The most challenging part of designing resilient systems for propulsion systems in navy vessels is balancing all requirements on shock, vibration and structure-borne noise. All three aspects ask for different resilient mounting configurations and then we haven’t mentioned the usual demands for low weight and space yet. The basic techniques of separating natural and exciting frequencies is hardly sufficient nowadays with the ever-increasing demands of navies to reduce their detectability. Forced vibration calculations can predict actual vibration levels in order to assess the risk of coinciding excitation and natural frequencies. In this respect the influence of torsional excitation on the vibration levels of surrounding components is often overlooked. As every project is different, our role in the project differs as well.
Sometimes we act as sparring partner for our customers and find the best solutions together. In other cases we help our customer by using our holistic approach and finding the best solution in resilient mounts and couplings for that specific application. Apart from couplings and (shock) mounts we also custom design and produce intermediate frames, always with the best possible dynamic behaviour of the complete system in mind. Although navy shipbuilding usually has a strong preference for local content, many projects are internationally orientated. VULKAN has a truly international character and is present in many countries, enabling the right support for your project. A good example occurred recently when we performed a bump test for a customer as we were nearby.