PhD Studentship in Structural Dynamics
Post Status: Full Time – 4 Years
Research Group / Department / School: School of Engineering, Trinity College Dublin, the University of Dublin
Location: Museum Building, Trinity College Dublin, the University of Dublin College Green, Dublin 2, Ireland
Reports to: John Hickey
Terms & Conditions:
• PhD Stipend of €25,000 per annum
• Must agree to participate in the pilot rollout of Trinity’s Supervisor: Research Student Agreement.
• Start in September 2025
Hours of Work: 37.5 hours per week
NOTE: Applicants must have been resident in an EU member state for 3 out of the last 5 years to be eligible for EU fees
Post Summary
The Department of Civil, Structural and Environmental Engineering at Trinity College Dublin (TCD) are seeking a PhD student in Structural Dynamics examine the design of Inerter devices for use in Offshore Wind Turbines (OWTs).
To meet increasing demands for low-cost renewable energy, OWTs are becoming increasingly tall and being moved farther offshore in search of stronger winds. However, this means that the structural design becomes more complicated as these new OWTs are required to operate in harsher environments, and due to their slender and lightweight nature, they are susceptible to excessive vibration which can cause sub-optimal performance or damage. Typically in structural engineering such vibration problems can be overcome using supplementary damping devices, which essentially involves the addition of extra mass to the structure. However this is impractical for high-performance structures like offshore wind turbines, meaning they face significant structural design obstacles that will limit deployment if left unresolved.
One potential solution to this challenge that has received academic attention in recent years is the use of inerter devices. An inerter is a mechanical device that can act as a vibration absorber, in a similar manner to more classical damping devices. However, inerters can potentially achieve similar levels of vibration suppression at a much-reduced mass. This is potentially beneficial for applications where there is a need to keep mass low, meaning they represent a promising technology for OWTs.
Despite this promise, if inerters are to go from a conceptual idea to widespread application, there is a need for more representative experimental investigation, improved numerical modelling and further design optimization. In this project, the PhD Student will address this by undertaking a combination of experimental testing and numerical modelling. The ultimate aim is to use these tests and models is to inform the optimal design of inerter devices for OWTs
Standard Duties and Responsibilities of the Post
The appointed applicants will undertake academic research under the direction of the PI. These will include development of state-of-the-art numerical models, planning, managing and implementing an experimental testing campaign and liaising with technical staff as well as dissemination of research outputs.
Funding Information
This project is funded for 4 years by the Trinity Research Doctorate Research Award 2025-26. The award covers PhD fees (EU or non-EU) and a stipend of €25,000 per annum.
Person Specification
Qualifications
Excellent academic performance and grades at undergraduate level and/or Master’s level is considered essential