Modeling, Analysis and Trajectory Planning of a 5 Degree of Freedom Robotic Arm for a Transmission Line Crossing Robot

Author(s):  
C. M. Shruthi ◽  
A. P. Sudheer ◽  
M. L. Joy
Robotica ◽  
2010 ◽  
Vol 29 (5) ◽  
pp. 745-756 ◽  
Author(s):  
Hao Gu ◽  
Marco Ceccarelli

SUMMARYIn this paper, we have reported a trajectory planning for a 1-degree-of-freedom clutched robotic arm. This novel robotic arm has only one actuator, but it can work in a spatial space by using a proper clutch system and a suitable trajectory planning. An algorithm has been proposed for generating a prescribed trajectory by means of seven operation modes, which are generated by different states of clutches.


Author(s):  
Albert C. J. Luo ◽  
Bo Yu

In this paper, galloping vibrations of a lightly iced transmission line are investigated through a two-degree-of-freedom (2-DOF) nonlinear oscillator. The 2-DOF nonlinear oscillator is used to describe the transverse and torsional motions of the galloping cables. The analytical solutions of periodic motions of galloping cables are presented through generalized harmonic balanced method. The analytical solutions of periodic motions for the galloping cable are compared with the numerical solutions, and the corresponding stability and bifurcation of periodic motions are analyzed by the eigenvalues analysis. To demonstrate the accuracy of the analytical solutions of periodic motions, the harmonic amplitudes are presented. This investigation will help one better understand galloping mechanism of iced transmission lines.


Author(s):  
Hossein Dehghani ◽  
Yue Sun ◽  
Lou Cubrich ◽  
Dmitry Oleynikov ◽  
Shane Farritor ◽  
...  

2017 ◽  
Vol 31 (24) ◽  
pp. 1750140 ◽  
Author(s):  
Dongjie Li ◽  
Yu Fu ◽  
Liu Yang

For further research on the microparticles trajectory in the process of micromanipulation, the paper modeled on the coupling dynamic of three-degree-of-freedom micromanipulator which is based on piezoelectric ceramic. In the micromanipulation, the transformation of certain movement direction can generate a corresponding change in the coupling in three-degree-of-freedom micromanipulator movement, the fuzzy PID method was adopted by the control system of this study, and the modeling analysis was performed on the control system. After completing the above modeling, the simulation model is built by the MATLAB Simulink software. The simulation output results are basically in accordance with the actual trajectory, which achieve the successful research purposes of coupling dynamics model for three-degree-of-freedom micromanipulator and application of fuzzy PID method.


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