Tractor-semitrailer web site help: Model/Constrained

The Constrained unit located in the drop line menu under the horizontal menu's Model tab offers data briefs from the CONSTRAINED LS-DYNA keyword. Data queries are conducted on the selected model. Current model selection is indicated in the page title with the name of the FEM model source file name. Model selection can be made through the Model's Selection tab.

The constraints are conveniently grouped into smaller units according to their type. These units can be easily reached from the vertical navigation menu located at the left-hand side of the page. Current unit selection is highlighted in separate color.

Constrained display image

Essential information about the constraints used in the selected model is displayed in tabular format with each constraint filling one data row. The data is appropriately linked to related model content.

Essenital constrained data image

Constraint specifics can be reached by following the constraint identification number link, or by selecting the checkbox adjacent to the constraint identification number and then clicking on the Submit Query button located below the table(s). The latter approach is convenient for simultaneous selection of several constraints.

Constrained specifics link image

Constrained specifics multiple selection image

In constraint specifics the essential data for the chosen constraint(s) is accompanied with access to:

Constrained specifics image

Excerpt from the FEM model source file containing the chosen constraint entry is accessible through the Input Lines link. A popup window shows the chosen constraint entry conveniently numbered such that numbers correspond to the FEM model source file lines.

Input Lines image

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Help from the LS-DYNA User's Manual can be reached through the Manual link. A popup window opens the manual at the specific keyword entry. A pdf reader is required for viewing.

LS-DYNA User's Manual image

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