To specify a nonlinear cable analysis
Only one load case may be applied for a cable analysis. Therefore, multiple analysis sets should be added for each load case to be analyzed. A warning is generated when two or more load cases are used for a cable analysis.
-
Add or edit an existing analysis set in the Analysis Commands
dialog .
Refer to To add an analysis set for details.
- Select Cable from the Analysis type drop-down list.
- Select the desired Print option for including analysis results in the output file.
- Select the cable analysis Method: The analysis options update to reflect the method selection.
-
Specify the cable analysis parameters:
- Type the number of load Steps to use.
- Type the maximum number of Iterations to use within each load step.
- Type the convergence Tolerance for the iterations.
-
For the Basic method, specify the Additional
basic options:
- Type a Sag factor.
- Type a Stability matrix value.
- Type the number of Stability steps (load steps) over which the Stability matrix is applied.
- Type a Joint modification factor.
-
For the Advanced method, specify the
Additional advanced options:
- Select either a Full or Modified Newton-Raphson method.
- Select if the Geometric stiffness is to be considered.
- Click OK.