A robot capable of operating in active pipelines would be of great commercial and industrial benefit. This paper outlines the requirements for such a robot and considers the advantages and disadvantages of existing systems. A new design for an inchworm robot based on the Gough-Stewart parallel platform is presented. The use of inchworm locomotion keeps the control system relatively simple, whil...

Wire-driven parallel robot (WDPR) is a special class of parallel robot in which the rigid legs are replaced by wires, with potential advantages in terms of intrusivity and workspace. Although the study of WDPR seems to be a well-addressed subject, we will show that there are still numerous challenging open issues in this

the well-known electro-mechanical analogy that equates current, voltage, resistance, inductance and capacitance to force, velocity, damping, spring constant and mass has a shortcoming in that mass can only be used to simulate a capacitor which has one terminal connected to ground. a new model that was previously proposed by the authors that combines a mass with a pulley (mp) is shown to simulat...