학술논문

MODELING ANALYSIS OF A SPATIAL 3T CABLE-DRIVEN PARALLEL ROBOT
Document Type
article
Author
Source
Jixie qiangdu, Vol 37, Pp 689-694 (2015)
Subject
Spatial 3T
Cable-driven
Cable transformation
Dexterity
Trajectory planning
Mechanical engineering and machinery
TJ1-1570
Materials of engineering and construction. Mechanics of materials
TA401-492
Language
Chinese
ISSN
1001-9669
Abstract
A spatial 3T cable-driven parallel robot with four cables has been designed and manufactured. The kinematic models of the 3DOF cable-driven parallel robot have been established to discuss the deformation of cables in the large scale system. To check for the system’s zero position and analysis the error,the forward solution of kinematics has been carried out by Newton-Raphson iterative method. After analyzing the distribution of the dexterity,target tracks have been planned in the work space. Based on the inverse kinematics,the ideal curves of cables’ length have been reached. Based on catenary theory,the change of cables’ length have been calculated which is caused by the transformation,the result provide the theory basis for subsequent control.