The attachment point of fish farming nets to the floatation structure, referred to as the Collar Tie, has been identified as a weak point for particularly for areas where pens are deployed in high energy environments. With industry partner Tassal, the project will develop a new and robust methodology, and a marketable product as a replacement to the current Collar Tie solution. The project will employ a novel injection-over-moulding technology to provide more robust and wear resistant rope-to-rope connections. As part of the research, the present wear mechanisms will be investigated and the results used to select appropriate materials and develop designs that effectively mitigate wear. Field trials of prototypes will be conducted to validate the product performance and to gain valuable insights for future improvements.

THESIS ABSTRACT

February 2025: Developing a robust collar tie