ARMD™ 5.7
Module Description of TORSION™ (Torsional Vibration)
The torsional vibration module use a finite element based formulation for
performing damped and undamped torsional natural frequencies, mode shapes,
steady-state and time-transient response of mechanical drive trains. TORSION
consists of three sub-modules TORNAT, TORHRM and TORRSP
integrated by TORSION's module messenger. The messenger controls the sub-modules
to provide a complete torsional vibration analysis environment. TORSION
accepts models generated with ROTLAT and has the same basic modeling
capabilities as well as the modeling of multi-shaft/multi-branch systems,
coupling stiffness and damping, gear tooth flexibility, various types of
external excitation, synchronous motor start-up torque, compressor torque, etc.
TORSION’s
analytical results include:
1.
Natural Frequency
- Damped and undamped
- Growth factors and damping ratios
- Mode shapes of vibration
- Critical speed map
(Campbell Diagram)
2. Steady-State Response
- Vibratory amplitudes
(displacement, velocity and acceleration)
- Dynamic torques
- Dynamic stresses
- Dynamic heat dissipation
3. Time-Transient Response
- Dynamic shaft torque time history
- Dynamic stresses
- Fatigue life
|
Special information are available as
downloads:
|
top of this page | previous
page
| print page
|
Hansestr. 2