Research on the Tensile Mechanical Properties of a Braided Corrugated Hose and Its Axial Stiffness Model

Huang, Dacheng; Zhang, Jianrun

doi:10.3390/jmse9091029

Cited by 6 publications

(5 citation statements)

References 17 publications

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“…Therefore, the importance of the right hose mounting is paramount. The angle of the hydraulic hose braid has a major influence on the hydraulic hose deformation and the forces acting on the hose ends [15][16][17][18]. When the hose is loaded by fluid pressure, the hose steel braid tends to deform so that the opposing strands of the braid are at a neutral braid angle to each other at which the axial and hoop stress components are in balance.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

The Effect of Braid Angle on Hydraulic Hose Geometry

Dýrr,

Bureček,

Hružík

et al. 2024

Processes

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Hydraulic hoses are part of most hydraulic systems, from industrial hydraulics with open loop hydraulic systems to mobile hydraulics with closed loop hydraulic systems. The design parameters of hydraulic hoses may influence the duty cycle dynamics of these systems. One of the factors that influence the behavior of a hydraulic hose under pressure loading is the steel braid angle with respect to the hydraulic hose axis. This work aims to determine the effect of the hydraulic hose braid angle on the change in its geometry. The next objective is to determine the forces that occur at the hose ends under pressure loading. The stresses occur when fluid pressure is applied to the inner wall of the hydraulic hose. Consequently, these stresses are transferred to the hose ends through the steel braid or spiral. The phenomenon of the neutral braid angle provides a balance between the stresses generated inside the hydraulic hose. Therefore, hydraulic hose manufacturers try to produce hydraulic hoses with a neutral braid angle, because the lifetime of the hydraulic hose is also related to this. As part of this research work, an experimental device was constructed in order to measuring the properties of hydraulic hoses. When the hose was loaded with fluid pressure, the change in hose geometry was measured and the angle of the hose braid was measured simultaneously. Upon the measurements, the effect of the braid angle on the hose behavior under pressure loading was determined.

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Section: Theoretical Backgroundmentioning

confidence: 99%

The Effect of Braid Angle on Hydraulic Hose Geometry

Dýrr,

Bureček,

Hružík

et al. 2024

Processes

View full text Add to dashboard Cite

show abstract

“…Failure to maintain the neutral braid angle during manufacturing results in a change in the geometry of the hydraulic hose under the influence of the working pressure. The hose is more stressed, which can lead to a shortened service life [1]. Table 1 summarizes the geometry change when the braid angle of the hydraulic hose is changed.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…The angle at which the braid is wound is also important for the design of the hydraulic hose. This angle has a significant effect on the change in geometric dimensions of the hose when the inner wall is loaded with fluid pressure [1,9,10]. The lifetime of the hose also depends on this angle [3].…”

Section: Introductionmentioning

confidence: 99%

Braid Angle and its Influence on the Hydraulic Hoses Behaviour Under Pressure Loading

et al. 2022

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This paper deals with the experimental analysis of the effect of the braid angle on the behaviour of a hydraulic hose under pressure loading. The main structural elements of the hose are a rubber tube and a steel braid or spiral. The material of the braid and the number of braids influence the magnitude of the pressure load on the hydraulic hose. The angle of the braid affects the deformation of the hydraulic hose when the inner wall is loaded with fluid pressure. For hydraulic hoses, it is a requirement to maintain a neutral braid angle during manufacture to ensure a balance between axial and circumferential stresses under pressure loading. An experimental device was set up to measure the hoses. This device can be used to measure the diameter of the outer braid, the length and the tensile force of the hose in the axial direction and, where appropriate, to evaluate the angle of the outer braid of the hose as a function of the fluid pressure loading on the inner wall of the hose. The object of the research is to determine the effect of the braid angle on the behaviour of the hydraulic hose under pressure loading. Based on the measurements, the dependencies of the tensile force, the braid angle and the change in length of hydraulic hoses on the internal pressure were determined. In order to compare the measurement results, hydraulic hoses with different inner diameters and different numbers of braids or spirals were selected. Research background: Description of neutral braid angle, hydraulic hose geometry, tensile force of hose. Purpose of the article: Influence of braid angle on the hydraulic hoses behaviour under pressure loading. Methods: Experimental measurements. Findings & Value added: Determining of the change of length dependencies on the pressure, determining of the tensile force dependencies on the pressure.

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“…These hoses are mainly divided into two major types, including metal corrugated hoses and cryogenic composite hoses based on thermoplastic materials and metal reinforcement wires [1,2]. Metal corrugated hoses possess the advantages of mature technology, low costs, and high safety, so it is widely used [3,4]. However, they have drawbacks such as heavy weight, large bending radius, low flexibility, and difficulty in aligning during pipe connections [5,6].…”

Section: Introductionmentioning

confidence: 99%

Development and Recent Progress of Hoses for Cryogenic Liquid Transportation

Chen,

Sun,

Yan

et al. 2024

Polymers

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Recently, the application of cryogenic hoses in the field of cryogenic media has become a hot topic, especially in the industry of offshore liquefied natural gas and aerospace field. However, the structure of cryogenic hoses is complex, and reasonable structural properties are required due to the harsh working conditions. There is still plenty of scope for further development to improve the performance in all aspects. In this paper, the current development status of cryogenic hoses for liquefied natural gas (LNG) transportation is reviewed first, including the types, manufacturers, structural forms, performance, and key technical challenges. And then, the recent progress and prospect of cryogenic hoses for cryogenic liquid transportation (such as LNG and liquid oxygen) are summarized, including structure design, low-temperature resistant polymers, liquid oxygen compatible polymers, and leakage monitoring technologies. This paper provides a comprehensive overview of the research development and application of cryogenic hoses. Moreover, future research directions have been proposed to facilitate its practical applications in aerospace.

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Research on the Tensile Mechanical Properties of a Braided Corrugated Hose and Its Axial Stiffness Model

Cited by 6 publications

References 17 publications

The Effect of Braid Angle on Hydraulic Hose Geometry

The Effect of Braid Angle on Hydraulic Hose Geometry

Braid Angle and its Influence on the Hydraulic Hoses Behaviour Under Pressure Loading

Development and Recent Progress of Hoses for Cryogenic Liquid Transportation

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