DCNS Boosts Stealth with PULSE

DCNS Opts for PULSE to Boost Stealth

SUBMARINE AT SEA

 

The ability to be undetected in naval industry, or stealth, is vital for maritime defence companies when developing a vessel design and subsequently building and testing a ship.

“Measurements that took five to six hours can now be completed in less than two hours.”

The critical stealth of submarines can be compromised easily with noise, making it crucial to understand any problems early in the design stage, rather than when at sea. New equipment such as fans, pumps, superchargers and motors must be vetted by a team of technicians and engineers. The vibration and acoustic signatures of this machinery is measured and analysed according to in-house standards and matched up to stringent acceptance limits, that ensure the repeatability of measurements and thus reliable accept/reject criteria.

Time being a pressing factor, especially during costly sea trials, there is always a need for innovative solutions that will be efficient to resolve these issues.
DCNS Boosts Stealth with PULSE

For this purpose French naval shipbuilder DCNS has selected a Danish multinational engineering company Brüel & Kjær and its PULSE system.

The PULSE measurement and analysis platform – and PULSE Data Manager – have cut significantly the speed and ease with which DCNS can perform tests – and share and compare data across the entire organisation.

According to Measurement Technician Anaud Mesnill, “Measurements that took five to six hours can now be completed in less than two hours.”

DCNS has customised and streamlined many of the measurement tasks, and now has many gigabytes of data stored on central servers from five years of tests, including those dating back five years. Aside to having a comprehensive database, the ability to tailor interfaces to the specific requirements of individual tasks is now essential for efficient operation.

DCNS uses PULSE for acceptance testing of electro-mechanical equipment and for vibro/acoustic control of on-board systems. Sound and vibration assessment covers sound intensity, vibration, underwater acoustics, modal analysis, sound power and mobility. These measurements are performed throughout the organisation, which totals over 13,000 employees worldwide and at many different sites including Brest, Lorient, Nantes-Indret, Toulon and Cherbourg.

Different operations use PULSE for vastly different applications such as acceptance testing, design, R&D, maintenance and troubleshooting. Measurements for sound intensity, underwater acoustics, radiated noise, vibration analysis, machine diagnostics and modal analysis are collected, processed, analysed, stored and managed by the PULSE platform.


Read More in DCNS Case Study

Naval Today Staff, January 14, 2014; Image: DCNS

 

Share this article

Follow Naval Today

One thought on “DCNS Boosts Stealth with PULSE”

Comments are closed.

Events>

<< Aug 2016 >>
MTWTFSS
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 1 2 3 4

Sea-Air-Space 2017

Sea-Air-Space is now the largest maritime exposition in the U.S. and continues as an invaluable extension of the Navy League’s mission…

read more >

SMM 2016

The SMM in Hamburg is the world-leading fair of the maritime economy. It takes place every two years in Hamburg, because due to the long…

read more >

EURONAVAL 2016

Euronaval 2016 in Paris, is one of the leading international trade shows for maritime security, safety and naval defense…

read more >

Naval Mission Systems Technology

Integrating Naval Assets to Ensure Enhanced Maritime Operations and Support.

Navies are constantly looking at how the collection and dissemination of data from marine helicopters, UAVs, radars and shore based sensors through C2 systems can be improved to produce an accurate, clear, and all-encompassing picture of the maritime theatre for allied forces.

The complexity associated with effectively coordinating the variety of operations of these systems means that interoperability between all systems, divisions, and nations is of paramount importance. Therefore, SMi’s Naval Mission Systems Technology Conference will explore the strategies and technologies required to develop next generation capability in this vital area of national defence.

The expert speaker panel includes: Italian Navy, U.S. Navy, NATO Modelling and Simulation Center of Excellence (M & S COE), BAAINBw, The Defence Science and Technology Laboratory (Dstl), University College London and many more.

More info

read more >