scholarly journals Analysis of transverse vibration of wire rope in flexible hoisting system

2021 ◽  
Author(s):  
Shuiyuan Wu ◽  
Ping He ◽  
Xiansheng Gong
Keyword(s):  
Transverse Vibration ◽  
Wire Rope ◽  
Hoisting System

The study on crossover layouts of multi-layer winding grooves in deep mine hoists based on transverse vibration characteristics of catenary rope

2018 ◽  
Vol 233 (2) ◽  
pp. 118-132
Author(s):  
Xia Peng ◽  
Xian-Sheng Gong ◽  
Jin-Jun Liu
Keyword(s):  
High Speed ◽  
Wire Rope ◽  
Processing Method ◽  
Dynamic Responses ◽  
Deep Mine ◽  
Experimental Platform ◽  
Type Selection ◽  
Lateral Oscillation ◽  
Hoisting System ◽  
Reliable Basis

In a deep mine winding hoist system, the lateral oscillation of the catenary rope is an important evaluation index of orderly rope arrangement and engineering safety. Different boundary excitations will appear when the wire rope winds on symmetrical or asymmetrical grooves, which results in the different dynamic responses of the hoisting system. In this article, the vibration equations of a deep mine hoisting system are established by using the Hamilton principle, and excitation functions of different crossover zone layouts are deduced. The operation curves are introduced to conduct the experiment based on a certain experimental platform. The lateral oscillation of the catenary rope is recorded by high-speed cameras, and an effective image processing method is proposed to obtain the vibration response of a certain point in the catenary rope. The numerical simulations are compared with the experimental results to prove the vibration models derived in this article are valid. The models could provide reliable basis for the grooves type selection in deep mine hoisting.

The Analysis of Security Wedge Lock-Rope Mechanism by ANSYS Finite Element Analysis

2015 ◽  
Vol 713-715 ◽  
pp. 107-113 ◽  
Author(s):  
Kou Bao Fu ◽  
Fan Peng
Keyword(s):  
Finite Element Analysis ◽  
Equivalent Stress ◽  
Wedge Angle ◽  
Mechanical Analysis ◽  
Wire Rope ◽  
Element Analysis ◽  
Efficient Operation ◽  
Relative Slip ◽  
Local Equivalent ◽  
Hoisting System

The performance of lock-rope mechanism affects the safe and efficient operation of mine hoisting system directly. The lock-rope mechanism with wedge angle 5° was designed by the mechanical analysis of wedge lock rope. Its entity model was established and the dynamic process of working is simulated by using the ANSYS/LS-DYNA. The results show that the wedge lock rope mechanism has the ability of self-locking. The strengthening institutions can largely eliminate the relative slip momentum between the lock-rope wedge-block and wire rope, which make the movement trend gentle, reduce the wear between the lock-rope wedge-block and wire rope and improve the security of wedge lock-rope mechanism effectively. The local equivalent stress of lock-rope wedge-block and wire rope are both present in the increasing distribution gradually from the upper to the lower.

Monitor for the Construction for Extra Large Solder Ball Grid Roof

2013 ◽  
Vol 716 ◽  
pp. 537-541
Author(s):  
Hai Zhou Chen ◽  
Yu Ling Wang ◽  
Xiao Yong Zhang ◽  
Gang Kui Xie ◽  
Rong Quan Ma ◽  
...  
Keyword(s):  
Solder Ball ◽  
Wire Rope ◽  
Monitoring Methods ◽  
Monitoring Method ◽  
Key Points ◽  
Steel Truss ◽  
Hoisting System ◽  
Promotion Process

There are six key points, such as steel truss column, hoisting frame, hoisting point, wire rope, wire rope connecting in the hoisting system which we construct the COMAC ministry of installed plant. This timely monitoring of several key points in the promotion process is to enhance the process controlled several indicators. For different key points used different monitoring methods for monitoring. The results showed that 6 monitoring method is reasonable, feasible. This method can provide some experiences to the construction and fabrication of the steel member of the project.

Multi-body dynamics co-simulation of hoisting wire rope

2017 ◽  
Vol 53 (1) ◽  
pp. 36-45 ◽  
Author(s):  
Qing Huang ◽  
Zhi Li ◽  
Hong-qian Xue
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Dynamic Analysis ◽  
Dynamic Model ◽  
Loading Condition ◽  
Element Model ◽  
Wire Rope ◽  
Body Dynamics ◽  
Hoisting System ◽  
Multi Body

As more wire ropes with complex construction are used in the hoisting system of a crane, it becomes more necessary to predict the risks of the hoisting operation. Especially the wire rope, dynamic analysis is required to manage the potential risk in advance. Thus, in this article, a co-simulation method based on multi-body dynamics and finite element method is proposed to determine the dynamic responses of a hoisting system and wire rope. We developed a dynamic model of hoisting system based on ADAMS/Cable to formulate the time history response of dynamic force on wire rope, which could be used as the loading condition in the posterior finite element model. A three-dimensional geometric model for the multi-layered strands wire rope with a construction of 1+7+7 / 7+14 wires is implemented in the finite element analysis software ABAQUS, and both static and dynamic analyses are presented. The static analysis result of force–strain relation is compared with several experiment data, and the finite element model is proved accurate and reliable. In the latter case, the force–time curves obtained by dynamic model are imported to finite element model as loading condition to accomplish dynamic analysis. The co-simulation results of hoisting wire rope’s behavior subjected to dynamic loading during the hoisting process are carried out and discussed. The stress distribution and stress spectrum of wire rope are obtained, and the results show that the most dangerous regions are the lateral side of wire rope, especially the contact area of two wires in strands.

Dynamic Simulative Study of Hoisting System of Mine

2012 ◽  
Vol 215-216 ◽  
pp. 982-985 ◽  
Author(s):  
Zi Gui Li ◽  
Zhi Xia Wang ◽  
Jian He Chen ◽  
Yu Na Zhong
Keyword(s):  
Mathematical Models ◽  
Dynamic Simulation ◽  
Dynamic Characteristics ◽  
Wire Rope ◽  
Mechanical Parameters ◽  
Dynamic Design ◽  
Mass Ratios ◽  
Hoisting System

Taking a single-rope winding hoist for example, the paper studied dynamic characteristics of mine hoisting system with single container in details. It established the dynamic mathematical models of hoisting system. Then the dynamic simulation is done in a variety of motion states in Matlab2008 by using computers. It indicates that some mechanical parameters such as the mass of sheaves and cargo, the mass ratios of them, wire rope stiffness and so on, have obvious influences on the dynamic characteristics of the system. The results provide an important reference for the dynamic design of the system.

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