Abstract
Introducing compliant actuation to robotic joints can obtain better disturbance rejection performance and higher power efficiency than conventional stiff actuated systems. In this paper, inspired by human joints, a novel compliant actuator applied to underactuated bipedal robot is proposed. After modeling the stiffness of the compliant actuator, this paper gives the configuration of the bipedal robot actuated by compliant actuators. Compared with the elastic structure of MABEL, the compliant element of our robot is simplified. Based on the dynamics of the compliant actuator-driven bipedal robot, a feedback linearization controller is presented to implement position control of the compliant actuator for power efficiency analysis and stiffness optimization. Co-simulations of MATLAB and ADAMS are performed under the defined control trajectory by altering actuator stiffness. The simulation results indicate that, compared with the actuator maintaining very high stiffness like a rigid actuator, the power efficiency of the compliant actuator is improved, and the stiffness optimized to 375 N•m/rad can reach the highest power efficiency.
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References
Ham, R., Sugar, T.G., Vanderborght, B., et al.: Compliant actuator designs. IEEE Robot. Autom. Mag. 16(3), 81–94 (2009)
Ishikawa, M., Komi, P.V., Lepola, G.V., et al.: Muscle tendon interaction and elastic energy usage in human walking. J. Appl. Physiol. 99(2), 603–608 (2005)
Laffranchi, M., Tsagarakis, N. G., Cannella, F., et al.: Antagonistic and series elastic actuators: a comparative analysis on the energy consumption. In: IEEE International Conference on Intelligent Robots and Systems, St. Louis, USA, pp. 5678–5684 (2009)
Roberts, T.J., Marsh, R.L., Weyand, P.G., et al.: Muscular force in running turkeys: the economy of minimizing work. Science 275(5303), 1113–1115 (1997)
Hurst, J.W.: The electric cable differential leg: a novel design approach for walking and running. Int. J. Humanoid Rob. 8(2), 301–321 (2011)
Li, Z., Tsagarakis, N.G., Caldwell, D.G.: A passivity based admittance control for stabilizing the compliant humanoid COMAN. In: IEEE-RAS International Conference on Humanoid Robots, Osaka, Japan, pp. 44–49 (2012)
Ham, R.V., Vanderborght, B., Damme, M.V., et al.: MACCEPA, the mechanically adjustable compliance and controllable equilibrium position actuator: design and implementation in a biped robot. Robot. Auton. Syst. 55(10), 761–768 (2007)
Tsagarakis, N.G., Morfey, S., Cerda, G.M., et al.: Compliant humanoid coman: optimal joint stiffness tuning for modal frequency control. In: IEEE International Conference on Robotics and Automation, Karlsruhe, Germany, pp. 673–678 (2013)
Grizzle, J.W., Chevallereau, C., Sinnet, R.W., et al.: Models, feedback control, and open problems of 3D bipedal robotic walking. Automatica 50(8), 1955–1988 (2014)
Collins, S., Ruina, A., Tedrake, R., et al.: Efficient bipedal robots based on passive-dynamic walkers. Science 307(5712), 1082–1085 (2005)
Chevallereau, C., Gabriel, A., Aoustin, Y., et al.: Rabbit: a testbed for advanced control theory. IEEE Control Syst. Mag. 23(5), 57–79 (2003)
Grizzle, J., Hurst, J., Morris, B., et al.: MABEL, a new robotic bipedal walker and runner. In: American Control Conference, St. Louis, USA, pp. 2030–2036 (2009)
Yadukumar, S.N., Pasupuleti, M., Ames, A.D.: Human-inspired underactuated bipedal robotic walking with AMBER on flat-ground, upslope and uneven terrain. In: IEEE/RSJ International Conference on Intelligent Robots and System, Vilamoura, Portugal, pp. 2478–2483 (2012)
Sreenath, K., Park, H.W., Poulakakis, I., et al.: A compliant hybrid zero dynamics controller for stable, efficient and fast bipedal walking on MABEL. Int. J. Robot. Res. 30(9), 1170–1193 (2011)
Isidori, A.: Nonlinear Control Systems. Springer Science and Business Media, London (2013)
Luca, A.D., Farina, R., Lucibello, P.: On the control of robots with visco-elastic joints. In: IEEE International Conference on Robotics and Automation, Barcelona, Spain, pp. 4297–4302 (2005)
Wang, Y., Ding, J., Xiao, X.: Periodic stability for 2-D biped dynamic walking on compliant ground. In: International Conference on Intelligent Robotics and Applications, Portsmouth, UK, pp. 369–380 (2015)
Acknowledgment
This research is sponsored by National Natural Science Foundation of China (NSFC, Grant No. 51175383).
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Zhang, Q., Xiao, X., Guo, Z. (2016). Power Efficiency-Based Stiffness Optimization of a Compliant Actuator for Underactuated Bipedal Robot. In: Kubota, N., Kiguchi, K., Liu, H., Obo, T. (eds) Intelligent Robotics and Applications. ICIRA 2016. Lecture Notes in Computer Science(), vol 9834. Springer, Cham. https://doi.org/10.1007/978-3-319-43506-0_16
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DOI: https://doi.org/10.1007/978-3-319-43506-0_16
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