Dr. Krishna Kumar
Associate Professor
Department of Aerospace Engineering, Ryerson University
Centre for Computing and Engineering, ENG170
350 Victoria Street
Toronto, Ontario, Canada
M5B 2K3
Office: ENG 156 (George Vari Engineering and Computing Center, Room 156)
Phone: 416 - 979 - 5000 xt. 4098
Email: kdkumar@ryerson.ca
Associate Professor
Department of Aerospace Engineering, Ryerson University
Centre for Computing and Engineering, ENG170
350 Victoria Street
Toronto, Ontario, Canada
M5B 2K3
Office: ENG 156 (George Vari Engineering and Computing Center, Room 156)
Phone: 416 - 979 - 5000 xt. 4098
Email: kdkumar@ryerson.ca
Undergraduate
- Introduction to Space Systems Design
- Spacecraft Trajectory, Guidance and Control
- Spacecraft Dynamics and Control
- Flight Dynamics and Control
- Aerospace Sensors and Actuators
- Introduction to Satellite Systems
- Optimization
- Spacecrat guidance, trajectory and control
- Spacecraft dynamics and control
- Kumar, K. D., Bang, H. C., and Tahk, M. J., “Novel Attitude Control Approach for Satellites in Elliptic Orbits Using Solar Radiation Pressure,” Acta Astronautica, 2006. (in press)
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- Kumar, K. D., and Kumar, K., “Line-of-Sight Pointing for Satellites in High Altitude Inclined Orbits,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 41, No. 3, pp. 819-829, 2005.
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- Kumar, K. D., and Yasaka, T., “Dynamics of Rotating Linear Array Tethered Satellite System,” AIAA Journal of Spacecraft and Rockets, Vol. 42, No. 2, 2005 pp. 373-378.
- Kumar, K. D., “A Review on Dynamics and Control of Non-Electrodynamic Tethered Satellite Systems,” AIAA Journal of Spacecraft and Rockets, 2006.
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- Kumar, K. D., and Yasaka, T., “Rotating Formation Flying of Three Satellites Using Tethers,” AIAA Journal of Spacecraft and Rockets, Vol. 41, No. 6, 2004, pp. 973-985.
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- Kumar, K. D., and Khan, B. K., “Minimizing Tool Changeovers in Three Parallel and Identical Machining Centres,” Journal of Advanced Manufacturing Systems, Vol. 3, No. 2, 2004, pp. 169-181.
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- Kumar, K. D., Yasaka, T., and Sasaki, T., “Orbit transfer of Service Vehicle/ Payload Transfer through Tether Retrieval,” Acta Astronautica, Vol. 54, No. 9, 2004, pp. 687-698.
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- Kasana, H. S., and Kumar, K. D., “Grouping Algorithm for Goal Programming Problems,” Asia-Pacific J. of Operational Research, Vol. 20, 2003, pp. 191-220.
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- Kumar, K. D., “Flight Control System Design Using Neural Networks and Genetic Algorithms,” International Journal Control and Intelligent Systems, Vol. 31, No. 2, 2003, pp. 101-112.
- Kumar, K. D., and Yasaka, T., “Satellite Attitude Stabilization through Kite-like Tether Configuration,” AIAA Journal of Spacecraft and Rockets,Vol. 39, No. 5, 2002, pp. 755-760.
(.pdf) Errata Here: Errata
- Kumar, K., and Kumar, K. D., “Feasibility of Using Satellites In Non-Equatorial 24-Hour Circular Orbits for Communications,” Acta Astronautica, Vol. 48, No. 5-12, 2001, pp. 589-596.
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- Kumar, K. D., and Kumar, K., “Attitude Manoeuvre of Dual Tethered Satellite Platforms through Tether Offset Change,” AIAA Journal of Spacecraft and Rockets, Vol. 38, No. 2, 2001, pp. 237-242.
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- Kumar, K. D., “Payload Deployment using Reusable Launch Vehicle through Tether,” AIAA Journal of Spacecraft and Rockets, Vol. 38, No. 2, 2001, pp. 291-294.
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- Kumar, K., and Kumar, K. D., “Tethered Dual Spacecraft Configuration: A Simple Solution to Attitude Control Problems,” Aerospace Science and Technology, Vol. 4, No. 7, 2000, pp. 495-506.
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- Kumar, K. D., and Kumar, K., “Pitch and Roll Attitude Manoeuvre of Twin Satellite System through Very Short Tethers,” AIAA Journal of Spacecraft and Rockets, Vol. 37, No. 2, 2000, pp. 287-290.
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- Kumar, K., and Kumar, K. D., “Variable Attitude Compensation through Tether for Comsats in ‘Drifting’/Inclined Geosynchronous Orbits,” AIAA Journal of Spacecraft and Rockets, Vol. 37, No. 2, 2000, pp. 290-293.
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- Kasana, H. S., and Kumar, K. D., “An Efficient Algorithm for Multi-Objective Transportation Problems,” Asia-Pacific J. of Operational Research, Vol. 17, 2000, pp. 27-40.
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- Kumar, K. D., and Kumar, K., “High Precision Satellite Pointing Stability in Elliptic Orbits through Tethers,’’ accepted for publication at Journal of the Astronautical Sciences, 2000.
- Khan, B. K, Gupta, B. D., Sen Gupta, D. K., and Kumar, K. D., “A Generalized Procedure for Minimizing Tool Changeovers of Two Parallel and Identical CNC Machining Centres,” International Journal of Production Planning and Control (Taylor & Francis), Vol. 11, No. 1, 2000, pp. 62-72.
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- Kumar, K. D., and Kumar, K., “Satellite Pitch and Roll Manoeuvres through Very Short Tethers,” Acta Astronautica, Vol. 44, No. 5, 1999, pp. 257-265.
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- Kumar, K., and Kumar, K. D., “Variable Attitude Manoeuvre through Tether for a Drifting Twin Satellite System in Elliptic Orbits,” Acta Astronautica, Vol. 45, No. 3, 1999, pp. 135-142.
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- Kumar, K., and Kumar, K. D., “Line-of-Sight Pointing Stability for Drifting Satellites,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 35. No. 2, April, 1999, pp.504-510.
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- Kumar, K., and Kumar, K. D., “Auto-Attitude Stabilization of A Twin Satellite System through Very Short Tethers,” AIAA Journal of Spacecraft and Rockets, Vol. 35, No. 2, 1998, pp. 199-204.
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- Kumar, K., and Kumar, K. D., “Open-Loop Satellite Librational Control in Elliptic Orbits through Tether,” Acta Astronautica, Vol. 41, No. 1, 1997, pp. 15-21.
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- Kasana, H. S., and Kumar, K. D., “A Note on Improving Initial BFS to Unbalanced Transportation Problems,” News Bull. Calcutta Mathematical Society,Vol. 19,No.1, 1996, pp.15-17.
- Kumar, K., and Kumar, K. D., “Satellite Attitude Manoeuvre through Tether: A Novel Concept,” Paper No. IAF-96-A.5.02, presented in 47th International Astronautical Federation Congress, Beijing, China, October 7-11, 1996; also in Acta Astronautica, Vol. 40, No. 2-8, pp. 247-256, 1997.
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- Kumar, K. D., Tahk, M. J., and Bang, H. C., “Satellite Attitude Stabilization Using Solar Radiation Pressure and Magnetic Torquer,” IEEE Transactions on Aerospace and Electronic Systems. (under review, Log No. TAES-200501603).
- Kumar, K. D., Tahk, M. J., Bang, H. C., and Junkins, J. L., 2004, “Satellite Attitude Control Using Fluid Rings,” AIAA Journal of Guidance, Control, and Dynamics. (under revision)
- Kumar, K. D., Tahk, M. J., Bang, H. C., “Satellite Formation Flying Using Along Track Thrust,” Acta Astronautica. (under review; Log 4031, AA 4298)
- Patel, T., and Kumar, K. D., “Formation Flying of Multiple Satellites Along Local Horizontal Using Flexible Rods,” Journal of Spacecraft and Rockets. (under review; Log A12462)
- Kumar, K. D., “Synthesis of Formation of Multiple Spacecrafts”. (under preparation)
- Kumar, K. D., Bang, H. C., and Tahk, M. J., “Formation Flying of Satellites Using Magnetic forces”. (under preparation)
- Kumar, K. D., Tahk, M. J., and Bang, H. C., “Formation Flying of Satellites Using Aerodynamic and Solar Radiation forces”. (under preparation)
- Kumar, K. D., “Design of Pneumatic Drilling Fixture for Mirror Housing an Aircraft Component,” TRYST’89 An All India Student Seminar, Indian Institute of Technology, Delhi, , January 12-13, 1989.
- Kumar, K. D., “Design of An Automatic Drilling Fixture for Mirror Housing an Aircraft Component,” APOGEE’89 an All India Student Seminar, Birla Institute of Technology and Science, Pilani, March 1-4 , 1989. (Awarded First Prize)
- Kumar, K. D., and Agarwal, K. K., “Steel Tube Handling by use of Linear Motors,” Proceedings of Fifth National Convention of Production Engineers, University of Roorkee, Roorkee, September 25-27, 1989.
- Kumar, K. D., “Control Mechanism of Spin Stabilization of Projectile,” Proceedings of 35th Congress of India Society of Theoretical and Applied Mechanics, Pantnagar, January 1993.
- Kumar, K. D., Sharma, P. B., and Kundra, T. K., “Slip Characteristics between Two Spinning Discs,” Proceedings of 58th Annual Conference of Indian Mathematical Society, March 22-24, 1993, Banaras Hindu University,Varanasi, India.
- Kumar, K. D., “Suggested Control Mechanism for Spin Stabilization of Projectile,” Proceedings of MEET'N'93 First Joint ASCE/ASME/SES Meeting, The University of Virginia, USA, June 6-9, 1993.
- Khan, B. Kant and Kumar, K. D., “Non–Conventional Energy: A solution to Energy Crisis,” Proceedings of Ninth National Convention of Mechanical Engineers, October 15-17, I.I.T. Kanpur, 1993, pp. 228-232.
- Kumar, K. D., Prasad, M., Kasana, H. S., and Prasad, M. A., “Goal Programming Model for Emission Reduction and Optimum Allocation of Energy Resources,” Ninth Indian Engineering Congress, Calcutta, December 15-20, 1994.
- Kumar, K. D., Khan, B. K., and Vyas, N. S., “Graphite / Polymide Derived from 3F Diamine and Pyromellitic Dianhydride as a Promising Candidate for Thermal Protection System of the HL-20,” Second Thermal Structures Conference, University of Virginia, USA, October 18-20, 1994.
- Khan, B. Kant, Kumar, K. D., and Gupta, B. D., “Quality Culture-A Key to Success in Entrepreneurship Development,” Proceedings of National Programme on Entrepreneurship and Technology Development, Delhi College of Engineering, Delhi, India, March 4-5, 1994.
- Prasad, M. A., Kumar, K. D., Prasad, M., and Tandon, A., “Integrated energy development through recycling of solid wastes,” Tenth National Convention of Chemical Engineers, Kanpur, India, October 29-30, 1994.
- Kumar, K., and Kumar, K. D., “Passive Three-Axis Satellite Pointing Stability through Tether,” Paper No. IAF- 97-A.3.02, 48th International Astronautical Federation Congress, Italy, October 6-10, 1997.
- Kasana, H. S., and Kumar, K. D., “Extremum Difference Method for Transportation and Generalized Assignment Problems,” National Seminar on Recent Trends and Advances of Mathematics and Statistics in Engineering and Technology, Indian School of Mines, Dhanbad, November 28-29, 1997.
- Kumar, K. D., “Satellite Attitude Control and Manoeuvre through Tethers,” Andhra Pradesh Young Scientist Convention, Hyderabad, India, August 25-27, 1998.
- Kasana, H. S., and Kumar, K. D., “An Efficient Algorithm for Optimising Urban Bus Routes,” National Seminar On Road Transportation–Issues and Strategies RITS’98, Edited by Trivedi, A., Batra V. S., Kumar M., Sood V. K. and Kanwar, V. S., Thapar Institute of Engineering and Technology, Patiala, October 23-24, 1998, pp. 1-5.
- Kumar, K. D., Kumar, K., and Kasana, H.S., “Uninterrupted Communications through Adaptive Fuzzy Logic Controller using Tethers for Satellites in Elliptic Orbits,” 49th International Astronautical Federation Congress, Melbourne, Australia, September 28 - October 2, 1998.
- Kumar, K., and Kumar, K. D., “Feasibility of Nearly Passive Satellite Attitude Management through Tether,” Space Engineering Conference, Birla Institute of Technology, Ranchi, India, December, 1998.
- Kumar, K. D., “Satellite Attitude Management through Tether,” Proceedings of Tether Group Meeting, held at National Aerospace Laboratory, Tokyo, Japan, January 21, 1999, pp. 125-137.
- Kumar, K. D., and Nakajima, A., “Attitude Motion Control of Debris through Tether System”, 9th Workshop on Astrodynamics and Flight Mechanics, Institute of Space and Astronautical Sciences, Sagamihara, Japan, July 22-23, 1999, pp. 43-48.
- Kumar, K. D., and Nakajima, A., “Attitude Motion Control of Debris through Tether System,” 43rd Space Science and Technology Symposium, Kobe, Japan, October 22-23, 1999, pp. 213-218.
- Kumar, K. D., and Miyazawa, Y., “Orbital Manoeuvring of Reusable Launch Vehicle through Tether,” Proceedings of Japan Society for Aeronautical and Space Sciences (JSASS) 13th International Sessions in 37th Aircraft Symposium, Tokyo, Japan, October 13-15, 1999, pp. 737-740.
- Kumar, K. D., “Tethered Dual Satellite System for Line-of-Sight-Pointing in Non-Equatorial Geosynchronous Orbit,” 22nd International Symposium on Space Technology and Science, Morioka, Japan, May 28 – June 4, 2000, pp. 1768-1773.
- Kumar, K. D., and Nakajima, A., “Angular Momentum Dumping of Debris through Tether System,” 22nd International Symposium on Space Technology and Science, Morioka, Japan, May 28 – June 4, 2000, pp. 1780-1785.
- Kumar, K. D., and Kumar, K., “Line-of-Sight-Pointing Stability for ‘Drifting’ Satellites in Non-Equatorial Orbits,” AIAA-2000-4147, AIAA Guidance, Navigation, and Control Conference and Exhibit, Denver, CO, USA, August 14-17, 2000.
- Kumar, K. D., “Uninterrupted Satellite Communications in Non-Equatorial Orbits,’’ AIAA-2000-4530, AIAA/AAS Astrodynamics Specialist Conference, Denver, CO, USA, 14-17 August 2000.
- Kumar, K. D., and Miyazawa, Y., “Flight Control System Design Using Neural Networks and Genetic Algorithms,” Proceedings of JSASS 14th International Sessions in 38th Aircraft Symposium, October 11-13, 2000, Japan, pp. 693-696.
- Kumar, K. D., and Yasaka, T., “Dynamics of Kite-like Tethered Satellite System,” ISTS 2002-d-42, 23nd International Symposium on Space Technology and Science, Shimane, Japan, May 26 – June 2, 2002, pp. 863-868.
- Kumar, K. D., Hanada, H., and Yasaka, T., “Payload Propulsion using a Spinning Platform through Tether,” ISTS 2002-d-43, 23nd International Symposium on Space Technology and Science, Shimane, Japan, May 26 – June 2, 2002, pp. 869-874.
- Sakamoto,Y., Hiroshi, Y., Nishimine, A., Miyazaki, M., Kumar, K. D., Hirayama, H, and Yasaka, T., “Development of Low Cost Micro Tethered Satellite System,” ISTS 2002-f-15, 23nd International Symposium on Space Technology and Science, Shimane, Japan, May 26 – June 2, 2002, pp. 1382-1387.
- Kumar, K. D., and Yasaka, T., “Satellite Formation Keeping and Reconfiguration using Neural Networks and Genetic Algorithms,” IAC-02-A.2.06, 53rd International Astronautical Federation Congress, Houston, Texas, USA, October 10-19, 2002.
- Kumar, K. D., “Line-of-Sight Pointing of Multiple Micro-satellites in Non-equatorial Orbits,” IAC-02-M.4.06, 53rd International Astronautical Federation Congress, Houston, Texas, USA, October 10-19, 2002.
- Kumar, K. D., Bang, H. C., and Tahk, M. J., “Formation Flying of Rotating Linear Array Tethered Satellite Systems,” Proceedings of the Korean Society of Aeronautics and Space Sciences (KSAS) 1st International Sessions, Gyeongju, Korea, Nov. 14 – 15, 2003, pp. 103-110.
- Kumar, K. D., “Dynamics and Control of Tethered Satellite Systems: A Review,” Proceedings of the Korean Society of Aeronautics and Space Sciences (KSAS) 1st International Sessions, Gyeongju, Korea, Nov. 14 – 15, 2003, pp. 146-155.
- Kumar, K. D., Bang, H. C., and Tahk, M. J., “Free Space Optics : Challenges, Opportunities and Prospects,” International Conference and Exhibition SUPERCOMM INDIA 2004, New Delhi, India, February 4- 6, 2004.
- Kumar, K. D., Bang, H. C., and Tahk, M. J., “Formation Flying of Satellites Using Solar Radiation Pressure,” ISTS-2004-d-25, 24th International Symposium on Space Technology and Science, Miyazaki, Japan, May 30 – June 6, 2004.
- Kumar, K. D., “A Review on Dynamics and Control of Tethered Satellite Systems,” ISTS-2004-d-30, 24th International Symposium on Space Technology and Science, Miyazaki, Japan, May 30 – June 6, 2004.
- Kumar, K. D., Tahk, M. J., and Bang, H. C., “Formation Flying of Satellites Using Aerodynamics and Solar Radiation Forces,” Proceedings of the KSAS-JSASS Joint Symposium on Aerospace Engineering, Seoul, Korea, Nov. 18–19, 2004.
- Lee, D. H., Kumar, K. D., and Bang, H. C., “Formation Flying of Small Satellites Using Coulomb Forces,” Proceedings of the KSAS-JSASS Joint International Symposium on Aerospace Engineering, Nagoya, Japan, Oct. 12–14, 2005.
- “A Glimpse of Hindustan Aeronautics Limited, Korwa Division,Amethi, India,” as a part of B. S. Practical Training from May 2, 1988 to June 6, 1988 at Hindustan Aeronautics Limited, Korwa Division, Amethi, India.
- “Optimization of CNC Programming for CNC lathes,” as a part of B. S. Practical Training from May 3, 1989 to June 6, 1989 at Hindustan Aeronautics Limited, Korwa Division, Amethi, India.
- “Design of a Robot Arm for Palletizing,” as a 7th Semester B.S. Project, December 1989.
- “Design and Development of a Working Model of an Automatic Drill Jig for Cylindrical Workpieces”, as a 8th Semester B.S. Project, May 1990.
- “Development of Drive Band for AIFS Projectiles,” sponsored by Defence Research and Development Organization, Ministry of Defence, Government of India, with Prof. P. B. Sharma and Prof. T. K. Kundra , Mechanical Engineering Department, Indian Institute of Technology, Delhi, 1990.
- “Slip Characteristics between Two Concentric Rotating Discs,” as a part of M. S. course Computer Aided Design and Analysis, May 1992.
- “Design of a Six-Degree Freedom Cylindrical Configuration Robotic Manipulator,” as a part of M. S. course Mechanism and Robotics, December 1992.
- “Experimental Study of Spin Stabilization of Projectile,” sponsored under Minor Research Project by University Grants Commission, Government of India at Birla Institute of Technology and Science, Pilani, India, 1992-93.
- “Control Mechanism for Spin Stabilization of Projectile”, M. S. dissertation, 1993.
- “Balancing of Flexible Rotors using Modal Balancing Technique,” as a part of Ph. D. course Applied Dynamics and Vibration, 1994.
- “Satellite Attitude Stability and Manoeuvre through Tether,” Ph.D. Thesis, Indian Institute of Technology Kanpur, India, December 27, 1997.
- Technical Report – 1, Defence Research and Development Laboratory, Hyderabad, 1998. (confidential)
- Technical Report – 2, Defence Research and Development Laboratory, Hyderabad, 1998. (confidential)
- “Study of Flight Control System Design Using Neural Networks and Genetic Algorithms,” Report, National Aerospace Laboratory, Tokyo, Japan, 2000.
- “Dynamics and Control of Tethered Satellite System,” Report, Department of Aeronautics and Astronautics, Kyushu University, Fukuoka, Japan, 2003.
- “Proposal on Center of Space Education,” Report, Korea Advanced Institute of Science and Technology, Korea, 2004.
- “Introductory Operations Research: Theory and Applications,” Springer-Verlag, Germany, 580 pages, 2004. (co-authored with H. S. Kasana) Errata here. (.pdf)
- “Fundamentals of Spacecraft Dynamics and Control,” accepted for publication at Springer-Verlag, Germany, 2005. Solution Manual available here.
- “Aerospace Sensors and Actuators,” under preparation.
- Kumar, K. D., Bang, H. C., and Tahk, M. J., “Method for Attitude Control of Satellites in Elliptic Orbits Using Solar Radiation Pressure,” Korean Patent No. 10-2006-005456; Registration No. 10-0573876-0000; Application No. 10-2004-0054245; Date of filing: 2004-07-13; US Patent Publication No. US2006/011783 A1, Date: 2006-01-19, Application No. 11/011835, Date of Filing: 2004-12-15; European Patent No. EP 1 616 790 A1, Application No. 04027905.1, Date of filing 2004-11-24, Date of publication: 2006-01-18 Bulletin 2006/03.
- Kumar, K. D., Bang, H. C., and Tahk, M. J., “A Method for Attitude Control of Satellites using Fluid Rings,” submitted to the Korean Intellectual Property Office, Application No. 2005-30560, Date: 2005-04-13.