Manufacturing Fellowship Extension in: Controlling geometrical variability of products in the digital and smart manufacturing era

Lead Research Organisation: University of Huddersfield
Department Name: Sch of Computing and Engineering

Abstract

This fellowship proposal is a three year extension of the current EPSRC manufacturing fellowship: Controlling Geometrical Variability of Products for Manufacturing (EP/I033424/1). The current fellowship is exploring the mathematical fundaments for the decomposition of geometry (i.e. size, shape and texture) and creating ground-breaking technology to control geometrical variability in manufactured products. The approach links fundamental geometrical mathematics direct to key component's design, manufacturing and verification from different industrial sectors (i.e. aerospace, optics, healthcare and catapult centres). In this case, the different types of geometrical decompositions specified geometrical surface requirements (spectrum, morphological and segmentation decompositions).
The fellowship extension proposal will take the research results from the current fellowship and use them as a stepping stone for more advanced fundamental research in new areas within the manufacturing value chain. The research work is broken down to four aspects:
1. Different aspects of the manufacturing process leave different multi-scalar geometrical features, in a surface, at different scales (i.e. size, shape and texture). By decomposing these different signature features, information regarding different manufacturing aspects can be gained enabling characterisation and control of different aspects of the manufacturing process.

2. Sensor network provide information in the form of an irregular image, like a cubist painting, with different views, and times, of the environment all combined together. Decomposition of this information will provide access to features, and their relationships enabling an agile dynamic predictive model to be self-aware of its environment enabling mathematical foundations for bio-inspired feedback control loops from sensor networks to be developed.

3. Smart autonomous manufacturing will require access to the huge amassed manufacturing knowledge-base (National and International Standards, Materials data-sheets, etc.). Create the foundations of decomposition of information structures for the automatic creation of smart information systems that are machine readable and to apply this result to develop the full rigorous mathematical foundations for the manufacturing value chain.

4. Using the EPSRC Future HUB in Advanced Metrology (EP/P006930/1) as leverage, disseminate the results from the above to solve real industrial problems to demonstrate the advantage of using fundamental decomposition theory, as developed in the previous manufacturing fellowship and this extension, over traditional approaches.

Planned Impact

Academic community: Decomposition is the technique behind analysis: the process of breaking a complex topic into smaller parts in order to gain a better understanding of it. This approach is universal in academia, particularly STEM subjects. By providing a universal framework for decomposition, it is believed this will encourage cross fertilisation between many academic fields: growing knowledge and understanding in all the subject areas. Of particular importance is the decomposition of:
1) knowledge structures. The creation of smart information systems, within a particular academic field, will certainly increase the academic productivity within each field and encourage novel and enhanced teaching, from schools to PhDs.
2) bio-inspired feedback control loops from sensor networks. Control underpins most cyber-physical systems related research (e.g. smart buildings, structures and cities, next generation advanced nuclear manufacture and operations etc.). Decomposition of the sensor network information into features and patterns for control will also provide a foundation for such systems to achieve system level autonomous control.

Industry sectors: Using the EPSRC Future HUB in Advanced Metrology (EP/P006930/1) as leverage together with other HUBs and catapult centres, the research results will be disseminated to enhance the solution of real industrial problems across a range of industry sectors including: aerospace, automotive, bio-medical, electronics, energy generation, instruments & sensors, optics, and wider precision engineering. The improvements in design, manufacturing and verification capabilities will enable maximum improvements in manufacturing productivity, capability, quality and cost.

Embedded sensor networkss, metrology-driven control, and semantic systems can all be applied to other academic fields, where metrology-driven autonomous systems can also be generated allowing efficiencies in design, cost and performance

Policy makers and public corporations: The fellowship extension will also have an input into the Hub acting as a national focal point for Advanced Metrology and influence policy-makers through the national measurement strategy and manufacturing metrology standardisation.

Timescales
Short-term: By continuing the underlying research and exploring new approaches to this research, it is envisaged a new generation of decomposition-driven technologies will be delivered quickly. Collaborating companies will quickly assimilate the novel technologies, techniques and processes. Knowledge transfer activities, including metrology training, will also see significant industry benefits in skills development and decomposition best practice.

Medium term: The standardisation of the fundamental toolbox of practical advanced decomposition techniques. Within the British standards institute, the PI is convenor of committees TDW4/-/3. Here the results from the fellowship extension will be made available for national standardisation, which will help UK industry have a priority in using them. Further, it can finally propose to be a new ISO technical specification which can be published quickly for a wide range of industries to try out. Three years after publication technical specifications are reviewed and if found acceptable converted into full ISO standards.

Long-term: The potential impact of the research for the economic competitiveness of the UK is substantial and will facilitate integrated, digitalised and autonomous manufacturing. The UK will see greater productivity and efficiency, an increase in GVA contributions and a much higher skilled sector as a direct result of the extended fellowship: further developing UK manufacturing.

Publications

10 25 50
 
Description 1/ Developed surface texture analytics for triangular mesh data. Have written and currently writing software modules to implement these research results into commercial software (digital surf mountains map)..
2/ Developed a semantic hierarchical model for senor nets. Will incorporate this into CSL code.
3/ Developing Category Semantic Language (CSL). Currently being beta tested by NIST USA. Next stage develop graphical interfaces for different applications
4/ Developing Case Study with Milan Polytechnic for optimising a sensor net for a real sensor net (Large Swedish Furniture manufacturer)
5/ Developing Case Study with ISO TC/213 to restructure the Geometrical Product Standards into a semantic structure that is machine readable for future AI systems.
Exploitation Route 1/ Triangular mesh analytics will form the basis of future ISO standards in ISO TC/213 Geometrical Product Specification and Verification;.
2/ Sensor net model has been developed for Smart manufacturing particularly autonomous manufacturing: Case study with Milan Polytechnic;
3/ CSL is also being developed for AI ready documants for use with AI systems. This is to capture human knowledge in a semantic structured way for utility by AI systems. Case study with ISO TC213.
4/ How the latest measurement theory and technologies, underpin zero waste and carbon neutral smart manufacturing growth and productivity
Sectors Aerospace, Defence and Marine,Digital/Communication/Information Technologies (including Software),Education,Energy,Environment,Manufacturing, including Industrial Biotechology

 
Description The developed extend measurement theory and technologies are starting to underpin zero waste and carbon neutral smart manufacturing growth and productivity (i.e. what sort of new metrology theory is required for sustainability).
First Year Of Impact 2022
Sector Aerospace, Defence and Marine,Energy,Environment,Manufacturing, including Industrial Biotechology,Transport
Impact Types Societal,Economic,Policy & public services

 
Title Abstraction and Category Semantic Language 
Description Creative use of the Concept of Abstraction for Advanced Metrology and other research areas. The current highest level of abstraction in Mathematics is Category Theory. A Category Semantic Language has been developed to model these abstraction hierarchical structures and is a new software language for smart semantic hierarchy structure applications and uses category theory at a high semantic level. It models semantic structures where: static structure are the nouns in the language and dynamic information flows are the verbs. These are put into an hierarchical structure where each level is at the same abstraction level and higher levels are abstracted versions of lower abstraction levels. Hybrid delta lens (category theory) are used model the information flows between one abstraction level to another level. 
Type Of Material Improvements to research infrastructure 
Year Produced 2021 
Provided To Others? Yes  
Impact Together with Milan University used these smart abstraction hierarchical structures to model a digital twin model for an assembly line, improving computational speed and reduced the number of sensors required. Together with NIST USA, this technique is being used to model the structure of the ISO GPS system (over 150 ISO documents) together with the concept of future smart ISO documents. A proposition document has been presented to ISO TC/213 in September 2022 and a special talk to the whole of ISO TC/213 on Friday 3rd May at BSI Chiswich London. I have also researched the structures of documents (paper, electronic, XPL, etc.) and proposed a new abstracted structure for all based on three pillars to be used for future smart documents. The three pillars are 1) content - text, figures, other information structures, and the flow of information between all within a document; 2) labelling the content for identification - page numbers, chapter and verse, labelling structures and flow structures; 3) quick access to content - chapter names and locations, indexes and locations, search engines, query languages, smart knowledge graphs, smart interpretation queries, etc. This is being researched for next generation 'smart documents'. This structure of documents goes well beyond traditional documents to: for example sensor nets and whole system models. 
 
Title Metrology decomposition and semantic labelling 
Description The future of metrology is decomposition: decomposition of measurement data into stable and robust features (both numerical and semantic decomposition) followed by possible semantic labelling of those feature (through their attributes and relationships between features). This will ensure smart AI systems can: read, query, and interpret the original measured data. A Key-Note presentation and paper was presented at the CIRP 2021 summer conference. 
Type Of Material Improvements to research infrastructure 
Year Produced 2021 
Provided To Others? Yes  
Impact DigitalSurf (France) (World leading surface texture software) and Taylor Hobson (UK) (World leading surface texture instrument manufacturer) have both developed products based on the concepts developed. 
 
Description Digitalsurf software 
Organisation Digital Surf
Country France 
Sector Private 
PI Contribution Developing software modules for their mountains software package. In particular analytics on triangular mesh structures for freeform geometries. This include best fit form algorithms, filtration algorithms and characterisation parameters for freeform surface texture. All this has resulted from research developed from the EPSRC fellowships. Currently their software deals with lattice of heights on a planar surface. Have now moved to phase two to cover more software modules.
Collaborator Contribution They are providing a commercial framework (Mountains software package) to market our software modules.
Impact The first phase of this collaboration was launched in May 2020. Phase two has already begun.
Start Year 2019
 
Description International Standards Organisation Technical Committee 213 - Geometrical Product Specifications and Verification 
Organisation International Standards Organization
Country Switzerland 
Sector Charity/Non Profit 
PI Contribution Provided the mathematical hierarchical structure to model the semantic structure of the GPS system and the semantic language to describe it and the rules for stability and consistency (Category Semantic Language). Further we have 15 years experience in researching and developing such models. Presented a position document to ISO TC/213 to move the ISO GPS system forward to the smart era. Gave a public presentation to ISO TC/213 (Friday 3rd March 2023) based on the position document.
Collaborator Contribution Provided the domain knowledge to be incorporated into the hierarchical model and to make sure that it is still usage by humans as well as AI systems.
Impact ISO TC/213 held a meeting (Thursday 9th March 2023) to plan the way forward, based on the position document and public talk.
Start Year 2021
 
Description Milan Polytechnic 
Organisation Polytechnic University of Milan
Country Italy 
Sector Academic/University 
PI Contribution Providing the mathematical hierarchical structure to model the assembly line and the sensor nets it contains.
Collaborator Contribution Brought the original problem (to which they were asked to solve by the company with the problem) to the project. Traditional ontology approached to solve the problem did not contain a full structure to obtain a solution Also they bring domain expertise to help build the appropriate model to optimise the placing and number of sensors in the sensor net.
Impact Paper presented for CIRP summer 2022 meeting (via Zoom) Paper published in the proceedings of the Royal Society A, 2022
Start Year 2021
 
Description NIST Gaitherburg USA 
Organisation National Institute of Standards & Technology (NIST)
Country United States 
Sector Public 
PI Contribution Developed a Category Semantic Language (CSL)for smart databases. This is a high level language all other category languages are at a very low level
Collaborator Contribution NIST have their own category query language but at a very low level. They are testing our beta version of CSL by first understanding the new concepts in CSL, second trying out case studies to test the correctness of the language and thirdly advising on suitable interfaces for CSL for different applications.
Impact Too early for outcomes
Start Year 2019
 
Title Triangular mesh analytics software and book 
Description New analytics for Freeform geometries using triangular mesh. This includes: 1/ best fitting freeform geometry algorithms; 2/ Filtration algorithms - PDE based filtration methods, segmentation and morphological filters; 3/ Surface texture characterisation parameters calculated from a triangular mesh 
IP Reference  
Protection Trade Mark
Year Protection Granted 2019
Licensed Yes
Impact Phase I of the software was released in Oct 2020 to Digital Surf for their Mountains Map surface texture analytics package (the worlds leading surface texture analytics software). This takes the package to another dimension going from the analysis of planar measurement data to true 3D measured data. We have a commercial agreement between Digital surf and the University with a road-map of future research and associated software releases. Phase II of the software release is currently underway. Book entitled: "Advanced Metrology - Freeform Surfaces" has been published by Academic Press, ISBN 978-0-12-821815-0 in 2021. Co-authored by X. Jane Jiang and Paul J. Scott. This book was released in conjunction with the above software.
 
Title Triangular mesh analytics software 
Description Software modules for Digitalsurf mountains map for surface texture analytics on trinagular meshes. 
Type Of Technology Software 
Year Produced 2020 
Impact Phase I of the software was released in Oct 2020 to Digital Surf for their Mountains Map surface texture analytics package (the worlds leading surface texture analytics software). This takes the package to another dimension going from the analysis of planar measurement data to true 3D measured data. We have a commercial agreement between Digital surf and the University with a road-map of future research and associated software releases. 
 
Description International Standards 
Form Of Engagement Activity A formal working group, expert panel or dialogue
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact I take active part in ISO TC213 (geometrical product specification). I am convener of two working groups WG15 (filtration and extraction) and AG12 (mathematics for GPS). I am also an active member (UK principle expert) of WP16 (surface texture). I am a member of TC213's strategic board (AG1) and its final editing board AG2). I have been project leader of 23 ISO standards.
Year(s) Of Engagement Activity 2018,2019,2020,2021,2022,2023