Self-repairing design process applied to a 4-bar linkage mechanism

Date published

2015-08-22

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SAGE

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Article

ISSN

0954-4054

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Citation

Bell C, Farnsworth M, Knowles J, Tiwari A, Self-repairing design process applied to a 4-bar linkage mechanism, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, Vol. 231, Issue 13, 2017, pp. 2291-2301

Abstract

Despite significant advances in modelling and design, mechanical systems almost inevitably fail at some point during their operative life. This can be due to a pre-existing design flaw, which is usually overcome in a revision, or more commonly due to some unexpected damage during operation. To overcome a failure during operation, a new method in designing machines or systems is proposed that creates a result, that is, resilient to both expected and unexpected failure. By shifting the focus from a detailed assessment of the underlying cause of failure to how that failure will manifest, a system becomes inherently resilient against a wide range of failure modes. The proposed process involves five steps: cause, detection, diagnosis, confirmation and correction. This is demonstrated with an application to a generic 4 bar linkage mechanism. Through this process, the system is able to return to a near perfect state even after a permanent deformation occurs in the mechanism. These results show the potential that this self-repairing design process has applications including robotics, manufacturing and other systems.

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Github

Keywords

Self-repairing, Linkage mechanism, Design, Optimisation, Mechanical systems

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©2017 The Authors. Published by SAGE. This is the author accepted manuscript. The final publication is available online at SAGE at http://journals.sagepub.com/doi/10.1177/0954405415598924 Please refer to any applicable publisher terms of use.

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