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Conference Paper
Caldwell, T. M., and T. D. Murphey, "Projection-based optimal mode scheduling", IEEE Conference on Decision and Control, 2013.
Caldwell, T. M., and T. D. Murphey, "Projection-Based Switched System Optimization: Absolute Continuity of the Line Search", IEEE Int. Conf. on Decision and Control (CDC), 2012.  (474.23 KB)
Caldwell, T. M., and T. D. Murphey, "Single integration optimization of linear time-varying switched systems", American Control Conference (ACC), 2011: IEEE, pp. 2024–2030, 2011.  (258.46 KB)
Caldwell, T. M., and T. D. Murphey, "An adjoint method for second-order switching time optimization", Decision and Control (CDC), 2010 49th IEEE Conference on: IEEE, pp. 2155–2162, 2010.  (335.11 KB)
Caldwell, T. M., and T. D. Murphey, "Relaxed optimization for mode estimation in skid steering", Robotics and Automation (ICRA), 2010 IEEE International Conference on, pp. 5423 -5428, may, 2010.  (427.02 KB)
Caldwell, T. M., and T. D. Murphey, "Second-order optimal estimation of slip state for a simple slip-steered vehicle", Automation Science and Engineering, 2009. CASE 2009. IEEE International Conference on: IEEE, pp. 133–139, 2009.  (510.44 KB)
Chubb, E. C., J. E. Colgate, and M. A. Peshkin, "ShiverPad: A device capable of controlling shear force on a bare finger", EuroHaptics conference, 2009 and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics 2009. Third Joint: IEEE, pp. 18–23, 2009.
Chib, V. S., J. L. Patton, K. M. Lynch, and F. A. Mussa-Ivaldi, "The effect of stiffness and curvature on the haptic identification of surfaces", Eurohaptics Conference, 2005 and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2005. World Haptics 2005. First Joint: IEEE, pp. 126–131, 2005.
Chib, V. S., J. L. Patton, K. M. Lynch, and F. A. Mussa-Ivaldi, "Haptic discrimination of perturbing fields and object boundaries", Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2004. HAPTICS'04. Proceedings. 12th International Symposium on: IEEE, pp. 375–382, 2004.
Choudhury, P., B. Stephens, and K. M. Lynch, "Inverse kinematics-based motion planning for underactuated systems", Robotics and Automation, 2004 IEEE International Conference on, vol. 3: IEEE, pp. 2242–2248, 2004.
Colgate, J. E., M. A. Peshkin, and S. H. Klostermeyer, "Intelligent assist devices in industrial applications: a review", Intelligent Robots and Systems, 2003.(IROS 2003). Proceedings. 2003 IEEE/RSJ International Conference on, vol. 3: IEEE, pp. 2516–2521, 2003.
Choudhury, P., and K. M. Lynch, "Rolling manipulation with a single control", Control Applications, 2001.(CCA'01). Proceedings of the 2001 IEEE International Conference on: IEEE, pp. 1089–1094, 2001.
Choudhury, P., and K. M. Lynch, "Controllability of single input rolling manipulation", Robotics and Automation, 2000. Proceedings. ICRA'00. IEEE International Conference on, vol. 1: IEEE, pp. 354–360, 2000.
Colgate, J. E., M. A. Peshkin, and W. Wannasuphoprasit, "Nonholonomic haptic display", Robotics and Automation, 1996. Proceedings., 1996 IEEE International Conference on, vol. 1: IEEE, pp. 539–544, 1996.
Colgate, J. E., M. C. Stanley, and J. M. Brown, "Issues in the haptic display of tool use", Intelligent Robots and Systems 95.'Human Robot Interaction and Cooperative Robots', Proceedings. 1995 IEEE/RSJ International Conference on, vol. 3: IEEE, pp. 140–145, 1995.
Colgate, J. E., and J. M. Brown, "Factors affecting the z-width of a haptic display", Robotics and Automation, 1994. Proceedings., 1994 IEEE International Conference on: IEEE, pp. 3205–3210, 1994.
Colgate, J. E., and G. G. Schenkel, "Passivity of a class of sampled-data systems: Application to haptic interfaces", American Control Conference, 1994, vol. 3: IEEE, pp. 3236–3240, 1994.
Colgate, J. E., M. C. Stanley, and G. G. Schenkel, "Dynamic range of achievable impedances in force-reflecting interfaces", Optical Tools for Manufacturing and Advanced Automation: International Society for Optics and Photonics, pp. 199–210, 1993.
Colgate, J. E., P. E. Grafing, M. C. Stanley, and G. G. Schenkel, "Implementation of stiff virtual walls in force-reflecting interfaces", Virtual Reality Annual International Symposium, 1993., 1993 IEEE: IEEE, pp. 202–208, 1993.
Colgate, J. E., "Power and impedance scaling in bilateral manipulation", Robotics and Automation, 1991. Proceedings., 1991 IEEE International Conference on: IEEE, pp. 2292–2297, 1991.
Colgate, J. E., "Robust Impedance Shaping via Bilateral Manipulation", American Control Conference, 1991: IEEE, pp. 3070–3071, 1991.
Journal Article
Caldwell, T. M., and T. D. Murphey, "Projection-Based Switched System Optimization", American Control Conference, 2012.  (166.88 KB)
Caldwell, T. M., and T. D. Murphey, "Switching mode generation and optimal estimation with application to skid-steering", Automatica, vol. 47, no. 1, pp. 50 - 64, 2011.  (645.73 KB)
Curet, O. M., N. A. Patankar, G. V. Lauder, and M. A. MacIver, "Aquatic manoeuvering with counter-propagating waves: a novel locomotive strategy", Journal of The Royal Society Interface, vol. 8, no. 60: The Royal Society, pp. 1041–1050, 2011.  (2.36 MB)
Curet, O. M., N. A. Patankar, G. V. Lauder, and M. A. MacIver, "Mechanical properties of a bio-inspired robotic knifefish with an undulatory propulsor", Bioinspiration & Biomimetics, vol. 6, no. 2: IOP Publishing, pp. 026004, 2011.  (584.62 KB)
Chubb, E. C., J. E. Colgate, and M. A. Peshkin, "Shiverpad: A glass haptic surface that produces shear force on a bare finger", Haptics, IEEE Transactions on, vol. 3, no. 3: IEEE, pp. 189–198, 2010.
Curet, O. M., I. K. AlAli, M. A. MacIver, and N. A. Patankar, "A versatile implicit iterative approach for fully resolved simulation of self-propulsion", Computer Methods in Applied Mechanics and Engineering, vol. 199, no. 37: Elsevier, pp. 2417–2424, 2010.  (1.1 MB)
Chib, V. S., M. A. Krutky, K. M. Lynch, and F. A. Mussa-Ivaldi, "The separate neural control of hand movements and contact forces", The Journal of Neuroscience, vol. 29, no. 12: Society for Neuroscience, pp. 3939–3947, 2009.
Chiel, H. J., L. H. Ting, Ö. Ekeberg, and M. J. Z. Hartmann, "The brain in its body: motor control and sensing in a biomechanical context", The Journal of Neuroscience, vol. 29, no. 41: Soc Neuroscience, pp. 12807–12814, 2009.
Curet, O. M., M. A. MacIver, and N. A. Patankar, "Multi-directional thrusting using oppositely traveling waves in knifefish swimming", Bulletin of the American Physical Society, vol. 54: APS, 2009.
Curet, O. M., I. K. AlAli, N. A. Patankar, and M. A. MacIver, "Fully resolved simulation of self-propulsion of aquatic organisms", Bulletin of the American Physical Society, vol. 53: APS, 2008.
Chib, V. S., M. A. Krutky, K. M. Lynch, and F. A. M. Ivaldi, "The nervous system independently controls motion and force", Proc. 17th Ann. Neural Control of Movement Meeting, 2007.
Curet, O. M., N. A. Patankar, and M. A. MacIver, "An algorithm for low to moderate Reynolds number swimming", Bulletin of the American Physical Society, vol. 52: APS, 2007.
Curet, O. M., A. A. Shirgaonkar, N. A. Patankar, and M. A. MacIver, "Simulation of bio-locomotion by a momentum redistribution technique for self-propulsion", Bulletin of the American Physical Society, vol. 52: APS, 2007.
Chib, V. S., J. L. Patton, K. M. Lynch, and F. A. Mussa-Ivaldi, "Haptic identification of surfaces as fields of force", Journal of neurophysiology, vol. 95, no. 2: Am Physiological Soc, pp. 1068, 2006.
Curet, O. M., N. A. Patankar, and M. A. MacIver, "Towards direct numerical simulation of freely swimming fish.", Bulletin of the American Physical Society: APS, 2006.
Choudhury, P., and K. M. Lynch, "Trajectory planning for kinematically controllable underactuated mechanical systems", Algorithmic Foundations of Robotics V: Springer, pp. 559–576, 2004.
Colgate, J. E., and K. M. Lynch, "Control problems solved by a fish’s body and brain: A review", Mechanical Engineering Department, Northwestern University, 2004.
Colgate, J. E., A. F. McKenna, and B. Ankenman, "IDEA: implementing design throughout the curriculum at Northwestern", International Journal of Engineering Education, vol. 20, no. 3: TEMPUS PUBLICATIONS, pp. 405–411, 2004.
Colgate, J. E., and K. M. Lynch, "Mechanics and control of swimming: a review", Oceanic Engineering, IEEE Journal of, vol. 29, no. 3, pp. 660 - 673, july, 2004.  (433.52 KB)
Choudhury, P., and K. M. Lynch, "Rolling manipulation with a single control", The International Journal of Robotics Research, vol. 21, no. 5-6: SAGE Publications, pp. 475–487, 2002.
Colgate, J. E., "Brian E. Miller J. Edward Colgate Department of Mechanical Engineering Northwestern University Evanston, IL 60208, USA", Proceedings of the ASME Dynamic Systems and Control Division–1998: presented at the 1998 ASME International Mechanical Engineering Congress and Exposition: November 15-20, 1998, Anaheim, California, vol. 64: Amer Society of Mechanical, pp. 257, 1998.
Chang, B., and J. E. Colgate, "Real-time impulse-based simulation of rigid body systems for haptic display", Dynamic Systems and Control Division. Proceedings. ASME, vol. DSC-58, pp. 145-152, 1997.
Colgate, J. E., and G. G. Schenkel, "Passivity of a class of sampled-data systems: Application to haptic interfaces", Journal of Robotic Systems, vol. 14, no. 1: New York, NY: Wiley, c1984-c2005., pp. 37–47, 1997.
Colgate, J. E., J. Edward, M. A. Peshkin, and W. Wannasuphoprasit, Cobots: Robots for collaboration with human operators, : Citeseer, 1996.
Colgate, J. E., "Coordinate transformations and logical operations for minimizing conservativeness in coupled stability criteria", TRANSACTIONS-AMERICAN SOCIETY OF MECHANICAL ENGINEERS JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL, vol. 116: AMERICAN SOCIETY MECHANICAL ENGINEERS, pp. 643–643, 1994.
Colgate, J. E., "Coupled stability of multiport systems, theory and experiments", Dynamic Systems Measurement and Control, Journal of, vol. 116, no. 3, pp. 419-428, 1994.
Colgate, J. E., H. Matsumoto, and W. Wannasuphoprasit, "Linear electrostatic actuators: gap maintenance via fluid bearings", Robotics and computer-integrated manufacturing, vol. 10, no. 5: Elsevier, pp. 365–376, 1993.
Colgate, J. E., "Robust impedance shaping telemanipulation", Robotics and Automation, IEEE Transactions on, vol. 9, no. 4: IEEE, pp. 374–384, 1993.
Colgate, J. E., "Stability of manipulators interacting with unstructured and structured dynamic environments", Proceedings of the IMACS/SICE International Symposium on Robotics, Mechatronics, and Manufacturing Systems. Kobe, Japan, pp. 1025–1030, 1992.
Colgate, J. E., and N. Hogan, "Robust control of dynamically interacting systems", International Journal of Control, vol. 48, no. 1: Taylor & Francis, pp. 65–88, 1988.
Colgate, J. E., and N. Hogan, "Robust control of manipulator interactive behavior", Modeling and Control of Robotic Manipulators and Manufacturing Processes. ASME, New York, 1987.
Colgate, SO., and J. E. Colgate, "Effusive flow conductance of shielded circular channels", Vacuum, vol. 34, no. 5: Elsevier, pp. 585–589, 1984.
Patent
Colgate, J. E., and M. A. Peshkin, Haptic device with controlled traction forces, , 2012.
Colgate, J. E., M. A. Peshkin, and E. C. Chubb, Method and apparatus for increasing magnitude and frequency of forces applied to a bare finger on a haptic surface, , 2011.
Colgate, J. E., and M. A. Peshkin, Haptic device with controlled traction forces, : Google Patents, 2009.
Colgate, J. E., M. A. Peshkin, L. W. Alexander, and M. Schirru, Vibrating substrate for haptic interface, : Google Patents, 2009.
Colgate, J. E., M. A. Peshkin, L. Winfield, and M. Schirru, Vibrating substrate for haptic interface, , vol. US8780053 B2, no. US 12/383,120, 07/2014, 2009.
Colgate, J. E., P. F. Decker, S. H. Klostermeyer, A. Makhlin, D. Meer, M. A. Peshkin, M. Robie, and J. J. Santos-Munné, Methods and Apparatus for Manipulation of Heavy Payloads with Intelligent Assist devices, , 2008.
Colgate, J. E., J. J. Santos-Munné, K. Kim, A. Makhlin, M. A. Peshkin, and D. Schwandt, Detector and Stimulator for Feedback in a Prosthesis, : Google Patents, 2007.
Colgate, J. E., M. A. Peshkin, J. Glassmire, and L. Winfield, Haptic device with indirect haptic feedback, , 2007.
Colgate, J. E., M. A. Peshkin, J. Glassmire, and L. Winfield, Haptic device with indirect haptic feedback, : Google Patents, 2007.
Colgate, J. E., and A. Makhlin, Methods and apparatus for eliminating instability in intelligent assist devices, : Google Patents, 2006.
Cao, J., J. Lee, and M. A. Peshkin, Real-time draw-in sensors and methods of fabrication, : Northwestern University, 2004.
Colgate, J. E., M. A. Peshkin, J. J. Santos-Munné, A. Makhlin, P. F. Decker, and S. H. Klostermeyer, Control handle for intelligent assist devices, : Google Patents, 2004.
Cao, J., J. Lee, and M. A. Peshkin, Real-time draw-in sensors and methods of fabrication, , vol. US6769280 B2, no. US 10/140,916, 08/2004, 2002.
Colgate, J. E., and M. A. Peshkin, Cobots, : Google Patents, 1999.
Colgate, J. E., and M. A. Peshkin, Passive robotic constraint devices using non-holonomic transmission elements, : Google Patents, 1999.
Colgate, J. E., and M. E. Axland, Linear electrostatic actuator with means for concatenation, : Google Patents, 1993.
Thesis
Colgate, J. E., The control of dynamically interacting systems, : Massachusetts Institute of Technology, 1988.
Colgate, J. E., The design of a robotic gripper capable of repositioning objects within its grasp, : Massachusetts Institute of Technology, Department of Physics, 1983.