Search Results - "M.J. Brennan"

On the target frequency for harvesting energy from track vibrations due to passing trains by Cleante, V.G., Brennan, M.J., Gatti, G., Thompson, D.J.

“…•Investigation into the railway track vibration with a view to harvesting energy.•Analytical model of the system validated in the time and frequency…”
Get full text

On the design of a high-static–low-dynamic stiffness isolator using linear mechanical springs and magnets by Carrella, A., Brennan, M.J., Waters, T.P, Shin, K.

“…The frequency range over which a linear passive vibration isolator is effective is often limited by the mount stiffness required to support a static load. This…”
Get full text

Finite element analysis of the vibrations of waveguides and periodic structures by Duhamel, D., Mace, B.R., Brennan, M.J.

“…Many structural components can be regarded as waveguides. They are uniform in one direction so that the cross section of the waveguide has the same physical…”
Get full text

On the jump-up and jump-down frequencies of the Duffing oscillator by Brennan, M.J., Kovacic, I., Carrella, A., Waters, T.P.

“…In this paper, simple approximate non-dimensional expressions, and the corresponding displacement amplitudes for the jump-up and jump-down frequencies of a…”
Get full text

A comparison of semi-active damping control strategies for vibration isolation of harmonic disturbances by Liu, Y., Waters, T.P., Brennan, M.J.

“…Active vibration isolation systems are less commonly used than passive systems due to their associated cost and power requirements. In principle, semi-active…”
Get full text

On the dynamic behaviour of the “click” mechanism in dipteran flight by Tang, Bin, Brennan, M.J.

“…In this paper, the dynamic behaviour of the “click” mechanism is analysed. A more accurate model is used than in the past, in which the limits of movement due…”
Get full text

The second Geneva Consensus: Recommendations for novel live TB vaccines by Walker, K.B, Brennan, M.J, Ho, M.M, Eskola, J, Thiry, G, Sadoff, J, Dobbelaer, R, Grode, L, Liu, M.A, Fruth, U, Lambert, P.H

“…Abstract Infection with Mycobacterium tuberculosis continues to be a major public health burden in most developing parts of the world and efforts to develop…”
Get full text

Wave propagation, reflection and transmission in curved beams by Lee, S.-K., Mace, B.R., Brennan, M.J.

“…Wave motion in thin, uniform, curved beams with constant curvature is considered. The beams are assumed to undergo only in-plane motion, which is described by…”
Get full text

Wave propagation, reflection and transmission in non-uniform one-dimensional waveguides by Lee, S.-K., Mace, B.R., Brennan, M.J.

“…Waves can propagate freely without reflection in a certain class of non-uniform one-dimensional waveguides even though the properties of the waveguide vary…”
Get full text

Underpricing, ownership and control in initial public offerings of equity securities in the UK by Brennan, M.J., Franks, J.

“…In this paper we examine how separation of ownership and control evolves as a result of an Initial Public Offering (IPO) and how the underpricing of the issue…”
Get full text

ANALYSIS OF DISC BRAKE NOISE USING A TWO-DEGREE-OF-FREEDOM MODEL by SHIN, K., BRENNAN, M.J., OH, J.-E., HARRIS, C.J.

“…Although a brake pad and disc have many modes of vibration, when it is unstable and hence noisy then frequently only a single mode of the complete system…”
Get full text

Active Vibration Isolation Using an Electrical Damper or an Electrical Dynamic Absorber by Sang-Myeong Kim, Pietrzko, S., Brennan, M.J.

“…This paper describes a theoretical and experimental study to show how an electrical damper or an electrical dynamic absorber, implemented using an…”
Get full text

The nuances of age as an outcome predictor by Higgins, T L, Brennan, M J

Get full text

Designing an adaptive phase II/III trial to evaluate efficacy, safety and immune correlates of new TB vaccines in young adults and adolescents by Rustomjee, R, McClain, B, Brennan, M.J, Mcleod, R, Chetty-Makkan, C.M, McShane, H, Hanekom, W, Steel, G, Mahomed, H, Ginsberg, A.M, Shea, J, Lockhart, S, Self, S, Churchyard, G.J

“…Summary This article summarises the consensus arrived at a meeting of South African and international stakeholders on specific late phase clinical trial design…”
Get full text

Decentralized control for multichannel active vibration isolation by Sang-Myeong Kim, Elliott, S.J., Brennan, M.J.

“…This paper describes a theoretical and experimental investigation into an active four-mount vibration isolation system, in which electromagnetic actuators are…”
Get full text

Active vibration control (AVC) of a satellite boom structure using optimally positioned stacked piezoelectric actuators by Moshrefi-Torbati, M., Keane, A.J., Elliott, S.J., Brennan, M.J., Anthony, D.K., Rogers, E.

“…In this paper, results for active vibration control predicted from experimental measurements on a lightweight structure are compared with purely computational…”
Get full text

On the shock performance of a nonlinear vibration isolator with high-static-low-dynamic-stiffness by Tang, Bin, Brennan, M.J.

“…The vibration isolation characteristics of a high-static-low-dynamic-stiffness (HSLDS) isolator, which has geometrically nonlinear stiffness, have been well…”
Get full text

Acoustic properties of rigid-frame porous materials — an engineering perspective by Brennan, M.J., To, W.M.

“…Sound propagation in rigid-frame porous materials is governed by the effective density and the effective bulk modulus of the fluid in the pore space. These…”
Get full text

Force and displacement transmissibility of a nonlinear isolator with high-static-low-dynamic-stiffness by Carrella, A., Brennan, M.J., Waters, T.P., Lopes, V.

“…Engineers often face the challenge of reducing the level of vibrations experienced by a given payload or those transmitted to the support structure to which a…”
Get full text

On the detailed design of a quasi-zero stiffness device to assist in the realisation of a translational Lanchester damper by Gatti, G., Shaw, A.D., Gonçalves, P.J.P., Brennan, M.J.

“…[Display omitted] •A prototype translational Lanchester damper is studied, designed and tested.•A quasi-zero stiffness suspension is proposed and added in…”
Get full text