Experimental Test for Measuring the Normal and Tangential Line Contact Pressure Between Wire Rope and Sheaves

Usabiaga, Hodei; Ezkurra, Mikel; Madoz, M. A.; Pagalday, J. M.

doi:10.1111/j.1747-1567.2007.00294.x

Cited by 9 publications

(4 citation statements)

References 2 publications

(4 reference statements)

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“…However, formulations involving the full non-linear transition from an initial no-sliding state to a full-sliding one could be essential for a better description of the frictional physics (see e.g. [13]) which are beyond the scope ouf our analysis. As fatigue analysis are beyond the scope of our analysis, a last simplifying assumptions is taken which is a full-sliding configuration which allows to get insight about theoretical worst possible evolution of the tension, then of the amplitude oscillations.…”

Section: System Of Interest and The Friction Considerationmentioning

confidence: 99%

“…[10] provided analytical and numerical approaches with possible applications to the swing of a swing close to resonance. Other investigationsabout similar system includinganother rheology for the cable have been carried out by Babaz et al [11] which is adapted in our paper to make further developments about the overall behavior of the system including new consideration about the influence of the radius of the support and induced friction on the behavior of the system, believed to be of practical interest for cable transportation systems.The sophisticated behavior of the sliding process of the cable along a contact surface has been investigated by Betchel et al in [12] for a torquetransmission system and by Usabiaga et al in [13] when the sliding of the cable occurs only on a limited portion of the contact interface. Recently, interaction between a static pulley and cable rope model has been investigated through a nodal formulation procedure by Westin and Irani in [14].…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear oscillations of a pendulum cable with the effects of the friction and the radius of the support

2019

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The dynamics of a pendular cable with a special constitutive law subjected to a time-dependent velocity is investigated. The Coulomb friction between the cable of pendulum and its support taking into account the effects of the support are considered. To predict system behaviors, the multiple scale method is endowed leading to spot the evolution of the angle and the length of the pendulum. The study permits to enlighten the effects of velocity, friction and the radius of the wheel support on the overall system response and its stability.

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Section: System Of Interest and The Friction Considerationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nonlinear oscillations of a pendulum cable with the effects of the friction and the radius of the support

2019

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“…LLF at 180 0 is about 2.15 times the value obtained for LLF at 90°. According to [6], in sheave applications with sliding behaviour, forces at both extremities can be calculated as (Fig. 12):…”

Section: C) Cable Flexion Anglementioning

confidence: 99%

Analysis of Bowden cable Transmission performance for orthosis applications

Goiriena

Retolaza

Cenitagoya

et al. 2009

2009 IEEE International Conference on Mechatronics

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A Bowden cable performance analysis, based on a Design of Experiments (DoE) is presented for orthosis applications. The need for analysing these cables is based on the construction of IKO (IKerlan's Orthosis) with five actuated degrees of freedom (DoF) to help the human arm. The aim is for an individual to be capable of lifting weight without any great effort using this exoskeleton, which should be portable and readily dressed (and, therefore, lightweight). In order to transmit the power from the actuators to the joints, Bowden cables are used due to their flexibility and light weight. Transmission performance has been analysed in terms of load loss and cable deformation in order to estimate actuator requirements and positioning accuracy. A test bench has been built to measure the cable deformation and load loss occurring between the two ends of the cable in different situations. This has been applied to cables with two different diameters and at different loads. The variables for which the effect has been analysed are weight, the angle formed by the cable at the point where it leaves the sheath, the cable flexion angle, cable length, cable flexion curvature radius and cable type.

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“…Jiang and Henshall (1999) proposed a concise finite element model for the simple spiral strand and found the influence of termination effect for the strand on the interwire contact force and contact pressure mainly occurring at the contact lines. Usabiaga et al . (2008) studied the contact pressure between wire rope and sheaves and discovered that contact pressure distributes non-uniformly and the maximum value occurs at the middle arc of the sheave.…”

Section: Introductionmentioning

confidence: 99%

Influence of wire’s surface topography on interwire contact performance of simple spiral strand

Meng

Gong

2018

ILT

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Purpose The purpose of this study is to research the influence of wire’s surface topography on interwire contact performance of simple spiral strand. Design/methodology/approach The mechanical model of the simple spiral strand imposed by a tensile load is first established, into which the surface topography, Poisson’s ratio effect and radial deformation are incorporated simultaneously. Meanwhile, the Gaussian and non-Gaussian rough surfaces of the steel wires are obtained with the fast Fourier transform (FFT) and digital filter technology. Then, the rough interwire contact performance of the simple spiral strand is calculated by using conjugate gradient method and FFT. Findings As compared with smooth wire surface, both the longitudinal orientation for the Gaussian wire surface and large kurtosis or small skewness for the non-Gaussian surface yield a small contact pressure and stress. Originality/value This study conducts detailed discussion of the influence of wire’s surface topography on the interwire contact performance for the simple spiral strand and gives a beneficial reference for the design and application of a wire rope.

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Experimental Test for Measuring the Normal and Tangential Line Contact Pressure Between Wire Rope and Sheaves

Cited by 9 publications

References 2 publications

Nonlinear oscillations of a pendulum cable with the effects of the friction and the radius of the support

Nonlinear oscillations of a pendulum cable with the effects of the friction and the radius of the support

Analysis of Bowden cable Transmission performance for orthosis applications

Influence of wire’s surface topography on interwire contact performance of simple spiral strand

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