Dynamic Event
Define a Modal Transient (MTRAN) loadcase.
Dynamic Event Options
Description of Dynamic loadcase options.
- Load Curve
-
- Sine Sweep
- Sinusoidal or Sine sweep is a sine function that gradually changes frequency over time.
- From File
- Use this option to import a file containing the load time
history. SnRD supports loading
either one, two or three directions.
Refer From File options.
- From PSD
- PSD- Power Spectral Density
- Undo Dynamic Event ()
- Reverts the recently created dynamic event.
- Curve Editor ()
- Launches the Curve Editor after creation of loadcase which allows for preview of the imported load curve(s).
- Modes
- (EIGRL/EIGRA) – Defines data
for Eigenvalue analysis
- Method
- Select Eigenvalue method, Lancos or Amses.
- Frequency Range
- Define which frequency range to consider in evaluation
- No of Modes to Extract
-
Set the number of modes to extract. If set to blank all modes in Frequency range are extracted.
- Damping
- (TABDMP1) – Defines damping parameters
- Damping
- Define damping factor as constant over all frequencies or through a table
- Method
- Set damping method
- Time Step
- (TSTEP) – Defines Time Step
Parameters
- Auto Time Step
- Automatically extracts Time Step based on load curve
- Auto No of Time Steps
- Automatically extracts number of time steps based on load curve
- Output frequency
- Defines the output frequency of the results at the respective time steps.
- Output
-
- Displacement
- Output displacement on all E-lines
- Velocity
- Output Velocity on all E-lines
CSV
and
TXT
and columns in file should be organized depending on
your selection as shown below:
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