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Arc-Length Methods Parameters dialog box

Name Defines the name of the modeling object.
Label Specifies a unique numerical identifier for the modeling object.
Type TYPE field in the NLPCI bulk data entry.Lets you specify the constraint type.
Minimum Arc-Length Adjustment Ratio MINALR field in the NLPCI bulk data entry.Lets you specify the minimum allowable arc-length adjustment ratio between increments for the adaptive arc-length method.
Maximum Arc-Length Adjustment Ratio MAXALR field in the NLPCI bulk data entry.Lets you specify the maximum allowable arc-length adjustment ratio between increments for the adaptive arc-length method.
Scale Factor for Loading SCALE field in the NLPCI bulk data entry.Scale factor (w) for controlling the loading contribution in the arc-length constraint.
Desired Number of Iterations DESITER field in the NLPCI bulk data entry.Lets you specify the desired number of iterations for convergence to use for the adaptive arc-length adjustment.
Maximum Increments MXINC field in the NLPCI bulk data entry.Lets you specify the maximum number of controlled increment steps allowed within a subcase.
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Controlling the iteration strategy in Nastran nonlinear analyses

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Arc-Length Methods Parameters dialog box, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id628651 · retrieved 2026-07-17