scholarly journals A Fundamental Study on Breakage in the Wire-Rope (1st Report)

1959 ◽  
Vol 75 (849) ◽  
pp. 156-160
Author(s):  
Yo SERITA
Keyword(s):  
Wire Rope ◽  
Fundamental Study ◽  
The Wire

Arrangement Characteristics and Wear Distribution of Wire Rope in Parallel Grooved Multi-Layer Winding

2013 ◽  
Vol 423-426 ◽  
pp. 842-845 ◽  
Author(s):  
Zhi Hui Hu ◽  
Yong Hu ◽  
Ji Quan Hu
Keyword(s):  
Experimental Study ◽  
Wire Rope ◽  
Wire Ropes ◽  
The Wire ◽  
Wear Damage

Based on the analysis of multi-layer winding arrangement characteristic of the wire rope in Lebus drum, the experimental study is carried on wear distribution of the wire rope in parallel grooved multi-layer winding. The result shows that, the wire rope is arranged regularly in each drum area in parallel grooved multi-layer winding; the wear of wire ropes in crossover zone is more serious than that of the parallel zone; in the same-layer wire rope winding in crossover zone, the wear damage during the wire rope winding in crossover zone at the end of each-layer drum is the most serious.

scholarly journals Effect of Structure Parameters on Polycal Wire Rope Isolator Stiffness-Damping Characteristics

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Shaowu Tu ◽  
Xiaofeng Lu ◽  
Xiaolei Zhu
Keyword(s):  
Prediction Models ◽  
Structural Parameters ◽  
Wire Rope ◽  
Diameter Ratio ◽  
Element Analysis ◽  
Damping Characteristics ◽  
Bending Radius ◽  
Pitch Length ◽  
The Wire ◽  
Wire Strand

Wire rope isolators are mainly used to isolate vibration and protect precise equipment. However, the issue of regulation of vibration isolators taking into account the nonlinearity of their characteristics was poorly understood in the modern literature. In this paper, the influence of structural parameters (diameter ratio and lay pitch of the single strand, and lay pitch and bending radius of the wire rope) on stiffness-damping characteristics of the Polycal WRI was investigated by the simplified finite element analysis method. The stiffness and damping prediction models including structural parameters and material properties were established. The results showed that the stiffness-damping characteristics were the best; when the diameter ratio of wire strand was 1.1, the inside layer wire pitch length was 6 times the diameter of the wire strand, the outside layer wire pitch length was 11 times the diameter of the wire strand, the pitch length of the wire rope was 7.5 times its diameter, and the bending radius was equal to 46.5 mm. The errors of the prediction for prestiffness and softened stiffness were within 5%, and the errors of prediction for the energy dissipation coefficient were within 10%.

Wire Cable Failures in Climbing Anchor Chocks

2007 ◽  
Vol 348-349 ◽  
pp. 165-168
Author(s):  
Jeffrey Vogwell ◽  
Jose Maria Minguez
Keyword(s):  
Failure Modes ◽  
Impact Force ◽  
Steel Wire ◽  
Research Programme ◽  
Wire Rope ◽  
Rock Climbing ◽  
Light Weight ◽  
Secure Attachment ◽  
Rock Face ◽  
The Wire

Anchor chocks are used in the sport of rock climbing for providing secure attachment to a rock face. They are used at regular intervals and must be light weight (since many are carried) and also sufficiently strong to withstand an impact force should a climber fall from a height. In chock design, steel wire cable is widely used for connecting the nut component, which is wedged into a rock crevice, to the free end which attaches, via a karabiner link, to the safety rope. However, the wire cable is vulnerable to failure as it can fray with use at exposed ends - especially when folded into a loop using tight bends. Also, the ferrule end connections are considered a potential design weakness. In a research programme tests have been carried out on new and also some well used anchor chocks and has revealed very different, and some unpredicted, failure modes – depending on the state of the wire rope and whether the applied load at failure was static or impact. This paper presents the results of test failures for a range of chocks and discusses the benefits of using single lengths of wire cable with suitably swaged end ferrules.

Analysis and Experiment on the Chuck for Equivalent Strength Connection of Wire Rope

2013 ◽  
Vol 772 ◽  
pp. 188-192
Author(s):  
Hai Zhou Chen ◽  
Xiao Yong Zhang ◽  
Wei Li ◽  
Yu Ling Wang ◽  
Qi Lin Zhang
Keyword(s):  
Wire Rope ◽  
The Wire ◽  
Equivalent Strength

Analyze the safety of the wire rope fixtures through experiment while constructing the COMAC ministry of installed plant. Pointed out the proper use of the provisions of the steel erection specification, and the number of provisions chuck is unsafe. The timely replacement of the shackle wire rope connection ensured the security of the lift process through experiments. This method can provide some experiences to the construction and fabrication of the steel member of the project.

Diamond-Bead Wire Classification and Spectrum with POS Part I: Classification with Process and Object

2014 ◽  
Vol 620 ◽  
pp. 269-274
Author(s):  
Li Zhi Gu ◽  
Sheng Jun Wei
Keyword(s):  
Essential Elements ◽  
Wire Rope ◽  
Other Substances ◽  
Grinding Tool ◽  
Spectrum Characteristics ◽  
Manufacturing Methods ◽  
The Wire ◽  
Systematic Understanding ◽  
Shape Characteristics ◽  
Insight Into

As a new kind of cutting and grinding tool, diamond-bead wire has gained multi-patterns and many applications. It is commonly comprised of six elements pertaining to corresponding roles for the capacity of the wire: wire rope, diamond bead, clip, spacer, joint, spring or plastic/rubber. For further systematic understanding of diamond-bead wires, researching and developing new bead wires,and making full use of bead wires, it is desperately needed to properly classify diamond-bead wires available and those that may exist in theory. The current study collected and analyzed systematically a hundred of patterns of diamond-bead wires from the diamond-bead wire manufacturers throughout the globe went insight into the essential elements of the wire, including the overall layout, shape characteristics, technological processes, cutting and grinding object, and studied in classification for the spectrum characteristics. And the structural feature covers skeleton package, spacing washer, and special structure; manufacturing process contains bead manufacturing methods and the wire producing processes; and sawing object includes the soft stone, hard stone, and other substances. A trial spectrum has been drawn on the POS classification. All the subjects were discussed and presented in two parts, and here is the first part for classification with processes and objects.

scholarly journals Geometry and Modeling of the Oval Strand of n0+(2n0+4)+n2 Type

2012 ◽  
Vol 7 (2) ◽  
pp. 33-40 ◽  
Author(s):  
Eva Stanová
Keyword(s):  
Initial Data ◽  
Geometric Modeling ◽  
Geometrical Model ◽  
Wire Rope ◽  
Mathematical Representation ◽  
Structural Elements ◽  
The Core ◽  
Different Shapes ◽  
The Wire ◽  
Wire Strand

Abstract A wire rope is a structure composed of many individual wires. The wires form two major structural elements: the strand core and the layers of the strand. There may be different shapes of strands in the rope depending on the shape of strand core. The paper deals with the mathematical geometric modeling of the oval wire strand created of n0 + (2n0 + 4) + n2 wires. The number and diameter of the core wires are the initial data. The mathematical representation is in form of parametric equations of the wire axes. The equations are implemented in the Pro/Engineer Wildfire V5 software for creating the geometrical model of the strand.

De-Noising of Damage Signal in Wire Rope Based on Adaptive Lifting Wavelet

2010 ◽  
Vol 139-141 ◽  
pp. 2556-2560
Author(s):  
Wei Xia Zhan ◽  
Ji Wen Tan ◽  
Yan Wen
Keyword(s):  
Wavelet Transform ◽  
Noise Suppression ◽  
Lifting Scheme ◽  
Wire Rope ◽  
Lifting Wavelet Transform ◽  
Noise Elimination ◽  
Design Flexibility ◽  
Lifting Wavelet ◽  
The Wire ◽  
Better Than

At the basis of the adaptive lifting wavelet transform, a method was proposed for solving the problem of noise suppression of the wire rope damage signals. A wavelet with damage property was constructed via lifting scheme, that is,the adaptive update-filter and the adaptive predict-filter were designed using the statistics information of the wire rope damage signals. And the compromise algorithm between software-threshold and hard-threshold was used in the threshold processing. The traditional wavelet and the above proposed transform are applied in de-noising of the practical acquisition of wire rope damage signal. The contrast experiments show that the noise elimination with the improved lifting scheme is better than that achieved by traditional wavelet transform. Moreover, this presented scheme retains the effective information in the break signals and greatly improves the design flexibility and the process speed.

scholarly journals Design and analysis of elevator wire ropes

2021 ◽  
Vol 12 ◽  
pp. 20
Author(s):  
Anil Babu Seelam ◽  
Mohammad Saif Jawed ◽  
Sachidananda Hassan Krishanmurthy
Keyword(s):  
Best Practices ◽  
Research Paper ◽  
Wire Rope ◽  
New Materials ◽  
Wire Ropes ◽  
Mechanical Handling ◽  
The Wire ◽  
Design Calculations

In this research paper design and analysis of wire ropes used in elevator have been presented. The main objective of this study is to find the best practices on handling wire ropes for safety and to reduce the downtime of elevators due to wire rope failures. Design calculations have been done to calculate the apt dimensions and design is constructed on Auto Desk inventor software and the analysis have been performed using Ansys. Two configurations of the wire ropes have been studied and from this result it can be concluded that the design of wire rope is possible to relieve mechanical handling and to improve the design of wire ropes making it more durable by possible inclusion of new materials which in turn increases the efficiency and life of wire ropes without compromising safety.

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