Force control in multi-degree-of-freedom flexible systems - sensor less technique
Khalil, Islam S. M. and Naskali, Ahmet Teoman and Şabanoviç, Asif (2009) Force control in multi-degree-of-freedom flexible systems - sensor less technique. In: IEEE International Symposium on Computational Intelligence in Robotics and Automation, Daejeon, South Korea
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This paper presents a novel sensorless force control algorithm for Multi-degree-of-freedom flexible systems which enables controlling the interaction forces with the environment without using force sensors. The coupled nature of flexible system dynamics makes it possible to estimate externally applied forces or torques that arise due to system's interaction with the environment. Disturbance and flexibility are simultaneously utilized to estimate system parameters, dynamics and externally applied forces or torques. The interaction torque estimate is then used to accomplish sensorless torque control assignment. This paper attempts to keep the flexible plant free from any measurement while performing a torque control assignment. However, actuator's parameters and variables are assumed to be available.
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