The global mechanical response and local contact in multilevel helical structures under axial tension

Han, Yuchen; Yong, Huadong; Zhou, Youhe

doi:10.1016/j.ijmecsci.2022.107886

Cited by 8 publications

(3 citation statements)

References 68 publications

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“…As a piece of context, our motivation stems from modelling guided wave propagation in wire strands and wire ropes, where contacts are known to play an important role on wave phenomena [8,9], and where current models [10] would certainly benefit from closed form formulae to account for contacts. Let us also cite [11] that develops a semianalytical strategy to model Hertzian stick-slip contacts between cylindrical particles in a discrete element method approach, and [12] that simplifies the modelling of line contacts in wire strands by using the well-known compliance of the symmetrically loaded cylinder.…”

Section: Introductionmentioning

confidence: 99%

Elastic response of a cylinder loaded by a Hertzian contact pressure and maintained in equilibrium by its inertia

Mora,

Treyssède,

Laguerre

2024

Proc. R. Soc. A.

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We derive the compliance of an elastic cylinder submitted to a line Hertzian contact. The cylinder is maintained in static equilibrium by bulk forces that are proportional to rigid body motions. Displacements are measured by setting integral gauges that amount to prescribing zero net linear and angular momentum, if the problem were to depend upon time. Various cases are covered, representing either infinitesimal or finite contact displacements, including partial slip. The developments are illustrated by revisiting a classical example in what could be called The heavy cylinder on a vibrating soil . The four contact resonances and forced response of the system are given in closed form in the quasi-static approximation, and compared against a reference numerical solution. The formulae can also be used as building blocks to assemble the compliance matrix of a system comprising several cylinders.

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Section: Introductionmentioning

confidence: 99%

Elastic response of a cylinder loaded by a Hertzian contact pressure and maintained in equilibrium by its inertia

Mora,

Treyssède,

Laguerre

2024

Proc. R. Soc. A.

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“…Han Y.C. et al [11] proposed a theoretical model which can calculate the global and local mechanical properties of the multilevel helical structure. Zhang Y.C.…”

Section: Introductionmentioning

confidence: 99%

Holding Force Characteristics of Preformed Helical Fitting Based on Finite Element Method

Yaguang²,

Liu

et al. 2023

IEEE Access

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As an important part of transmission lines, preformed helical fitting plays an indispensable role in the safe and stable operation of electronic circuits. However, due to the poor service environment of transmission lines, preformed helical fitting can often slip, scatter, and detwist. This paper explores variations in the holding force of the preformed helical fitting under different geometric parameters. First, the geometric structure of preformed helical fitting is analyzed, and the secondary development is conducted using the ABAQUS finite element software. The script program is written in Python language to realize the parametric modeling. Based on the experimental results, the changing trend of the holding force is consistent, which confirms the correctness of the finite element model. In addition, the preformed helical fitting is studied under different values of molding aperture, pitch length, pitch number, and armor rod diameter, and changes in the holding force under different parameters are analyzed. The results show that the holding force of the preformed helical fitting increases with the decrease in the molding aperture and pitch length, and the molding aperture has a negative linear correlation with the overall holding force. The holding force increases linearly with the pitch number; so, reducing the pitch length can increase the holding force of preformed helical fitting. Moreover, the results indicate that the holding force increases with the armor rod diameter. The research results presented in this study have important guiding value for the design of performed helical fitting.

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“…A wire rope is a kind of component with a special spatial helix structure. It has good resistance to wear, fatigue, and shock, and is widely used in civil engineering, shipbuilding, aerospace engineering, and other industrial fields [1,2]. The core of a 6 × K31WS + FC wire rope is made of fiber, which has good performance in oil storage.…”

Section: Introductionmentioning

confidence: 99%

A Finite Element Model for a 6 × K31WS + FC Wire Rope and a Study on Its Mechanical Responses with or without Wire Breakage

Gai

Deng

et al. 2023

Applied Sciences

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The special spatial structure and the long-term harsh working environment make the transient response of wire rope complicated, so accurate assessment and prediction of its mechanical characteristics are of great significance to ensure the safe and stable operation of related equipment. In this paper, a method is proposed for the analysis of the mechanical characteristics of a 6 × K31WS + FC wire rope with or without wire breakage. Firstly, an accurate parametric geometric model of the wire rope is established based on the Frenet frame method, the material properties of the wire rope are acquired by experiments, and the finite element model of the wire rope is built. Then, a mechanical model of the wire rope is proposed to verify the validity of the finite element model. Finally, the influences of the number, distribution, and location of the broken wires on the mechanical characteristics of the wire rope are thoroughly analyzed. This work proposes a comprehensive framework that can quantitatively analyze the mechanical characteristics of the complex wire rope with or without wire breakage, which provides a practical method for its reliability and maintenance evaluation and has guiding significance for the shape design and structural optimization of the wire rope.

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The global mechanical response and local contact in multilevel helical structures under axial tension

Cited by 8 publications

References 68 publications

Elastic response of a cylinder loaded by a Hertzian contact pressure and maintained in equilibrium by its inertia

Elastic response of a cylinder loaded by a Hertzian contact pressure and maintained in equilibrium by its inertia

Holding Force Characteristics of Preformed Helical Fitting Based on Finite Element Method

A Finite Element Model for a 6 × K31WS + FC Wire Rope and a Study on Its Mechanical Responses with or without Wire Breakage

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