Seminars

  • Date Time Venue Speaker Seminar Title Affiliation Abstract
  • Previous Seminars
  • 17/05/2017 14:00 PC-C02 (Portobello) Dr Niloufar Motazedi To Be Determined DRG Group
  • 07/06/2017 14:00 PC-C02 (Portobello) John Mottershead Active Vibration Control: Nonlinear and Aeroelastic Problems University of Liverpool
  • 21/06/2017 14:00 PC-C02 (Portobello) Keith Worden TBD DRG Group
  • 12/07/2017 14:00 Portobello, Design Suite (C02) Rob Barthorpe Model-based Methods for Structural Health Monitoring Dynamics Research Group
  • 06/09/2017 10:30 LT8, The Diamond Various IWSHM mini-symposium Dynamics Research Group Abstract This is an opportunity for members of the group to present their papers in preparation for the International Workshop on Structural Health Monitoring. Papers will be presented by Tianwei Zhang, Nathan Ray, Ramon Fuentes, Tim Rogers and Paul Gardner.
  • 19/10/2017 13:00 LT2, Henry Stephenson Building Tianwei Zhang Treed Gaussian Processes Dynamics Research Group Abstract Mechanical systems while operating are often subject to switching of behaviour due to the change of systematical properties(environment, physical properties, interacting relations and etc). It is common to observe piecewise based behaviours from the system as jointed by these switchings. Such piecewise behaviours require special non-stationary regression techniques for the statistical modelling, which means traditional Gaussian Processes (GP) is generally disqualified. The Treed Gaussian Processes (TGP) is statistical models capable of modelling against the piecewise behaviours and identifying these switchings given the acquired experimental data. Different from the classical TGP model developed by Gramacy, we introduce a new type of TGP based on the very raw idea of Chipman's Bayesian Classification and Regression Trees (BCART), where the inference structure is more straightforward and clear.
  • 02/11/2017 13:00 LT2, Henry Stephenson Building Predaricka Deastra The Application of Fluid Inerter for Vibration Suppression of Civil Structures Dynamics Research Group Abstract Many lightly damped flexible structures suffer from unwanted vibrations. Typically a tuned-mass-damper (TMD) can be used to reduce unwanted vibrations of a specific mode of vibration. The inerter is a novel passive vibration control device offering a wide range of potential applications in engineering practice. It has been analytically proven to be an effective device for controlling unwanted vibrations in structural systems. One of the most effective control strategies employing an inerter is the tuned inerter damper (TID) whose inerter element is connected in series with parallel connected spring-damper. When the inerter element is in parallel with the damper element, it is then called Parallel Viscous Damper Inerter (PVID). In this study, we will introduce a new passive modal vibration control strategy for the PVID based on a fluid inerter combined with a linear spring connected in parallel. The fluid inerter produces inertance by the acceleration of oil inside a helical pipe coiled around the outside of the main fluid chamber. The fluid inerter has both inertance and damping in one device and these properties are coupled to each other. Hence, it is a particular challenge to tune both parameters to t with optimized values resulting from a design analysis. In this study, a new analysis will be presented for this device that demonstrates how the PVID with a fluid inerter can be modelled to achieve the targeted parameters.
  • 16/11/2017 13:00 LT2, Henry Stephenson Building Haichen Shi An Introduction to Summer Internship at the Alan Turing Institute - “Improving Renewable Energy Modelling & Forecasting” Dynamics Research Group Abstract Haichen will present a short talk on his experience of the summer intern program at the Alan Turing Institute, UK’s national institute for data science. This talk will consist of three main sections: 1. Introduction to the Alan Turing Institute, including overview of their current ongoing research programs, and their future visions; 2. Introduction to the summer intern project, which is in collaboration with the National Grid to provide better and more accurate forecasts of the nation’s renewable energy generations; 3. Introduction to some opportunities the Turing Institute can provide for both academics and students.
  • 30/11/2017 13:00 LT2, Henry Stephenson Building Giulio Dolcetti TBC Dynamics Research Group
  • 14/12/2017 13:00 LT2, Henry Stephenson Building Dr Andrea Cammarano Reduced order models for dynamical problems in engineering. University of Glasgow Abstract Despite the increase in computational capabilities, in the last decades it has become evident that high-order models of complex systems cannot always be used for practical applications. This is mainly due to the running time and the computational power that high-order models require. In addition, the need of real-time simulations that can be used to improve control strategies and achieve automatization has led many fields of engineering toward reduced order modelling. “Reduced order modelling” is a common name for a variety of approaches and techniques which are quite different from one another. This talk will explore some of the approaches to reduced order modelling and highlight the similarities and the differences between the associated methodologies. Also, it will highlight the differences between the use of reduced order models in linear and nonlinear dynamical system and will discuss risks and advantages of these techniques.
  • Upcoming Seminars:
  • 21/02/2018 13:00 LT7, The Diamond Dr Rafael Palacios TBC Department of Aeronautics, Imperial College London
  • 08/03/2018 13:00 LT7, The Diamond TBC TBC_08-01

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