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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 53 1005 923 416 358 319 10599

Rajendra Singh publications per year

The chart shows the history of publications by Rajendra Singh between 1974 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Rajendra Singh published across 52 years, from 1974 to 2025, averaging 7.2 papers a year. Output peaked at 23 publications in 2023. 16 of the 376 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1974 to 2025. Vertical axis: number of publications, 0 to 23. Peak 23 publications in 2023. 1974: 3 publications 1975: 1 publication 1976: 1 publication 1977: 1 publication 1978: 6 publications 1979: 3 publications 1980: 2 publications 1981: 1 publication 1982: 4 publications 1983: 0 publications 1984: 2 publications 1985: 3 publications 1986: 4 publications 1987: 3 publications 1988: 3 publications 1989: 10 publications 1990: 17 publications 1991: 6 publications 1992: 13 publications 1993: 8 publications 1994: 9 publications 1995: 18 publications 1996: 11 publications 1997: 5 publications 1998: 8 publications 1999: 6 publications 2000: 4 publications 2001: 10 publications 2002: 4 publications 2003: 12 publications 2004: 4 publications 2005: 17 publications 2006: 5 publications 2007: 19 publications 2008: 12 publications 2009: 4 publications 2010: 7 publications 2011: 4 publications 2012: 7 publications 2013: 17 publications 2014: 9 publications 2015: 18 publications 2016: 8 publications 2017: 6 publications 2018: 3 publications 2019: 3 publications 2020: 2 publications 2021: 3 publications 2022: 11 publications 2023: 23 publications 2024: 9 publications 2025: 7 publications
1974 2025

376 publications in total across all disciplines

View publications per year as a table
Rajendra Singh: publications per year, 1974 to 2025
Year Publications
1974 3
1975 1
1976 1
1977 1
1978 6
1979 3
1980 2
1981 1
1982 4
1983 0
1984 2
1985 3
1986 4
1987 3
1988 3
1989 10
1990 17
1991 6
1992 13
1993 8
1994 9
1995 18
1996 11
1997 5
1998 8
1999 6
2000 4
2001 10
2002 4
2003 12
2004 4
2005 17
2006 5
2007 19
2008 12
2009 4
2010 7
2011 4
2012 7
2013 17
2014 9
2015 18
2016 8
2017 6
2018 3
2019 3
2020 2
2021 3
2022 11
2023 23
2024 9
2025 7
Total 376
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Rajendra Singh publications per year - data summary

  • Rajendra Singh, a Mechanical and Aerospace Engineering scholar from The Ohio State University, has 376 publications recorded across 52 years, from 1974 to 2025.
  • The oldest publication on record dates to 1974 and the most recent to 2025.
  • The most productive year is 2023, with 23 publications.
  • The least productive years with any output are 1975, 1976, 1977 and 1981, with 1 publication each.
  • 1 of the 52 years in the span carries no publications at all (1983).
  • The rate of publication averages 7.2 papers per year over the whole span, or 7.4 per year counting only the 51 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 53 publications, 14% of the career total.
  • Split into equal eras - 1974-1991: 70 publications (3.9 per year); 1992-2009: 169 publications (9.4 per year); 2010-2025: 137 publications (8.6 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Rajendra Singh 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 Rajendra Singh 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, 317–326 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: 319 publications — 76th percentile

76% 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 70 319
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
Download as CSV

Rajendra Singh publication distribution in Mechanical and Aerospace Engineering in 2026 - data summary

  • The chart plots the publication count of all 3,445 Mechanical and Aerospace Engineering scientists ranked by Research.com in 2026, grouped into 63 ranges running from 47–56 to 659+ publications.
  • Rajendra Singh, a Mechanical and Aerospace Engineering scholar from The Ohio State University, records 319 publications - the 76th percentile of the discipline.
  • 76% of ranked Mechanical and Aerospace Engineering scientists score the same or lower than Rajendra Singh, and about 24% score higher.
  • The median of the discipline falls in the 217–226 publications range, and Rajendra Singh ranks above the median.
  • The most crowded range is 147–156 publications, holding 155 scientists (4% of the field).
  • 46% of the field sits in the lowest quarter of the value range (up to 197–206 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 659 publications or more, 100 scientists in all (3% of the field).

Rajendra Singh 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 Rajendra Singh 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, 53 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: 53 D-Index — 71st percentile

71% 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 53
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
Download as CSV

Rajendra Singh D-index placement in Mechanical and Aerospace Engineering in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 3,445 Mechanical and Aerospace Engineering scientists ranked by Research.com in 2026, grouped into 64 ranges running from 30 to 93+ D-Index.
  • Rajendra Singh, a Mechanical and Aerospace Engineering scholar from The Ohio State University, records 53 D-Index - the 71st percentile of the discipline.
  • 71% of ranked Mechanical and Aerospace Engineering scientists score the same or lower than Rajendra Singh, and about 29% score higher.
  • The median of the discipline falls in the 43 D-Index range, and Rajendra Singh ranks above the median.
  • The most crowded range is 34 D-Index, holding 189 scientists (5% of the field).
  • 57% of the field sits in the lowest quarter of the value range (up to 45 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 93 D-Index or more, 100 scientists in all (3% of the field).

Research.com Recognitions

  • 2002 - IEEE Fellow For contributions to and technical leadership in the materials processing and manufacturing of semiconductor devices.
  • 1993 - SPIE Fellow
  • 1992 - Fellow of the American Society of Mechanical Engineers

Overview

Rajendra Singh is affiliated with The Ohio State University in the United States. Their research spans multiple fields, with a strong focus on Agricultural and Biological Sciences, Engineering, and Biochemistry, Genetics, and Molecular Biology. Within these broad fields, their work includes subfields such as Molecular Biology, Civil and Structural Engineering, Plant Science, Insect Science, and Soil Science.

The scientist's research topics cover a range of subjects, notably:

  • Insect Pest Control Strategies
  • Structural Engineering and Vibration Analysis
  • Soil erosion and sediment transport
  • Agricultural pest management studies
  • Insect Resistance and Genetics
  • Vibration Control and Rheological Fluids
  • Insect-Plant Interactions and Control

Rajendra Singh has contributed to several recent papers, including:

  • An Overview of Microbial α-amylase and Recent Biotechnological Developments, 2022, Current Biotechnology
  • An Overview on Methanotrophs and the Role of Methylosinus trichosporium OB3b for Biotechnological Applications, 2022, Biotechnology and Bioprocess Engineering

The scientist has frequent coauthors collaborating in their research, including Paul C. Gilmore, Umesh Gandhi, Si Wouk Kim, Ravi Shanker, and Malyaj R. Prajapati.

Publication venues where Rajendra Singh's work has appeared repeatedly feature:

  • SSRN Electronic Journal
  • International Journal of Biological Innovations
  • arXiv (Cornell University)
  • Indian Journal of Veterinary Pathology
  • Current Biotechnology

Rajendra Singh has also authored books, with at least one published by Springer Nature (Netherlands). The title "Soil and Water Conservation Structures Design" was published in 2023.

The scientist has received several awards, including the IEEE Fellow in 2002 for contributions and leadership in materials processing and manufacturing of semiconductor devices. They were also named SPIE Fellow in 1993 and Fellow of the American Society of Mechanical Engineers in 1992.

Best Publications

  • Non-linear dynamics of a spur gear pair

    A. Kahraman;R. Singh

  • Interactions between time-varying mesh stiffness and clearance non-linearities in a geared system

    A. Kahraman;R. Singh

  • Non-linear dynamics of a geared rotor-bearing system with multiple clearances

    A. Kahraman;R. Singh

  • Vibration transmission through rolling element bearings, part I: Bearing stiffness formulation

    T.C. Lim;R. Singh

  • Linear analysis of automotive hydro-mechanical mount with emphasis on decoupler characteristics

    R. Singh;G. Kim;P.V. Ravindra

  • Effect of sliding friction on the dynamics of spur gear pair with realistic time-varying stiffness

    Song He;Rajendra Gunda;Rajendra Singh

  • Super- and sub-harmonic response calculations for a torsional system with clearance nonlinearity using the harmonic balance method

    T.C. Kim;T.E. Rook;R. Singh

  • Analysis of automotive neutral grear rattle

    R. Singh;H. Xie;R.J. Comparin

  • IDENTIFICATION OF MULTI-DEGREE-OF-FREEDOM NON-LINEAR SYSTEMS UNDER RANDOM EXCITATIONS BY THE “REVERSE PATH” SPECTRAL METHOD

    C.M. Richards;R. Singh

  • Non-linear frequency response characteristics of an impact pair

    R.J. Comparin;R. Singh

  • ANALYSIS OF PERIODICALLY VARYING GEAR MESH SYSTEMS WITH COULOMB FRICTION USING FLOQUET THEORY

    M. Vaishya;R. Singh

  • Prediction of dynamic friction forces in spur gears using alternate sliding friction formulations

    Song He;Sungmin Cho;Rajendra Singh

  • Sliding Friction-Induced Non-Linearity and Parametric Effects in Gear Dynamics

    M. Vaishya;R. Singh

  • VIBRATION TRANSMISSION THROUGH ROLLING ELEMENT BEARINGS, PART II: SYSTEM STUDIES

    T.C. Lim;R. Singh

  • Strategies for Modeling Friction in Gear Dynamics

    Manish Vaishya;Rajendra Singh

  • Analysis of periodically excited non-linear systems by a parametric continuation technique

    C. Padmanabhan;R. Singh

  • Effect of bearing preloads on the modal characteristics of a shaft-bearing assembly: Experiments on double row angular contact ball bearings

    Aydin Gunduz;Jason T. Dreyer;Rajendra Singh

  • Transient response of a hydraulic engine mount

    H. Adiguna;M. Tiwari;R. Singh;H.E. Tseng

  • Linear dynamic analysis of multi-mesh transmissions containing external, rigid gears

    H. Vinayak;R. Singh;C. Padmanabhan

  • Nonlinear Analysis of Automotive Hydraulic Engine Mount

    Gun Kim;Rajendra Singh

Frequent Co-Authors

Ahmet Kahraman
Ahmet Kahraman The Ohio State University
Thomas J. Royston
Thomas J. Royston University of Illinois at Chicago
Chia-Hsiang Menq
Chia-Hsiang Menq The Ohio State University
Kenneth J. Waldron
Kenneth J. Waldron University of Technology Sydney
Nong Zhang
Nong Zhang University of Technology Sydney
Stephen Yurkovich
Stephen Yurkovich The University of Texas at Dallas

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