Hiraku Sakamoto, Ph.D.


Journal Publication:

[j18] T. Hiroaki, H. Sakamoto, A. Inagaki, K. Ishimura, A. Doi, Y. Kono, T. Oyama, K. Watanabe, Y. Oikawa, T. Kuratomi, "Development of a smart reconfigurable reflector prototype for an extremely high-frequency antenna," Journal of Intelligent Material Systems and Structures, April 2015.

[j17] T. Nishizawa, H. Sakamoto, M. Okuma, H. Furuya, Y. Sato, N. Okuizumi, Y. Shirasawa, O. Mori, "Evaluation of Crease Stiffness on Out-of-plane Stiffness of Solar Sails," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Pc_107-Pc_113.

[j16] Y. Satou, H. Furuya, H. Sakamoto, Y. Shirasawa, O. Mori, N. Okuizumi, M. C. Natori, "Wrapping Experiments of Piecewise Straight Fold Membrane for Large Solar Sail," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Pc_49-Pc_54.

[j15] H. Sakamoto, S. Kadonishi, Y. Satou, H. Furuya, Y. Shirasawa, N. Okuizumi, O. Mori, H. Sawada, J. Matsumoto, Y. Miyazaki, M. Okuma, "Development of Repeatable Storage Method for a Large Solar Sail," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Pc_75-Pc_82.

[j14] K. Shintaku, S. Matunaga, G. Ono, H. Sakamoto, T. Satoh, O. Mori, Y. Shirawasa, N. Okuizumi, "Experiment and Analysis of Spinning Membrane Deployment Focusing on Shape Imbalance for Solar Sail," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Pc_55-Pc_62.

[j13] H. Sakamoto, T. Miura, K. Kawaguchi, T. Kamiya, H. Akagi, K. Akiyama, Y. Okada N. Kohtake, S. Shirasaka, "Systems Engineering Education through Studentsf CanSat Project Interacting with Young Professional Engineers," Transactions of Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, Vol. 12, No. ists29, 2014, pp. Tt_11-Tt_17.

[j12] H. Sakamoto, M. C. Natori, S. Kadonishi, Y. Satou, Y. Shirasawa, N. Okuizumi, O. Mori, H. Furuya, M. Okuma, "Folding Patterns of Planar Gossamer Space Structures Consisting of Membranes and Booms", Acta Astronautica, Vol. 94, Issue 1, Jan.-Feb. 2014, pp. 34-41. Get full paper from online journal

[j11] H. Sawada, Y. Shirasawa, O. Mori, N. Okuizumi, Y. Miyazaki, S. Matunaga, H. Furuya, H. Sakamoto, M. Natori, Y. Tsuda, "On-orbit Result and Analysis of Sail Deployment of World's First Solar Power Sail IKAROS," Journal of Space Technology and Science, Vol. 27, No. 1, 2013, pp. 54-68.

[j10] O. Mori, Y. Shirasawa, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, H. Furuya, S. Matunaga, M. Natori, T. Saiki, R. Funase, Y. Mimasu, J. Kawaguchi, "Deployment and Steering Dynamics of Spinning Solar Sail "IKAROS"," Journal of Aerospace Engineering, Sciences and Application, Vol. IV, No. 4, Oct.-Dec. 2012, pp. 79-96. Available online

[j9] Y. Shirasawa, O. Mori, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, S. Matunaga, H. Furuya, J. Kawaguchi, "Evaluation of Membrane Dynamics of IKAROS Based on Flight Result and Simulation Using Multi-Particle Model," Transactions of Japan Society for Aeronautical and Space Sciences, Space Technology Japan, Vol. 10, 2012, pp. Po_4_21-Po_4_26. Get full paper from online journal

[j8] H. Sakamoto, Y. Miyazaki, and O. Mori, "Transient Dynamic Analysis of Gossamer Appendage Deployment Using Nonlinear Finite Element Method," Journal of Spacecraft and Rockets, Vol. 48, No. 5, Sept.-Oct. 2011, pp. 881-890. Get full paper from online journal

[j7] O. Mori, H. Sawada, F. Hanaoka, J. Kawaguchi, Y. Shirasawa, M. Sugita, Y. Miyazaki, H. Sakamoto, and R. Funase, "Development of Deployment System for Small Size Solar Sail Mission," Transactions of Japan Society for Aeronautical and Space Sciences, Space Technology Japan, Vol. 7, 2009, pp. Pd_87-Pd_94. Get full paper from online journal

[j6] H. Sakamoto, Y. Miyazaki, and K. C. Park, "Finite Element Modeling of Solar Sail Deformation under Solar Radiation Pressure," Journal of Spacecraft and Rockets. Vol. 44, No. 3, May-Jun. 2007, pp. 514-521. Get full paper from online journal

[j5] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Evaluation of Membrane Structure Designs Using Boundary Web Cables for Uniform Tensioning," Acta Astronautica. Vol. 60, 2007, pp. 846-857. Get full paper from online journal

[j4] H. Sakamoto, and K. C. Park, "Localized Vibration Isolation Strategy for Low-Frequency Excitations in Membrane Space Structures," Journal of Vibration and Acoustics: Transactions of the ASME, Vol. 128, Dec. 2006, pp. 790-797. Get full paper from online journal

[j3] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Distributed and Localized Active Vibration Isolation in Membrane Structures," Journal of Spacecraft and Rockets. Vol. 43, No. 5, Sept.-Oct. 2006, pp. 1107-1116. Get full paper from online journal

[j2] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Dynamic Wrinkle Reduction Strategies for Cable Suspended Membrane Structures," Journal of Spacecraft and Rockets, Vol. 42, No. 5, Sept.-Oct. 2005, pp. 850-858. Get full paper from online journal

[j1] H. Sakamoto, M. C. Natori, and Y. Miyazaki, "Deflection of Multi-Cellular Inflatable Tubes for Redundant Space Structures," Journal of Spacecraft and Rockets, Vol. 39, No. 5, Sept.-Oct. 2002, pp. 695-700. Get full paper from online journal

 

Review Article :

[r1] M. C. Natori, H. Sakamoto, N. Katsumata, H. Yamakawa, N. Kishimoto, "Conceptual Model Study Using Origami for Membrane Space Structures - a Perspective of Origami-Based Engineering," Mechanical Engineering Reviews, Vol. 2, No. 1, 2015, pp. 1-15.

 

Conference Papers:

[c68] H. Sakamoto, H. Tanaka, K. Ishimura, A. Doi, Y. Kono, N. Matsumoto, K. Kimura, "Shape-Control Experiment of Space Reconfigurable Reflector Using Antenna Reception Power," AIAA-2016-0703, 3rd AIAA Spacecraft Structures Conference, SciTech2016, San Diego, California, Jan. 4-8, 2016.

[c67] T. Nishizawa, H. Sakamoto, M. Okuma, "Shape Estimation and Design Methods for Membrane Structures to Achieve Appropriate Flatness," AIAA-2016-1219, 3rd AIAA Spacecraft Structures Conference, SciTech2016, San Diego, California, Jan. 4-8, 2016.

[c66] Y. Shimoda, K. Watanabe, N. Sakamoto, T. Kuratomi, Y. Naito, T. Nishizawa, H. Sakamoto, H. Nakanishi, M. Yamazaki, "Development of Stereo Camera System for Accurate Observation of Large Deployable Membranes in Orbit," AIAA-2016-1473, 3rd AIAA Spacecraft Structures Conference, SciTech2016, San Diego, California, Jan. 4-8, 2016.

[c65] H. Furuya, T. Yokomatsu, H. Sakamoto, H. Satou, "Deployment Properties with Gravity Compensation Devices for Boom-Membrane Integrated Wrapped Structures," AIAA-2016-2167, 3rd AIAA Spacecraft Structures Conference, SciTech2016, San Diego, California, Jan. 4-8, 2016.

[c64] H. Sakamoto, H. Tanaka, K. Ishimura, A. Doi, Y. Kono, "Shape Control Experiment of Space Reflector for Extremely High Frequency Radio Astronomy," No. 070, 26th International Conference on Adaptive Structures and Technologies, October 14-16, 2015.

[c63] K. Hayasaki, H. Sakamoto, H. Tanaka, K. Ishimura, M. Okuma, "Design and Analysis of Smart Space Reflectors Driven by Piezoelectric Actuators," No. P29, 26th International Conference on Adaptive Structures and Technologies, October 14-16, 2015.

[c62] T. Okabe, N. Kogiso, H. Sakamoto, H. Tanaka, "Finite Element Updating for High Precision Space Reflector Model Using Multiobjective Optimization," 2015-c-33, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c61] H. Furuya, Y. Satou, H. Sakamoto, M. Takai, N. Okuizumi, M. C. Natori, A. Torisaka, T. Yokomatsu, H. Kurashige, A. Watanabe, "Deployment Experiments of Wrapping Fold Boom-Membrane Integrated Space Structures for De-Orbiting Satellites," 2015-c-45, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c60] K. Gotou, H. Sakamoto, A. Inagaki, H. Tanaka, K. Ishimura, M. Okuma, "Actuator Design for Space Smart Reflector to Reduce Thermal Distortion," 2015-c-49, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c59] K. Ishimura, T. Kawachi, H. Tanaka, H. Sakamoto, K. Tanaka, H. Yamakawa, "Orbit Design and Control of Satellite around the L2 Point Using Tethered Anchor System," 2015-d-31, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c58] H. Sakamoto, H. Nakanishi, M. Yamazaki, Y. Miyazaki, H. Furuya, A. Watanabe, K. Watanabe, M. Oda, "CubeSat Design for Space Demonstration of Deployable Membrane Structure Technologies," 2015-f-74, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c57] H. Sakamoto, Y. Nakamura, "Lessons Learned in Student CanSat Development Contest Envisioning Future Engineering Systems," 2015-t-19, presented at 34th International Symposium on Space Technology and Science, July 4-10, 2015.

[c56] H. Sakamoto, H. Furuya, Y. Satou, N. Okuizumi, M. Takai, M. C. Natori, "Wrapping Fold and Deployment Characteristics of Boom-Membrane Integrated Space Structures," AIAA 2015-0680, presented at 2nd AIAA Spacecraft Structures Conference, SciTech2015, Kissimmee, Florida, Jan. 5-9, 2015.

[c55] Y. Satou, O. Mori, N. Okuizumi, Y. Shirasawa, H. Furuya, H. Sakamoto, "Deformation Properties of Solar Sail IKAROS Membrane with Nonlinear Finite Element Analyses," AIAA 2015-0436, presented at 2nd AIAA Spacecraft Structures Conference, SciTech2015, Kissimmee, Florida, Jan. 5-9, 2015.

[c54] A. Inagaki, H. Sakamoto, H. Tanaka, K. Ishimura, M. Okuma, "Experimental Study of Reflector Shape Control under Various Thermal Conditions," AIAA 2015-1399, presented at 2nd AIAA Spacecraft Structures Conference, SciTech2015, Kissimmee, Florida, Jan. 5-9, 2015.

[c53] H. Furuya, Y. Satou, H. Sakamoto, M. C. Natori, "Deployment Dynamics of Membrane-Boom Wrapped Structures," IAC-14-C2.3.10, presented at 65th International Astronautical Congress, Toronto, Sept. 29-Oct. 4, 2014, pp.1-6.

[c52] H. Furuya, Y. Satou, H. Sakamoto, M. C. Natori, N. Okuizumi, "Deployment Experiment of Boom-Membrane Integrated Wrapped Structure," A-17 , presented at 24th Workshop on Astrodynamics and Flight Mechanics, Sagamihara, Kanagawa, Jul. 28-29, 2014.

[c51] Y. Satou, N. Okuizumi, H. Sakamoto, H. Furuya, G. Ono, Y. Shirasawa, O. Mori, "Nonflatness of Solar Sail Membrane Predicted by Nonlinear Finite Element Method," AIAA-2014-0832, presented at 2014 AIAA Science and Technology Forum and Exposition (SciTech 2014), National Harbor, MD, USA, Jan. 13-17, 2014.

[c50] H. Sakamoto, H. Furuya, Y. Satou, M. C. Natori, A. Watanabe, N. Kawabata, R. Sakai, N. Okuizumi, O. Mori, Y. Shirasawa, M. Takai, N. Katsumata, A. Torisaka, R. Funase, "Origami-based Membrane Storage and Deployment Technology for De-orbiting Satellites," No. IAC-13.B4.6A.4, presented at 64th International Aeronautical Congress, Beijing, China, Sept. 23-27, 2013.

[c49] H. Sakamoto, Y. Nakamura, S. Narita, Y. Kakehashi, R. Konishi, S. Shirasaka, N. Kohtake, "Education of Mission Conception and SE Methodology through Simulated-Satellite Design Contest for Students," No. TS-03-4, presented at Asia-Pacific Council on Systems Engineering Conference (APCOSEC) 2013, Kanagawa, Japan, Sept. 8-11, 2013.

[c48] D. Pastor, H. Sakamoto, X. Shuyin, M. Okuma, "Numerical Simulation of Gossamer Structures Consisting of Membranes and Booms," No. A3-5, presented at 5th Multidisciplinary International Student Workshop in Tokyo Tech, Tokyo, Japan, Aug. 8-9, 2013.

[c47] M. C. Natori, N. Katsumata, H. Yamakawa, H. Sakamoto, and N. Kishimoto, "Conceptual Model Study Using Origami for Membrane Space Structures", DETC2013-13490, ASME 2013 International Design Engineering Technical Conferences & Computers and and Information in Engineering Conference (IDETC/CIE 2013), Portland, OR, USA, Aug. 4-7, 2013.

[c46] Y. Satou, N. Okuizumi, G. Ono, H. Furuya, H. Sakamoto, Y. Shirasawa, O. Mori, "Nonlinear Finite Element Simulations for Deployed Configuration of Solar Sail "IKAROS"," B-22, presented at 23rd Workshop on Astrodynamics and Flight Mechanics, Sagamihara, Kanagawa, Jul. 29-30, 2013.

[c45] M.C. Natori, N. Katsumata, H. Yamakawa, A. Watanabe, N. Kawabata, N. Okuizumi, O. Mori, Y. Shirasawa, H. Sakamoto, and H. Furuya, "Model Study of Membrane Space Structures Based on a Stepwise Deployment Concept," 2013-c-55, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c44] K. Shintaku, S. Matunaga, G. Ono, O. Mori, Y. Shirawasa, T. Satoh, H. Sakamoto, N. Okuizumi, "Experiment and Analysis of Spinning Membrane Deployment Focusing on Shape Imbalance for Solar Sail," 2013-c-48, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c43] Y. Satou, H. Furuya, H. Sakamoto, Y. Shirawasa, O. Mori, N. Okuizumi, M. C. Natori, "Wrapping Experiments of Piecewise Straight Fold Membrane for Large Solar Sail," 2013-c-54, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c42] H. Sakamoto, T. Miura, K. Kawaguchi, T. Kamiya, H. Akagi, K. Akiyama, Y. Okada N. Kohtake, S. Shirasaka, "Systems Engineering Education through Studentsf CanSat Project Interacting with Young Professional Engineers," 2013-t-04, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c41] H. Sakamoto, S. Kadonishi, Y. Satou, H. Furuya, Y. Shirasawa, N. Okuizumi, O. Mori, H. Sawada, J. Matsumoto, Y. Miyazaki, M. Okuma, "Development of Repeatable Storage Method for a Large Solar Sail," 2013-c-53, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c40] T. Nishizawa, H. Sakamoto, M. Okuma, H. Furuya, Y. Satou, N. Okuizumi, Y. Shirawasa, O. Mori, "Evaluation of Crease Effects on Out-of-plane Stiffness of Solar Sails," 2013-c-52, presented at the 29th International Symposium on Space Technology and Science (ISTS), Nagoya, Aichi, Japan, June 2013.

[c39] H. Sakamoto, S. Kadonishi, Y. Satou, H. Furuya, Y. Shirasawa, N. Okuizumi, O. Mori, H. Sawada, J. Matsumoto, M. C. Natori, Y. Miyazaki, M. Okuma, "Repeatability of Stored Configuration of a Large Solar Sail with Non-negligible Thickness," AIAA 2013-1804, presented at 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, 8-11 April 2013, Boston, MA, USA.

[c38] H. Sakamoto, M. C. Natori, S. Kadonishi, M. Okuma, "Folding Patterns of Planar Gossamer Space Structures Consisting of Membranes and Booms," No. 63, 23rd International Conference on Adaptive Structures and Technologies, Nanjing, China, Oct. 11-13, 2012.

[c37] T. Ito, Y. Sugimoto, H. Sakamoto, N. Kohtake, S. Shirasaka, and S. Narita, "Lessons Learned in Systems Engineering Education for Students' CanSat Projects," UN/Japan Nano-Satellite Symposium, Nagoya, Japan, Oct. 10-13, 2012.

[c36] H. Sakamoto, N. Kogiso, H. Tanaka, K. Ishimura, and M. Okuma, "Finite-Element Model Updating for Highly Precise Tension-Stabilized Space Reflectors," AIAA 2012-1837, presented at 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, 23-26 April 2012, Honolulu, HI, USA.

[c35] H. Sakamoto, N. Kohtake, S. Shirasaka, K. Yamada, Y. Sudo, S. Toki, and Y. Kakehashi,, "Introduction of Systems Engineering to Cansat Project - Construction of PBL-type Educational Program -," ISTS 2011-t-14, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c34] K. Yamada, Y. Sudo, S. Toki, Y. Kakehashi, H. Sakamoto, N. Kohtake, and S. Shirasaka, "Practical Application of Systems Engineering to Cansat Project - Operation of PBL-type Educational Program in Seven Universities in Japan -," ISTS 2011-t-15, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c33] H. Sakamoto, Y. Okada, and N. Kogiso, "Finite Element Model Updating for Tension-Stabilized Flexible Space Structures," ISTS 2011-c-48, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c32] O. Mori, Y. Shirasawa, Y. Miyazaki, M. Hasome, Y. Tsuda, R. Funase, T. Saiki, R. Jifuku, H. Sawada, N. Okuizumi, and H. Sakamoto, "Attitude Control Dynamics of Spinning Solar Power Sail, IKAROS," ISTS 2011-d-03, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c31] Y. Miyazaki, H. Sakamoto, Y. Shirasawa, O. Mori, H. Sawada, M. Yamazaki, and IKAROS demonstration team, "Finite Element Analysis of Deployment of Sail Membrane of IKAROS," ISTS 2011-o-4-06v, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c30] Y. Shirasawa, O. Mori, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, S. Matunaga, H. Furuya, and J. Kawaguchi, "Evaluation of Membrane Dynamics of IKAROS Based on Flight Result and Simulation Using Multi-Particle Model," ISTS 2011-o-4-05v, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c29] H. Sawada, O. Mori, N. Okuizumi, Y. Shirasawa, Y. Miyazaki, M. Natori, S. Matunaga, H. Furuya, and H. Sakamoto, "Evaluation of Solar Power Sail Deployment Mechanism of IKAROS," ISTS 2011-o-4-04v, presented at the 28th International Symposium on Space Technology and Science (ISTS), Okinawa, Japan, June 2011.

[c28] Y. Miyazaki, Y. Shirasawa, O. Mori, H. Sawada, N. Okuizumi, H. Sakamoto, S. Matunaga, H. Furuya, and M. C. Natori, "Conserving Finite Element Dynamics of Gossamer Structure and Its Application to Spinning Solar Sail "IKAROS"," AIAA 2011-2181, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c27] H. Sakamoto, Y. Shirasawa, H. Sawada, D. Haraguchi, and O. Mori, "A Spin-up Control Scheme for Contingency Deployment of the Sailcraft IKAROS," AIAA 2011-1892, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c26] Y. Shirasawa, O. Mori, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, H. Furuya, S. Matunaga, and M. C. Natori, "Analysis of Membrane Dynamics Using Multi-Particle Model for Solar Sail Demonstrator "IKAROS"," AIAA 2011-1890, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c25] N. Okuizumi, A. Muta, S. Matunaga, H. Sakamoto, Y. Shirasawa, and O. Mori, "Small-scale Experiments and Simulations of Centrifugal Membrane Deployment of Solar Sailcraft 'IKAROS'," AIAA 2011-1888, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c24] H. Sawada, O. Mori, N. Okuizumi, Y. Shirasawa, Y. Miyazaki, M. C. Natori, S. Matunaga, H. Furuya, and H. Sakamoto, "Mission Report on the Solar Power Sail Deployment Demonstration of IKAROS," AIAA 2011-1887, presented at the 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Denver, CO, USA, 4-7 April 2011.

[c23] O. Mori, Y. Shirasawa, Y. Miyazaki, H. Sakamoto, M. Hasome, N. Okuizumi, H. Sawada, H. Furuya, S. Matunaga, M. C. Natori, and J. Kawaguchi, "Deployment and Steering Dynamics of Spinning Solar Sail eIKAROS," 21st International Symposium on Space Flight Dynamics, Sao Jose dos Campos, Brazil, Feb.28-March 4, 2011.

[c22] D. Haraguchi, H. Sakamoto, Y. Shirasawa, and O. Mori, gDesign criteria for spin deployment of gossamer structures considering nutation dynamics,h AIAA 2010-8072, presented at AIAA Guidance, Navigation, and Control Conference, Toronto, Ontario, Canada, Aug. 2-5, 2010.

[c21] Y. Shirasawa, O. Mori, N. Okuizumi, H. Sawada, Y. Miyazaki, H. Sakamoto, H. Furuya, and S. Matsunaga, gAnalysis on membrane deployment dynamics of solar sail using multi-particle model,h #A-8, presented at The 20th Workshop on JAXA Astrodynamics and Flight Mechanics, Japan, July 26-27, 2010.

[c20] H. Sakamoto, Y. Miyazaki, and O. Mori, "Transient dynamic analysis of solar sail deployment using nonlinear finite element method," AIAA 2010-2587, presented at 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Orlando, FL, USA, 12-15 April, 2010.

[c19] H. Sakamoto, Y. Miyazaki, and O. Mori, "Finite Element Dynamic Analysis of Solar Sail Deployment," ISTS 2009-c-32, presented at the 27th International Symposium on Space Technology and Science (ISTS), Tsukuba, Ibaraki, Japan, July 2009.

[c18] R. Kloepper, H. Sakamoto, and M. Okuma, "Experimental Identification of Rigid Body Inertia Properties Using Low-Frequency Unbalance Excitation," AIAA 2009-2530, 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Palm Springs, CA, USA, 4-7 May 2009. (presentation canceled)

[c17] N. Okuizumi, H. Sakamoto, A. Kitajima, and M. Sugita, "Centrifugal Deployment Experiments of a Square-shaped Solar Sail Membrane," #A-5, presented at 18th Workshop on JAXA Astrodynamics and Flight Mechanics, Sagamihara, Kanagawa, Japan, July 2008.

[c16]  O. Mori, H. Sawada, F. Hanaoka, J. Kawaguchi, Y. Shirasawa, M. Sugita, Y. Miyazaki, and H. Sakamoto, "Development of Deployment System for Small Size Solar Sail Mission," ISTS 2008-d-57, presented at 26th International Symposium on Space Technology and Science (ISTS), Hamamatsu, Shizuoka, Japan, June 2008.

[c15] H. Sakamoto, "Geometrically Nonlinear Analyses of Wave Propagation in Non-Uniformly Pre-Tensioned Membranes," ISTS 2008-c-12, presented at 26th International Symposium on Space Technology and Science (ISTS), Hamamatsu, Shizuoka, Japan, June 2008.

[c14]  C. P. Mandy, H. Sakamoto, A. Saenz-Otero, and D. Miller, "Implementation of Satellite Formation Flight Algorithms Using SPHERES Aboard the International Space Station," presented at 20th International Symposium on Space Flight Dynamics, Annapolis, MD, USA, 24-28 Sept., 2007.

[c13]  S. Mohan, H. Sakamoto, and D. Miller, "Formation Control and Reconfiguration Through Synthetic Imaging Formation Flying Testbed (SIFFT)" presented at SPIE Optics + Photonics Conference, Paper #6687-40, San Diego, CA, USA, 26-30 Aug., 2007.

[c12]  S. Kreissl, H. Sakamoto, K. C. Park, and H. Baier, "Design Improvements of a Solar Sail for Stiffness Increase and Passive Attitude Stabilization," AIAA 2007-1802, presented at 48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Honolulu, HI, USA, 23-26 Apr. 2007.

[c11]  H. Sakamoto, K. C. Park, and Y. Miyazaki, "Effect of Static and Dynamic Solar Sail Deformation on Center of Pressure and Thrust Forces," AIAA 2006-6184, presented at AIAA Guidance, Navigation, and Control Conference and Exhibit, Keystone, CO, USA, 21-24 Aug. 2006.

[c10] H. Sakamoto, and K. C. Park, "Active Vibration Suppression Strategy for a Membrane Mirror Undergoing Slewing Maneuvers," AIAA 2006-1978, presented at 47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Newport, RI, USA, 1-4 May 2006.

[c9] H. Sakamoto, and K. C. Park, "Theory and Application of Localized Vibration Control Strategy in Cable-Suspended Membrane Space Structures,"  IMECE2005-81597, presented at ASME International Mechanical Engineering Congress and Exposition, Orlando, FL, USA, 5-11 Nov. 2005.

[c8] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Distributed Localized Vibration Control of Membrane Structures Using Piezoelectric Actuators," AIAA 2005-2114, presented at 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Austin, TX, USA, 18-21 Apr. 2005.

[c7] H. Sakamoto, and K. C. Park, "Design Parameter Effects for Wrinkle Reduction in Membrane Space Structures," AIAA Paper 2005-1974, presented at 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Austin, TX, USA, 18-21 Apr. 2005.

[c6] H. Sakamoto, and K. C. Park, "Advenced Cable Boundary Layer Design in Membrane Structures for Dynamic Wrinkle Reduction," AIAA Paper 2005-1973, presented at 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Austin, TX, USA, 18-21 Apr. 2005.

[c5] H. Sakamoto, K. C. Park, and Miyazaki, "A New Membrane Structural Concept for Solar Sails and Reflectors," ISTS 2004-c-09, presented at 24th International Symposium on Space Technology and Science (ISTS), Miyazaki, Japan, May-June 2004.

[c4] H. Sakamoto, K. C. Park, and Y. Miyazaki, "Dynamic Wrinkle Reduction Strategies for Cable Suspended Membrane Structures," AIAA Paper 2004-1581, presented at 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Palm Springs, CA, USA, 19-22 Apr. 2004.

[c3] H. Sakamoto, Y. Miyazaki, and K. C. Park, "Evaluation of Cable Suspended Membrane Structures for Wrinkle-Free Design," AIAA Paper 2003-1905, presented at 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Norfolk, VA, USA, 7-10 Apr. 2003.

[c2] H. Sakamoto, M. C. Natori, and Y. Miyazaki, "Deflection of Multi-Cellular Inflatable Tubes for Redundant Space Structures," AIAA Paper 2001-1617, presented at 42nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference, Seattle, WA, USA, 16-19 Apr. 2001.

[c1] H. Sakamoto, K. Ishimura, M. C. Natori, and K. Higuchi, "Concepts of Redundant Space Structures Using Multi-Cellular Inflatable Elements," 11th International Conference on Adaptive Structures and Technologies (ICAST), Nagoya, Japan, 23-26 Oct. 2000.


Invited Lectures:

[s3] H. Sakamoto, "CanSat's Structures and Deployables," The 4th CanSat Leader Training Program,Kanagawa, Japan, July 25, 2013.

[s2] H. Sakamoto, "CanSat's Structures and Deployables," The 3rd CanSat Leader Training Program, Tokyo, Japan, July 19, 2012.

[s1] H. Sakamoto, "Dynamics design of membrane space structures," Keynote speech at the 4th TokyoTech-POSTECH-KNU Joint Workshop on Mechanical Engineering, Oct. 24, 2008.


Dissertations:

[d3] Hiraku Sakamoto, Dynamic Wrinkle Reduction Strategies for Membrane Structures, Ph.D. thesis, University of Colorado at Boulder, Dec. 2004. (Advisor: K. C. Park) Final Defense Announcement (Abstract, Thesis committee)

[d2] Hiraku Sakamoto, Research on Redundancy Concept in Inflatable Space Structures, Master's thesis, University of Tokyo, Japan, Mar. 2001. (Advisor: M. C. Natori) (in Japanese)

[d1] Hiraku Sakamoto, Development of Soft Actuators Using Conducting Plastic Polyanilin, Bachelor's thesis, University of Tokyo, Japan, Mar. 1999. (Advisor: Masayuki Nakao) (in Japanese)

Hiraku Sakamoto's research website ©2010 H. Sakamoto