Modeling and Analysis of a Cable-pulley Actuated Lifting System

This paper deals with modeling and system analysis of a cable-pulley actuated lifting system. The lifting system consists of two pulleys: the drive pulley is attached to a motor and winded with a flexible and extensible cable; the movable pulley is suspended by the cable and rigidly coupled with a payload. The motion of the movable pulley in a 2D plane is captured by the dynamics of the lifting system that are derived via the Lagrange method. With the consideration of flexibility and extensibility of the cable, vibration and modal analysis of the dynamical model is performed. Numerical simulation results are shown to demonstrate the characteristics of the system. Copyright (c) 2022 The Authors. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0)