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Computer methods for assessing reliability of complex structures

Summary of the impact

The Computational Mechanics and Reliability Group at the University of Greenwich has been developing computational methods for predicting material behaviour and component reliability since the late 1990s. This case study details economic and environmental impacts and impacts on practitioners. In particular it shows how our expertise has:

  • substantially aided companies to predict reliability of new electronic systems before physical prototyping providing significant cost savings;
  • enabled companies to assess impact of new materials that address environmental legislation;
  • provided information to the Cutty Sark Trust in help maintain this national maritime treasure.

Submitting Institution

University of Greenwich

Unit of Assessment

Computer Science and Informatics

Summary Impact Type

Technological

Research Subject Area(s)

Mathematical Sciences: Applied Mathematics
Information and Computing Sciences: Artificial Intelligence and Image Processing
Engineering: Materials Engineering

International standards and working practices of UK Aerospace & Defence industry changed by reliability growth modelling

Summary of the impact

New business models, technological innovations and global markets, demand that engineering firms better manage how they grow and achieve reliability during product development. A reliability growth modelling framework, developed from research at the University of Strathclyde, is being used by and influencing UK industry practice in the aerospace & defence sector. Our model underpins the modern approach to reliability growth management in Aero-Engine Controls (a Rolls-Royce company), Selex ES, and contributes to the Reliability Case required by the Ministry of Defence. The Strathclyde model is included in the international reliability growth standard (IEC 61164) which is adopted globally by manufacturing firms and procurement agencies.

Submitting Institution

University of Strathclyde

Unit of Assessment

Business and Management Studies

Summary Impact Type

Societal

Research Subject Area(s)

Mathematical Sciences: Statistics
Information and Computing Sciences: Information Systems
Economics: Applied Economics

3. Practical Waveform Engineering - Reshaping Today's Communication Systems

Summary of the impact

Practical Waveform Engineering, developed at Cardiff, is having a major impact on how modern- day microwave power amplifiers are designed, delivering real competitive advantages for global communications companies such as Nokia-Siemens-Networks and M/A-COM.

Economic impact is through reduced time-to-market and lower design costs, leading to high- performance power amplifier products. Examples include $40M revenue and employment of additional staff for M/A-Com, and the successful spin-off company Mesuro Ltd., generating revenue in excess of £2.5M.

Impact on practice is through successful demonstration of new device technologies and amplifier architectures, the introduction of PWE-based CAD models, and most significantly, the introduction of the "Cardiff Model" into mainstream simulation tools.

Environmental Impact is by improving the efficiency of power amplifiers and significantly reducing the carbon contribution of mobile communications systems, translating into savings of approximately £2.5M/year and a 17 kiloton reduction in CO2 emission for a typical EU network.

Submitting Institution

Cardiff University

Unit of Assessment

General Engineering

Summary Impact Type

Technological

Research Subject Area(s)

Mathematical Sciences: Applied Mathematics
Information and Computing Sciences: Computation Theory and Mathematics
Technology: Communications Technologies

Decision Analysis and Support Tools for the Aerospace Industry

Summary of the impact

Research carried out at the University of Southampton has enabled major players in the aerospace industry — among them Rolls-Royce, Airbus, and Boeing — to produce more fuel efficient, longer lasting engines and aircraft at reduced cost. The research has provided the aerospace industry with modelling tools and software enabling companies to explore complex new designs quickly whilst managing product risk in a competitive market. The research team has also developed new design processes for unmanned aircraft, which — as a result of strong media interest - improved public understanding of such new technologies through worldwide coverage. A spin-out company has achieved strong technological and economic impacts in its own right.

Submitting Institution

University of Southampton

Unit of Assessment

General Engineering

Summary Impact Type

Technological

Research Subject Area(s)

Mathematical Sciences: Applied Mathematics, Numerical and Computational Mathematics

Affordable Diffusion Bonding (ADB) of laminate sheet to produce micro-cellular structures relevant for ultra-lightweighting and high efficiency thermal and chemical devices for the aerospace, automotive, medical, chemical manufacturing sectors.

Summary of the impact

Diffusion bonding (DB) is well-known for producing structured materials with fine scale features and is a critical technology for high efficiency reactors, e.g. heat exchangers and fuel cells, but currently equipment is slow and expensive (and there are size limitations to the `assemblies' that can be built). The University has researched and developed, with industry partners, a rapid affordable diffusion bonding (ADB) process involving direct heating to provide appropriate temperature and stress states and utilising flexible ultra-insulation (vacuum) for pressing titanium (and now aluminium) sheets together. The process operates at low stresses thus avoiding `channel' collapse. Investment is taking place in the partner companies to exploit the technology. A breakthrough has been achieved in the chemical machining of three dimensional structures for laminar flow technology assemblies in aluminium and titanium, that can be built by ADB.

Submitting Institution

University of Wolverhampton

Unit of Assessment

Aeronautical, Mechanical, Chemical and Manufacturing Engineering

Summary Impact Type

Technological

Research Subject Area(s)

Engineering: Manufacturing Engineering, Materials Engineering

Unique simulation software tools for the global semiconductor industry

Summary of the impact

The development of unique computer simulation tools has profoundly influenced the design and manufacture of silicon chips fuelling the $300 billion per year semiconductor industry. A pioneer of statistical variability research, Professor Asen Asenov developed understanding and awareness of statistical variability in the nanoscale transistors which make up all silicon chips. Gold Standard Simulations (GSS) was created in 2010 and by 2012-13 had grown revenue from services and licensing to $1million. GSS tools are currently used in foundries providing 75% of all semiconductor production for fabless design companies globally. For example, working with GSS and their simulation tools has reduced the development time for IBM's next generation of CMOS technology by 1 year, representing significant savings in the 3-5 year technology development cycle.

Submitting Institution

University of Glasgow

Unit of Assessment

General Engineering

Summary Impact Type

Technological

Research Subject Area(s)

Physical Sciences: Condensed Matter Physics
Information and Computing Sciences: Artificial Intelligence and Image Processing
Engineering: Electrical and Electronic Engineering

Advanced Materials Modelling for Earth and Space Application

Summary of the impact

Research in materials modelling by the Computational Science and Engineering Group (CSEG) is helping aerospace, defence and transport companies design advanced materials and new manufacturing processes. From lightweight components like aeroengine turbine blades to the control of magnetic fields to stabilise the next generation of International Space Station levitation experiments, CSEG is supporting innovations which have:

  • economic impact due to increase in competitiveness, market share, energy cost reduction and better use of raw materials;
  • environmental impact due to new lightweight recyclable materials and reduced energy processes;
  • increased public awareness of the importance of advanced materials and influenced government policy.

In the assessment period, CSEG collaborated closely with leading industries in steel-making (ArcelorMittal, Corus), primary aluminium (Dubal, Rusal, Norsk-Hydro, SAMI) and lightweight structural materials for transport and aerospace (European Space Agency, Rolls-Royce).

Submitting Institution

University of Greenwich

Unit of Assessment

Electrical and Electronic Engineering, Metallurgy and Materials

Summary Impact Type

Technological

Research Subject Area(s)

Chemical Sciences: Inorganic Chemistry
Engineering: Materials Engineering

Light-weighting of automotive and aerospace transport

Summary of the impact

The automotive and aerospace industries are keen to reduce their environmental impact and so have looked to move to lightweight materials. This creates issues in terms of joining, using and disposing of dissimilar materials. Oxford Brookes has therefore worked with national and multi-national companies in the adhesive, materials, automotive and aerospace industries to try to solve these problems. This has resulted in high quality research publications, innovative test equipment, improved numerical methods, novel designs, design guidelines, manufacturing procedures, British Standards, patents, commercial products and further funding. The impact of the work has global safety, environmental and economic benefits with multi-national aerospace and automotive companies implementing the results in current developments.

Submitting Institution

Oxford Brookes University

Unit of Assessment

General Engineering

Summary Impact Type

Technological

Research Subject Area(s)

Engineering: Aerospace Engineering, Civil Engineering, Materials Engineering

The commercial and economic benefits of research at Loughborough into the process simulation, monitoring and control of industrial electronic soldering

Summary of the impact

Publically and industrially funded research at Loughborough University into the simulation, monitoring and control of electronics soldering has had significant impact in the development of new software and hardware technologies, which have delivered substantial commercial and economic benefits, with examples cited for at least two leading companies. One key commercial product is a modelling tool that optimizes reflow oven settings quickly, easily and accurately. It optimises oven settings each time a new product or solder paste is introduced, reducing set up times and scrap levels. More than 700 systems per year continue to be sold, with 90% exported.

Submitting Institution

Loughborough University

Unit of Assessment

Aeronautical, Mechanical, Chemical and Manufacturing Engineering

Summary Impact Type

Technological

Research Subject Area(s)

Information and Computing Sciences: Artificial Intelligence and Image Processing, Information Systems
Engineering: Manufacturing Engineering

18. Improving survivability of protective structures through novel design and modelling

Summary of the impact

The vulnerability of both military and civilian infrastructure to the threat of terrorist activity has highlighted the need to improve its survivability, and this poses a significant design challenge to engineers. Research work at Imperial has led to the development of novel constitutive relationships for polymeric materials coupled to novel analysis procedures; software algorithms for effective simulations of blast and impact events; and enhanced experimental testing methods allowing a fundamental understanding of the structures. According to Dstl, this body of research has `unquestionably improved the security and effectiveness of the UK armed forces operating in hostile environments abroad as well as the safety of citizens using metropolitan infrastructure within the UK'. The techniques have been applied to vehicles and UK infrastructure, including for high profile events, such as the 2012 Olympics.

Submitting Institution

Imperial College London

Unit of Assessment

Aeronautical, Mechanical, Chemical and Manufacturing Engineering

Summary Impact Type

Technological

Research Subject Area(s)

Engineering: Aerospace Engineering, Civil Engineering, Materials Engineering

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