- Delivers custom non-linear response curve
- Provides greater storm protection
- Protects against shock loads
- Constructed from durable Hytrel thermoplastic composite
- Scalable for different applications
Our expert team at TfI Marine have developed a proprietary Hytrel thermoplastic spring that uses an innovative convolute design to create a tailored non-linear response with smooth engagement to eliminate shock loads in a mooring system, effectively working as a tensile shock absorber.
Our springs are designed to deliver specific stress-strain responses under compression, which allows far superior load management. Through variations in shape and material design of the spring convolutes, we have found a way to define the behaviour of the spring, enabling excellent force control in a mooring system.
By altering the length, wall thickness, material formulation, diameter (inner and outer), convolute radii (inner and outer), pitch or shape, we can create a spring that will deliver any desired load response. This spring response is dictated by changes in the cross-sectional area that is bearing the load. As this load changes, the effective cross-sectional area changes throughout compression, delivering a non-linear response.
These Thermoplastic springs, when combined with our elastomer tethers, offer the ultimate protection against storm loads. They can be manufactured on a bespoke basis to deliver the desired stress-strain response for your floating structure. Our springs were deployed on the Scotrenewables SR2000 tidal energy turbine in October 2016 as part of the FloTec Tidal Energy project, off the coast of Orkney in Scotland.