The Effect Of Mechanical Interactions Between The Casting And The Mold On The Conditions Of Heat Dissipation: A Numerical Model

Dyja, R.; Gawrońska, Elżbieta; Sczygiol, N.

doi:10.1515/amm-2015-0324

Cited by 12 publications

(9 citation statements)

References 9 publications

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“…The mechanical phenomena analysis in the elastic range was made using the equilibrium equations (1), which are supplemented by constitutive and Cauchy's equations (2), and boundary conditions (3). The mathematical model is based on solving the following system of equations [5,[8][9][10][11]:…”

Section: Mathematical Descriptionmentioning

confidence: 99%

“…Displacement boundary conditions are used in the discussed problems [2][3][4][5][6][8][9][10][11]. The nodes located on the contact surface of the gantry crane beam with the support column on the right side of the beam can not displace in three directions (u x =u y =u z =0) and the left side in two directions (u x =u y =0) (Fig.…”

Section: Mathematical Descriptionmentioning

confidence: 99%

“…The numerical model uses finite element method in the weighted residuals formulation [5,[8][9][10][11][12]. Equation 1is multiplied by the weighting function and integrated over the entire region.…”

Section: Mathematical Descriptionmentioning

confidence: 99%

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The effect of the gantry crane beam cross section on the level of generated stresses

2018

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The gantry cranes are currently one of the most popular devices to transporting loads. They can be used in many industries. This study focuses on the numerical analysis of only the portable gantry crane. The mathematical and numerical model of mechanical phenomena in the gantry crane beam was presented in this paper. This problem was solved by using of the Finite Element Method (FEM). The analysis was made to the cross-section of gantry crane beam which was the I-beam or box beam. The numerical simulations are limited to numerical analysis of strength of the gantry crane beam which was loaded by the motion of the load force along its length. As a result of the calculations, the stresses and displacements of the structure of gantry crane were obtained. The influence of beam shape change and changing the loading force position on generate the equivalent stress in the crane beam was evaluated. The research performed, which allows the estimated of the stress state, pointing out the critical areas and values, were made in order to increase the strength of the structure of the gantry crane.

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Section: Mathematical Descriptionmentioning

confidence: 99%

Section: Mathematical Descriptionmentioning

confidence: 99%

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The effect of the gantry crane beam cross section on the level of generated stresses

2018

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“…Equation (15) is completed by the initial condition and, boundary conditions of Dirichlet, Neumann and Newton type with the heat loss due to convection and radiation [15][16][17].…”

Section: Field Temperature Phase Transformations Kinetic Of Transfomentioning

confidence: 99%

Application of analytical methods for determination of hardness distribution in welded joint made of S1100QL steel

Piekarska

Sága

Goszczyńska-Króliszewska

et al. 2018

MATEC Web Conf.

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The prediction of hardness distribution in the cross section of welded join made of S1100QL steel is performed in this study on the basis of analytical methods. Analytical CCT diagram and volume fraction of each phases of S1100QL steel as a function of cooling time t 8/5 are determined. A numerical simulation of welding process is performed in ABAQUS. Thermal cycles and temperature field in welded joints are determined. Prediction of hardness distribution in the cross section of the joint is performed on the basis of obtained cooling times t 8/5 . Results of numerical simulations are compared with experimentally obtained results.

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“…Nowadays the ideal thermal contact and contact via the gap are the area of interest of many scientists. The appropriate description of the mentioned phenomenon is required in the analysis of the solidification problems where the mold and the casting are considered [5,6]. Numerical investigations based on the finite element method (FEM) in the case of air gap formation process Brought to you by | MIT Libraries Authenticated Download Date | 5/9/18 3:08 PM during solidification of pure metal was discussed in [7].…”

Section: Introductionmentioning

confidence: 99%

Computer Simulation of the Solidification Process Including Air Gap Formation

Skrzypczak

Węgrzyn-Skrzypczak

Sowa

2017

Archives of Foundry Engineering

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The paper presents an approach of numerical modelling of alloy solidification in permanent mold and transient heat transport between the casting and the mold in two-dimensional space. The gap of time-dependent width called "air gap", filled with heat conducting gaseous medium is included in the model. The coefficient of thermal conductivity of the gas filling the space between the casting and the mold is small enough to introduce significant thermal resistance into the heat transport process. The mathematical model of heat transport is based on the partial differential equation of heat conduction written independently for the solidifying region and the mold. Appropriate solidification model based on the latent heat of solidification is also included in the mathematical description. These equations are supplemented by appropriate initial and boundary conditions. The formation process of air gap depends on the thermal deformations of the mold and the casting. The numerical model is based on the finite element method (FEM) with independent spatial discretization of interacting regions. It results in multi-mesh problem because the considered regions are disconnected.

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The Effect Of Mechanical Interactions Between The Casting And The Mold On The Conditions Of Heat Dissipation: A Numerical Model

Cited by 12 publications

References 9 publications

The effect of the gantry crane beam cross section on the level of generated stresses

The effect of the gantry crane beam cross section on the level of generated stresses

Application of analytical methods for determination of hardness distribution in welded joint made of S1100QL steel

Computer Simulation of the Solidification Process Including Air Gap Formation

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