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

Michael J. Brennan

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Mechanical and Aerospace Engineering
Brazil
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Mechanical and Aerospace Engineering 70 391 351 1 1 429 18106

Michael J. Brennan publications per year

The chart shows the history of publications by Michael J. Brennan between 1970 and 2021, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Michael J. Brennan published across 52 years, from 1970 to 2021, averaging 8.3 papers a year. Output peaked at 30 publications in 2006. 17 of the 431 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1970 to 2021. Vertical axis: number of publications, 0 to 30. Peak 30 publications in 2006. 1970: 1 publication 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 0 publications 1992: 0 publications 1993: 0 publications 1994: 2 publications 1995: 2 publications 1996: 3 publications 1997: 7 publications 1998: 5 publications 1999: 12 publications 2000: 15 publications 2001: 13 publications 2002: 20 publications 2003: 26 publications 2004: 28 publications 2005: 14 publications 2006: 30 publications 2007: 17 publications 2008: 30 publications 2009: 14 publications 2010: 20 publications 2011: 22 publications 2012: 14 publications 2013: 17 publications 2014: 15 publications 2015: 14 publications 2016: 22 publications 2017: 18 publications 2018: 12 publications 2019: 21 publications 2020: 8 publications 2021: 9 publications
1970 2021

431 publications in total across all disciplines

View publications per year as a table
Michael J. Brennan: publications per year, 1970 to 2021
Year Publications
1970 1
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 0
1989 0
1990 0
1991 0
1992 0
1993 0
1994 2
1995 2
1996 3
1997 7
1998 5
1999 12
2000 15
2001 13
2002 20
2003 26
2004 28
2005 14
2006 30
2007 17
2008 30
2009 14
2010 20
2011 22
2012 14
2013 17
2014 15
2015 14
2016 22
2017 18
2018 12
2019 21
2020 8
2021 9
Total 431
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Michael J. Brennan publication distribution in Mechanical and Aerospace Engineering in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mechanical and Aerospace Engineering in 2026. The highlighted bar marks where Michael J. Brennan sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 63 bars. Horizontal axis: publications, 47–56 to 659+. Vertical axis: number of scientists, 0 to 155. Most scientists, 155, have 147–156 publications. The last bar groups every scientist with 659 publications or more. The highlighted bar, 427–436 publications, is where this scientist sits. 47–56 publications: 10 scientists 57–66 publications: 23 scientists 67–76 publications: 32 scientists 77–86 publications: 62 scientists 87–96 publications: 67 scientists 97–106 publications: 91 scientists 107–116 publications: 113 scientists 117–126 publications: 115 scientists 127–136 publications: 130 scientists 137–146 publications: 140 scientists 147–156 publications: 155 scientists 157–166 publications: 132 scientists 167–176 publications: 133 scientists 177–186 publications: 130 scientists 187–196 publications: 140 scientists 197–206 publications: 115 scientists 207–216 publications: 125 scientists 217–226 publications: 117 scientists 227–236 publications: 99 scientists 237–246 publications: 92 scientists 247–256 publications: 100 scientists 257–266 publications: 95 scientists 267–276 publications: 88 scientists 277–286 publications: 77 scientists 287–296 publications: 74 scientists 297–306 publications: 74 scientists 307–316 publications: 62 scientists 317–326 publications: 70 scientists 327–336 publications: 59 scientists 337–346 publications: 58 scientists 347–356 publications: 45 scientists 357–366 publications: 44 scientists 367–376 publications: 36 scientists 377–386 publications: 41 scientists 387–396 publications: 32 scientists 397–406 publications: 23 scientists 407–416 publications: 28 scientists 417–426 publications: 27 scientists 427–436 publications: 25 scientists 437–446 publications: 23 scientists 447–456 publications: 23 scientists 457–466 publications: 20 scientists 467–476 publications: 12 scientists 477–486 publications: 24 scientists 487–496 publications: 18 scientists 497–506 publications: 12 scientists 507–516 publications: 13 scientists 517–526 publications: 21 scientists 527–536 publications: 12 scientists 537–546 publications: 8 scientists 547–556 publications: 16 scientists 557–566 publications: 3 scientists 567–576 publications: 11 scientists 577–586 publications: 6 scientists 587–596 publications: 5 scientists 597–606 publications: 6 scientists 607–616 publications: 7 scientists 617–626 publications: 7 scientists 627–636 publications: 10 scientists 637–646 publications: 4 scientists 647–656 publications: 3 scientists 657–658 publications: 2 scientists 659+ publications: 100 scientists
47–56 publications 659+

This scientist: 429 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 659 publications or more.

View publications distribution as a table
Number of Mechanical and Aerospace Engineering scientists by publication count, Research.com 2026 ranking edition. Based on 3,445 ranked scientists.
Publications Scientists This scientist
47–56 10
57–66 23
67–76 32
77–86 62
87–96 67
97–106 91
107–116 113
117–126 115
127–136 130
137–146 140
147–156 155
157–166 132
167–176 133
177–186 130
187–196 140
197–206 115
207–216 125
217–226 117
227–236 99
237–246 92
247–256 100
257–266 95
267–276 88
277–286 77
287–296 74
297–306 74
307–316 62
317–326 70
327–336 59
337–346 58
347–356 45
357–366 44
367–376 36
377–386 41
387–396 32
397–406 23
407–416 28
417–426 27
427–436 25 429
437–446 23
447–456 23
457–466 20
467–476 12
477–486 24
487–496 18
497–506 12
507–516 13
517–526 21
527–536 12
537–546 8
547–556 16
557–566 3
567–576 11
577–586 6
587–596 5
597–606 6
607–616 7
617–626 7
627–636 10
637–646 4
647–656 3
657–658 2
659+ 100
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Michael J. Brennan D-index placement in Mechanical and Aerospace Engineering in 2026

The chart shows the D-index (discipline H-index) distribution of Mechanical and Aerospace Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where Michael J. Brennan sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 64 bars. Horizontal axis: D-Index, 30 to 93+. Vertical axis: number of scientists, 0 to 189. Most scientists, 189, have 34 D-Index. The last bar groups every scientist with 93 D-Index or more. The highlighted bar, 70 D-Index, is where this scientist sits. 30 D-Index: 83 scientists 31 D-Index: 113 scientists 32 D-Index: 144 scientists 33 D-Index: 153 scientists 34 D-Index: 189 scientists 35 D-Index: 158 scientists 36 D-Index: 139 scientists 37 D-Index: 127 scientists 38 D-Index: 130 scientists 39 D-Index: 126 scientists 40 D-Index: 104 scientists 41 D-Index: 100 scientists 42 D-Index: 107 scientists 43 D-Index: 101 scientists 44 D-Index: 103 scientists 45 D-Index: 79 scientists 46 D-Index: 88 scientists 47 D-Index: 70 scientists 48 D-Index: 83 scientists 49 D-Index: 44 scientists 50 D-Index: 64 scientists 51 D-Index: 56 scientists 52 D-Index: 50 scientists 53 D-Index: 48 scientists 54 D-Index: 58 scientists 55 D-Index: 52 scientists 56 D-Index: 48 scientists 57 D-Index: 42 scientists 58 D-Index: 34 scientists 59 D-Index: 42 scientists 60 D-Index: 37 scientists 61 D-Index: 42 scientists 62 D-Index: 44 scientists 63 D-Index: 22 scientists 64 D-Index: 33 scientists 65 D-Index: 29 scientists 66 D-Index: 23 scientists 67 D-Index: 29 scientists 68 D-Index: 24 scientists 69 D-Index: 19 scientists 70 D-Index: 34 scientists 71 D-Index: 26 scientists 72 D-Index: 19 scientists 73 D-Index: 18 scientists 74 D-Index: 19 scientists 75 D-Index: 14 scientists 76 D-Index: 19 scientists 77 D-Index: 8 scientists 78 D-Index: 18 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 17 scientists 82 D-Index: 11 scientists 83 D-Index: 16 scientists 84 D-Index: 7 scientists 85 D-Index: 9 scientists 86 D-Index: 8 scientists 87 D-Index: 6 scientists 88 D-Index: 6 scientists 89 D-Index: 7 scientists 90 D-Index: 10 scientists 91 D-Index: 4 scientists 92 D-Index: 4 scientists 93+ D-Index: 100 scientists
30 D-Index 93+

This scientist: 70 D-Index — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 93 D-Index or more.

View D-Index distribution as a table
Number of Mechanical and Aerospace Engineering scientists by D-index, Research.com 2026 ranking edition. Based on 3,445 ranked scientists.
D-Index Scientists This scientist
30 83
31 113
32 144
33 153
34 189
35 158
36 139
37 127
38 130
39 126
40 104
41 100
42 107
43 101
44 103
45 79
46 88
47 70
48 83
49 44
50 64
51 56
52 50
53 48
54 58
55 52
56 48
57 42
58 34
59 42
60 37
61 42
62 44
63 22
64 33
65 29
66 23
67 29
68 24
69 19
70 34 70
71 26
72 19
73 18
74 19
75 14
76 19
77 8
78 18
79 16
80 12
81 17
82 11
83 16
84 7
85 9
86 8
87 6
88 6
89 7
90 10
91 4
92 4
93+ 100
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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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