Nodes - CAESAR II - Help

CAESAR II Users Guide

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CAESAR II
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CAESAR II Version
13

Piping Input menu: Global > Nodes Block Operations Renumber icon

Block Operations toolbar: Renumber Block Operations Renumber icon

Rearranges the node numbers in the block.

You can use this command to clean up part or all of the piping system. It is not unusual to put the entire model in one block and do a full renumber of all nodes.

To renumber the node numbers in a block

Make copies of any large jobs before renumbering them. Be particularly careful when renumbering systems containing large numbers of interconnected restraints with CNodes.

  1. Select the block of nodes you want to renumber from the 3D Graphics pane or in the Elements dialog box.

  2. Click Renumber Block Operations Renumber icon in the Block Operations toolbar.

    The Block Renumber dialog box displays.

  3. Select whether you want the software to increment or renumber the block nodes.

    • Select Increment to change all node numbers in the block. The change (+ or -) is specified as the Node Increment. For example, if you have nodes of 10, 30, 600, 25 and 670 in a block, and you select Increment and specify a Node Increment of 100, the software changes the node numbering in the block to 110, 130, 700, 125 and 770, respectively.

    • Select Renumber to enable the Start Node box and renumber the selected block of nodes from the Start Node number by the Node Increment that you specify. For example, if you have nodes of 10, 30, 600, 25, and 670 in a block, and you select Renumber and specify a Start Node of 100 and a Node Increment of 10, the software changes the node block numbering to 100, 110, 120, 130, and 140, respectively.

    Be aware that the Start Node and Node Increment values may introduce node numbers used elsewhere in the model.

  4. Select Renumber Matching Nodes Outside to renumber the same nodes outside of the selected block.

    CAESAR II renumbers the nodes of the elements that are connected to the selected block, and the model remains connected in the same way as it was before the renumber. The boundary nodes include the From and To nodes of the elements connected to the selected block, plus the nodes of the auxiliary data block that are connected to the selected block.

    The software renumbers every node in the selected block on the model.

    • If you clear Renumber Matching Nodes Outside, the software does not apply the increment or renumber action to restraints, displacements and branch connections in the selected block of nodes.

    • CAESAR II does not typically renumber a CNode in a block, because the CNode is connected to a node outside the block. The software does not renumber CNodes if they do not connect to a node in the block and on the piping system.

SHARED Tip To avoid any confusion when renumbering nodes, start the renumbering at a node greater than the largest node in the model. If all nodes renumber successfully (that is, there are not any dangling CNodes), then you can specify a Node Increment with a negative increment to shift the newly renumbered nodes back into the original range.

Typically, you may graphically select multiple blocks to renumber. However, CAESAR II can only perform the renumber operation for the first block, with respect to the element list. In this case, CAESAR II displays a message box with information about the block that is to be renumbered. You can then continue to renumber the second block and so on until all blocks are renumbered.

Piping Input Block Renumber Message box

For more information, see Performing Block Operations.