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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Mechanical and Aerospace Engineering 30 3409 3204 248 224 169 3255

Ramin Rahmani publications per year

The chart shows the history of publications by Ramin Rahmani between 2003 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ramin Rahmani published across 23 years, from 2003 to 2025, averaging 7.8 papers a year. Output peaked at 20 publications in 2018. 8 of the 179 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 2003 to 2025. Vertical axis: number of publications, 0 to 20. Peak 20 publications in 2018. 2003: 2 publications 2004: 7 publications 2005: 6 publications 2006: 10 publications 2007: 2 publications 2008: 5 publications 2009: 9 publications 2010: 9 publications 2011: 4 publications 2012: 7 publications 2013: 9 publications 2014: 6 publications 2015: 10 publications 2016: 12 publications 2017: 17 publications 2018: 20 publications 2019: 5 publications 2020: 9 publications 2021: 4 publications 2022: 6 publications 2023: 12 publications 2024: 4 publications 2025: 4 publications
2003 2025

179 publications in total across all disciplines

View publications per year as a table
Ramin Rahmani: publications per year, 2003 to 2025
Year Publications
2003 2
2004 7
2005 6
2006 10
2007 2
2008 5
2009 9
2010 9
2011 4
2012 7
2013 9
2014 6
2015 10
2016 12
2017 17
2018 20
2019 5
2020 9
2021 4
2022 6
2023 12
2024 4
2025 4
Total 179
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Ramin Rahmani 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 Ramin Rahmani 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, 167–176 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: 169 publications — 32nd percentile

32% 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
167–176 133 169
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
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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Ramin Rahmani 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 Ramin Rahmani 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, 30 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: 30 D-Index — 2nd percentile

2% 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 30
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
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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Overview

Ramin Rahmani is affiliated with Loughborough University in the United Kingdom and specializes in the field of engineering, with a strong focus on mechanical engineering. Their research predominantly covers subfields such as mechanical engineering, mechanics of materials, fluid flow and transfer processes, automotive engineering, and biomedical engineering.

Their main research topics include:

  • Tribology and lubrication engineering
  • Gear and bearing dynamics analysis
  • Adhesion, friction, and surface interactions
  • Lubricants and their additives
  • Tribology and wear analysis
  • Mechanical engineering and vibrations research
  • Advanced combustion engine technologies

Ramin Rahmani has contributed to a range of recent publications, including:

  • An analytical friction model for point contacts subject to boundary and mixed elastohydrodynamic lubrication, 2024, Tribology International
  • Non-Newtonian Thermo-Elastohydrodynamics and Sub-Surface Stress Field of High-Performance Racing Spur Gears, 2022, Lubricants
  • The effect of outer ring elastodynamics on vibration and power loss of radial ball bearings, 2020, Proceedings of the Institution of Mechanical Engineers Part K Journal of Multi-body Dynamics
  • An efficient analytical approach to assess root cause of nonlinear electric vehicle gear whine, 2022, Nonlinear Dynamics
  • Current and Future Trends in Tribological Research, 2023, Lubricants

Frequent publication venues for Rahmani include:

  • Tribology International
  • Lubricants
  • Proceedings of the Institution of Mechanical Engineers Part K Journal of Multi-body Dynamics
  • Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering
  • Journal of Tribology

Throughout their career, Rahmani has collaborated extensively with several co-authors, including:

  • Homer Rahnejat
  • Nader Dolatabadi
  • Nicholas J. Morris
  • Gajarajan Sivayogan
  • Matthew Simpson

Their work broadly addresses areas critical to the understanding and advancement of tribology, lubrication, gear and bearing dynamics, and related engineering challenges. Rahmani's research outputs contribute to both theoretical models and applied analysis relevant for mechanical systems, particularly within automotive and mechanical engineering domains.

Best Publications

  • Tribology of piston compression ring conjunction under transient thermal mixed regime of lubrication

    Nicholas J. Morris;Ramin Rahmani;Homer Rahnejat;P.D. King

  • An analytical approach for analysis and optimisation of slider bearings with infinite width parallel textures

    Ramin Rahmani;Iraj Mirzaee;Ayoub Shirvani;Hassan Shirvani

  • Optimization of Partially Textured Parallel Thrust Bearings with Square-Shaped Micro-Dimples

    Ramin Rahmani;Ayoub Shirvani;Hassan Shirvani

  • The effect of cylinder liner operating temperature on frictional loss and engine emissions in piston ring conjunction

    Ramin Rahmani;Homer Rahnejat;Brian Fitzsimons;D. Dowson

  • Transient elastohydrodynamic lubrication of rough new or worn piston compression ring conjunction with an out-of-round cylinder bore:

    Ramin Rahmani;Stephanos Theodossiades;Homer Rahnejat;Brian Fitzsimons

  • In-cycle and life-time friction transience in piston ring–liner conjunction under mixed regime of lubrication

    Gemma Styles;Ramin Rahmani;Homer Rahnejat;Brian Fitzsimons

  • Combined numerical and experimental investigation of the micro-hydrodynamics of chevron-based textured patterns influencing conjunctional friction of sliding contacts

    N Morris;M Leighton;M De la Cruz;R Rahmani

  • Thermo-Mixed Hydrodynamics of Piston Compression Ring Conjunction

    Hamed Shahmohamadi;Ramin Rahmani;Homer Rahnejat;Colin P. Garner

  • The influence of piston ring geometry and topography on friction

    Nicholas J. Morris;Ramin Rahmani;Homer Rahnejat;P.D. King

  • On the boundary conditions in multi-phase flow through the piston ring-cylinder liner conjunction

    Hamed Shahmohamadi;Mahdi Mohammadpour;Ramin Rahmani;Homer Rahnejat

  • Enhanced performance of optimised partially textured load bearing surfaces

    Ramin Rahmani;Homer Rahnejat

  • Perspectives of metal-diamond composites additive manufacturing using SLM-SPS and other techniques for increased wear-impact resistance

    Ramin Rahmani;Ramin Rahmani;Miha Brojan;Maksim Antonov;Konda Gokuldoss Prashanth;Konda Gokuldoss Prashanth;Konda Gokuldoss Prashanth

  • A Numerical Model to Study the Role of Surface Textures at Top Dead Center Reversal in the Piston Ring to Cylinder Liner Contact

    Nicholas J. Morris;Ramin Rahmani;Homer Rahnejat;P.D. King

  • Mechanical Behavior of Ti6Al4V Scaffolds Filled with CaSiO3 for Implant Applications

    Ramin Rahmani;Maksim Antonov;Lauri Kollo;Yaroslav Holovenko

  • Effect of cylinder deactivation on tribological performance of piston compression ring and connecting rod bearing

    Nicholas J. Morris;Mahdi Mohammadpour;Ramin Rahmani;P.M. Johns-Rahnejat

  • Big End Bearing Losses with Thermal Cavitation Flow Under Cylinder Deactivation

    Hamed Shahmohamadi;Ramin Rahmani;Homer Rahnejat;Colin P. Garner

  • An assessment of gas power leakage and frictional losses from the top compression ring of internal combustion engines

    Rob Turnbull;Nader Dolatabadi;Ramin Rahmani;Homer Rahnejat

  • Boundary interactions of rough non-gaussian surfaces

    Michael Leighton;Nicholas J. Morris;Michael Gore;Ramin Rahmani

  • Analytical analysis and optimisation of the Rayleigh step slider bearing

    Ramin Rahmani;Ayoub Shirvani;Hassan Shirvani

  • Influence of advanced cylinder coatings on vehicular fuel economy and emissions in piston compression ring conjunction

    Nader Dolatabadi;Michael Forder;Nick Morris;Ramin Rahmani

  • Thermohydrodynamics of lubricant flow with carbon nanoparticles in tribological contacts

    Hamed Shahmohamadi;Hamed Shahmohamadi;Ramin Rahmani;Homer Rahnejat;Colin P. Garner

  • On the Transient Three-Dimensional Tribodynamics of Internal Combustion Engine Top Compression Ring

    Christopher E. Baker;Stephanos Theodossiades;Ramin Rahmani;Homer Rahnejat

Frequent Co-Authors

Homer Rahnejat
Homer Rahnejat University of Central Lancashire
Stephanos Theodossiades
Stephanos Theodossiades Loughborough University
Duncan Dowson
Duncan Dowson University of Leeds
Goran T. Vladisavljevic
Goran T. Vladisavljevic Loughborough University

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