Modeling and Dynamic Behavior Analysis of Rope‐Guided Traction System with Terminal Tension Acting on Compensating Rope

Abstract

Traction systems are a good choice for high-rise lift systems, especially in deep wells. With increasing lift depth and weight, rope-guided traction systems have become an essential design methodology in the mine lift field. In this paper, a comprehensive mathematical model is established to simulate the dynamical responses of a rope-guided traction system with different terminal tensions acting on the compensating rope. The results and analysis presented in this paper reveal dynamical responses in terms of longitudinal and transverse vibration. Additionally, a wide range of resonances occurs in the target system. Differences in the dynamical responses between a traditional traction system and tensioned traction system are analysed in detail. Through comparison and analysis, it is determined that terminal tension plays an important role in the suppression of longitudinal vibration in a system. However, changes in the amplitude of longitudinal vibration are independent of terminal tension, which only affects longitudinal elastic elongation and does not affect the basic shape of longitudinal and transverse vibrations. Based on this analysis, it can be concluded that longitudinal vibration suppression can be achieved by applying proper tension on the compensating rope to ensure that it reaches a tensioning state. Continuing to increase terminal tension is not beneficial for the vibration suppression of a system. The results presented in this paper will serve as a valuable guide for the design and optimisation of traction systems.

Large deformation of longitudinal-torsional-lateral coupled effect of round balance rope in mine friction hoisting system

“…Flexible cables are light in weight and easy to fold which have been widely employed in diverse engineering applications, such as suspension bridges, 1 cable-pulley systems, 2 aerospace tether transportation system, 3 elevators, 4,5 overhead crane system, 6,7 cable-suspended swinging system, 8 and mine hoisting systems. 9 Hoisting ropes, conveyances, guide sheave, traction sheave, and balance ropes constitute multi-rope friction hoisting system in mine shaft. The upper ends of the balance rope are suspended at the bottom of two conveyances via balance rope suspension rotors (BRSRs).…”

Dynamic Behavior Analysis of a High-Rise Traction System with Tensioned Pulley Acting on Compensating Rope

“…In this paper, the adaptive boundary control method is proposed for position regulation and vibration degradation of the system, where adaptation laws and a boundary disturbance observer are formulated to handle system uncertainties. Wang [22] analyzes the traction system of the tensioned compensating rope and traditional suspension compensating rope, and finds out that the longitudinal vibration of the system can restrain to a certain extent by tensioning compensating rope. In [10,12], the vibration control method of lifting system is proposed.…”