Research Repository

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Trade-off study of a variation aware determinate wing assembly against a traditional assembly strategy (2018)
Journal Article
Bacharoudis, K., Bakker, O. J., Popov, A., & Ratchev, S. (2018). Trade-off study of a variation aware determinate wing assembly against a traditional assembly strategy. MATEC Web of Conferences, 233, doi:10.1051/matecconf/201823300008

The present study introduces a trade-off framework to evaluate assembly concepts to make informed decisions for aircraft wing structures. This includes (1) the design of the assembly concepts and the estimation of the probability of achieving specifi... Read More

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. (in press). Toward process control from formal models of transformable manufacturing systems. Procedia CIRP, ISSN 2212-8271

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

Variation aware assembly systems for aircraft wings (2016)
Conference Proceeding
Vaughan, D. R., Bakker, O. J., Branson, D. T., & Ratchev, S. (2016). Variation aware assembly systems for aircraft wings. In SAE Technical Paper Seriesdoi:10.4271/2016-01-2106

Aircraft manufacturers desire to increase production to keep up with anticipated demand. To achieve this, the aerospace industry requires a significant increase in the manufacturing and assembly performance to reach required output levels. This work... Read More

Linear friction weld process monitoring of fixture cassette deformations using empirical mode decomposition (2015)
Journal Article
deformations using empirical mode decomposition. Mechanical Systems and Signal Processing, 62-63, doi:10.1016/j.ymssp.2015.02.005. ISSN 0888-3270

Due to its inherent advantages, linear friction welding is a solid-state joining process of increasing importance to the aerospace, automotive, medical and power generation equipment industries. Tangential oscillations and forge stroke during the bur... Read More

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), doi:10.1080/00207543.2012.695893. ISSN 0020-7543

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

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), doi:10.2174/2212797611306020003. ISSN 1874-477X

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