![]() A computer program, named as V-Span for subsea span VIV analysis, is used to analyze both in-line and cross-flow VIV of the pull tube. It makes sense to single out the pull tube mode for study as if it is the first mode. If the entire structure is analyzed with Shear7, the mode for the pull tube (a mode involving a large motion of the pull tube section), which is very high in order, would be embedded in the analysis. The diameter of the pull tube is much larger than that of the SCR, and the pull tube is much stiffer in bending than the SCR is. The pull tube is secured on the platform through a number of guides on the truss structure of the hull. Afterwards, the structural nodes are rearranged for VIV analysis with Shear7. The modes are then calculated for the entire structure with program Modes. Firstly, the entire SCR-pull tube system is modeled with the finite element program Flexcom. This paper presents a methodology for VIV analysis of the combined structural system of the SCR with the pull tube. The application of such a software tool in VIV design of the SCR-pull tube system requires careful consideration of a number of structural and hydrodynamic factors. VIV analysis programs, such as Shear7, are suitable only for a single, chain-like structure. Vortex-induced vibration (VIV) of such a system is complex. Many of our Lifetime License options are exclusive offers, at the web's best prices.The method of pulling a steel catenary riser (SCR) through a steel tube (termed as a pull tube) is common practice for deepwater riser tie back applications. ![]() You'll get a lifetime of major updates, and inevitably a world of new features that are beyond our current imagination. That's why a Lifetime License is so appealing. Perhaps it no longer works properly with your new computer or OS, or maybe you're simply missing out on serious improvements and experiencing some major FOMO. V2, V3, V4), older versions often grow obsolete. As you know, when an app gets a major update (and advances to the next version e.g. Minor updates usually include fixes to bugs that surface post-launch. Great question! A Standard License issues full access to the app and all minor updates for life. What's the Difference Between a Standard & Lifetime License? Redemption deadline: redeem your code within 30 days of purchase.Download videos w/ 4K, HD & 60fps support.Recognize when videos are part of a playlist & choose which to download.Simply drag & drop and copy and paste videos to download.Use clever Chrome & Safari extensions to download faster. ![]() Download any online video or playlist from thousands of websites.Plus, with the ability to convert videos to mp3 and m4a formats, you can also use PullTube to create your own offline music playlists. Its streamlined browser extensions let you download content even faster, and it's even capable of recognizing when videos are part of a playlist. Using the app's minimalist interface, you simply copy and paste your video link into the text field or drag and drop the highlighted video URL or thumbnail anywhere on the window to start downloading. ![]() PullTube lets you seamlessly download your favorite video content from hundreds of sites, so you can enjoy them offline and lag-free. That's why downloading videos is a smart move for the proactive binge-watcher. You can't always count on your connection to be ready for your next trip down the YouTube rabbit hole.
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