROAVG, 0 as this
option avoids intensive calculations for each frequency.
PARAM, WR3 and PARAM,
WR4 must be specified for this formulation to
include rotor damping. Alternatively,
WR3 and WR4
may be specified for each rotor in its corresponding
RSPINR card.
Refer to Rotor Dynamics in the User
Guide for more details.
|