All Outputs (12)

Advanced Assembly Solutions for the Airbus RACER Joined-Wing Configuration (2019)
Conference Proceeding
Bainbridge, D., Bacharoudis, K., Cini, A., Turner, A., Popov, A., & Ratchev, S. (2019). Advanced Assembly Solutions for the Airbus RACER Joined-Wing Configuration

The Rapid And Cost Effective Rotorcraft (RACER) is being developed by Airbus Helicopters (AH) to demonstrate a new Vertical TakeOff and Landing configuration to fill the mobility gap between conventional helicopters and aeroplanes. RACER is a compoun... Read More about Advanced Assembly Solutions for the Airbus RACER Joined-Wing Configuration.

Composite capabilities for cloud manufacturing (demonstration) (2018)
Conference Proceeding
Felli, P., de Silva, L., Logan, B., & Ratchev, S. (2018). Composite capabilities for cloud manufacturing (demonstration).

Process Plan Controllers for Non-Deterministic Manufacturing Systems (2017)
Conference Proceeding
Felli, P., De Silva, L., Logan, B., & Ratchev, S. (2017). Process Plan Controllers for Non-Deterministic Manufacturing Systems. In Proceedings of the Twenty-Sixth International Joint Conference on Artificial Intelligence (1023-1030). https://doi.org/10.24963/ijcai.2017/142

Determining the most appropriate means of producing a given product, i.e., which manufacturing and assembly tasks need to be performed in which order and how, is termed process planning. In process planning, abstract manufacturing tasks in a process... Read More about Process Plan Controllers for Non-Deterministic Manufacturing Systems.

Toward process control from formal models of transformable manufacturing systems (2017)
Journal Article
Bakker, O. J., Chaplin, J. C., de Silva, L., Felli, P., Sanderson, D., Logan, B., & Ratchev, S. (2018). Toward process control from formal models of transformable manufacturing systems. Procedia CIRP, 63, 521-526. https://doi.org/10.1016/j.procir.2017.03.159

The automation and flexibility of production systems is a key step towards improved profitability and competitiveness in high labour cost areas, when producing high-complexity, low-volume products. In the Evolvable Assembly Systems (EAS) project, the... Read More about Toward process control from formal models of transformable manufacturing systems.

Variation analysis of automated wing box assembly (2017)
Journal Article
Bakker, O. J., Popov, A. A., & Ratchev, S. M. (2017). Variation analysis of automated wing box assembly. Procedia CIRP, 69, 406-411. https://doi.org/10.1016/j.procir.2017.02.034

Manufacturing process variability is a major issue of concern in high value industries. Manufacturing small batches and in some cases batches of one is a very expensive process with specific requirements for manufacturing operations, tooling and fixt... Read More about Variation analysis of automated wing box assembly.

Synthesising industry-standard manufacturing process controllers (2017)
Conference Proceeding
de Silva, L., Felli, P., Chaplin, J. C., Logan, B., Sanderson, D., & Ratchev, S. (2017). Synthesising industry-standard manufacturing process controllers. In Proceedings of the 16th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2017) (1811-1813)

Flexible robot sealant dispensing cell using RGB-D sensor and off-line programming (2017)
Journal Article
Maiolino, P., Woolley, R., Branson, D. T., Benardos, P., Popov, A. A., & Ratchev, S. (in press). Flexible robot sealant dispensing cell using RGB-D sensor and off-line programming. Robotics and Computer-Integrated Manufacturing, 48, https://doi.org/10.1016/j.rcim.2017.04.004

In aerospace manufacture the accurate and robust application of sealant is an integral and challenging part of the manufacturing process that is still performed by human operator. Automation of this process is difficult and not cost effective due to... Read More about Flexible robot sealant dispensing cell using RGB-D sensor and off-line programming.

Realisability of production recipes (2016)
Conference Proceeding
de Silva, L., Felli, P., Chaplin, J. C., Logan, B., Sanderson, D., & Ratchev, S. (2016). Realisability of production recipes. In ECAI 2016 - 22nd European Conference on Artificial Intelligence (1449-1457). https://doi.org/10.3233/978-1-61499-672-9-1449

There is a rising demand for customised products with a high degree of complexity. To meet these demands, manufacturing lines are increasingly becoming autonomous, networked, and intelligent, with production lines being virtualised into a manufacturi... Read More about Realisability of production recipes.

Apparent beam size definition of focused ion beams based on scanning electron microscopy images of nanodots (2015)
Journal Article
Vladov, N., Segal, J., & Ratchev, S. (2015). Apparent beam size definition of focused ion beams based on scanning electron microscopy images of nanodots. Journal of Vacuum Science and Technology B Microelectronics and Nanometer Structures, 33, Article 041803. https://doi.org/10.1116/1.4926388

In this paper the new term apparent beam size of Focused Ion Beam (FIB) is introduced and an original method of its evaluation is demonstrated. Traditional methods of measuring the beam size, like the knife edge method, provide information about the... Read More about Apparent beam size definition of focused ion beams based on scanning electron microscopy images of nanodots.

Active fixturing: literature review and future research directions (2013)
Journal Article
Bakker, O. J., Papastathis, T., Popov, A. A., & Ratchev, S. (2013). Active fixturing: literature review and future research directions. International Journal of Production Research, 51(11), https://doi.org/10.1080/00207543.2012.695893

Fixtures are used to fixate, position and support workpieces and represent a crucial tool in manufacturing. Their performance determines the result of the whole manufacturing process of a product. There is a vast amount of research done on automatic... Read More about Active fixturing: literature review and future research directions.

Recent research on flexible fixtures for manufacturing processes (2013)
Journal Article
Bakker, O. J., Papastathis, T., Ratchev, S., & Popov, A. A. (2013). Recent research on flexible fixtures for manufacturing processes. Recent Patents on Mechanical Engineering, 6(2), https://doi.org/10.2174/2212797611306020003

Fixtures, are used to fixate, position and support workpieces, and form a crucial tool in manufacturing. Their performance influences the manufacturing (and assembly) process of a product. Furthermore, fixturing can form a significant portion of the... Read More about Recent research on flexible fixtures for manufacturing processes.

Focused ion beam milling of brass for microinjection mould fabrication
Conference Proceeding
Vladov, N., Ratchev, S., & Segal, J. Focused ion beam milling of brass for microinjection mould fabrication.

In this paper focused ion beam (FIB) milling (sputtering) is demonstrated for the fabrication of brass microinjection moulding inserts which have been previously conventionally milled. It is found that FIB milling of the α phase of the material resul... Read More about Focused ion beam milling of brass for microinjection mould fabrication.