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T-FLEX Parametric CAD. Fundamentals. 2D Design

T-FLEX Parametric CAD. Fundamentals. 2D Design

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<strong>Fundamentals</strong>. Two-Dimensional <strong>Design</strong><br />

OPTIMIZATION<br />

556<br />

T-<strong>FLEX</strong> <strong>CAD</strong> provides a capability for computing parameters of a <strong>2D</strong> drawing or a 3D model by solving an<br />

optimization problem under certain constraints on the model variables. The solution to this problem yields a<br />

set of values for the existing variables that satisfy the imposed conditions best.<br />

Main Concepts<br />

Optimization of the model is done by using the command “PO: Optimize Model”:<br />

Keyboard Textual Menu Icon<br />

“Parameters|Optimize”<br />

The command is accessible only when numerical variables are present in the document.<br />

Calling the command brings up the dialog box "Optimization Task", that contains the list of the defined<br />

optimization problems. The column "Name" displays the name of the variable, whose value is optimized by<br />

the current task. The column "Comment" contains textual strings entered by the user.<br />

A T-<strong>FLEX</strong> <strong>CAD</strong> document may contain any number of optimization tasks.<br />

The graphical buttons at the bottom of the dialog box allow the following actions:<br />

Add. Entering a new optimization task.<br />

Delete. Deleting the task of the current list item.<br />

Properties. Displays "Optimization Parameters" dialog box of the current list item task.<br />

Run. Starts the optimization computations. The system seeks for the solution according to the specified<br />

optimization parameters and regenerates the drawing or the 3D model with the found variable values.<br />

Close. Exits the command.<br />

Optimization Task Definition<br />

Upon pressing the [Add] button, the "Optimization Parameters" dialog box is displayed that contains the<br />

following fields:<br />

Goal. Keeps the textual string that is the comment of this optimization task. Next are the combo box for<br />

selecting the target function (Make Equal, Minimize, Maximize), the variable Name combo box and the<br />

Tolerance input box. The variable is selected from the list containing all numerical variables present in the<br />

document. If the selected function type is “Make Equal”, then the input box becomes accessible for<br />

entering the target value of the variable.

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