PhD Studentship in Remote Control of Vortex Induced Vibration University of Southampton, Signal Processing & Control Group

PhD Studentship: Remote control of vortex induced vibration

 

Signal Processing & Control Group

 

Location: Highfield Campus


Closing Date: Friday 10 August 2018


Reference: 919317KR


A fully funded industrial CASE studentship is available for a high quality student to work on the development of novel control methodologies for the control of noise and vibration in maritime structures.

 

High levels of vibration caused by forces induced from vortex shedding as fluid flows over a structural element (so-called Vortex Induced Vibration or VIV) is problematic in a variety of application domains. Probably the best known example of the phenomena was the large scale motion and eventual collapse of the Tacoma Narrows suspension bridge in 1940. VIV is also problematic in the maritime sector and causes both problems in flexible risers in the offshore oil and gas industry and also leads to the singing propeller phenomena. Although avoidance of the problem can be achieved by manipulation of the Strouhal number through careful design of the surface geometry of the structural element it can be difficult to rectify the problem when this materialises through design error or flow regime changes. In this programme the focus will be on developing active control strategies to disrupt the mode lock mechanism that leads to large displacement vibration. Due to the often harsh environment it is difficult to sense and actuate at the point where control is required and so the research challenge is to develop control strategies where the control force and measurements can be applied and taken at some remote point in the interconnected structural chain. The programme will involve both detailed hydrodynamic modelling and the interfacing of CFD codes with control oriented design, modelling and simulation software. The developed simulation environment will be utilised to develop and test the efficacy of both open-loop and closed-loop control strategies.

 

This project is supported by a large industrial collaborator, which provides a wide range of potential opportunities for the successful candidate. In particular, the strong industrial connection helps to ensure that the research will have a direct impact on real-world engineering. This position also benefits from a tax-free stipend of between £17,000 and £20,000 depending on the successful candidate’s previous experience. This includes the standard EPSRC studentship of £14,296 and a top-up from the industrial sponsor. The successful candidate will be based in the Signal Processing and Control Group of the Institute of Sound and Vibration Research but will also benefit from the supervisory support of the Fluid Structure Interactions Group. These are internationally renowned research groups working in the diverse areas of signal processing, active control and marine computational fluid dynamics.

 

If you wish to discuss any details of the project informally, please contact Prof. Steve Daley, (s.daley@soton.ac.uk).

 

To apply, please use the following website: http://www.southampton.ac.uk/engineering/postgraduate/research_degrees/apply.page


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