Kyushu University Academic Staff Educational and Research Activities Database
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Hiroto Nagai Last modified date:2019.06.25

Assistant Professor / Aerospace Structures and Structural Dynamics Laboratory
Department of Aeronautics and Astronautics
Faculty of Engineering


Graduate School
Undergraduate School


E-Mail
Academic Degree
Doctor of Philosophy(Engineering)
Country of degree conferring institution (Overseas)
No
Field of Specialization
Vibration engineering, Aeroelasticity, Unsteady aerodynamics
Total Priod of education and research career in the foreign country
00years00months
Research
Research Interests
  • Aeroelastic Analysis of Advanced Aircraft Design
    keyword : Aeroelasticity, Joined-Wing, Tailoring, Composite Material
    2014.04.
  • Study of Structure System for Morphing Flapping Wings
    keyword : Unsteady aerodynamics, Structural Dynamics
    2014.04.
  • Development of Flapping Type Micropump
    keyword : Unsteady fluid dynamics, Vibration, Structure
    2014.04.
  • Study of Micro Flutter Power Generation
    keyword : Aeroelasticity, Flutter, Power Generation
    2014.04.
  • Aeroelastic Analysis for a Shrouded Wind Turbine System
    keyword : Aeroelasticity, Wind Turbine, Composite Material
    2015.04.
  • Study of Optimum Design for Aeroelastic Flapping Wing
    keyword : Aeroelasticity, Optimum Design
    2009.04.
  • Study of Airfoils for Flapping Wings
    keyword : Unsteady aerodynamics
    2012.04~2015.03.
Academic Activities
Papers
1. Hiroto Nagai, Koiki Fujita, and Masahiko Murozono, Experimental Study on Forewing–Hindwing Phasing in Hovering and Forward Flapping Flight, AIAA Journal, 10.2514/1.J058335, 2019.06, [URL].
2. Bo Wang, Nobuhide Uda, Kousei Ono, Hiroto Nagai, Effect of micro in-plane fiber waviness on compressive properties of unidirectional fabric composites, Journal of Composite Materials, 10.1177/0021998317740197, 2017.11, [URL].
3. Hiroto Nagai, Shunsuke Nakamura, Masahiko Murozono, Kosei Ono, Nobuhide Uda, STRUCTURAL DESIGN OF AEROELASTIC FLAPPING WING, Proceedings of the First International Symposium on Flutter and its Application, JAXA Special Pubulication, 303-312, JAXA-SP-16-008E, 2017.05, [URL].
4. Taeyoung Kim, Hiroto Nagai, Kousei Ono, Nobuhide Uda, Yuji Ohya, TWO-DIMENSIONAL AEROELASTIC ANALYSIS OF A BRIMMED-DIFFUSER SHROUD WITH COMPOSITE MATERIAL FOR A WIND TURBINE, Proceedings of the First International Symposium on Flutter and its Application, JAXA Special Pubulication, 747-756, JAXA-SP-16-008E, 2017.05.
5. Bo Wang, Kento Maekawa, Nobuhide Uda, Kousei Ono, Hiroto Nagai, Compressive failure analysis of quasi-isotropic composite laminates fabricated with quasi-unidirectional woven fabric, Journal of Composite Materials, 10.1177/0021998315573286, 50, 2, 231-241, 2016.01, [URL].
6. Hiroto Nagai, Koji Isogai, Nobuhide Uda, Kosei Ono, Investigation of airfoil for an insect-sized flapping wing, 29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014, 2014.09, [URL].
7. Hiroto Nagai, Koji Isogai, Masahiko Murozono, Tsutomu Fujishiro, Investigation on structural and aerodynamic characteristics of resonant type elastic flapping wing, 28th Congress of the International Council of the Aeronautical Sciences 2012, ICAS 2012, 2, 1546-1555, 2012.09, [URL].
8. Hiroto Nagai, Koji Isogai, Effects of flapping wing kinematics on hovering and forward flight aerodynamics, AIAA Journal, 10.2514/1.J050968, 49, 8, 1750-1762, 2011.08, [URL].
9. Hiroto Nagai, Koji Isogai, Tatsumi Fujimoto, Experimental study on flow interaction between fore- and hindwings of dragnofly in hovering and forward flight, 27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010, 2, 998-1007, 2010.09, [URL].
10. Hiroto Nagai, Koji Isogai, Tatsumi Fujimoto, Toshiyuki Hayase, Experimental and numerical study of forward flight aerodynamics of insect flapping wing, AIAA Journal, 10.2514/1.39462, 47, 3, 730-742, 2009.03, [URL].
11. Hiroto Nagai, Koji Isogai, Toshiyuki Hayase, Measurement of unsteady aerodynamic force of 3d flapping wing in hovering to forward flight, 26th Congress of International Council of the Aeronautical Sciences 2008, ICAS 2008, 5, 800-810, 2008.09.
12. K. Isogai, H. Kawabe, Hiroto Nagai, S. Nishiguchi, Experimental and theoretical study of attitude control of flapping wing micro aerial vehicle, 41st AIAA Fluid Dynamics Conference and Exhibit 2011, 2011.06.
13. Hiroto Nagai, Takumi Ito, Keita Miura, Toshiyuki Hayase, Koji Isogai, Measurement of unsteady aerodynamic forces of 3D flapping wing in hovering flight (2nd report, comparison between trapezoidal and sinusoidal flapping motions), Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 74, 3, 536-544, 2008.03.
14. Hiroto Nagai, Takumi Ito, Keita Miura, Toshiyuki Hayase, Koji Isogai, Measurement of unsteady aerodynamic forces of 3D flapping wing in hovering flight (1st report, influences of Reynolds number, reduced frequency and planform), Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 73, 12, 2450-2458, 2007.12.
Presentations
1. Taeyoung Kim, Hiroto Nagai, Nobuhide Uda, Yuji Ohya, Fundamental Effect of Vibrational Mode on Vortex-Induced Vibration in a Brimmed Diffuser for a Wind Turbine, Wind Energy Science Conference 2019 (WESC2019), 2019.06.
2. Hiroto Nagai, Yoshiki Oshima, Nobuhide Uda, Shigeki Yashiro, Effect of bio-inspired wing structure on aeroelastic characteristics for micro flutter power generation, Wind Energy Science Conference 2019 (WESC2019), 2019.06.
3. Taeyoung Kim, Hiroto Nagai, Kosei Ono, Nobuhide Uda, Yuji Ohya, Two-dimensional aeroelastic analysis of a brimmed-diffuser shroud with CFRP sandwich structure for a wind turbine, 17th US-Japan Conference on Composite Materials, 2016.08.
4. Takeshi Minoda, Hiroto Nagai, Nobuhide Uda, Kosei Ono, Masahiko Murozono, Effect of Vibrational Mode on Aerodynamic Characteristics for an Elastic Flapping Wing, 7th Asia Pacific International Symposium on Aerospace Technology (APISAT2015), 2015.11.
5. Koji Isogai, Hiroto Nagai, Hiroyasu Kawabe, Shun Nishiguchi, Experimental and Theoretical Study of Attitude Control of Flapping Wing Micro Aerial Vehicle, AIAA Fluid Dynamics Conference, 2011.06.
6. Hiroto Nagai, Koji Isogai, Tatsumi Fujimoto, Experimental Study of Wing-Wake Interaction of Insect Flapping Wing, KSAS-JSASS Joint International Symposium on Aerospace Engineering, 2008.11.
7. Hiroto Nagai, Akihiro Nishi, Tatsumi Fujimoto, Koji Isogai, Study on Flow Interaction Mechanism of Fore- and Hind-wings of Dragonfly,” 4th International Symposium of Aero Aqua Bio-Mechanisms, 4th International Symposium of Aero Aqua Bio-Mechanisms(ISABMEC 2009), 2009.08.
Membership in Academic Society
  • American Institute of Aeronautics and Astronautics
  • The Japan Society of Mechanical Engineers
  • The Japan Society for Aeronautical ans Space Sciences
Awards
  • 2013.08, Young Researcher Award, The 55th JSASS/JSME/JAXA Structures Conference.
  • 2006.09, JSASS Excellent Presentation Awards for Students, The 38th Fluid Dynamics Conference.
Educational
Other Educational Activities
  • 2018.08.
  • 2015.08.