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Simple Shell Ring |
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You can build a simple shell ring using the Shell Ring command 
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After you run the command, specify the shell ring parameters, check the correctness of the given values using a phantom and complete the operation.
Operation result
The result of this operation may be creation of a new solid or merging of the element with the existing solid. To select the desired option, use the Result group of buttons on the Parameter Panel:
Merge,
New Solid.
More details on selecting an operation result...
Shell Ring Base
Define the shell ring base by selecting the required sketch.
•If the sketch is available in the model, specify it in the Design Tree or in the graphic area.
•If there is no sketch, build one by clicking the Create Sketch button 
located to the right of the Base field. The sketch placement process will start, and then the system will switch to the Sketch mode for creating geometry. Perform the steps necessary for building and exit the sketch mode. The created sketch will be automatically selected.
After you select a sketch, a phantom of the shell ring is displayed in the graphic area. The name of the selected sketch is displayed in the Base field.
You can change the sketch if necessary. To do this, click Base field and select the required sketch. You can also edit the selected sketch by clicking the 
icon in the Base field.
Parameters of the Shell Ring
Parameters of the shell ring (thickness, slope angle, etc.) are set using the controls located in the Main section of the Parameter Panel. All changes you make are immediately displayed on the phantom.
More details on setting shell ring parameters...
Flat Pattern
You can configure determination of the bend flat pattern length for a shell ring in the Flat Pattern section.
Select a method for determining the flat pattern length in the Length Determination Method list and specify the parameter for the selected method.
These parameters are valid for shell rings if their sketch contour contains segments and/or arcs. If the contour includes other objects, the flat pattern parameters will not affect unbending of the bends that are formed by these objects.
More details on setting determination of flat pattern length...
Flanges
You can configure flanges of the shell ring in the Borders section.
Select a method for creating base flangesby clicking the required button in the Base Flanges group.
For a shell ring based on a closed contour, specify:
•a method for creating joint flangesby clicking the required button in the Joint Flanges group,
•a gap value in the Gap field,
•a method for setting the gap offsetby clicking the required button in the Move group, and the parameter for the selected method.
Segmentation
You can segment arcs of circles and ellipses in the shell ring contour — replace them with polylines with segments of equal length. You can configure segmentation in the Segmentation section.
1.Set the Segmentation toggle switch to I (enabled). The controls to configure segmentation will appear on the Parameter Panel.
2.Select a segmentation method and specify a parameter for the selected method.
More details on setting up segmentation...
Properties of the Shell Ring
You can set the name of the shell ring and properties of its surface display using the controls located in the Properties section.
More details on managing the object color and optical properties...
Completing the operation
To complete building, click Create Object button 
.
After completing the above steps, the shell ring will appear in the model, and its icon will appear in the Design Tree.
Bends of the shell ring are also displayed in the Design Tree. If required, you can edit any bend.
To complete operation of the command, click Finish 
.
•You can set the thickness of the shell ring, construction distance and some other parameters in the graphic area using defining points.
•You can set linear and angular parameters using the commands of the geometrical calculator.
•You can change the default values of the shell ring parameters in the Sheet Solid Properties dialog.
•You may assign tolerances to the values of the operation parameters expressed in linear or angular values. To do this, run the Tolerance command located in the required parameter menu, or click the 
icon displayed in the parameter field (the icon is displayed if a tolerance is assigned to the parameter value).
More details on assigning tolerances...
See Also
