Numerical analysis on the sloshing of free oil liquid surface under the variable conditions of vehicle

He, Ren; Zhang, Enhui; Fan, Bo

doi:10.1177/1687814019829967

Cited by 11 publications

(12 citation statements)

References 15 publications

(13 reference statements)

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Section: Introductionmentioning

confidence: 99%

“…Oil liquid sloshing often causes sloshing noise, interruption of fuel supply under the high-speed variation of automobile acceleration, structural damage of fuel tank and its internal parts, increase of evaporation emission, and so on. [7][8][9] Liquid sloshing is generally studied by theory, simulation, and experiment. The theoretical research focuses on the equivalent model of small amplitude liquid sloshing and nonlinear characteristics of liquid sloshing.…”

Section: Introductionmentioning

confidence: 99%

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Influencing analysis of different baffle factors on oil liquid sloshing in automobile fuel tank

Zhang

Zhu

Wang

2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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Oil liquid sloshing is a common phenomenon in automobile fuel tank under variable working conditions. Installing baffles in automobile fuel tank is the most effective way to suppress adverse influence caused by oil liquid sloshing. Different types of three-dimensional finite element models filling oil liquid are created, meshed, and simulated. The reliability of simulation results is verified by test. The concept of time–area value is proposed in this work. In order to explore the influence of different baffle factors on oil liquid sloshing, six factors are studied. Six kinds of influencing factors are height, structure, shape, spacing, number, and placement of baffles. The sloshing pressure and time–area value are the core parameters for evaluating the influence degree. Some results could be obtained by comparing the parameters of oil liquid sloshing under the same condition. High baffles and baffles with small spacing have obvious attenuation influence on the pressure of oil liquid sloshing. Low baffles, double baffles, parallel baffles, and the combined action of inertia force and gravity are more beneficial to the reduction of time–area value. Time–area value is the largest and the smallest in fuel tank with intersection baffles and low baffles, respectively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influencing analysis of different baffle factors on oil liquid sloshing in automobile fuel tank

Zhang

Zhu

Wang

2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…4 Additionally, there have been several approaches based on numerical analysis, modeling, and simulation of parametric liquid sloshing in the container. [5][6][7] Due to the fact that the feed-forward control model are extremely sensitive to the external errors which occurred in the container system, thus the feed-back control has been applied to eliminate the slosh of the liquid in the container system. The feed-back control methods are used by creating a specified motion with the using of a feedback sensors, which will reduce the residual amount of the slosh of the liquid in the container system.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, there have been several approaches based on numerical analysis, modeling, and simulation of parametric liquid sloshing in the container. 5–7…”

Section: Introductionmentioning

confidence: 99%

Modeling and adaptive robust wavelet control for a liquid container system under slosh and uncertainty

Аl-Мashhadani

2020

Measurement and Control

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Liquid sloshing in moving or stationary containers and flexible uncertainty caused by the slosh are considered to be the most probable causing unexpected coupling effects on the dynamics of many systems such as aerospace, ground vehicles, and high speed industries arms. The coupling of dynamic liquid slosh in a container system with the uncertainty caused by the sensors or dampers is rare documented and this coupling can be considered as a highly nonlinear system. In this paper, an investigation is presented to demonstrate a new approach for enabling the reduction of the liquid slosh and uncertainty by implementing adaptive robust wavelet control technique. Starting by creating the mathematical dynamic model for the nonlinear slosh coupled by uncertainty, adaptive robust control based wavelet transform is applied for calculating optimal motion that minimize residual slosh and uncertainty. Subsequently the adaptive robust control based wavelet network approximation and the appropriate parameter algorithms for the container system with slosh and uncertainty are derived to achieve the feedback linearization, adaptive control, and H∞ tracking performance. The simulation results show that the effects of slosh errors and external uncertainty can be successfully attenuated within a desired attenuation level.

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“…Such a general approach leads to a system of partial differential equations [7][8][9]. This system of equations is not solvable analytically, wherefore numerical solution techniques such as the finite difference method or the finite volume method have to be applied [10][11][12][13]. Models with distributed parameters can be used for motion optimization as shown in [14,15].…”

Section: Introductionmentioning

confidence: 99%

Modeling Transient Liquid Slosh Behavior at Variable Operating Speeds Induced by Intermittent Motions in Packaging Machines

Troll

Majschak

2020

Applied Sciences

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The present paper deals with the problem of modeling liquid slosh occurring in the packaging process of containers filled with liquid. Sloshing effects are induced by one-dimensional intermittent motions and are undesired due to the necessity of quality control processes, such as weighing. Therefore, motion optimizations are often applied with the intention to minimize the residual vibrations. Valid process models are required to do so. The aim of this paper is to derive models for describing the liquid slosh behavior for different motions and for common practical circumstances, e.g., different container geometries as well as machine operating speeds, and to state the model's limits of use. Known model approaches are discussed, and their assumptions are reviewed experimentally. This leads to a set of limited ranges of operating speeds in which the applied models' assumptions are valid. The models are derived for these sets from experimental data, and a comparison is executed that enables the determination of the models' validity concerning their operating speed dependency. Finally, the validity of the derived models is investigated by comparing their predictive efficiency of describing the vibration for different motion profiles.

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Numerical analysis on the sloshing of free oil liquid surface under the variable conditions of vehicle

Cited by 11 publications

References 15 publications

Influencing analysis of different baffle factors on oil liquid sloshing in automobile fuel tank

Influencing analysis of different baffle factors on oil liquid sloshing in automobile fuel tank

Modeling and adaptive robust wavelet control for a liquid container system under slosh and uncertainty

Modeling Transient Liquid Slosh Behavior at Variable Operating Speeds Induced by Intermittent Motions in Packaging Machines

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