World's Best Scientists 2026 revealed!
Michael J. Brennan

Michael J. Brennan

Award Badge
Mechanical and Aerospace Engineering
Brazil
2026

D-Index & Metrics

Mechanical and Aerospace Engineering

D-Index
70
Citations
18106
World Ranking
390
National Ranking
1

Research.com Recognitions

  • 2026 - Research.com Mechanical and Aerospace Engineering in Brazil Leader Award
  • 2025 - Research.com Mechanical and Aerospace Engineering in Brazil Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Quantum mechanics
  • Electrical engineering
  • Mechanical engineering

His primary scientific interests are in Vibration, Stiffness, Nonlinear system, Structural engineering and Acoustics. His studies in Vibration integrate themes in fields like Wave propagation, Actuator, Control theory and Mathematical analysis. His Stiffness study combines topics in areas such as Isolator, Catenary, Excitation, Mechanical equilibrium and Pantograph.

His research in Nonlinear system focuses on subjects like Linear system, which are connected to Method of averaging and Harmonic oscillator. His Structural engineering study integrates concerns from other disciplines, such as Natural frequency and Vibration isolation. His work carried out in the field of Acoustics brings together such families of science as Phase, Electrical engineering, Electronic engineering and Coherence.

His most cited work include:

  • The Duffing Equation: Nonlinear Oscillators and their Behaviour (382 citations)
  • Static analysis of a passive vibration isolator with quasi-zero-stiffness characteristic (345 citations)
  • Potential benefits of a non-linear stiffness in an energy harvesting device (304 citations)

What are the main themes of his work throughout his whole career to date?

Michael J. Brennan mainly investigates Vibration, Structural engineering, Control theory, Acoustics and Stiffness. His Vibration research focuses on Actuator and how it connects with Transducer. Michael J. Brennan focuses mostly in the field of Structural engineering, narrowing it down to topics relating to Vibration isolation and, in certain cases, Control engineering.

Michael J. Brennan has researched Control theory in several fields, including Vibration control and Active vibration control. In his research on the topic of Acoustics, Energy harvesting is strongly related with Electronic engineering. The study incorporates disciplines such as Isolator and Displacement in addition to Stiffness.

He most often published in these fields:

  • Vibration (36.23%)
  • Structural engineering (26.57%)
  • Control theory (25.60%)

What were the highlights of his more recent work (between 2015-2021)?

  • Vibration (36.23%)
  • Acoustics (23.19%)
  • Nonlinear system (15.46%)

In recent papers he was focusing on the following fields of study:

The scientist’s investigation covers issues in Vibration, Acoustics, Nonlinear system, Structural engineering and Stiffness. His work focuses on many connections between Vibration and other disciplines, such as Beam, that overlap with his field of interest in Boundary value problem and Normal mode. In general Acoustics, his work in Noise is often linked to Water pipe and Leak detection linking many areas of study.

His Nonlinear system research is multidisciplinary, relying on both Mechanics and Transmissibility, Vibration isolation. His Structural engineering study combines topics from a wide range of disciplines, such as Control system, Linear system, Vibration control, Active vibration control and Excitation. His research integrates issues of Isolator and Shaker in his study of Stiffness.

Between 2015 and 2021, his most popular works were:

  • Harvesting energy from the vibration of a passing train using a single-degree-of-freedom oscillator (63 citations)
  • Experimental Investigation of a Two-Stage Nonlinear Vibration Isolation System With High-Static-Low-Dynamic Stiffness (30 citations)
  • On the transmissibilities of nonlinear vibration isolation system (30 citations)

In his most recent research, the most cited papers focused on:

  • Quantum mechanics
  • Electrical engineering
  • Mechanical engineering

His primary areas of investigation include Vibration, Acoustics, Control theory, Nonlinear system and Structural engineering. Michael J. Brennan is interested in Natural frequency, which is a field of Vibration. His study in the field of Noise also crosses realms of Water pipe and Leak detection.

His study in Control theory is interdisciplinary in nature, drawing from both Stiffness coefficient, Jump, Vibration control and Narrowband. His Nonlinear system research includes themes of Vibration isolation and Stiffness. The concepts of his Structural engineering study are interwoven with issues in Excitation, Harmonic and Nonlinear vibration.

Best Publications

  • Static analysis of a passive vibration isolator with quasi-zero-stiffness characteristic

    A. Carrella;M.J. Brennan;T.P. Waters

  • The Duffing Equation: Nonlinear Oscillators and their Behaviour

    Ivana Kovacic;Michael J. Brennan

  • Force and displacement transmissibility of a nonlinear isolator with high-static-low-dynamic-stiffness

    A. Carrella;M.J. Brennan;T.P. Waters;V. Lopes

  • Finite element prediction of wave motion in structural waveguides.

    Brian R. Mace;Denis Duhamel;Michael J. Brennan;Lars Hinke

  • A study of a nonlinear vibration isolator with a quasi-zero stiffness characteristic

    Ivana Kovacic;Michael J. Brennan;Timothy P. Waters

  • On the force transmissibility of a vibration isolator with quasi-zero stiffness

    A. Carrella;M.J. Brennan;I. Kovacic;T.P. Waters

  • Potential benefits of a non-linear stiffness in an energy harvesting device

    R. Ramlan;M. J. Brennan;B. R. Mace;I. Kovacic

  • Finite element analysis of the vibrations of waveguides and periodic structures

    D Duhamel;Brian Mace;MJ Brennan

  • On the design of a high-static-low-dynamic stiffness isolator using linear mechanical springs and magnets

    A. Carrella;M.J. Brennan;T.P Waters;K. Shin

  • On the jump-up and jump-down frequencies of the duffing oscillator

    M.J. Brennan;I. Kovacic;A. Carrella;T.P. Waters

  • A comparison of semi-active damping control strategies for vibration isolation of harmonic disturbances

    Y. Liu;T.P. Waters;M.J. Brennan

  • A model of the correlation function of leak noise in buried plastic pipes

    Y. Gao;M.J. Brennan;P.F. Joseph;J.M. Muggleton

  • Numerical issues concerning the wave and finite element method for free and forced vibrations of waveguides

    Y. Waki;B.R. Mace;M.J. Brennan

  • Wavenumber prediction of waves in buried pipes for water leak detection

    J.M. Muggleton;M.J. Brennan;R.J. Pinnington

  • Analysis of disc brake noise using a two-degree-of-freedom model

    K. Shin;M.J. Brennan;J.-E. Oh;C.J. Harris

  • On the selection of acoustic/vibration sensors for leak detection in plastic water pipes

    Y. Gao;M.J. Brennan;P.F. Joseph;J.M. Muggleton

  • Active vibroacoustic control with multiple local feedback loops.

    Stephen J. Elliott;Paolo Gardonio;Thomas C. Sors;Michael J. Brennan

  • A comparison of time delay estimators for the detection of leak noise signals in plastic water distribution pipes

    Y. Gao;M.J. Brennan;P.F. Joseph

  • Mapping the Underworld – State-of-the-art review

    N Metje;P R Atkins;M J Brennan;D N Chapman

  • A COMPACT MATRIX FORMULATION USING THE IMPEDANCE AND MOBILITY APPROACH FOR THE ANALYSIS OF STRUCTURAL-ACOUSTIC SYSTEMS

    S.M. Kim;M.J. Brennan

Frequent Co-Authors

Brian R. Mace
Brian R. Mace University of Auckland
Stephen J. Elliott
Stephen J. Elliott University of Southampton
Phillip Joseph
Phillip Joseph University of Southampton
Zhigang Liu
Zhigang Liu Southwest Jiaotong University
Paolo Gardonio
Paolo Gardonio University of Udine
Li-Qun Chen
Li-Qun Chen Shanghai University
David Thompson
David Thompson University of Southampton
Andy J. Keane
Andy J. Keane University of Southampton
Christopher D. F. Rogers
Christopher D. F. Rogers University of Birmingham
Eric Rogers
Eric Rogers University of Southampton

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