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One of the main concerns in the control of over-constrained cable driven parallel mechanisms is the handling of the tension distribution, which is crucial to the proper mechanism behaviour. For example, it dictates the power consumption and stiffness of the mechanism. One problem that remains to be addressed is the handling of cable tensions when the end-effector moves beyond its wrench-feasible workspace,...
A cable-driven parallel robot (CDPR) is a special type of parallel robot. In the past two decades, CDPRs have been attracted a lot of attention since they have various advantages such as large workspace, low energy consumption, heavy payload capability and easy re-configurability. Especially, the greatest strength is that workspace can be expandable easily. CDPRs have enough large workspace inside...
Cable-driven parallel robots have a wide range of applications due to its unique characteristics of large workspace and high payload and dynamics. One of its promising industrial applications is high speed material handling allowed by high dynamics of the cable robots. The high speed material handling has been mostly performed by traditional parallel robots, such as delta robots whose workspace and...
Cable-driven parallel robot (CDPR) is one of robots hard to dealing with because of their nonlinear characteristics based on the elasticity of cables. This paper suggests a design of sliding-mode controller as a solution to control the over-constrained planar CDPR with consideration of cable stiffness and motor dynamics. The system model has 4 elastic cables with linear stiffness force and motor dynamics...
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