Search Results - "Sims, N.D."

Energy harvesting from the nonlinear oscillations of magnetic levitation by Mann, B.P., Sims, N.D.

“…This paper investigates the design and analysis of a novel energy harvesting device that uses magnetic levitation to produce an oscillator with a tunable…”
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Analytical prediction of chatter stability for variable pitch and variable helix milling tools by Sims, N.D., Mann, B., Huyanan, S.

“…Regenerative chatter is a self-excited vibration that can occur during milling and other machining processes. It leads to a poor surface finish, premature tool…”
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Sensitivity analysis of an Advanced Gas-cooled Reactor control rod model by Scott, M., Green, P.L., O’Driscoll, D., Worden, K., Sims, N.D.

“…•A model was made of the AGR control rod mechanism.•The aim was to better understand the performance when shutting down the reactor.•The model showed good…”
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THE ELECTRORHEOLOGICAL LONG-STROKE DAMPER: A NEW MODELLING TECHNIQUE WITH EXPERIMENTAL VALIDATION by SIMS, N.D., PEEL, D.J., STANWAY, R., JOHNSON, A.R., BULLOUGH, W.A.

“…Semi-active damping devices offer improved performance over passive devices, without the power requirements or instability problems of fully active devices…”
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The benefits of Duffing-type nonlinearities and electrical optimisation of a mono-stable energy harvester under white Gaussian excitations by Green, P.L., Worden, K., Atallah, K., Sims, N.D.

“…This work is concerned with the performance of a single degree of freedom electromagnetic energy harvester when subjected to a broadband white noise base…”
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Design of adjustable Tuned Mass Dampers using elastomeric O-rings by Tang, N., Rongong, J.A., Sims, N.D.

“…Tuned mass dampers (TMDs) are widely used in passive vibration control, and have been implemented on many engineering structures. In general, the design of…”
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On the identification and modelling of friction in a randomly excited energy harvester by Green, P.L., Worden, K., Sims, N.D.

“…A recent trend in energy harvesting research has been to investigate the potential benefits of deliberately introducing nonlinearities into devices to improve…”
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Rotational degree-of-freedom synthesis: An optimised finite difference method for non-exact data by Gibbons, T.J., Öztürk, E., Sims, N.D.

“…Measuring the rotational dynamic behaviour of a structure is important for many areas of dynamics such as passive vibration control, acoustics, and model…”
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On the orthogonalised reverse path method for nonlinear system identification by Muhamad, P., Sims, N.D., Worden, K.

“…The problem of obtaining the underlying linear dynamic compliance matrix in the presence of nonlinearities in a general multi-degree-of-freedom (MDOF) system…”
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On the performance and resonant frequency of electromagnetic induction energy harvesters by Mann, B.P., Sims, N.D.

“…This paper investigates the linear response of an archetypal energy harvester that uses electromagnetic induction to convert ambient vibration into electrical…”
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Temperature Sensitive Controller Performance of MR Dampers by Batterbee, David, Sims, N.D.

“…Magnetorheological (MR) dampers can experience large temperature changes as a result of heating caused by energy dissipation, but control systems are often…”
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A finite element method for active vibration control of uncertain structures by Morales, A.L., Rongong, J.A., Sims, N.D.

“…This work introduces a fuzzy design method using the finite element procedure to simulate and analyze active vibration control of structures subjected to…”
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Modelling of force–velocity hysteresis in smart fluid dampers by Sims, N.D., Stanway, R.

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An Optimisation Scheme Based on the Local Interaction Simulation Approach and Lamb Waves for Elastic Property Estimation in Multi-Layered Composites by A.B. Spencer, K. Worden, W.J. Staszewski, J.A. Rongong, N.D. Sims

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An Optimisation Scheme Based on the Local Interaction Simulation Approach and Lamb Waves for Elastic Property Estimation in Multi-Layered Composites by A.B. Spencer, K. Worden, W.J. Staszewski, J.A. Rongong, N.D. Sims

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An Optimisation Scheme Based on the Local Interaction Simulation Approach and Lamb Waves for Elastic Property Estimation in Multi-Layered Composites by Spencer, A.B., Worden, K., Staszewski, W.J., Rongong, J.A., Sims, N.D.

“…The paper demonstrates the application of guided ultrasonic waves for estimating material elastic properties in multi-layered composite plates. Two-dimensional…”
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An Optimisation Scheme Based on the Local Interaction Simulation Approach and Lamb Waves for Elastic Property Estimation in Multi-Layered Composites (Erratum) by Spencer, A.B., Worden, K., Staszewski, W.J., Rongong, J.A., Sims, N.D.

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