Determination of rheological model coefficients of pipeline composite material layers based on spectrum analysis and optimization

Bogdevičius, Marijonas; Karpenko, Mykola; Bogdevičius, Paulius

doi:10.15632/jtam-pl/134802

Cited by 16 publications

(13 citation statements)

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“…Another weakness is that the choice of values of creep compliance, retardation time and the number of Kelvin-Voigt elements applied in simulations, determines the obtained results in a significant way. For the correct description of the viscoelastic response of the pipeline, it is necessary to determine the coefficients of the model of the flexible material used [41]. This is a well-known problem in modelling the viscoelastic response of pipe-wall material in pressurised pipeline systems [42,43].…”

Section: Numerical Solution and Model Validationmentioning

confidence: 99%

Water Hammer Control Using Additional Branched HDPE Pipe

et al. 2021

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In pressurised pipeline systems, various water hammer events commonly occur. This phenomenon can cause extensive damage or even lead to a failure of the pumping system. The aim of this work is to experimentally re-examine the possibility of using an additional polymeric pipe, installed at the downstream end of the main pipeline, to control water hammer. A previous study on this topic investigated additional polymeric pipes connected to the hydraulic system with a short joint section of the same diameter as the main pipeline. In the current research, a different method of including an additional pipe was considered which involved connecting it with a pipe of a smaller diameter than the main pipeline. Three additional HDPE pipes, with different volumes, were investigated. The performance of the devices was studied for hydraulic transients induced by both rapid and slow, manual valve closures. Experimental results show that the additional polymeric pipe can provide significant pressure surge damping during rapid water hammer events. As the valve closing time lengthens, the influence of the additional pipe on the maximum pressure increase is reduced. The additional HDPE pipe does not provide notable protection against hydraulic transients induced by slow valve closure in terms of reducing the first pressure peak. No relationship between the volume of the additional pipe and the damping properties was noticed. The observed pressure oscillations were used to evaluate a one-dimensional numerical model, in which an additional pipe is described as a lumped parameter of the system. The viscoelastic properties of the device were included using the one element Kelvin–Voigt model. Transient flow equations were solved with the implicit method of characteristics. Calculation results demonstrate that this approach allows one to reasonably reproduce unsteady flow oscillations registered during experiments in terms of the maximum pressure increase and pressure wave oscillation period.

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Section: Numerical Solution and Model Validationmentioning

confidence: 99%

Water Hammer Control Using Additional Branched HDPE Pipe

et al. 2021

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“…Experimental tests are done using a double-sample measurement and are based on a single--sample statistical method for the estimation of uncertainty in the repeated measurements of data processing (Bogdevičius et al, 2021). The test bench and measurement setups for research cover a metal base with a rubber layer that provides protection from an impact of low frequency on the environment, research objects, a laser scanning system for measuring vibration of the object surface under an Integrated Electronics Piezo-Electric (IEPE) impulse hammer with an impact sensor and FFT analysis (Fig.…”

Section: Methodology For the Experiments And Data Processingmentioning

confidence: 99%

“…Composite materials have been used in a wide range of applications in the field of transport engineering and cover components of land vehicles, aerospace and marine vehicles (Bogdevičius et al, 2021). Composite materials have recently been used in hydraulic components and as energy absorbing elements of mechanical vibrations (Lubecki et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Vibration damping characteristics of the cork-based composite material in line to frequency analysis

Karpenko¹,

Nugaras²

2022

Journal of Theoretical and Applied Mechanics

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The conducted research suggests possibility of replacing extruded polystyrene with a renewable cork-based material in laminated composite structures. Different fractions of the cork-based material of a composite laminate have been applied. The composites have been tested employing a hammer-focused vibration method. Conforming to obtained results, the cork-based material of smaller fraction has damping properties similar to those of the extruded polystyrene composite. Integrating cork into the structure of the composite has the opportunity to develop a more eco-friendlier and sustainable product and to improve the adaptive properties of passive control systems used for vibration damping applications operating in the middle and high frequency zones.

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“…Generally, an aircraft landing gear (Figure 2b) hydraulic system consists of a fluid tank, pressure pump, antisurge booster, distribution valves, filters, accumulator's and actuators (cylinders) what connected to one system by a pipelines (Green, 1985). Depends from the aircrafts types their hydraulic drive components can be connected by metal pipes (Marais & Robichaud, 2012) or by flexible high-pressure hoses (Bogdevičius et al, 2021). The schematic of aircraft landing gear hydraulic system is shown in Figure 2c, indicating main accessories interconnected by flexible pipelines.…”

Section: An Aircraft Pipelines Failure and Maintenance Problemsmentioning

confidence: 99%

Landing Gear Failures Connected With High-Pressure Hoses and Analysis of Trends in Aircraft Technical Problems

Karpenko

2022

Aviation

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Reliability and maintenance analysis in aviation industry focused on a main objective of the accident and incident investigations what are help to better understand the causes of accidents. In the article suggested the underlying concept by scorecard of situations what lead to aviation accidents. In the present research, the aviation accident connected with a landing gear and a problem of failure to follow maintenance instructions during a maintenance on aircraft landing gear hydraulic drive was under an investigation, on an example of root cause analysis of the failure of hydraulic flexible highpressure hoses. The approach presented in this research of experimental measurements, based on fluid pressure measuring, high-pressure hoses vibration measuring and frequency’s analysis. By spectrum analyses was found that high-pressure hoses are most susceptible to deformation at frequencies to the response of the fluid within, as well as at hoses material resonance frequencies. The compact version of hoses is more deformational on the resonance points than a standard version of hose. In final according to analyses, was established that disrespect of the frequency conditions was leaded to causes irreversible degradation changes of the hose inner structure and occurrence of material defects inside layers contact what lead in final step to hose failure.

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Determination of rheological model coefficients of pipeline composite material layers based on spectrum analysis and optimization

Cited by 16 publications

References 0 publications

Water Hammer Control Using Additional Branched HDPE Pipe

Water Hammer Control Using Additional Branched HDPE Pipe

Vibration damping characteristics of the cork-based composite material in line to frequency analysis

Landing Gear Failures Connected With High-Pressure Hoses and Analysis of Trends in Aircraft Technical Problems

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