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Abstract. This study is motivated by the condition monitoring and fault diagnostics of structural beams used in large-scale vibrating screens for the mining industry. For the purpose of developing a reliable model-based approach, a new stiffness matrix of a three-dimensional finite element is proposed for modelling a beam with a …
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Failure and sensitivity analysis of a reconfigurable vibrating screen using finite element analysis | Semantic Scholar. DOI: 10.1016/J.CSEFA.2017.04.001. Corpus …
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1. The finite element model of the screen is established. The natural frequency of the screen in the free vibration state is 1071 Hz. Through the analysis of …
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Discrete element method (DEM) was employed to model the particle-particle and particle-screen interactions. Spherical and non-spherical particles were also modelled to gain a more accurate simulation of screening. A virtual screening model and a three-dimensional geometry of a vibrating screen were set up to perform a simulation of …
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Dynamic models of vibrating screens can simulate motion of the vibrating screen structure and show good agreement with experimental measurements [27] and finite element method (FEM) results [22]. ...
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At the design stage, by using the discrete and finite element approach [12] [13] [14][15][16][17][18][19], the natural modes of the screen are examined to confirm minimal structural stresses and ...
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Lin et al. (2022) analyzed the dynamic characteristics of the vibrating screen using finite element and proposed a nonlinear coupled dynamic model. The scholar not only proved the accuracy of the model through experiments, but also studied the influence of structural parameters and damping parameters on the dynamics of the vibrating …
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In order to study the stress distribution of dual-frequency vibrating screen and ensure the screen box has sufficient strength and longevity, a finite element model of dual-frequency vibrating screen was built, and the stress, modes and fatigue life of the screen box were analyzed. The results indicate that, the stress concentration appears at the contacting …
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necessary stiffness for screens to vibrate in a controlled manner. Naturally, these springs are subjected to varying loading cycles, which can cause their premature fatigue failure. …
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Finite element analysis of reconfigurable vibrating screen Finite element analysis is very essential in analyzing the structure of the screen, in order to determine failures caused due to uncertainty of loads applied. Like any other vibrating screens, the RVS is composed of many different components with different functions, however due to the ...
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Abstract. Aiming at the design defects of the existing structure of the linear vibrating screen, the finite element analysis model of the linear vibrating screen was established by Abaqus finite ...
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The dynamic response of the vibrating screen at any time can be obtained through finite element analysis and the result is used to judge whether the intensity meets the deformation requirements ...
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The 3D-model of the vibratory screening conveyor is designed in the SolidWorks software; the strength analysis of the conveyor's springs is performed using the finite-element method integrated ...
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The finite element model was finished in ANSYS, as shown in Fig 3. Fig. 3. Finite element model of vibrating screen PKOK k~ Å'~ =¯ ~Å'~¯ Å'ƺ Ư=~ ~ ºÆº= Natural characteristic is composed of natural frequency, natural vibration modes and other modal parameters.
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3. Analysis of Finite Element Model Structure. To verify the results obtained by theoretical analysis and to optimize the structure dynamics, the finite element model of vibrating screen was set up using the finite element software ANSYS (Figure 5).The vibration exciters were replaced by the concentrated mass points with the same quality because …
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This behavior has been studied by means of finite element analysis and compared with data obtained from a real case scenario, in which a helical spring failed. The 3D computational model was developed using the geometric characteristics and material properties of a fractured spring, as well as the loading characteristics of a specific …
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A finite element model of mining vibrating screens is established. Simulations are carried out and the spring failure influence rules of spring failure on the dynamic characteristics of mining ...
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3.1. 3D Finite Element Modeling. In this paper, the vibrating screen used in tunnel construction is chosen for study. Figure 1(a) shows its structure which is composed mainly of a frame, a sieve, an exciter, and four support springs. The size of the screen is 1.125 meter long, 0.925 meter wide, and 0.14 meter high, and screen hole is square and ...
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Dynamic models of vibrating screens can simulate motion of the vibrating screen structure and show good agreement with experimental measurements [27] and finite element method (FEM) results [22]. ...
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DOI: 10.1080/15567036.2019.1604905 Corpus ID: 146054679; Research on impact characteristics of screening coals on vibrating screen based on discrete-finite element method @article{Wang2020ResearchOI, title={Research on impact characteristics of screening coals on vibrating screen based on discrete-finite element method}, …
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Aiming at the design defects of the existing structure of the linear vibrating screen, the finite element analysis model of the linear vibrating screen was established by Abaqus finite element analysis software. The modal characteristics and dynamic stress distribution were studied, and an improved scheme was proposed.
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The finite element method (FEM) was performed on the spring model to observe the distribution of stress and damage. The fatigue life simulation was performed and analyzed for materials SAE1045-450-QT, SAE1045-595-QT, and SAE5160-825-QT. when using the loading sequences is predominantly tensile in the nature; the life of mounting in …
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Finite element models of the screen were developed and the new screen proves to have much higher structural strength with an enhanced dynamic behavior. More recently the author of this paper proposed a general theoretical model to study the dynamic behavior of high loaded vibrating screens ( Baragetti and Villa, 2014 ).
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on Abaqus. Abstract Aiming at the design defects of the existing structure of the linear vibrating screen, the finite element analysis model of the linear vibrating screen was established by Abaqus finite element analysis software. The modal characteristics and dynamic stress distribution were studied, and an improved scheme was proposed.
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In this paper, we simulated the complex particle flow-behavior and screening efficiency on a linear vibrating screen using the Discrete Element Method (DEM). The simulations were validated with data from an adjustable experimental prototype screen. Then the novel application of non-linear regression modeling based on Support Vector …
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Finite Element Modeli ng of a Vibrating Touch Screen Actu ated by Piezo Patches 55 Fig. 6. The fre quency response function (FRF) of the point 8 (t he center point on the glass
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Numerical finite element models were generated to investigate the structural and dynamic behavior of a standard vibrating screen. These analyses allowed the …
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A large vibrating screen is crucial to advancing the large scale coal preparation for the clean and efficient utilization of coal. A comprehensive review of advanced design techniques and methods for a vibrating screen have been presented. Almost 71% of all the literature were published during last five years. (2)
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In this paper a finite element analysis (FEA) on a reconfigurable vibrating screen (RVS) is carried out to determine whether the structure will perform as desired under extreme working conditions ...
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Finite Element Modeling of a Vibrating Touch Screen Actuated by Piezo Patches for Haptic Feedback ... To investigate the trade-offs in our design, we developed a finite element model of the screen and four piezo actuators attached to its surface in ABAQUS. The model utilizes the well-known Hooke's law between stress and strain extended by ...
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