The critical stealth of submarines can be compromised easily with noise, making it vitally important 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.
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.
In an organisation like DCNS, with its diverse needs and expectations, the PULSE platform is expected to play many different roles. 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.
About Brüel & Kjær
Brüel & Kjær is a world-leading manufacturer and supplier of sound and vibration measurement systems.
Brüel & Kjær helps its customers measure and manage the quality of sound and vibration in their products and in the environment. Focus areas are aerospace, space, defence, automotive, ground transportation, airport environment, urban environment, telecom and audio.
Brüel & Kjær has an unparalleled portfolio of sound and vibration equipment and is a long-established designer and manufacturer of innovative instrumentation including sound level meters, microphones, accelerometers, conditioning amplifiers, calibrators, noise and vibration analyzers, and PULSE software. In addition, Bruel & Kjaer designs and manufactures the LDS range of vibration test systems, as well as complete airport and environmental monitoring systems: WebTrak, ANOMS, NoiseOffice and Noise Sentinel.
Brüel & Kjær also runs a variety of training courses, from basic introductions to noise and its effects to more specialised classes teaching customers how to get the most out of their equipment. Free, online training courses - conducted by our expert engineers - run throughout the year too.
Brüel & Kjær is a subsidiary of UK-based Spectris plc, which has annual sales of £1.1bn and employs around 7,500 people worldwide across its four business segments.
Brüel & Kjær
01223 389 800
Brüel & Kjær
01223 389 800