Introducing VIBRATA

Vibrata is a comprehensive, easy-to-use, advanced dynamics toolkit to predict dynamic response such as stress and deflections due to dynamic environments including transient, harmonic, random, and response spectra, each of which can be defined by a function definition tool kit. Vibrata integrates design, analysis, and test activities for products for which dynamics is an important issue.

The initial software release addresses response of structures represented by one finite element model but will soon be expanded to the system level where component representations come from many sources.

Vibrata employs a modal post-processing approach that requires the user to solve for the normal modes of the structure (eigensolution) using his/her existing FEA solver (ABAQUS or
Nastran). Vibrata then uses the modal data to solve for the specified dynamic responses.

The software makes it easy to define, solve, and display simple and advanced dynamic problems. Interactive graphical processing allows the engineer to focus on the engineering physics rather than the data input formats and data transfer issues. Additionally, users can develop custom solutions and new methods using simple MATLAB scripting.

Vibrata Features

• Import eigensolution and matrix data from external FEA solvers, including residual vectors, constraint modes, and attachment modes (static corrections at load application locations to
  address modal sufficiency issues).
• Graphically view the model and mode shapes and list parameters such as frequency, modal effective mass, and modal damping values.
• Define the dynamic environments (forcing functions).
• Define the dynamic event, including the type of analysis (transient, frequency, random, and response spectrum), the excitations, modal damping, solution range and resolution.
• Solve for modal domain responses.
• Recover and store physical responses at any or all physical DOF as XY functions or field contours.
• Interactively select response functions and field data (contours) for plotting and or listing.
• Manage the input environments, event definitions, and recovered data.
• Sort and display results by min/max levels over entire time/frequency solution.
• Access and share function data between test and analysis.
• Visually display model and analysis diagnostics.

Supported Solvers

• ABAQUS
• NX Nastran
• MSC Nastran

Vibrata runs on Windows XP and 32- and 64-bit Linux. MATLAB 2007a (or higher) is required.

Sample Screenshots