Mechatronic stiffness of cable-driven mechanisms: a study on production machine model

Abstract

Position control of the mechanical structure with naturally limited stiffness is a common problem. Moreover, the system is usually exposed to random exciting by the external force effects and yet it is needed to hold the system in the desired position. Such an example in engineering practice can be the machine tool quill slim structure, which determines the machining accuracy and the machined surface quality. The limited structure stiffness can be overcome by suitable support structure solution. In principle, it is a matter of introducing the necessary force effect in the place where it is necessary to ensure the required position. A promising means how to apply control force to the flexible structure tip can be a thin cable structure with the force actuation and proper force control. The resulting system is characterized by increased stiffness achieved in a mechatronic manner. Therefore, the introduced concept is called mechatronic stiffness. The article describes selected mechanical arrangement of the mechatronic stiffness concept, its features, behaviour and control results. The proposed approach offers a solution for precise position control of the flexible structure. An experimental device was created in parallel with the simulation experiment and preliminary simulation results are obtained. The described concept is transferable to other flexible structures such as various manipulators.

Enhancing Vibration Control in Cable–Tip–Mass Systems Using Asymmetric Peak Detector Boundary Control

“…The implementation of the control algorithm, schematically represented in Figure 3, is a challenging issue of technological development. Reference [35] describes selected mechanical arrangement of the mechatronic stiffness concept, its features, behavior, and control results.…”

“…Furthermore, the practical implementation of the control algorithm presents a considerable challenge in technological progress. Reference [35] provides a detailed account of particular mechanical configurations within the mechatronic stiffness concept, offering insights into its traits, behavior, and the achieved control outcomes.…”