Workbench Software Research Articles

Creep analysis of Water tank made of Polypropylene (PP) and High-Density Polyethylene (HDPE) polymer material using ANSYS Simulation

The present study investigates the creep behavior of water tank manufactured from Polypropylene (PP) and High-Density Polyethylene (HDPE) polymeric material at 40 °C using ANSYS simulation software. Creep fracture is one of the major industrial problems for a product used for a long period of time. The creep analysis using simulation software is one of the ways to predict the life and durability of a plastic product with low cost and may help in optimizing its design. The PP and HDPE manufactured water tanks were commonly used for storing water in household and industrial applications. In this paper, a water tank were designed using an academic 3-Dimensional SOLIDWORKS software and ANSYS WORKBENCH were used for analyzing the creep strain for the developed CAD model. The CAD modelled water tank was tetrahedron meshed and simulated using static structural analysis and varying hydrostatic pressure were applied on the inner walls of the tank. The base of the tank was constrained to fixed. The analytical model based on modified time hardening creep model were implemented to analyze the creep strain. From the simulation, equivalent (Von-Misses) Stress, equivalent creep strain and total deformation were observed for the developed model. The obtained Creep strain-time graph were used to analyze the creep strain of PP and HDPE materials over a long period of time. From the simulation, it is observed that the material PP is more creep resistant than HDPE as equivalent stress of PP is more than HDPE at the applied hydrostatic pressure and the deformation for PP material were less compared to HDPE. The simulated limiting creep strain of PP as well as HDPE was in good agreement with the comparison of maximum limiting creep strain calculated from the material database.

Chemical Kinetics Simulation of Hydrogen Generation in Rotating Gliding Arc Plasma

This work reports hydrogen (H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ) formation using methane nitrogen gas mixture as a feed stream in a rotating gliding arc (RGA) reactor. The H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> formation in the RGA was quantified by experimental studies, and the results were validated by simulating plasma chemical kinetics using the Chemical Workbench software. The simulation was performed for an experimental condition, where methane (1%) and nitrogen (99%) gas mixture was fed to an RGA at 5, 10, 25, and 40 lpm. For these flow rates, the simulation predicted 1417, 802, 299, and 67 ppm of H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> , respectively. Also, the results show that at these flow rates, the reduced electric field (E/N) of the discharge was 78, 83, 92, and 101 Td and the gas temperature was 3800, 4108, 4590, and 4975 K respectively. The simulation result was in reasonable agreement with the experimental data, which shows 1276, 717, 213, and 61 ppm of H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> in the product gas, respectively, at 5, 10, 25, and 40 lpm. This work marks the first step toward process optimization through the simulation approach.

Оптимизация проточной части осевого насоса с использованием поверхности отклика

To design high-efficiency vane pump flow part it is necessary to use various optimization algorithms, based on which the geometrical parameters of designed flow part are changed in order to provide the required value of some integral design parameter. The article considers the numerical method for finding an extremum based on one of the algorithms included in the DesignXplorer optimization tool, which is an integral module of the Ansys Workbench software package. Response Surface Optimization (RSO) is a kind of mathematical model (metamodel) describing analytical dependence of output parameters on input parameters. The function is based on the approximation of the numerical experiment data (Design of Experiments). The use of this method allows obtaining more efficient flow path of the catalog axial pump OP-5 without performing lengthy experimental research of the effect of the geometric parameters of the flow path on the pump characteristics.

Design Analysis and Weight Optimization of Mono Leaf Spring by Using ANSYS and Validation with Practical Testing

Abstract: The present paper having a work on Design and analysis of composite leaf spring. The analysis has been conducted by using ANSYS-14.5 workbench software with the help of static structural tool. Two composite leaf springs with full length leave made of E-Glass fiber and Carbon fiber composite material has been used. The results of Conventional steel leaf spring have been compared with the present results obtained for composite leaf spring. Carbon fiber material is better in strength and lighter in weight as compared to the conventional steel leaf spring as well as Glass fiber leaf spring. We worked on different loading condition to validated UTM result with hand calculation and ANSYS result.

Contact stress analysis of a spur gear using Lewis and Hertz theory

The rapid development of the automobile and aircraft industries has made applying gear technology necessary. Gears offer the benefits of efficiency, reliability, simplicity and a higher speed ratio with power transmission. However, they cannot transmit power over a long period, are more expensive when compared to belts and chain drives and requires continuous lubrication. They are used for transmitting high load in gear tools. The gear teeth fail when subjected to a high load beyond a certain limit. A deciding factor in gear design is the amount of stress developed on the contact surface of the mating gears. This paper deals with contact stress analysis of spur gear. The theoretical analysis presented in this paper aims to analyse rolling bearing contacts based on the principles of the Hertz and Lewis equations. A 3D domain-based finite element method was used to calculate the stresses between the contact surfaces of the structure. Contact analysis was performed using ANSYS Workbench software to figure out the deformation and optimum stress developed on the teeth of the gear. The simulation results indicated that the stress distribution on the gear contact surface has a maximum value of 144.82 MPa, while the deformation is at a maximum value of 0.01676 mm. The safety factor indicates the maximum level of 15, indicating the safety of the design.

Farklı Malzemelerle Biyel Kolunun Deformasyon ve Gerilme Analizi

Today's vehicle technology is based on internal combustion engines. However, hybrid models have been introduced to the market in recent years. The purpose of these models is to reduce fuel consumption. Hybrid vehicles are based on the principle of simultaneous operation of an electric and gasoline engine. According to this working principle, it is predicted that the use of internal combustion engines will continue for a long time. For these reasons, studies on fossil fuel-powered engines are still ongoing and are expected to continue in the future. Appropriate design and material selection come to the fore in studies on the engine and the machine elements that make up the engine. Therefore, it is the design and the suitability of the material used and the weight that should be considered in the production of the parts that make up the engine. The most important part to be considered while designing the engine elements is to maximize the effect of the engine on the vehicle, namely the performance, and to carry out the necessary studies to reach this level. For this, the design of the elements that make up the engine and the connecting rod, which is the subject of this study, is of great importance. Although the design factor in a connecting rod alone, which is a part of the engine and is expected to withstand the stresses formed in the engine, does not seem to be effective, the performance of the engine in terms of design and therefore weight is also affected by this situation. In this study, necessary analyzes were made in terms of performance by designing the connecting rod. Using four different materials; aluminum alloy, titanium alloy, steel alloy and cast iron, connecting rods designed using an ANSYS Workbench software were analyzed. In the analysis, studies on stress and deformation were carried out. As a result, it was concluded that the aluminum alloy material is the most suitable design in terms of both weight and material supply.

Influence of Wind Angle Incidence and Architectural Elements on the External Pressure Coefficient of Hyperbolic Paraboloid Roofs

In the study of wind loads in buildings, the aerodynamics of roofs with parabolic shapes, which cause complex pressure distributions due to their sensitivity to wind, are often omitted and neglected by several codes and norms. In this way, computer simulations are a viable and reliable alternative. Here, wind action was considered in an innovative project composed of parabolic and circumferential generatrices: the Church of Saint Francis of Assisi. Designed by Brazilian architect Oscar Niemeyer in Belo Horizonte, Brazil, two paraboloid vaults and three circular arches of reinforced concrete composed its structure. This work generated great international recognition for the architect after 1943, as the design of the roofs did not require walls. For geometry modeling, Autodesk AutoCAD software was adopted, and the models were considered in a control volume. The simulations were performed using Ansys Workbench software and the RNG K-Epsilon turbulence model. The wind speed at different heights was calculated using the Power-law approximation. A basic wind speed of 30 m/s was adopted, and the mesh used was composed of tetrahedrons. To validate the methodology, different models with hyperbolic-paraboloid roofs from the literature were considered. In addition, the visualization of the flow around the geometry from the streamlines, the wind profile, and the analysis of the isobaric lines of the external pressure coefficients for different directions of incidence and architectural elements that make up the building were presented.

Analisis Frekuensi Natural Rangka Main Landing Gear Pesawat UAV Menggunakan Ansys Workbench

The main landing gear is one of the important components in UAV aircraft. This paper aims to analyze the natural frequency of the main landing gear and determine its normal mode shape. This analysis is important so that no resonance causes damage to the main landing gear components. The main landing gear uses Aluminum 6061 material and the analysis is carried out using the finite element method with the help of Ansys Workbench software. The analysis showed that the natural main landing gear frequencies for mode 1 to mode 6 were 76.04 Hz, 85.07 Hz, 167.82 Hz, 201.92 Hz, 288.39 Hz, and 327.00 Hz, respectively. The maximum deformation of the main landing gear for mode 1 to mode 6 is 33.73 mm, 35.35 mm, 48.16 mm, 44.62 mm, 38.14 mm, and 41.51 mm, respectively.

Parameter Optimization and Bending Performance Analysis of a Corrugated Steel Plate-UHPC Composite Bridge Deck with PZ Shear Connectors

Composite bridge decks consisting of steel plates and concrete are used to minimize fatigue cracking and damage of asphalt pavement of orthotropic steel bridge decks subjected to wheel loads. This paper presents a methodology to optimize the parameters and mechanical performance of a corrugated steel plate-ultrahigh-performance concrete (UHPC) composite bridge deck with panel zone (PZ) shear connectors using the improved non-dominated sorting genetic algorithm (NSGA-II). A 3-D finite element model is established in ANSYS Workbench software to conduct numerical parameter analysis, and ABAQUS software is used to analyze the optimized model’s mechanical performance. The results show a significant improvement in the mechanical performance of the optimized composite bridge deck, with a 27.66% decrease in the maximum stress in the UHPC layer. The vertical displacement of the optimized composite bridge deck increases sharply when the load reaches 90% of the ultimate load, and a significant change in the strain is caused by the sliding displacement between the UHPC layer and steel plate. The bottom part of the corrugation yields first in the middle span, followed by failures of the ribs. In addition, as the tensile stress increases, damage occurs first in the UHPC layer near the PZ shear connectors in the shear bending area and the bottom in the bending area, expanding significantly to the entire bending and loading areas. The results indicate that the parameter optimization of the corrugated steel plate-UHPC composite bridge deck using NSGA-II improves the structure’s bending performance.

Fatigue Analysis and Design Optimization of Excavator Bucket

Construction activity is continually rising, and the strong performance of construction equipment ensures rapid expansion in the earth moving machine sectors. This study focuses on the method for calculating the digging forces needed to dig the terrene for minor building work. This approach calculates the force and is also used to perform a fatigue analysis to determine the bucket's fatigue life and failure rate. Because the current excavator arm mechanism is subjected to deformation and bending forces during lifting and digging operations, failure at the bucket end of the arm happens frequently. The excavator arm is analysed using ANSYS workbench software at current digging force and lifting capacity. An analytical approach has also been provided for static force analysis of excavator bucket.

A Study of the Fluid–Structure Interaction of the Plaque Circumferential Distribution in the Left Coronary Artery

Atherosclerotic plaques within the coronary arteries can prevent blood from flowing to downstream tissues, causing coronary heart disease and a myocardial infarction over time. The degree of stenosis is an important reference point during percutaneous coronary intervention (PCI). However, clinically, patients with the same degree of stenosis exhibit different degrees of disease severity. To investigate the connection between this phenomenon and the plaque circumferential distribution, in this paper, four models with different plaque circumferential locations were made based on the CT data. The blood in the coronary arteries was simulated using the fluid–structure interaction method in ANSYS Workbench software. The results showed that the risk of plaque rupture was less affected by the circumferential distribution of plaque, and the distribution of blood in each branch was affected by the circumferential distribution of plaque. Low TAWSS areas were found posterior to the plaque, and the TAWSS &lt; 0.4 Pa area was ranked from highest to lowest in each model species: plaque on the side away from the left circumflex branch, plaque on the side away from the heart; plaque on the side close to the heart; and plaque on the side close to the left circumflex branch. The same trend was also found in the OSI. It was concluded that the circumferential distribution of plaques affects their further development. This finding will be useful for clinical treatment.

Multi-Objective Optimization Design of Ladle Refractory Lining Based on Genetic Algorithm.

Genetic algorithm is widely used in multi-objective mechanical structure optimization. In this paper, a genetic algorithm-based optimization method for ladle refractory lining structure is proposed. First, the parametric finite element model of the new ladle refractory lining is established by using ANSYS Workbench software. The refractory lining is mainly composed of insulating layer, permanent layer and working layer. Secondly, a mathematical model for multi-objective optimization is established to reveal the functional relationship between the maximum equivalent force on the ladle lining, the maximum temperature on the ladle shell, the total mass of the ladle and the structural parameters of the ladle refractory lining. Genetic algorithm translates the optimization process of ladle refractory lining into natural evolution and selection. The optimization results show that, compared with the unoptimized ladle refractory lining structure (insulation layer thickness of 0 mm, permanent layer thickness of 81 mm, and working layer thickness of 152 mm), the refractory lining with insulation layer thickness of 8.02 mm, permanent layer thickness of 76.20 mm, and working layer thickness of 148.61 mm has the best thermal insulation performance and longer service life within the variation of ladle refractory lining structure parameters. Finally, the results of the optimization are verified and analyzed in this paper. The study found that by optimizing the design of the ladle refractory lining, the maximum equivalent force on the ladle lining, the maximum temperature on the ladle shell and the ladle mass were reduced. The thermal insulation performance and the lightweight performance of the ladle are improved, which is very important for improving the service life of the ladle.

Correlation analysis of mechanical properties of dilated packer cylinder

The expanding packer is a commonly used packer, which is widely used in the process of oil and gas production. Taking the most commonly used K344 hydraulic expansion packer as the research object, using SolidWorks and ANSYS Workbench software to establish a two-dimensional finite element model of the K344 packer rubber cylinder, carry out stress analysis on the packer rubber cylinder, and obtain the packer rubber cylinder Von Mises stress and contact stress nephograms. The research results show that when the packer is in the working state of internal pressure of 20.0 MPa, the stress level of the upper and lower rubber cylinder seats is the highest, and the maximum Mises stress is 54.86 MPa; the stress level at both ends of the rubber cylinder is the highest, up to 43.465 MPa, and the strain energy density on both sides is the largest; when the packer is in the working state, the shoulder deformation is the largest, with the increase of the pressure, the deformation trend slows down, and the strain energy density has a linear relationship with the working pressure. The obtained results can provide a theoretical basis for the structural design of the expandable packer.

Influence of excitation current on electromagnetic vibration and noise of rotor magnetic shunt hybrid excitation synchronous motor

To explore the influence of the excitation current in the rotor magnetic shunt hybrid excitation synchronous motor (HESM) on the vibration and noise of the motor, the finite element analysis of the hybrid excitation motor was carried out by using ANSYS Workbench software and noise sources for analysis. Firstly, air-gap flux density at different excitation currents and density vector diagrams are studied. Secondly, radial electromagnetic force’s order and frequency characteristics under different excitation currents are discussed. Finally, the modal analysis of the stator of the motor is carried out. The motor’s vibration response and noise variation under different excitation current conditions are summarized. The simulation analysis and experimental verify that the motor’s vibration response and noise increase obviously when the excitation current is significant, and the vibration acceleration of different orders increases.

Critical speed analysis of the shafting rotor of the vertical long shaft fire pump under the different positions of the impellers

For multi-stage pumps, the change of the impeller stage spacing will have a greater impact on the dynamic characteristics of the shafting rotor. The paper took XBC18-178-240LC3 vertical long shaft fire pump as the research object, using ANSYS Workbench software to study the relationship between the critical speed of the shafting rotor and the different positions of the impellers. First, 9 shafting rotors (based Z4,Z5 and Z6 models) under the different positions of the impellers were established; and then the change law of the critical speed on 9 shafting rotors in the first 12 modes was studied. The results showed that different positions of the impeller on the shaft have a great impact on critical speed of the shafting rotor. With the increase of the distance between the impeller stages, the low-order critical speed (6th order and within) of the Z4 model shafting rotor decreases. However, the low-order critical speed (5th order and within) of the Z5 and Z6 model shafting rotors decreases with the increase of the distance between the impeller stages, and the high-order critical speed doesn’t satisfy this law. Considering static characteristics of the shafting rotor and actual engineering applications, the paper selected the Z5-stage spacing 800mm shafting rotor model as the best case, providing a theoretical support for the subsequent vertical long shaft fire pump design optimization.

Bullet Frangibility Factor Quantification by Using Explicit Dynamic Simulation Method

Frangible bullets have a unique property that disintegrates into fragments upon hitting a hard target or obstacle. This peculiar ability to become fragments after impact is called frangibility. In this study, frangibility testing was carried out theoretically via modeling using the explicit dynamics method with ANSYS Autodyn solver integrated by ANSYS Workbench software. This paper aims to analyze frangibility through two main factors: material properties and projectile design. The results show the scattering and remaining bullet fragments after impact. According to the modeling results, the frangibility factor values are 9.34 and 10.79, respectively. Based on the frangibility factor, errors based on the frangibility factor by comparing the experimental results and simulations for AMMO 1 and AMMO 2 are 10.5% and 1.09%. Based on simulation results, the AMMO 2 design bullet scattering pattern shows several scattering particles more than the AMMO 1 design, with the furthest distance scattering AMMO 1 and AMMO 2 bullets being 1.01 m and 2658 m.

Modeling and Simulating an Orthodontic System Using Virtual Methods.

Cone beam computed tomography (CBCT) is a modern imaging technique that uses X-rays to investigate the structures of the dento-maxillary apparatus and obtain detailed images of those structures. The aim of this study was to determine a functional mathematical model able to evaluate the elastic force intensity on each bracket and tube type element and the ways in which those components act on the orthodontic system being used. To analyze a real orthodontic system, we studied the case of a 13-year-old female patient. To transfer geometric information from tomographic images, we used the InVesalius software. This software can generate three-dimensional reconstructions based on sequences and files in the DICOM format and was purchased from CBCT equipment. We analyzed and processed the geometries of the converted tissues in InVesalius using the Geomagic software. After using the Geomagic software, we exported the resulting model to the SolidWorks software used in computer-aided design. In this software, the model is transformed into a virtual solid. After making the geometric model, we analyzed the model using the Ansys Workbench software, which incorporates finite element analysis techniques. Following the simulations, we obtained result maps, which showed the complete mechanical behavior of the analyzed structures.

Simulation Research on Thermal Characteristics and Experimental Study on Electronic Control Board of the Miniature High-Speed Digital Valve

The miniature high-speed digital valve is essentially a kind of miniature system that contains many nonlinear factors and involves multifield coupling among electromagnetic, mechanical, and liquid ones. In this study, the dimension of an electromagnetic structure is normalized into a unified variable, and the numerical analysis method is used to optimize the values of each parameter size on the premise of satisfying the requirements. The electronic control board is the control signal input equipment of the valve. The input changes of voltage and current directly affect the thermal characteristics of the valve. The electronic control board is the power source of the digital valves, and their high speed partially depends on the characteristics of the electronic control board. In this study, a control board for miniature digital valves was developed, which realizes the rapid rise and fall of current and meets the design requirements. A new electronic control board is manufactured, and a control platform for the electronic control board is built. Experiments demonstrate that there is no delay in the current rise and fall, showing that the valve achieves its dynamic response target. Using the finite element analysis software Workbench to simulate it numerically, the temperature field distribution in the original structure is not uniform, which affects the magnetic properties of the electromagnetic field. To address this disadvantage, this study proposes to insulate the heat source with thermal insulation material, which will not affect the temperature distribution of the entire electromagnetic components. The simulations show that the proposed method is effective and reliable.

Effects of Uniform Load on Externally Post-tensioning Composite Beams under Multiple Degrees of Shear Connection

Composite beams (steel and concrete) are used widely as the main structural elements in flexure in bridges and buildings. Such structures' design life would be decreased if the loads increased or if environmental deterioration could occur. Such modifications can reduce the strength of these members and therefore need to be considered for replacement or retrofitting.The current study presents an evaluation of the effect of shear connection with its different degrees from partial to full for the composite beams strengthened with post-tensioning tendons. It is known by design that the use of partial shear connection in composite beams requires that the sliding capacitance of the shear connectors shouldn’t be less than the maximum slip so that the composite section can reach the ultimate design load. The degree of shear connection over which the composite section is designed, as well as the span length of the beam, are the most important factors governing the maximum slip limit. This study was performed using numerical modelling by the finite element analysis method to simulate the bending behaviour of composite steel beams under uniform loading cases which were strengthened with three shapes of tendons profiles. The results of two finite element models have been compared with experimental results obtained from previous literature related to the same topic. This comparison was made to ensure the efficiency, effectiveness, and accuracy of the model used, using ANSYS Workbench Software.

Stress Distribution on Various Implant-Retained Bar Overdentures.

The purpose of this study was to evaluate the effects of various fabrication techniques and materials used in implant-supported mandibular overdentures with a Hader bar attachment over added stress distribution. Three-dimensional geometric solid models, consisting of two implants (3.3 mm × 12 mm) placed at the bone level on both mandibular canine regions and a Hader bar structure, were prepared. Model 1 simulated a bar retentive system made from Titanium Grade 5 material by Computer Numerical Control (CNC) milling technique without using any converting adapter/multi-unit element on the implants, while Model 2 simulated the same configuration, but with converting adapters on the implants. Model 3 simulated a bar retentive system made from Cobalt-Chromium material, made by using conventional casting technique with converting adapters on the implants. Static loads of 100 Newton were applied on test models from horizontal, vertical and oblique directions. ANSYS R15.0 Workbench Software was used to compare Von Mises stress distribution and minimum/maximum principal stress values, and the results were evaluated by using Finite Element Analysis method. As a result, the highest stress distribution values under static loading in three different directions were obtained in Model 1. Stress was observed intensely around the necks of the implants and the surrounding cortical bone areas in all models. In scope of the results obtained, using converting adapters on implants has been considered to decrease transmission of forces onto implants and surrounding bone structures, thus providing a better stress distribution. It has also been observed that the type of material used for bar fabrication has no significant influence on stress values in those models where converting adapters were used.