Underwater Radiated Noise
Marine Services
URN – Prediction of noise radiated into water
Underwater Radiated Noise (URN) in the oceans due to shipping activity has increased over the last few decades. This significant increase in underwater noise (URN) can be explained by the notable growth in maritime traffic in recent years and the increase in seismic exploration in the oceans. In relation to this issue, the current high level of underwater radiated noise in the oceans is having a negative impact on marine fauna, as demonstrated in many studies by scientists and biologists around the world.
Reducing underwater radiated noise (URN) in the oceans is vitally important to ensure the sustainability of the marine environment and protect marine life, as well as to be able to operate optimised, sustainable and high value-added silent ships.
TSI, as a leader in the design of quiet, high value-added ships, is in the best position to be your specialist partner in the ongoing challenge of designing and building a new generation of quiet ships using the most advanced engineering technology developed and implemented to minimise URN and increase the quality and excellence of ships.
- Underwater radiated noise prediction calculation.
- Underwater radiated noise measurments from vessels and floating platforms.
- Acoustic signature optimization
- Cavitation detection system.
URN – Prediction of noise radiated into water
TSI, by means of its well-known Noise & Vibration Comprehensive Management methodology, has demonstrated its capacity to identify which type of actions can be potentially used to manage and minimize URN generated by ships in the oceans without affecting the marine traffic and the transport of goods.
TSI is able to lead the designing of a new generation of “Silent Ships” in compliance not only with the strictest Comfort Class Notations requirements but also with the most restrictive URN requirements such as ICES Nº 209 (International Council for the Exploration of the Sea).
We are experts in Silent Ship Design.
Measurements of noise radiated to water
Noise radiated to the water by ships is becoming one of the most important factors to take into account when designing ships. For this reason is being common to included noise radiated to the water measurements in the measurement campaigns of the vessels.
TSI has collaborated in the development of standards for URN measurements and has participated in several European Research Projects related to the acoustic signature of the vessels. We have all the equipment and human resources to carry out URN measurements and we have more than ten years of experience carrying out these type measurements
We are certified by Bureau Veritas and DNV-GL as a Service Supplier to perform this service.
Optimization of the Vessel’s Acoustic Signature
We calculate the noise radiated by ships and floating structures and define actions in case the limits defined in the Specification or by the Classification Societies are exceeded.
