Use Of ANSYS Research Articles

Systematic literature review of software tools for modeling heat transfer in phase change materials for building applications

Abstract New buildings in the European Union must attain nearly zero-energy status, emphasizing minimal energy consumption, partly met by on-site or nearby renewable sources. However, the fluctuating nature of on-site renewables poses a challenge, necessitating effective energy storage solutions. Addressing this, the use of phase change materials (PCMs) in building envelopes emerges as a promising trend. PCMs efficiently store excess thermal energy during abundance and release it when renewable generation falls short, ensuring a consistent energy supply. Introducing novel building components is time-intensive, with on-site testing demanding substantial resources. Numerical studies offer an efficient alternative, making modeling tools crucial. These tools facilitate exploration of design concepts under diverse conditions, allowing iterative refinement and optimization. This paper conducts a systematic literature review evaluating five prominent software programs—COMSOL, ANSYS, MATLAB, EnergyPlus, and TRNSYS—designed for modeling heat transfer within PCMs for building applications. In closer detail paper explores the use of ANSYS for heat transfer analysis for phase change materials.

Experimental and numerical investigation of nanomaterial-based structural composite

Abstract In this work, we discussed multi-phase composites fabrication and analytical as well as experimental analysis. Shear mixing of multi-walled nanotube (MWCNT) and epoxy is used to create nanocomposites. Ultrasonication, magnetic stirring, and moulding using the hand layup technique were the procedures used for sample preparation. Curing and cutting were performed as well, all in accordance with ASTM standards. This research uses an experimental method for assessing material qualities and backs up its findings with an analytical one for verification. It can be shown that the outcomes of both experiments and analyses are consistent. The structural analysis of a composite sample is probed by using a further analytical validation strategy. In this research, we examined the effects of varying the MWCNT content of the matrix. The tensile strength was shown to rise up to 0.5% MWCNT content in the matrix. For 0.7% MWCNT reinforcement in the matrix, tensile strength drops as a result of agglomeration. This research also explored the use of ANSYS for critical buckling analysis on many different multi-phase nanocomposite samples. The critical buckling resistance capability of the various configurations of composite materials was examined, and the model’s efficacy was shown via validation against existing literature.

A unified buckling formulation for linear and nonlinear analysis of laminated plates using penalty based [formula omitted] FEM-HSDT model

In this paper, the effect of pre-buckling boundary conditions and the type of nonlinearity for stress stiffening used in different linear and nonlinear buckling approaches is studied for laminated composite plates. The study is conducted using a C0 finite element (FE) plate model, employing a unified C1 higher-order shear deformation theory (HSDT). The set of governing equations is derived using the principle of virtual displacement and solved using the tangent-based arc-length method in conjunction with a simple branch switching technique. The performance of the present C0 FE model is assessed through a validation exercise and comparison with results obtained via the use of ANSYS and, for linear analysis, Navier solution, as well as solutions available in the literature. The influence of the different in-plane loads, boundary conditions, side-to-thickness ratio, fiber orientation, types of imperfection and penalty stiffness matrix are also examined. The results show that the same boundary conditions must be utilized in both pre-buckling and linear eigenvalue analyses for accurate and realistic predictions of critical buckling loads, as confirmed from the nonlinear buckling analyses. Furthermore, the critical buckling loads obtained using Green–Lagrange nonlinearity are observed to be more conservative than those obtained using von Kármán nonlinearity. The nonlinear buckling approach is a generalized approach while the nonlinear eigenvalue approach has a limited range of application.

Analysis of Wind Effects on Different Shapes of Tall Buildings

The rapid expansion of cities and increasing population means that land is limited and what land is available is shaped in an erratic manner, while its demand is increasing day by day. Therefore, to cope with this increasing demand and to achieve maximum utilization of resources, tall buildings are being built. However, these buildings are extremely vulnerable to lateral loads, particularly wind loads.To ensure the safety of these buildings, wind tunnel studies are used to examine the effects of wind loads. To combat the issue of shortage of wind tunnel facilities in the world, numerical analysis is used instead. Thus, this project aims to analyse the impact of wind effects on high-rise buildings of different shapes with the help of CFD, by making use of ANSYS. The wind effects have been assessed by obtaining the velocity profile and turbulent profile, pressure contours for different faces of the building, and velocity streamlines for the plan and elevation of the building.

The use of ANSYS for modelling the energy distribution in steady mode with electron beam welding

The article is devoted to solving the problem of modelling the distribution of energy in the steady mode with electron beam welding with the means of ANSYS Academic Student. The authors propose the implementation of the simulation model to allow evaluating the density of the heat field in the assembly unit of the product when it is connected to its elements by means of electron beam welding. Two imitation models are implemented for one of the types of aerospace products, made of titanium alloy and aluminum alloy. Such models allow research to assess the effect of technological parameters of the process of electron beam welding on the heating intensity of the zone near the weld. A series of experiments with visualization of their results for various power values was carried out.

FEA based fatigue crack growth analysis

The AA6061-T6 aluminium alloys are hugely applicable, where strength of material is predominant. Majority of the failure of such type of structure is due to fatigue. The observation of fatigue crack enhancement is very useful to predict the remaining existence of the shape and therefore, to understand the fatigue failure. By knowing the plastic zone, crack growth rate can be approximated on the basis of plastic zone size. It helps to save time and material that is required in experimentation to evaluate crack growth rate. Many researchers investigated the dependency of fatigue crack enhancement on plastic area size; however there may be restricted literature to be had on plastic area dedication of AA6061-T6 aluminium alloys. In this research article the fatigue crack enhancement rate of AA6061-T6 aluminium alloys experimentally and plastic zone is determined at crack tip when crack advances using ANSYS. Fatigue crack growth tests were performed to record the ‘No. of cycles’ and ‘Stress intensity factor’ as crack advances. The crack growth rate in steady state regime was determined and analyzed. The crack advancement was also analyzed in ANSYS and ‘No. of cycles’ and ‘Stress intensity factor’ were determined analytically. A comparison of experimental data and ANSYS data was made to check the suitability of application of ANSYS in fatigue crack increase evaluation of AA6061-T6 aluminium alloys. Finally plastic region at crack tip changed into decided the use of ANSYS.

Vibration Evaluation of Laminated Hybrid Composite using Finite Element

the winning studies sample in composite is for the development of composite with carbon fiber. it's far crucial to break down the vibration behavior of composite for powerful usage in severa applications so that they experience with one-of-a-type types of stacking scenario and particular varieties of vibration with numerous stacking succession of filaments. CFRP s have immoderate firmness, and light-weight homes so their packages had been diverse. Be that as it may, CFRP s enjoy the ill effects of a high recurrence vibration. in this paper, numerical examinations have been finished to don't forget vibration behavior of composite overlaid shafts the use of ANSYS 18.1 programming. From the results, the effect of fiber stacking succession at the common frequencies are researched.

Influence of metal frame on heat protection properties of a polystyrene concrete wall

The use of novel thermal-efficient building materials and technologies that allow increasing the level of thermal protection of external envelope structures and reducing the time for construction are of practical interest and represent a relevant task in the conditions of rapidly changing and increasing requirements to energy efficiency of buildings. This research aims at simulating the process of spatial heat transfer in a multilayer non-uniform structure of an external cast-in-place framed wall produced from polystyrene concrete with a stay-in-place formwork. Based on the physico-mathematical model developed with the use of ANSYS and COMSOL software complexes, parametric analysis of the impact of various factors on thermal behavior of the external wall was performed with the account of heat-stressed frame elements. The nature of temperature fields distribution in a polystyrene concrete structure was defined, and its thermal protection properties were investigated. The impact of a metal frame on thermal protection properties of a wall was found to be insignificant.

Influence of metal frame on heat protection properties of a polystyrene concrete wall

The use of novel thermal-efficient building materials and technologies that allow increasing the level of thermal protection of external envelope structures and reducing the time for construction are of practical interest and represent a relevant task in the conditions of rapidly changing and increasing requirements to energy efficiency of buildings. This research aims at simulating the process of spatial heat transfer in a multilayer non-uniform structure of an external cast-in-place framed wall produced from polystyrene concrete with a stay-in-place formwork. Based on the physico-mathematical model developed with the use of ANSYS and COMSOL software complexes, parametric analysis of the impact of various factors on thermal behavior of the external wall was performed with the account of heat-stressed frame elements. The nature of temperature fields distribution in a polystyrene concrete structure was defined, and its thermal protection properties were investigated. The impact of a metal frame on thermal protection properties of a wall was found to be insignificant.

Coupled Finite Volume and Finite Element Method Analysis of a Complex Large-Span Roof Structure

The main goal of this paper is to present coupled Computational Fluid Dynamics and structural analysis for the precise determination of wind impact on internal forces and deformations of structural elements of a longspan roof structure. The Finite Volume Method (FVM) serves for a solution of the fluid flow problem to model the air flow around the structure, whose results are applied in turn as the boundary tractions in the Finite Element Method problem structural solution for the linear elastostatics with small deformations. The first part is carried out with the use of ANSYS 15.0 computer system, whereas the FEM system Robot supports stress analysis in particular roof members. A comparison of the wind pressure distribution throughout the roof surface shows some differences with respect to that available in the engineering designing codes like Eurocode, which deserves separate further numerical studies. Coupling of these two separate numerical techniques appears to be promising in view of future computational models of stochastic nature in large scale structural systems due to the stochastic perturbation method.

Dynamic analysis of a 5-MW tripod offshore wind turbine by considering fluid–structure interaction

Fixed offshore wind turbines usually have large underwater supporting structures. The fluid influences the dynamic characteristics of the structure system. The dynamic model of a 5-MW tripod offshore wind turbine considering the pile–soil system and fluid structure interaction (FSI) is established, and the structural modes in air and in water are obtained by use of ANSYS. By comparing low-order natural frequencies and mode shapes, the influence of sea water on the free vibration characteristics of offshore wind turbine is analyzed. On basis of the above work, seismic responses under excitation by El-Centro waves are calculated by the time-history analysis method. The results reveal that the dynamic responses such as the lateral displacement of the foundation and the section bending moment of the tubular piles increase substantially under the influence of the added-mass and hydrodynamic pressure of sea water. The method and conclusions presented in this paper can provide a theoretical reference for structure design and analysis of offshore wind turbines fixed in deep seawater.

Методика расчета напряженного состояния в плоскости кривошипа между шейками коленчатого вала

The method of stress state analysis in the section of crankshaft crank located at the top and bottom dead points of the piston stroke, without considering additional cavities in journals (except for an oil channel) is proposed. The problem of the determining stress state in the crankshaft journal overlapping in an elastoplastic statement with considering large displacements is solved for the first time. A parametric crankshaft crank model taking into account all the geometric features of its design (including an oil channel) is built. The oil channel position considered as an example is characteristic of the first and last crankshaft cranks. Methodological comments to the proposed models based on use of ANSYS 10 ED are given. It allows engineering and design staff to understand the model, refine it in accordance with the drawings and perform optimization of the geometric parameters of the crankshaft by the durability criterion

Study of the Influence of the Elastic Rubber Cushion on Product Quality Formed by a Multi - Point Forming (MPF) Process

The Multi-Point Forming (MPF) is an advanced flexible manufacturing technology for three – dimensional sheet metal forming. This is replacing the conventional solid dies by a set of discrete punches called (punch group). This work presents the design and manufacturing of (MPF) dies. It covers also, the effect of using an elastic cushion on the quality of products. This technique eliminates the formation of dimples which, otherwise reduces the quality of product. The work falls into two parts. Part one includes the use of ANSYS, which employs a finite element method (FEM) for the simulation of MPF components, namely: upper jaw, lower die and cushion. In the other part (experimental), a complete MPF die was designed and manufactured in the local market. The copper sheet metal was selected to study the influence of the elastic cushion on the quality of product which formed by MPF process. This rubber was used to avoid the dimples occurring on the metal surface. Experimental and numerical results showedthatthis technique produces a better quality free from dimples. The cushion proved to be effective in elimination of the thickness change. The thickness change was found to be in the range (0-0.05) for a blank of 2 mm. Hence, it is recommended that the (MPF) method is effective in product quality. However, two layers of cushion are necessary to separate between the workpiece and pins to reduce the work piece deformation. Also, the numerical simulation was used by (ANSYS) software which was compared with the experimental result. A good agreement for numerical and experimental results was found.

The Analysis of Prototype Cast Constructions and the Assessment of their Technological and Exploitation Properties

The article describes the application of various methods of rapid prototyping for manufacturing of prototype castings. This technology assumes that the properties of such a casting are similar to properties of a casting obtained in serial production involving die-casting technologies or high pressure die casting. However, other conditions of metal preparation, pouring, and the solidification process, related to the specificity of manufacturing of a single casting with the application of rapid prototyping, as compared to serial production generate different final properties. Numerical simulations of exploitation conditions, with the use of Ansys and Abaqus software, were conducted for selected constructions taking into account the final properties of a casting. MAGMASoft software was used for the analysis of the technological process for manufacturing of prototype castings, as well as in serial production. The article describes the consecutive stages for manufacturing of selected prototype castings - from the moment of designing to manufacturing of a ready-made element. The selected elements were produced with the use of rapid prototyping with a 3D Z-Corp printer and a FDM Titan machine, and then model sets were prepared for casting with the application of the lost wax casting technique.The conducted analysis was aimed at defining methodology for manufacturing prototype castings with the use of numerical simulation tools, especially the implementation of boundary conditions achieved as a result of solidification analysis and techniques of rapid prototyping. It was stated that final properties of a prototype casting and a serial casting may be different, which may impact the assessment of the construction under development. The use of numerical calculations for the assessment of a prototype and serial construction with exploitation parameters broadens the expertise with final properties of the analysed construction.

Analysis of Carburetor Modal Based on ANSYS

The choice of the element type of finite element is different and the division of elaborate degree of meshing is different, so the results of analysis on different modals are different. Combined with the use of ANSYS, specific practice analysis of modals, experimental result, various methods of modal analysis, this article states about the specific methods of modals analysis on carburetor.

Use of ANSYS for Thermal Analysis in Mass Concrete

With the increasing development of Brazil in recent years, major engineering construction works have been designed and built, particularly those involving large volumes of mass concrete, such as in the case of dams. Mass concrete, due to its large size and volume, presents a considerable temperature rise caused by cement grain hydration. This temperature rise can be sufficient to cause concrete crack and/or cracking, which may lead to serious problems. In this paper, we sought to study heat generation and temperature field in mass concrete through ANSYS software, which uses finite element method to analyze the problem. This program allows temperatures to be checked for different concrete ages. With that, it is possible to evaluate the temperatures obtained and the factors influencing the results in a short period of time at a low cost. With the help of the software, it is possible to check the temperatures for different concrete properties by analyzing them on different concreting days. Therefore, it was possible to establish that the properties of the concrete directly influence the temperature evolution phenomenon.

NUMERICAL ANALYSIS OF INFLUENCE OF EXOGENOUS FIRE IN DOG HEADING ON PARAMETERS OF THE AIR STREAM FLOWING THROUGH THIS HEADING

Flow of venƟlaƟon air stream through the dog heading with a fire centre is the flow with complex character, during which as a result of emission of fire gases into the mining atmosphere, there occur to disturbances of its flow. In the paper there is presented a nu merical analysis of an influence of exogenous fire in a dog heading, on the parameters of the venƟlaƟon air stream flowing through this heading. Modeling tests were carried out with a use of ANSYS soŌware, basing on the Finite Volume Method. For the made as sumpƟons, there were determined physical parameters of air stream flowing through the heading with a fire centre, and also changes in mass fracƟon of gases in this stream during its flow through the analyzed heading: oxygen, carbon monoxide and carbon dioxide. As a result of performed analysis over the fire centre , the local increase of velocity and temperature and violent decrease of staƟc pressure were record‐ ed. Model of heading presented in the paper gives possibiliƟes for development, and then the analysis of more compli‐ cated problems in a range of venƟlaƟon of minin g headings.

Finite Element Analysis of Gear Pair of Main Drive Gearbox Based on Workover Treatment

Considering the fact that the oil well conditions of LIAOHE oil field, the existing structure of the forced lifting and pushing system of work over rig is improved. Main drive gear pair of the forced lifting and pushing system improved is established to study the intensity of contact and modal in the operating process and the dynamic loads based on finite element method. Main failure forms in the condition of low speed and heavy duty is deduced from the distribution of the stress. Also, the maximum allowable stress and natural frequency is obtained. According to the simulation making use of ANSYS, a 3D contact stress analysis of several teeth and modal analysis in dynamic pre-stress of full teeth is illustrated with the rationality of the design.

Electromagnetic Analysis of the ITER Upper VS Coil

In order to control the plasma vertical stability of ITER, a novel magnet is developed, that is the vertical stability coil. The coil is located in the vacuum vessel and its safe operation is very important for ITER’s reliable working. During the normal operation, the coil should bear the electromagnetic force caused by the external superconducting magnet and plasma current. The electromagnetic load is one of the important factors to affect the lifetime of the VS coil. Therefore, it is necessary to calculate the magnetic field and evaluate the structural reliability under the electromagnetic load. In this paper, the current at the time “end of burn” was selected to perform the electromagnetic calculation. Based on the Maxwell equation, the magnetic field on the cross section of the upper VS coil was computed and the maximum electromagnetic force corresponding to the magnetic field was also presented. In order to verify the current design model, the finite element model was created by use of ANSYS. The Tresca stress was extracted and classified based on analytical design. The peak stress was compared with the ASME criteria. The analysis has verified the physical model from the perspective of electromagnetic load, and it will offer a guidance for the future optimization.

Analysis of nonstationary heating and cooling of a thermomagnetic engine gadolinium working element

The paper presents the results of calculating nonstatitionary heat exchange between a heattransfer agent (water) and a gadolinium working element of the thermomagnetic engine with the use of ANSYS 13.0 certified software. Recommendations for designing the thermomagnetic engine working elements are given based on the analysis of calculation results.