Dr Tom Hill
BEng(Bristol), PhD (Bristol)
Expertise
I'm interested in the vibration of nonlinear mechanical systems, which don’t have the useful properties associated with linear systems due to their high flexibility, large vibration amplitudes or complex structural properties.
Current positions
Contact
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Research interests
My research interests are primarily in the field of nonlinear structural dynamics.
Motivation: The high-performance engineering industry is driven by the need for greater performance. Increasingly, this may only be achieved by designing structures to operate beyond the regimes where linearity can be assumed, and nonlinear behaviour must be accounted for. My research is motivated by the need to understand the effect of nonlinearity in engineering structures, and how it may be accounted for in the design process. My specific interests include nonlinear modelling and simulation, nonlinear modal interactions, and nonlinear system identification.
Nonlinear modelling and simulation: The useful properties of linear structures, such as modal orthogonality and superposition, cannot be extended to nonlinear systems. As such, many of the established techniques for linear models cannot be extended to nonlinear systems. My research includes the use of a variety of analytical and numerical techniques for nonlinear modelling and simulation.
Nonlinear modal interactions: Nonlinearity can lead to a variety of behaviour that is not seen in linear systems. This aspect of my research involves developing an understanding of the physical mechanisms that drive these behaviours.
Nonlinear system identification: A key step in the design and testing of engineering structures is the development of mathematical models describing the structures. Nonlinear system identification describes the process of generating nonlinear models based on experimental testing of a system. My research in this area includes the development of novel methods for the identification of nonlinear systems.
Projects and supervisions
Research projects
Multidomain Synthesis for New Concept Hydraulic and In-Wheel Motor Suspension Systems
Principal Investigator
Role
Co-Investigator
Managing organisational unit
Department of Mechanical EngineeringDates
01/10/2021 to 30/09/2024
Robotic Prostate cancer diagnosis/treatment
Principal Investigator
Role
Co-Investigator
Description
Modelling and development of robotic tools and simulator for biopsy and treatment of prostate cancer (for Brachytherapy and LATP - local anaesthetic transperineal biopsy)Managing organisational unit
Department of Mechanical EngineeringDates
01/01/2020 to 31/10/2023
Publications
Recent publications
29/05/2023Development and Experimental Verification of a 3D Dynamic Absolute Nodal Coordinate Formulation Model of Flexible Prostate Biopsy/Brachytherapy Needles
Ensuring the Accuracy of Indirect Nonlinear Dynamic Reduced-Order Models
Nonlinear Dynamics
Isola in a linear one-degree-of-freedom feedback system with actuator rate saturation
International Journal of Mechanical System Dynamics
Modelling and real-time dynamic simulation of flexible needles for prostate biopsy and brachytherapy
Mathematical and Computer Modelling of Dynamical Systems
Reduced order model-inspired system identification of geometrically nonlinear structures
Nonlinear Dynamics