Title :
A scheme for manipulating a passive object using an active plate
Author :
Aoyama, Tadayoshi ; Harada, Yuji ; Qingyi Gu ; Takaki, Takeshi ; Ishii, Idaku
Author_Institution :
Dept. of Syst. Cybern., Hiroshima Univ., Higashi-Hiroshima, Japan
Abstract :
We propose a novel scheme for manipulating a passive object using an active plate. The objective of this study is to control an object´s orientation with respect to the gravitational force direction by using an active plate for realizing hitherto unrealized object motion. In this context, motions of the object and active plate are designed to be cyclic. A state vector composed of the object´s angle and angular velocity is defined, and the cyclic motion is expressed as a nonlinear discrete system. Fixed points of the state vector are searched for in the designed cyclic motion. A stability analysis around the fixed points is conducted using a Poincaré map. As a result, the fixed points are shown to be asymptotically stable. Finally, experimental results are used to verify that the object´s angle can be manipulated with the designed cyclic motion using the plate.
Keywords :
Poincare mapping; asymptotic stability; discrete systems; manipulators; nonlinear control systems; vectors; Poincare map; active plate; angular velocity; asymptotic stability; cyclic motion; fixed points; gravitational force direction; hitherto unrealized object motion; nonlinear discrete system; object angle; object orientation; passive object manipulation; state vector; Angular velocity; Dynamics; Eigenvalues and eigenfunctions; Force; Robot sensing systems; Stability analysis;
Conference_Titel :
Robotics and Automation (ICRA), 2015 IEEE International Conference on
DOI :
10.1109/ICRA.2015.7139536