For the largest structures and complex analyses, CASA-IV Advanced Edition is the one to choose.
The Advanced Edition utilises multi-core processors to accelerate solution times and offers natural-frequency analysis, as well as further enhancements in visual presentation to allow the engineer to offer even more to discerning clients.
Natural-frequency analysis is performed without fuss, yielding not only numerical results and applying Relative Amplification Factors to static forces, the oscillating structure can be viewed in slow-motion animation.
Images can be pasted onto element surfaces, ideal for branding the model with client logos or depicting scenes of interest.
For when standard section shapes are not enough, an advanced section generator with easy yet precise sketch-like drawing allows the determination of arbitrary cross-section properties.