Page 15: of Maritime Reporter Magazine (April 2024)

hydro-acoustic design of a propulsor that delays cavitation meets its underwater noise limits. This will require specialized inception and cavitating area. The third approach should be test sites or specialized mobile underwater testing equipment. isolation mounting of a vibro-active equipment and machin- This process of designing and delivering a vessel meet- ery. This can range anywhere for the use of low-frequency ing the upcoming underwater radiated noise regulations is resilient mounts to use of a high-frequency mount such as spelled out in a book being published by Springer Nature distributed isolation material. There are numerous existing entitled Noise and Vibration Control on Ships; Understand- and developing approaches and treatments applicable to ma- ing and Cutting Through the Noise by Raymond Fischer and rine vessels. With the proper tools and expertise, selection Leo Boroditsky. of treatments and control approaches can be optimized to minimize adverse impacts on space, weight, and costs. These treatments can be used in new-builds and retro? ts. With a judicious selection of approaches and treatment a return on

The Author investment can be realized.

Inspection of the treatment installations is the “insurance”

Fischer required to ensure that all the effort going into a quiet ves-

Raymond Fischer (pictured) and Leonid

Boroditsky have been involved with the sel pays off. As needed, specialized diagnostic testing, dock- prediction and control of underwater radi- side or underway, may facilitate optimization of treatments. ated noise on more than 350 vessels.

Compliance testing is the ? nal stage, demonstrating the vessel [email protected] www.cimolaitechnology.com

Ship Lifting Platforms “Cimolift” Mobile Boat Hoists Portal Cranes Transfer Systems www.marinelink.com 15

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