Publications

Journals

  1. Uehara, D., Sirohi, J., and Bhagwat, M., “Hover Performance of Co-rotating and Counter-rotating Coaxial Rotors”, submitted to the Journal of the American Helicopter Society.

Conference proceedings

  1. Uehara, D. and Matthies, L., “Energy Modeling of VTOL Aircraft for Titan Aerial Daughtercraft (TAD) Concepts”, conference proceeding submitted to IEEE Aerospace Conference 2019, Big Sky, MT, March 2019.
  2. Uehara, D., Johnson, C., and Sirohi, J., “Transient Blade Deformation Measurement of a Coaxial Rotor System”, conference proceeding submitted to AIAA SciTech Forum and Exposition, San Diego, CA, January 2019.
  3. Uehara, D., Sirohi, J., Feil, R., and Rauleder, J., “Measurement of Transient Blade Passage Loads of a Coaxial Counter-Rotating Rotor in Hover”, conference proceeding of 44th European Rotorcraft Forum, Delft, The Netherlands, September 2018.
  4. Uehara, D., Eitner, M., and Sirohi, J., “Automated Operational Modal Identification of a Rotor Blade”, conference proceeding of AHS International 74th Annual Forum, Phoenix, Arizona, May 2018. (Dynamics Session Best Paper Award)
  5. Uehara, D., Cameron, C., and Sirohi, J., “Deformation Measurement and Modal Identification of an Extremely Flexible Rotor Blade”, conference proceeding of 6th Asian-Australian Rotorcraft Forum/Heli Japan, Kanazawa, Japan, Nov 2017. (Test & Evaluation Session Best Paper Award)
  6. Uehara, D. and Sirohi, J., “Quantification of Swirl Recovery in a Coaxial Rotor System”, conference proceeding of AHS International 73rd Annual Forum conference proceeding, Fort Worth, Texas, May 2017.
  7. Cameron, C., Uehara, D., and Sirohi, J., “Transient Hub Loads and Blade Deformation of a Mach-Scale Coaxial Rotor in Hover”, conference proceeding of 56th AIAA/ASCE/AHS/ASC Structures, StructuralDynamics, and Materials Conference, AIAA SciTech, Orlando, FL, January 2015.

Presentations

  1. “Measurement of Transient Blade Passage Loads of a Coaxial Counter-Rotating Rotor in Hover”, 44th European Rotorcraft Forum, Delft, The Netherlands, September 2018.
  2. “Energy Estimation Modeling of VTOL Aircraft for Titan Aerial Daughtercraft (TAD) Concepts”, Autonomy Seminar Series, NASA Jet Propulsion Laboratory, Pasadena, CA, August 2018.
  3. “A Comprehensive Experimental Study of a Model-scale Coaxial Counter-rotating Rotor System”, JPL Robotics Section Talks, NASA Jet Propulsion Laboratory, Pasadena, CA, August 2018.
  4. “Automated Operational Modal Identification of a Rotor Blade”, AHS International 74th Annual Forum, Phoenix, Arizona, May 2018.
  5. “Inflow Dynamics Measurements and Low-Order Modeling for Single and Coaxial Rotors”, Vertical Lift Research Center of Excellence Annual Meeting, Inn & Conference Center, The University of Maryland, College Park, MD, November 2017.
  6. “Deformation Measurement and Modal Identification of an Extremely Flexible Rotor Blade”, 6th Asian- Australian Rotorcraft Forum/Heli Japan, Kanazawa, Japan, November 2017.
  7. “Quantification of Swirl Recovery in a Coaxial Rotor System”, AHS International 73rd Annual Forum conference proceeding, Fort Worth, Texas, May 2017.
  8. “Inflow Dynamics Measurements and Low-Order Modeling for Single and Coaxial Rotors”, Vertical Lift Research Center of Excellence Kick-off Meeting, Inn & Conference Center, The University of Maryland, College Park, MD, December 2016.
  9. “Comprehensive Loads, Pressures and Performance Measurements on Coaxial Rotors for High-Speed Compounds”, JAXA invited seminar, JAXA Chofu Aerospace Center, Tokyo, Japan, December 2015.

Posters

  1. “Automated Operational Modal Identification of a Rotor Blade”, External Advisory Committee (EAC 2018) Poster Session, Austin, TX, April 2018.
  2. “Deformation Measurement and Modal Identification of an Extremely Flexible Rotor Blade”, Graduate and Industry Networking Event (GAIN 2018) Poster Session, Austin, TX, January 2018. (Department Research Award)