All rights reserved. All other trademarks and registered trademarks are the property of their respective owners. During input, the NASTRAN interface assumes that the continuation line always follows the line before, therefore no continuation cards are needed in the input file. Warnings and error messages are written to a file called nastran.
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Contains Trade Secret Information. Usage of the software is only as explicitly permitted in the end user software license agreement. HyperWorks Overview of Finite Element Analysis Finite Element Analysis was first developed over 60 years ago as a method to accurately predict the reaction of complex parts to various inputs.
Prior to the development of FEA, the only way to validate a design or test a theory was to physically test a part. This was and still is both time consuming and expensive.
While FEA will never replace the final physical testing and validation of a design, it can drastically reduce the time and money spent on intermediate stages and concepts.
FEA in its infancy was limited to large scale computing platforms but the development of powerful personal computers, combined with intuitive software packages such as HyperWorks, has brought FEA to the engineers desktop.
This has broadened its use and accuracy many fold. These stages are outlined below. Complex geometry is broken down into simple shapes elements in the act of meshing. This allows the solver in the next step to predict the action of these elements and analyze the reaction of a complex part to external forces and interactions. The part is meshed and then definitions for the type and thickness of the material s are added.
Next, forces and constraints are applied. The model is then prepared for the analysis with information the solver will need to perform its calculations. The model is then written in a format that the solver can understand and is sent to the solver for processing. Step 2: Solving Solving is performed by any of the many commercially available software written to perform Finite Element Analysis.
Common outputs are Displacement, Stress, Strain and Acceleration. These results are stored in a file that then can be read in HyperView in the Post-Processing stage. Step 3: Post-Processing Post-Processing is where the results of the solver solution can be reviewed and analyzed. HyperView can provide presentation quality color contoured plots and animations highlighting any of the requested results. Information can be queried, displaced and even graphed in numerous windows allowing for customization geared toward the desired audience.
The default name of the group can be changed during installation. Most applications can be started using the following instructions. Or o User can create a Windows Shortcut by right clicking on the above program and selecting Create Shortcut. This directory defines where certain settings files are written by default, and where customization files will be searched. User can browse to different directories for opening and saving The file browser will also use this directory as its default location for browsing for files.
This can be considered as the "current working directory". This directory can be changed, thereby changing the location where these files are written to or read from. This has the benefit of allowing different settings to be stored in different directories to give control over the HyperWorks Desktop environment for different projects or use cases. This can be changed by editing the "Start in" field on the application executable or its shortcut.
Or Locate and right-click the HyperWorks Desktop executable file e. Select Properties to open the properties dialog. Select the Shortcut tab. Edit the Start in field to contain the path to the directory in which you want to run the HyperWorks Desktop application. This directory becomes the start-in directory. Click OK. Changing the Start-in Directory on Linux On Linux, the start-in directory is defined by the directory from which the user runs the application startup script.
HyperMesh writes command. HyperWorks Desktop writes hwsettings. Each of these files is detailed below. This file can be used to rerun operations or as a basis for determining the commands required to automate a given process. The command. Deleting this file simply results in a new file being created on the next operation. The hmmenu. Deleting this file resets the stored settings to their default values. It is possible to customize the location where this file is read from during start-up.
HyperWorks Desktop uses the following search order to find the hmmenu. If copies exist in multiple locations, only the first one found in the search order is used: 1. Start-in directory 2. Home directory 3. By default, the hmsettings.
It is possible to customize the location where this file is read from during start-up and written to on exit. HyperWorks Desktop always writes the hmsettings.
The following order is used to find the hmsettings. If this is defined, the search stops even if the file doesn't exist. By default, the hwsettings.
HyperWorks Desktop always writes the hwsettings. The following order is used to find the hwsettings. Help also contains detailed tutorials on many advanced HyperMesh functions. The toolbars, view controls, and menu bars change based on the application you select. This section will help you become proficient with the various ways this can be done in HyperMesh. The remaining exercises in this course will assume you know how to open and save files in HyperMesh.
You may need to rotate the model to understand the shape, zoom in to view details more closely, or hide specific parts of the model so other parts can be seen.
Sometimes a shaded visualization is best, while other times wireframe visualization is needed to work on details inside the model. HyperMesh has many functions to help you control the view, visibility, and visualization of entities. This section introduces you to these functions. View Control View control is accomplished through the use of the Standard Views toolbar icons, and 3D View Controls toolbar, and the mouse. With the CTRL key held on the keyboard the mouse provides total control over rotation, zoom and pan.
The icons can be found on the Display toolbar and are used as follows: Spherical Clipping The Spherical Clipping panel allows you to focus on specific areas of the model by displaying only the portions of a model inside a 3D spherical volume, while masking everything outside the sphere.
If you want to work on a small section of a large model without masking or turning off any entities, enable the clipping and pick the center and the radius of the clipping sphere. It can be accessed using the icon and will open the panel shown below. Model View The Model View resides on the Model Browser and allows you to view the model structure while providing full find, display, and editing control of entities. The model structure is viewed as a flat, listed tree structure within the browser.
However, if the model has an assembly hierarchy then the Model Browser accommodates this hierarchical structure. The browser can list every named entity within the session and places those entities into their respective folders; however, it does not support non-named entities such as nodes and elements. Some of the more important entities within the model include: assemblies, components, multibodies, properties, materials, entity sets, groups, load collectors, system collectors, vector collectors, and beamsectcols -- all of which are placed into a tree-like display.
To open the Model View, click the Model item located within the View menu. The browser displays on one of the tab area sidebars. The Model View is a powerful tool for controlling the visualization of the model. While there are often many ways to get to a function within HyperMesh, most often the actions lead the user to the panel area to select entities, enter values and execute functions.
The panel area is split into seven pages and on each page are panels that allow the user to utilize all of the functionality in HyperMesh.
Even if the user accesses a function through the use of the menu bar or the toolbars, much of the information will be entered in the panel area. While this manual cannot explain the functionality of every panel, much of the panel functionality is common amongst all of the panels and thus learning one panel will assist the user in the use of all panels.
This section introduces you to common panel attributes and controls as it guides you through translating nodes and elements using the Translate panel and measuring distances between nodes using the Distance panel.
Their look and functionality will be described below. The user picks the functionality within the panel that is desired by picking the appropriate subpanel radio button. Often, subpanels are organized into different columns when there are more than 7 subpanel options.
The column organization groups like functionality together in instances where the entire panel is not needed for information entry.
HyperWorks is a high-performance, comprehensive toolbox of CAE software for engineering design and simulation. The products contained within HyperWorks are summarized below:. HyperMesh HyperMesh is a high-performance finite element pre-and post-processor for major finite element solvers, allowing engineers to develop, compare, and contrast many design conditions in a highly interactive and visual environment. Because it handles unusually large models, this allows for a much finer mesh, and simulations that are more accurate. HyperMesh's graphical user interface is easy to learn, and supports the direct use of CAD geometry and existing finite element models, thus reducing redundancy. HyperMesh offers unparalleled speed and flexibility. HyperGraph This easy to use, enterprise-wide, engineering analysis tool empowers engineers throughout an organization to quickly and accurately graph and interpret engineering test data.