STRAKES – STANDARD AND PATENTED ROV-FRIENDLY
AIMS fixed-fin vortex strakes are designed for ease of installation and are custom manufactured to project specifications. The strakes can be installed via S-Lay, J-Lay and Reel-Lay, as well as our patented ROV-friendly design.
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AIMS strakes are backed by full scale tank testing with Reynolds Numbers (Re) ranging from the low 1,000s to ~2,000,000. In fact, AIMS’ 3D matrices have been introduced into the SHEAR7 program for utilization by riser designers.
Our material of construction, molded polyethylene, allows good manufacturing tolerances and repeatability, low drag coefficients, and high efficiency in vortex-induced vibration (VIV) elimination. Other materials can be used upon request. Furthermore, AIMS can also coat the strakes to achieve Antifouling characteristics.
AIMS standard design employs a triple helix with a 15D fin period and a 0.25 D fin height. Other designs can be manufactured upon request. The VIV Suppression Efficiency of AIMS strakes is 93 percent or greater. Our average Drag Coefficient, cd, is 1.5.
FAIRINGS – PATENTED STANDARD AND ROV-FRIENDLY ADFS
The patented AIMS Dual-finned Flow Splitter (ADFS) fairings are used to suppress vortex-induced vibrations in any region of a steel catenary riser (SCR), drilling riser, or structural tendons. The ADFS is an alternative to the conventional “tear-dropped” fairing and is more stable and efficient at reducing drag and vortex induced vibration (VIV).
PULTRUDED FIBERGLASS GRATINGS
AIMS’ DeltaSpan pultruded grating product offers excellent unidirectional strength and corrosion resistance. This product has been developed to meet specific requirements and is particularly suited for highly corrosive environments. It offers extended life and eliminates periodic maintenance and replacement costs making it the preferred alternative to conventional steel gratings.
Fiberglass Handrail Systems
DeltaRail meets your requirements, from small platforms to complex structures, with high-strength, maintenance-free handrails that are ideal for any location.