Stackable lightweight vortex induced vibration suppression
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TRELLEBORG OFFSHORE analysis. Physical hydrodynamic testing combined with in-house impact, axial slip and load bearing capacity testing has produced a hydrodynamically efficient and load bearing capable product. All materials and geometries used are fully qualified for long term subsea use. Each section of the system has been designed as a single, lightweight component, enabling quick and easy pre-install onshore or install offshore. The design permits the system to be stacked efficiently during shipping, ensuring more efficient and cost effective transportation and installation. Pipelines unsupported over free spans, such as steel catenary risers and rigid steel flowlines, are prone to vortex induced vibration (VIV) fatigue, which can cause serious performance issues such as pipe girth weld failure or premature pipe malfunction. Developed in response to market demand, the Tri-Strakes ® L (Lite) is a high quality, cost-effective VIV suppression system manufactured by Trelleborg Offshore. The system consists of overlapping and interlocking moldings, with three-start helical strakes to provide an effective triangular or trapezoidal strakes profile. Working with polymers across a number of technologies and industries, Trelleborg Offshore was able to use insight and innovation to improve packing and handling factors using best-value engineered solutions. The innovative manufacturing process means that the Tri-Strakes ® L (Lite) can be produced up to six times faster than systems manufactured using traditional techniques, ensuring shorter lead times. To perform at every level, Trelleborg Offshore built up a wealth of in-house VIV knowledge through consultation with industry renowned hydrodynamicists, alongside computational Tri-Strakes ® L Lite Stackable & lightweight vortex induced vibration suppression
Transcript of Stackable lightweight vortex induced vibration suppression
TRELLEBORG OFFSHORE
analysis. Physical hydrodynamic testing combinedwith in-house impact, axial slip and load bearingcapacity testing has produced a hydrodynamicallyefficient and load bearing capable product. Allmaterials and geometries used are fully qualifiedfor long term subsea use.
Each section of the system has been designed asa single, lightweight component, enabling quickand easy pre-install onshore or install offshore.The design permits the system to be stackedefficiently during shipping, ensuring more efficientand cost effective transportation and installation.
Pipelines unsupported over free spans, such assteel catenary risers and rigid steel flowlines, areprone to vortex induced vibration (VIV) fatigue,which can cause serious performance issuessuch as pipe girth weld failure or premature pipemalfunction.
Developed in response to market demand, theTri-Strakes® L (Lite) is a high quality, cost-effective VIV suppression system manufactured by TrelleborgOffshore. The system consists of overlapping andinterlocking moldings, with three-start helical strakes to provide an effective triangular ortrapezoidal strakes profile.
Working with polymers across a number oftechnologies and industries, Trelleborg Offshorewas able to use insight and innovation to improvepacking and handling factors using best-valueengineered solutions. The innovative manufacturingprocess means that the Tri-Strakes® L (Lite) can beproduced up to six times faster than systemsmanufactured using traditional techniques,ensuring shorter lead times.
To perform at every level, Trelleborg Offshorebuilt up a wealth of in-house VIV knowledgethrough consultation with industry renownedhydrodynamicists, alongside computational
Tri-Strakes® L Lite
Stackable & lightweightvortex inducedvibration suppression
WWW.TRELLEBORG.COM/OFFSHORE
Features:
• Cost effective, high density packaging• Light weight and easy to handle• J-Lay load bearing capacity• Temperature resistant up to 90 °C / 194 °F• Qualified geometry and materials• Quick installation• Available in a wide range of colors
For a highly resilient vortex inducedvibration suppression solution take a look atour Tri-Strakes® S (Stinger) product at:www.trelleborg.com/offshore/tri-strakes-stinger
For a combination of the stackability of theTri-Strakes® L (Lite) with the load resilience of theTri-Strakes® S (Stinger) take a look at ourTri-Strakes® C (Combi) product at:www.trelleborg.com/offshore/tri-strakes-combi
Pipeline installation
Installation ofTri-Strakes® L Lite
Traditional PU Strakes Trelleborg’s new Tri-Strakes® L Lite
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