Chapter 9: Selecting and Components
If you have a large model, it is helpful to work with just a portion of the model data to apply loads, to
speed up graphics displays, to review results selectively, and so on. Because all ANSYS data are in a
database, you can conveniently choose subsets of the data by selecting them.
Selecting enables you to group subsets of nodes, elements, keypoints, lines, etc. so that you can work
with just a handful of entities. The ANSYS program uses a database to store all the data that you define
during an analysis. The database design allows you to select only a portion of the data without destroying
other data.
Typically, you perform selecting when you specify loads. By selecting nodes on a surface, for example,
you can conveniently apply a pressure on all nodes in the subset instead of applying it to each individual
node.
Another useful feature of selecting is that you can select a subset of entities and name that subset. For
example, you can select all elements that make up the fin portion of a heat exchanger model and call
the resulting subset FIN. Such named subsets are called components. You can even group several
components into an assembly.
The following topics concerning selecting and components are available:
9.1. Selecting Entities
9.2. Selecting for Meaningful Postprocessing
9.3. Grouping Geometry Items into Components and Assemblies9.1. Selecting Entities
You can select a subset of entities using a combination of seven basic select functions:
- Select
- Reselect
- Also Select
- Unselect
- Select All
- Select None
- Invert
Release 15.0 - © SAS IP, Inc. All rights reserved. - Contains proprietary and confidential information