Feedback Linearization of Inertially Actuated Jumping Robots

• Published in: Actuators Vol. 10; no. 6; p. 114
• Main Authors: Cox, Adam, Razzaghi, Pouria, Hurmuzlu, Yildirim
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 2021
• Subjects: Basketball; Controllability; Controllers; Design; Family trees; Feedback linearization; inertially actuation; jumping robot; Locomotion; Parameter identification; Power; Robot dynamics; Robots; Three dimensional motion
• ISSN: 2076-0825; 2076-0825
• DOI: 10.3390/act10060114

Inertially Actuated Jumping Robots (IAJR) provide a promising new means of locomotion. The difficulty of IAJR is found in the hybrid nature of the ground contact/flying dynamics. Recent research studies in our Systems Lab have provided a family tree of inertially actuated locomotion systems. The proposed Tapping Robot is the most prompt member of this tree. In this paper, a feedback linearization controller is introduced to provide controllability given the 3-dimensional motion complexity. The research objective is to create a general controller that can regulate the locomotion of Inertially Actuated Jumping Robots. The expected results can specify a desired speed and/or jump height, and the controller ensures the desired values are achieved. The controller can achieve the greatest response for the Basketball Robot at a maximum jump height of 0.25 m, which is greater than the former performance with approximately 0.18 m. The design paradigm used on the Basketball Robot was extended to the Tapping Robot. The Tapping Robot achieved a stable average forward velocity of 0.0773 m/s in simulation and 0.157 m/s in experimental results, which is faster than the forward velocity of former robot, Pony III, with 0.045 m/s.