The paper studies the use of energy-based forward and inverse kinematics procedures for calculation of operational space of tensegrity robotics structures. Tensegrity structures are compliant and highly dynamical, whi...
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ISBN:
(数字)9781728187631
ISBN:
(纸本)9781728187648
The paper studies the use of energy-based forward and inverse kinematics procedures for calculation of operational space of tensegrity robotics structures. Tensegrity structures are compliant and highly dynamical, which makes them a favorable robotics component for a number of difficult tasks (such as collaborative robotics, space exploration and others), but at the same times make trajectory planning and control highly non-trivial. In the paper it is demonstrated that the studied forward and inverse kinematics methods can be used to find workspaces of tensegrity structures, using six bar structure as an example. It is shown that the method can adjust to the choice of actuated and passive elastic elements, making it a design tool which maps the actuation pattern to the resulting workspace or to the law of change of the rest lengths of the actuated elastic elements.
This paper describes an energy-based forward kinematics method for tensegrity robotics structures. The method can be implemented as a nonlinear optimization procedure and solved with standard optimization algorithms. ...
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ISBN:
(数字)9781728152370
ISBN:
(纸本)9781728152387
This paper describes an energy-based forward kinematics method for tensegrity robotics structures. The method can be implemented as a nonlinear optimization procedure and solved with standard optimization algorithms. Based on this result, the paper proposes a local linearization-based approach to inverse kinematics for tensegrity robots, for which a gradient descent-like algorithms is formulated. A preliminary study of the algorithm numerical behavior is given, and examples of the use cases for both forward and inverse kinematics methods are provided. It is shown that the method allows planing trajectories in the Cartesian space for the end effector and discover the desired law of change of the rest lengths of the actuated elastic elements.
We have analyzed EEG signals of children during cognitive load of specific type in order to estimate level of attention during this task. EEG signals were recorded in accordance with proposed design of experiment. For...
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This paper presents the most important steps of the wrist rehabilitation robot design. In this work, kinematic synthesis problem of a 3-RRR spherical parallel manipulator is considered including a solution for forward...
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This paper discusses the stiffness parameters identification for an anthropomorphic walking platform. The robot stiffness model build using a virtual joint model by introducing additional springs, then the parameters ...
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The paper presents an approach for interactive programming of the robotic manipulator using mixed reality. The developed system is based on the HoloLens glasses connected through Robotic Operation System to Unity engi...
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ISBN:
(数字)9781728173955
ISBN:
(纸本)9781728173962
The paper presents an approach for interactive programming of the robotic manipulator using mixed reality. The developed system is based on the HoloLens glasses connected through Robotic Operation System to Unity engine and robotic manipulators. The system gives a possibility to recognize the real robot location by the point cloud analysis, to use virtual markers and menus for the task creation, to generate a trajectory for execution in the simulator or on the real manipulator. It also provides the possibility of scaling virtual and real worlds for more accurate planning. The proposed framework has been tested on pick-and-place and contact operations execution by UR10e and KUKA iiwa robots.
In this paper we present a technique for finding periodic gaits for five-link planar bipedal robot with point feet. Unlike most works that are limited to the consideration of only underactuated single support phase (S...
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The study is focused on velocity control of a manipulator motion in the case when the precise execution of commands cannot be guaranteed because of the imperfection of the control system or interaction with the robot ...
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This paper is focused on a problem of using reaction predictors in the control pipeline of walking robots. The use of such predictors has been proposed for bipedal robots and the main advantage of this proposal is tha...
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In this work, the role of the amplitude and frequency of the periodically varying neuronal firing rate in emergence of complicated dynamical modes in recently proposed mathematical model describing the change of extra...
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