Fault-tolerant reconfigurable architecture for robot kinematics and dynamics computations

1991 ◽  
Vol 21 (5) ◽  
pp. 983-999 ◽  
Author(s):  
C.-T. Lin ◽  
C.S.G. Lee
Keyword(s):  
Fault Tolerant ◽  
Reconfigurable Architecture ◽  
Robot Kinematics ◽  
Kinematics And Dynamics

scholarly journals Operation Motion Planning and Principle Prototype Design of Four-Wheel-Driven Mobile Robot for High-Voltage Double-Split Transmission Lines

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Hong Jun Li ◽  
Wei Jiang ◽  
Yu Yan ◽  
An Zhang ◽  
Gan Zuo
Keyword(s):  
Transmission Lines ◽  
Simulation Analysis ◽  
Dynamics Simulation ◽  
Mobile Platform ◽  
Robot Kinematics ◽  
Kinematics And Dynamics ◽  
Joint Force ◽  
Dynamic Constraints ◽  
Working Space ◽  
Physical Prototype

In response to the problems of high labor intensity, high risk, and poor reliability of artificial live working, a four-wheel-driven spacer bar replacement mobile operation robot has been designed and developed in this paper, and the corresponding kinematic and dynamics model have been established, based on the established double models, the kinematics and dynamics numerical analysis can be realized through INVENTOR and ADAMS, respectively, based on the established kinematics and dynamics models . The results show that the simulation value of the robot joint displacement, velocity, acceleration, and joint force can be able to meet the requirements of kinematic and dynamic constraints during the robot operation. The robot prototype can meet the requirement of dual-split robot working space and the operation joint force control, which not only extend the robot adaptability to the multisplit lines heterogeneous operation environment but also provide an important theoretical technical support for the exploit of the robot physical prototype. Through the robot kinematics and dynamics analysis, the robot mechanical structure parameters and electrical control parameters have been effectively optimized. The weight and cost of the robot have been reduced by 12% and 15% compared to the existed studies. Finally, the robot principle prototype mobile platform has been developed, and the correctness of robot kinematics and dynamics simulation analysis has been verified through the robot principle prototype mobile platform.

Mobile Inspection Robot

2013 ◽  
Vol 319 ◽  
pp. 385-392 ◽  
Author(s):  
Michał Ciszewski ◽  
Tomasz Buratowski ◽  
Mariusz Giergiel ◽  
Krzysztof Kurc ◽  
Piotr Małka
Keyword(s):  
Control System ◽  
Mobile Robot ◽  
Cross Section ◽  
Design Process ◽  
Laboratory Tests ◽  
Robot Kinematics ◽  
Kinematics And Dynamics ◽  
Positioning System ◽  
Pipe Inspection ◽  
Inspection Robot

In this paper, the design of a tracked in-pipe inspection mobile robot with a flexible drive positioning system is presented. The robot would be able to operate in circular and rectangular pipes and ducts, oriented horizontally and vertically with cross section greater than 200 mm. The paper presents a complete design process of a virtual prototype, with usage of CAD/CAE software. Mathematical descriptions of the robot kinematics and dynamics that aim on development of a control system are presented. Laboratory tests of the utilized tracks are included. Performed tests proved conformity of the design with stated requirements, therefore a prototype will be manufactured basing on the project.

Gait synthesis for hexapod robots with a locked joint failure

Robotica ◽  
2005 ◽  
Vol 23 (6) ◽  
pp. 701-708 ◽  
Author(s):  
Jung-Min Yang
Keyword(s):  
Fault Tolerant ◽  
Static Stability ◽  
Walking Robots ◽  
Robot Kinematics ◽  
Hexapod Robot ◽  
Joint Failure ◽  
Straight Line ◽  
Gait Synthesis ◽  
Gait Study

This paper presents a strategy for generating fault-tolerant gaits of hexapod walking robots. A multi-legged robot is considered to be fault-tolerant with respect to a given failure if it is capable of continuing its walking after the occurrence of a failure, maintaining its static stability. The failure concerned in this paper is a locked joint failure for which a joint in a leg cannot move and is locked in place. The kinematic condition for the existence of fault-tolerant gaits is derived for straight-line walking of a hexapod robot on even terrain. An algorithm for generating fault-tolerant gaits is described and, especially, periodic gaits are presented for forward walking of a hexapod robot with a locked joint failure. The leg sequence and the stride length formula are analytically driven based on gait study and robot kinematics. A case study on post-failure walking of a hexapod robot with the wave gait is shown to demonstrate the applicability of the proposed method.

Tools to Assist Teaching and Learning of Mechanisms, Robotics, and Biomechanics

2010 ◽  
Author(s):  
Robert L. Williams
Keyword(s):  
Real World ◽  
Teaching And Learning ◽  
Human Motion ◽  
Robot Kinematics ◽  
Kinematics And Dynamics ◽  
Ohio University ◽  
Internet Resources ◽  
Real World Applications ◽  
Dynamics And Control ◽  
And Control

This paper details some innovations developed at Ohio University for augmenting the teaching and learning of mechanism kinematics and dynamics, robot kinematics, dynamics, and control, and the musculoskeletal biomechanics of human motion. Common to all three courses are NotesBooks, significant MATLAB use in class, homework, and projects, term projects simulated from real-world applications, and Internet resources developed and hosted by the author at Ohio University.

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