PhD Studentship: Nonlinear Dynamics Vibration Attenuation: Shock and Vibration Mitigation in Rotary Steerable Tools

The project starts with a literature review on shock and vibration mitigation techniques in rotary steerable tools and similar downhole systems to establish the current state of the art and identify knowledge gaps. The project involves both linear and nonlinear dynamics modelling and analysis, as well as experimental testing. An equivalent test structure will first be constructed in the vibration laboratory at Swansea University. This demonstrator will closely replicate the industrial structure to ensure the relevance of the research undertaken in this PhD study. A major aspect of the work is the development of optimal passive mitigation solutions through the enhancement of components such as elastomers. These elements will be selected and optimised to absorb and isolate shock and vibration while remaining functional under harsh geothermal conditions. The candidate is expected to work closely with D-TECH and may undertake a secondment period to test and apply the developed methods on industrial-scale structures. This highly interdisciplinary project combines mechanical engineering, materials science, and control systems, and will require both numerical simulation and experimental validation. The outcomes of this research aim to significantly enhance the reliability, efficiency, and operational lifespan of RSTs in geothermal applications, thereby supporting the advancement of sustainable energy technologies.

Applications may be submitted in Welsh and any application submitted in Welsh will be treated no less favourably than an application submitted in English. Please refer to the University’s Welsh Language Policy on Awarding Grants.

Funding 

Covers full tuition, £21,805 stipend (2026/27), plus up to £1,000 yearly for research costs.

Advert information