Papers by Keyword: ANSYS

Abstract: This paper presents a comprehensive structural, modal, and random vibration analysis of the SEAMS Payload using ANSYS 18.1 simulation tools. As a preliminary design-phase study, its goal is to perform a trade-off analysis between common aerospace materials before physical prototyping and validation. The study evaluates three aluminum alloys—5052- H32, 6061-T6, and 7075-T6—to optimize the payload frame structure for mechanical stresses encountered during launch and space operations. The analysis includes static structural loading to assess deformation and stress distribution, vibrational modal analysis to determine natural frequencies and mode shapes, and random vibration analysis to simulate launch-induced dynamic excitation. The simulation outcomes highlight the critical role of material selection in enhancing structural integrity, maximizing safety margins, and ensuring mechanical reliability of the payload in harsh launch environments.

Abstract: Tunnel Lining is One of the Primary Components, and its Cost is Directly Related to its Size; Therefore, Constructing the Lining in a Cost-Effective Manner is Crucial. Given the Adaptability of Modern Engineering Practices, Numerical Models Have Become Indispensable in this Study. this Work Uses Numerical Analysis(ANSYS) to Compare the Design Parameters for Tunnel Segments by Incorporating Macro-Synthetic Fibers. the Aim is to Assess the Impact of these Fibers on the Structural Performance and Safety of Tunnel Linings. the Analysis is Carried out Using ANSYS Software, which Simulates Tunnel Segment Behavior with Varying Fibercontents (0%, 5%, 10%, and 15%). the Study Focuses on Segmentdesign Parameters Including Total Deformation, Elastic Strain (equivalent, Normal, and Shear). the Results Reveal that Tunnel Segments with Higher Fiber Content, Especially at 15%, Demonstrate Improved Performance, with much Less Deformationand Elastic Strain than Segment without Fiber. the Present Study’s Total Deformations Results are Comparable to Winterberg, and Nitschke and Winterberg Methods. the Findings Highlight the Benefit of Fiber Reinforcement in Improving the Structural Stability and Safety of Tunnel Linings. this Study Highlights the Importance of Advanced Analytical Tools like ANSYS in Accurately Predicting Tunnel Segment Behavior under Operational Conditions, Guiding Future Tunnel Design Strategies.

Abstract: This study uses numerical simulation to examine the influence of variations in laser power and transition zone length on the tensile behavior of bimetallic samples designed to be manufactured by selective laser melting (SLM). The materials studied are 316L stainless steel-copper, chosen for their complementary mechanical properties and functional relevance in high-stress applications. The transition between the two materials was modeled by modulating the laser power according to different profiles (linear, concave or convex) and over different lengths (d(x) = 0 mm, 10 mm, 20 mm) in order to evaluate their impact on the simulated mechanical performance. The numerical results show that a gradual transition in laser power, combined with an extended transition zone, significantly improves stress distribution and leads to better mechanical integrity. Simulations performed in ANSYS provide an in-depth analysis of stress fields and highlight the crucial role of manufacturing parameter management. This study thus highlights the importance of precise control of manufacturing parameters in the 3D printing of bimetallic components and demonstrates, through numerical modeling, that optimized transition management can improve the mechanical integrity of parts produced by SLM. Experimental validation of these results will be an essential prospect for future work.

Abstract: The acoustic and performance characteristics of natural fiber amalgam-more especially, Luffa cylindrica fiber-reinforced polymer matrix composites (PMCs) filled with dissimilar proportions of cenosphere are examined in this study. Employing the Parametric Design Language (APDL) of ANSYS simulation modelling and experimental testing, the study intends to investigate the flexural and free vibration responses of these composites. Tensile strength, flexural strength, and acoustic absorption tests were performed on four distinct composite samples that contained 0%, 5%, 10%, and 15% (C-01, C-02, C03, C-04) cenosphere filler. Results showed that the composite's stiffness and load-bearing capacity were enhanced by 10% cenosphere-filled composite with highest flexural strength, modulus, and inter-laminar shear strength (ILSS). The composite's potential for noise-reduction applications was highlighted by acoustic testing, which showed substantial sound absorption at higher frequencies. Parametric studies revealed considerable changes in mechanical responses based on differences in thickness ratio, aspect ratio, and boundary conditions. Simulation models of experimental data demonstrated close agreement with the results. The created composite offers a lightweight, affordable, and environmentally friendly substitute for conventional materials and has potential for real-world uses in sectors like soundproofing, automobile, aircraft, and construction. The study comes to the conclusion that Luffa fiber composites packed with cenosphere are ideal for the development of sustainable materials.

Abstract: Thermal management plays a vital role in ensuring the overall performance. SSD (Solid State Drive) NVMe (Non-Volatile Memory Express) is latest generation of data storage that periodically generates unwanted heat. The present paper presents simulation result of heatsink orientation as presented in different models. The selected techniques include forced convection from air flow which will dissipate amount of heat from base area. We select M.2 NVME as study case which coupled with heatsink. The result was higher velocity resulting in lower gap temperature. Case VIII has the lowest temperature gap (3 Kelvin) while the highest is Case III (10.63 Kelvin). Then, the optimum model based on temperature and mass parameter is model B.

Abstract: An information model of an ancient building in Odessa was built during its restoration with the calculation and strengthening of load-bearing structures. The Autodesk Revit complex was used to build the model. Visualization was performed in the Lumion program. The load-bearing capacity of reinforced concrete structures – lintels and floor slabs – was checked. A technical examination showed that the floor slabs had no damage and did not need reinforcement, so a model of the slab was built in ANSYS 21R2 and an analysis of its load-bearing capacity and deformability was performed using the finite element method, which showed that the stresses and deflections of the slab under operating loads are significantly less than the maximum values. And upon visual inspection of the jumpers, it turned out that some of them were damaged in the stretched area and needed reinforcement. This reinforcement was carried out with steel fiber reinforced concrete, having previously carried out laboratory experimental studies and computer modeling in Autodesk Robot Structural Analysis Professional.

Abstract: This paper presents a comprehensive investigation into the thermal performance of microchannel heatsinks featuring varying geometries. The investigation was carried out utilizing computational fluid dynamics (CFD) simulations. Computational Fluid Dynamics (CFD) simulations have demonstrated potential as a viable method for prognosticating system performance. This study involved the modeling and analysis of three primary microchannel heatsink configurations, namely uniform, convergence, and divergence, utilizing ANSYS package v.22.1. The study examined the various parameters that affect microchannel heatsinks and evaluated their thermal performance. The investigated case involved laminar flow through microchannels of varying cross sections in a heat sink, where the Reynolds number is equal to 129. Steady state flow, incompressible fluid, neglecting radiation and natural convection, constant characteristics, and negligible viscous dissipation were assumed in the study. The results emphasize the significance of microchannel geometry and flow configurations in augmenting heat dissipation. The results were subjected to numerical validation, which demonstrated a high level of concurrence with prior research. The reliability of the numerical model was validated, thereby substantiating its suitability for utilization in simulations. The convergence microchannel, specifically in Case no.2, and the divergence microchannel, specifically in Case no.7, exhibited optimal performance. In the second case, there was a notable average improvement rate of 35%, which suggests that the heat dissipation capabilities were superior. Cases 3 through 11 demonstrated favorable outcomes, with improvement rates varying from 2.7% to 30%. Conversely, Cases 12 and 13 exhibited less satisfactory results. In conclusion, this research highlights the importance of microchannel heatsinks in effectively addressing thermal issues in electronic systems. The utilization of convergence and divergence microchannel configurations, in conjunction with carefully selected geometric parameters, exhibits the potential for efficient heat dissipation.

Abstract: In this work, rectangular sheets of composite materials consisting of epoxy with a single layer of fiberglass were studied with the internal crack at angles (0°, 90°) with the x-axis in the presence of nanomaterial TiO₂ in proportions (1 wt%, 2 wt%, and 3 wt%), the study was experimental and numerical using the ANSYS. The sample mold was made from plastic using a CNC machine. One case was studied in both the experimental and numerical parts, which is clamped-clamped-free-free (CC-FF). After conducting the test, it was found that the crack negatively affects the rectangular composite plate, as it reduces the value of the natural frequency and increases the value of damping. However, in the case of adding the nanomaterial, it was found that the natural frequency increases with the increase in the percentage of nanomaterials, and the maximum value of the natural frequency was at 3% because it works to increase hardness rectangular plate stiffens and reduces damping. The error rate between the experimental and numerical parts did not exceed (9.717%).

Abstract: The research investigates the application of static structural finite element analyses in studying spiral bevel teeth gear of Polski fiat with four tooth angles at 25, 30, 35, 40 degrees. The researchers simulated 16 times using Ansys, investigating all the load cases. These included elements such as deformations, normal stress, equivalent stress at the tooth contacts. Findings provide guidance on gear updating and improvement in gearbox gearing response, which enhance subsequent generation mechanical systems.

Abstract: Beam-column joint is the most vulnerable location of a moment-resisting reinforced concrete frame structure. The joint region experiences the maximum shear stress both in vertically and horizontally which is generated due to the shear transfer mechanism from the adjoining beams and columns. The shear capacity and bond stress capacity are the two major factors affecting the strength of a joint core in RC structure. An important discovery recently is the ductile behaviour of the whole structure under repeated loading. The behaviour of the concrete beyond elastic limit which is in the concrete hardening zone can drastically influence the ductility of the concrete. The non-linear stress-strain behaviour after the onset of the initial crack and up to ultimate compressive strength plays an important role in improving ductility. Beyond the ultimate compressive strength, concrete will undergo softening which is neglected in this study as once concrete reaches ultimate stress it is unsafe for service. This material ductility can be fulfilled with the application of high-strength fibres with ductile behaviour. However, the hybridization of two or more fibres can incorporate two different characteristics of the fibre used. The use of ordinary-grade of concrete moreover reduces the shear-resisting capacity of the joint. A hybrid mix of hooked-end steel fibre with basalt fibre and crimpled steel fibre with polypropylene fibre are used with a volume fraction of 1% to 1.4% of the concrete. In this study, ordinary M25 grade concrete and fibre mixed M25 grade concrete is employed under static and cyclic loading. The laboratory tests are also conducted to evaluate the compressive strength, split-tensile strength, and flexural strength of the hybrid mix fibre-reinforced concrete at the age of 28^th days. Five full-scale models of the beam-column joint are designed as per the Bureau of Indian Standards. Numerical models of concrete and steel reinforcement are developed. Numerical analysis is carried out using finite element software ANSYS-v21. The behaviours of the beam-column joint are observed under static as well as cyclic loading. Crack patterns, first crack load, initial displacement, ultimate load, and ultimate displacement are observed under static conditions. And under cyclic loading, hysteresis load vs displacement, energy dissipation, and stiffness degradation are observed. The hybridization of hooked steel with basalt fibre gives better results in mechanical strengths and the hybrid effect of crimpled steel with polypropylene fibre gives better results in mechanical strengths. And also under numerical study, the above specimens show an improvement in energy dissipation capacity. Keywords beam-column joint, hybrid fibre reinforced concrete, numerical concrete model, ANSYS, static, reverse cyclic, energy dissipation, stiffness, crack