Improving Utility and Handling of Fibre Rope Forerunners · Improving Utility and Handling of Fibre Rope Forerunners ... Bollard Pull and ... Test set-up for abrasion resistant coating

Improving Utility and Handling

of Fibre Rope Forerunners

Steven WardenierCommercial Director

Lankhorst RopesTugnology ‘13

Todays’ Presentation:

• Industry Changer

• Rope Characteristics

• Abrasion of Fibres

• New Coating

• Testing

• Conclusions

Maximizing Our Partnership: Unlimited Solutions

MARITIME & OFFSHORE DIVISIONManaging Director: Mr Wilco Stroet

Lankhorst Ropes

Manufacturer/supplier of high performance rope, steelwire rope and related hardware for the maritime and offshore market.

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Harbour Assistance

• Modern tugs with a high Bollard Pull and accurate handling

• High Modulus Polyethylene (HMPE)

Industry Changer

• Diameter related, equal strength to steel wire rope but up to 7 times lighter.

• Now can be manned by a crew of 3 or even 2.

Characteristics

• The strength / weight ratio being well accepted;

� Focus is on other characteristics.

� Abrasion Resistance of the Ropes

Abrasion on Ropes

• Abrasion results in loss of material and thus in loss of strength.

� External Abrasion (Contact with the Vessel)

� Internal Abrasion (Yarn to Yarn)

Scissoring motions of yarns

Forward and backward sliding motions of yarns

Multi component coatingCoating distribution in the transversal directionSoft components ‘migrate’ to the inside of the rope whilst the hard components stay on the outside (chromatographic effect)

Hard coating as the outer shell – protecting against external abrasion

Soft coating towards the core – protecting against internal abrasion

Rope coating development

Frequency control

Tension control

Close-up abrasion contact area

Exchangeable abrasion modules (in this picture: Panama chocks C-type)

Test set-up for abrasion resistant coatingdevelopment at DSM Dyneema (NL)

• Ropes tested with fixed frequency

• Benchmark: best performing commercially available rope on fairlead abrasion

• The Benchmark is set to 100%

• Rope with ICO-DYN 20 coating outperforms the benchmark with a factor of almost 6.4 and even 11 times better compared to an uncoated rope

• The rope constructions are the same (12-strand braided)

• Test conditions are the same

Test set-up for fairlead abrasion testing at TTI (UK)

Force

C20 Panama fairlead

• Ropes were subject to block loading

• Benchmark: best performing commercially available rope on fairlead abrasion

• The Benchmark is set to 100%

• Rope with ICO-DYN 20 coating outperforms the benchmark with at least a factor of two

• The rope constructions are the same (12-strand braided)

• Test conditions are the same

Fairlead test set-up for Ø 20 mm ropes at TTI (UK)

Fairlead test set-up for Ø 44 mm ropes at TTI (UK)

• Ropes were subject to block loading

• Benchmark: best performing commercially available rope on fairlead abrasion

• The Benchmark is set to 100%

• Rope with ICO-DYN 20 coating outperforms the benchmark with a factor of 3.4

• The rope constructions are the same (12-strand braided)

• Test conditions are the same

In house testing: New Coating Bench Mark: Factor 2 to 3

Field tests [quantitative]:– New vessels with no history– Vessels were moved to other ports– Premature break

� 550-600 jobs Ø 60 mm ABF 81,2%*� 510 jobs Ø 40 mm ABF 81,5%*

* No Protection

Quantitative: not conclusiveQualitative: extremely positive

Easy to use, easy to splice (without the protective covers)

Any Questions?

Steven Wardenier, Lankhorst Ropes

Tel: +31 (0) 78 611 7700

Email: [email protected]