Introduction to Adams/Vibration
Adams/Vibration is an Adams plugin for performing frequency-domain analyses. Using Adams/Vibration, you can study forced vibrations within your Adams models. For example, you can simulate driving an automobile over a bumpy road and measure its frequency response. Both inputs and outputs are described in the frequency domain.
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Specify frequency domain input functions, such as swept sine amplitude/frequency, power spectral density (PSD), and rotational imbalance.
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Export Mass, Stiffness and Damping Matrices of the linearized model to Nastran bdf file for performing Modal and Frequency Response analysis of the full Adams model in the Nastran environment.
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Using Adams/Vibration, you can assemble models of various subsystems, perform linear vibration analysis, and use Adams post-processing tools to view results as plots and animations.
Adams/Vibration enables you to work faster and smarter, letting you replace physical testing for vibration studies using shaker devices with virtual testing. Physical testing with shaker devices in the test lab or in the field is expensive and can typically only occur at later stages of the design process. Using Adams/Vibration, you can perform these tests early in the design process cutting down on design time and expense.
It is impossible to eliminate all vibration from products that are made up of flexible components. It is possible, however, to design products that do not have bothersome vibrations. For example, at certain speeds, poorly designed automobiles can have annoying noises that are due to vibrations of certain components. Some companies have design guidelines that indicate acceptable ranges of vibration frequencies.
Adams/Vibration output data can be used in noise/vibration/harshness (NVH) studies to predict the impact of vibration on the rider's experience in an automobile, train, plane, and so on.
Adams/Vibration runs as a plugin to several products: Adams/View, and Adams/Car. After you start a core product, you then load the Adams/Vibration plugin. To work with an existing Adams model, you can load the Adams/Vibration plugin either before or after you import the model. You can also create a model in another Adams product and then load the Adams/Vibration plugin.
When you import a model that already contains Adams/Vibration data, you do not have to load the Adams/Vibration plugin manually; the core product automatically loads the plugin for you. This section shows you how to load the Adams/Vibration plugin into Adams/View. Loading the plugin into other core products is similar.
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Select OK.
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The Adams/Vibration plugin loads in Adams/View. If you get an error message, you might have a problem with your licensing. Contact your system administrator or your Adams contact person.
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Select OK.
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To start Adams/Vibration, you must first start Adams/View (or one of the Adams vertical products), and then load the Adams/Vibration plugin.
• On UNIX, type the command to start the Adams Toolbar at the command prompt, and then press Enter. Select the Adams/View tool.
• On Windows, from the Start menu, point to Programs, point to MSC.Software, point to MD R2 Adams, point to AView, and then select Adams - View.
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Select Import a File.
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Select the Find Directory tool next to the Start in text box. This displays the Find Directory dialog box.
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The Start in text box specifies the working directory that Adams/Vibration uses as the default directory for reading and writing files.
Select OK
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Select OK.
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The File Import dialog box appears.
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Select OK.
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