RISE and reliability

The Research Institutes of Sweden (RISE) offer services in applied science, industrialisation, verification and quality assurance. In the field of ocean energy, its focus is on the main challenge facing the sector – reliability

As a nascent technology operating in a harsh offshore environment, the engineering needed to achieve acceptable levels of reliability and cost for ocean energy technologies is considerable. Yet, reliability is crucial to these installations viability, and to their success.

Owned by the Swedish state, RISE’s 2,200 employees are engaged in all types of innovative processes and its 100 testbeds and demonstration facilities are instrumental in developing the future-proofing products, technologies and services.

KEY FACTOR Pierre Ingmarsson, Project Manager commented: “Reliability is a key factor for cost efficient offshore structures and devices. Understanding load cases and materials in these conditions is necessary for successful innovation. We need to measure the uncertainties and quantify them both onshore and offshore.”


RISE supports the ocean energy sector by planning and conducting measurements, as well as carrying out analysis of field measurements on operational loads. Using applied science the organisation focuses on existing scientific knowledge to develop more practical applications, like technology and innovation. Furthermore the organisation has got the capacity to develop and build dedicated measuring systems for harsh environments. The laboratories have the capacity to perform testing and analyse materials and components with corresponding load spectrums using accelerated testing methods.


Expertise, resources and accreditation The organisation has the expertise and the experimental resources needed to evaluate a product’s durability against corrosion, biofouling, solar exposure, moisture/water, chemicals, heating/ cooling, etc. It can test and analyse paints, varnishes, metallic coatings and other surface protection systems. For example, it is accredited for over 70 methods related to coatings. Specifically the antifouling group at RISE consists of highly skilled scientists and technical personnel with many years of experience in the field leading collaboration project in different marine sector included ocean energy.

CONTINUAL DEVELOPMENT RISE continually develops new measurement technologies and new methods of measurement. Its expertise in developing and improving measurement technology and methods

is a valuable resource that benefits customers. Its wide ranging experience, spread across several technological and knowledge areas, means it can produce innovations and find new technology applications which ultimately benefit customers.

VARIATION MODE AND EFFECT ANALYSIS (VMEA) The organisation has extensive experience in fatigue life evaluation and testing, where the variations are large due to scatter in both fatigue strength and operating loads. They employ the reliability method Variation Mode and Effect Analysis (VMEA), which evaluates all possible uncertainties.

VMEA is a flexible tool that can be used from the initial design phase with limited access to data, to the detailed design of the final product. Using VMEA for fatigue life analysis and design makes it possible to change from deterministic to statistically based safety factors.

COLLABORATION In the ocean energy sector, RISE brings its considerable expertise to bear to support technology developers. It does this through collaborative projects with industry partners such as: RiaSoR I and II, low voltage dynamic cables, OCEANIC, Waveboost, LEAF – Low Emission Antifouling, and CHANGE.

The Research Institutes of Sweden



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