The modelling of friction in polymer fibre ropes

Leech, C.M.

doi:10.1016/s0020-7403(01)00095-9

Cited by 49 publications

(25 citation statements)

References 4 publications

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“…A major contribution to discrete fiber models has been made by Leech [26,27], for the case of synthetic-fiber cables. This discrete fiber model considers the hierarchical structure of a cable's geometry, and it addresses the effects of frictional forces, transverse deformation of the cable cross-section, heat generation due to fiber hysteresis, and fatigue on the cable behavior [28].…”

Section: Cable Characterization and Modelingmentioning

confidence: 99%

“…Beltran and Williamson [29,30] have presented a discrete rod model to simulate synthetic-fiber cable responses under axial loads. This model relies on previous models by Costello [22] and Leech [27], but focuses on taking into account the degradation of mechanical cable properties as a function of loading history and estimating the effect of broken cable elements on the overall cable response.…”

Section: Cable Characterization and Modelingmentioning

confidence: 99%

See 1 more Smart Citation

Shape memory alloy CuAlBe strands subjected to cyclic axial loads

Beltrán¹,

Cruz²,

Herrera³

et al. 2011

Engineering Structures

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Section: Cable Characterization and Modelingmentioning

confidence: 99%

Section: Cable Characterization and Modelingmentioning

confidence: 99%

Shape memory alloy CuAlBe strands subjected to cyclic axial loads

Beltrán¹,

Cruz²,

Herrera³

et al. 2011

Engineering Structures

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“…For this kind rope-climbing robot, its load capacity equals to the maximum friction between rope and wheel, Euler formula is widely used to calculate the friction between wheel and rope or blet or other forms, but there is some deviation between the actual force and calculated values, especially for the rope-climbing robot. Most studies had applied Euler formula to different areas [1][2][3][4][5] , some studies had modified Euler formulation for their special materials and structures [6,7] , but it's assumed that the friction coefficient between rope and wheel keeps constant in these studies, the assumption is too simplified to correspond to reality. The rope-climbing robot as the research object, the load capacity of the robot and the distribution rules of friction coefficient between rope and wheel will be studied in this paper.…”

Section: Introductionmentioning

confidence: 99%

Load capacity of a new rope-climbing robot

Yin

Zhao

et al. 2017

MATEC Web Conf.

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Abstract. Theoretical analysis and experimental research are carried out on the load capacity of one new kind rope-climbing robot, this robot could lift load along the rope depends on the friction between rope and wheel of the robot. The classic Euler formula is based on the assumption of constant friction coefficient, and this paper establishes a new load capacity model based on nonconstant friction coefficient model, presents a method to measure the distribution of friction coefficient, and builds the experimental platform to conduct experimental research on the friction coefficient and load capacity. Experimental results show that the friction coefficient decreases with the increase of wrap angle; the new model fits the results better than Euler formula.

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“…The efforts were in particular focused on measuring the DMA parameters of higher length specimens with weak tg d. Another important objective was fatigue testing that also finds numerous applications in fiber assemblies and structures 21,22 : performing large number of cycles at a sufficiently high frequency and at affordable cost of investment, maintenance, and operation. Frictionless design has been employed to reduce the wear of key elements.…”

Section: Introductionmentioning

confidence: 99%

New experimental device to test the dynamic behavior of fiber assemblies and fibrous composite structures with a focus on larger industrial‐scale‐like samples

Rebouillat¹,

Liksonov

Courgey³

2011

J of Applied Polymer Sci

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This article focuses on the development of an experimental measurement system intended for dynamic mechanical analysis (DMA) of fiber structures. First, a short review of DMA testing procedures is given, followed by an analysis of particularities of DMA application to fibers and rope assemblies. The necessity of developing a dedicated device for fiber assembly and rope applications is pointed out, as the commercial DMA testing devices available are intended for shorter specimens. Thus, the article insists on the underlying necessity to come up with a measurement device for much longer fiber specimens and a testing procedure therewith. Then the article presents the main concepts of the new device and its operation. Three different operating modes are presented with explanations of their functioning, their particularities, and the interest for rope testing. After that, the implementation of the testing device prototype is presented, describing the mechanical set up, electromagnetic elements, power and acquisition circuitry and software. At last, preliminary experimental results are provided demonstrating the feasibility of this solution and indications concerning the potential future developments of this kind of rope testing systems are given.

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The modelling of friction in polymer fibre ropes

Cited by 49 publications

References 4 publications

Shape memory alloy CuAlBe strands subjected to cyclic axial loads

Shape memory alloy CuAlBe strands subjected to cyclic axial loads

Load capacity of a new rope-climbing robot

New experimental device to test the dynamic behavior of fiber assemblies and fibrous composite structures with a focus on larger industrial‐scale‐like samples

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