The CFD is very much useful, and it is an appropriate tool for the flows type of problems. Whenever the object dynamic analysis to be carried out there involves the computation of the flow properties and analysis based on the movement and object orientation. The configuration of the F1 vehicle wings is done using ANSYS software. Using the ANSYS software the modeling and analysis of computational fluid dynamics is performed. As it’s a known thing that F1 cars have the high speed to move on the roads. Hence thedrag and lift forces are emphasized for understanding. The wings inF1are an important element presentin the F1 cars for its movement inthe proper direction. Analysis of the rear wing gives a complete picture of key parameters and areas to be focused and they are to be understood with respect to the betterment of the performance.

Due to the increase in the use of Steel Framing systems on buildings in Brazil, as well as the lack of studies on the behavior of some of its elements under dead and live forces, this work was formulated to find the relation between numerical and experimental models, and defining relations between them for a better understanding of these systems in service. For this purpose, experimental tests were conducted on light steel frame (LSF) beam trusses used on decks and combined dead and live loads pre-established in standards. The experimental system was developed, consisting of three Light Steel Frame trusses, an OSB board, and a water tank. Seeking the correct load distribution, the water tank was filled, and the water level was controlled; in addition, the volume water flow rate was also measured with a flowmeter. Thus, only the central truss had its deformation results measured using digital comparators. Moreover, alongside the experimental analysis, numeric models of beams and shells were held on Finite Element Method (FEM), operated on the commercial software ANSYS Workbench. The deemed models were of three-dimensional shell geometry and two-dimensional beam geometry with and without eccentricity. Furthermore, the results were evaluated after the analysis, providing recommendations for modeling Light Steel Frame deck trusses. In conclusion, the geometric model, recommended for modulation and simulation, is the bi-dimensional beam model showing the eccentricity of web ligations. Additionally, this model has accurate results and is similar to the actual behavior of the trusses studied.

Computer modeling has a strong potential to replace or supplement physical fire testing of building structures. A prepared and applicable model must be simple to prepare, capable of calculating and processing results in the shortest possible time without the need for complex computing technology, thus saving time, resources, and finances and becoming a profitable alternative. The aim of this article is to design a model that would suitably represent a non-standard fire test using the Ansys software package 2025/R2. The model was created by combining the Ansys Discovery, Ansys Mechanical and Ansys Fluent software, connected using Ansys Workbench. Several calculation settings were tested, including the proposed finite mesh. The results showed the suitability of the proposed procedure and the division of calculations in separate software. The Species Transport and Viscous Shear Stress Transport (SST) k-omega model best represented fluid flow in Ansys Fluent. Ansys Mechanical confirmed the accuracy of the model in Ansys Fluent, when the predicted temperatures matched the real medium-scale fire test with an average coefficient of determination R2 = 0.93.

Ship longitudinal strength analysis is critical for ensuring structural integrity and safety throughout the vessel's operational life. This study presents a comprehensive finite element analysis (FEA) of the MST-3 vessel's longitudinal strength using ANSYS software, focusing on hull girder behaviour under extreme loading conditions. The research employed advanced computational methods to evaluate structural response under sagging and hogging conditions, incorporating material nonlinearity, initial imperfections, and residual stresses from welding processes. The MST-3 vessel, with principal dimensions of 185.0m LOA, 28.5m beam, and 15.2m depth, was modelled using 68,530 finite elements (SHELL181 and BEAM188) with 72,840 nodes. The analysis incorporated AH36 steel material properties with yield strength of 355 MPa and considered initial deflections following elastic buckling modes. Boundary conditions were applied using multi-point constraints (MPC) at the model extremities to simulate simply supported conditions. Results demonstrate that the vessel meets all classification rule requirements with significant safety margins. The ultimate bending moment capacity reached 1,245,680 kN⋅m under sagging conditions and 1,187,420 kN⋅m under hogging conditions, exceeding design requirements by 39.1%. Maximum von Mises stress of 284.7 MPa occurred at hatch corner connections, representing 80.2% of yield strength. Critical stress concentrations were identified at deck-side shell junctions (267.3 MPa), engine room bulkheads (245.8 MPa), and cargo hold corners (231.5 MPa). The progressive collapse analysis revealed ductile failure behaviour with adequate post-ultimate strength reserves. Buckling analysis showed minimum safety factors of 1.85 for all structural components, with longitudinal girders exhibiting the lowest buckling margins. The finite element methodology demonstrated excellent correlation with analytical beam theory solutions, validating the computational approach with maximum differences below 1%. Key findings indicate that while the vessel structure is adequate, hatch corner reinforcement is recommended to address stress concentrations. The study concludes that modern finite element techniques provide reliable tools for ship structural assessment when properly validated. The developed methodology offers practical engineering solutions for longitudinal strength evaluation and optimization of marine structures.

Composite structures have shown a great impact on aircraft structural design. The increasing shift towards using more composite materials in the structural design of aircraft necessitates simplification of the design procedure using design tools. This research aims to analyze the stress concentration and deformation of the composite wing skin at cruise to enhance the performance, durability and safety of a light trainer aircraft. A wing model is designed in CATIA and finite element analysis is done in ANSYS. Aerodynamic loading is applied on the wing, excluding the fuselage, whereby the wing still acts as a cantilever beam connected to the fuselage. Since the cruise condition is being considered, a uniformly distributed pressure of 0.000642.43 MPa acts on the lower surface of the wing skin. The study presents simulation results of the effect of aerodynamic loads experienced by ALTA wing skin in flight, whereby loads were applied on the bottom surface. Computational techniques, such as ANSYS software, were used to analyze the load effect on various composite aircraft wing skins, indicating stress and strain deformation results when aerodynamic loads were applied. Comparing the maximum equivalent stresses of Epoxy Carbon fibre (395) Prepreg, which has a higher value of 1.055 MPa, with Epoxy E-Glass UD, which is 1.0393 MPa, indicates that Epoxy Carbon fibre (395) Prepreg composites typically exhibit higher strength and stiffness compared to Epoxy E-Glass UD. While Epoxy E-Glass UD offers better flexibility and impact resistance, shown in its maximum deformation of 1.6885mm. It is more than that of Epoxy carbon fibre (395) Prepreg, which has a value of 0.393mm. This shows the significance of each material type when used for wing design.

Abstract Helicopter rotor icing is a serious threat to flight safety, especially in extreme weather conditions. Ice accumulation will change aerodynamic shape, increase weight, cause vibration, and even structural damage. In this study, the composite anti-icing technology of graphene material combined with electrically heated conductive superhydrophobic coating was used, and ANSYS software was used to simulate the rotor icing time, ice layer adhesion strength, and comparison of the deicing efficiency and energy consumption of graphene coating with a traditional anti-icing system to verify the superiority of graphene coating performance. The results show that this technology can significantly improve the mission execution capabilities of helicopters in severe cold environments while reducing life cycle costs.

A low-cost conducted common-mode (CM) electromagnetic interference (EMI) noise suppression method without an input EMI filter is proposed in this article. To analyze the conducted CM EMI characteristics, considering the topology characteristics, the impedance network fitting of key components, and high-frequency parasitic parameter extraction, the conducted CM EMI model of the matrix converter is built. Then, an internal low-attenuation loop is generated by combining the bypass neutral line configuration with the increase of midpoint-to-ground parasitic capacitance of the output filter capacitor, which can suppress CM EMI noise of the matrix converter by reducing the transmission proportion of CM EMI noise in the line impedance stabilization network measuring branch. In addition, CM noise suppression performance can be enhanced with the combination of the proposed method and the input EMI filter. Finally, the validity of the proposed solutions is verified by simulated results from Ansys software and experimental results from a 2-kW laboratory prototype.

Enhance the performance of the thermal barrier coated diesel engine with application of novelly extracted and optimization of aquatic plant-based biofuel blend

This study aims to establish a foundation for developing a ventilation system to address potential hydrogen leakages in underground equipment. The dimensions of this space are 4.2 × 2.2 × 2.2 m3. It features main and auxiliary inflow vents and fan outflow vents. Using the commercial software ANSYS Fluent, a three-dimensional transient RANS is performed to analyze hydrogen diffusion phenomena during a leakage using mass, momentum, and species-conservation equations. The study obtains numerical analysis results by varying the number of fans, open/closed state of the main inflow vent, leakage nozzle diameter, and leakage flow rate. In addition, the study examines the spatial distribution of hydrogen concentration within the room and its temporal variations at various points. The ventilation performances for different scenarios are compared and an effective ventilation method is discussed. Additionally, this study proposes the simple model to predict the volume-averaged hydrogen concentration over time and evaluates it by comparing with numerical results. The simple model effectively predicts the trend of the volume-averaged hydrogen concentration, and reasonably predicts the time at which the volume-averaged hydrogen concentration attains 1 and 4 vol%.

In many Eastern cultures (like India), floor sitting, particularly in postural instances like Indian cross-legged position (locally known as pālathī), has been deeply rooted in daily life. However, as global lifestyles evolve and the influence of Western furniture design spreads, there has been an increasing shift towards the use of chairs. This transition has created a unique challenge in designing seating that accommodates both traditional floor-based postures and modern chair-based postures. However, current seating options generally cater to either elevated sitting or ground-based activities but rarely offer a solution that seamlessly integrates both. This gap is particularly evident in environments such as design classrooms, where versatile seating is crucial. This study reinforces the discussed gap by investigating the literature, market, patents, and through an observational study among design classrooms. Further, A novel chair design is conceptualized for the design students in the Indian context which facilitates conventional sitting as well as Indian cross-legged sitting postures, while allowing multiple seating options like- stool, floor seating, elevated seating along with features like- storage and carry on. The proposed chair is also analyzed using Ansys software for structural robustness under various load tests. Thus, the new design with several benefits and advantages, holds immense potential for introduction in the design classrooms and studios. The solution is also scalable to offices which are now encouraging employee-centric seating preferences; and within household contexts with remote work culture on the rise.

For weapons designed and manufactured in Vietnam, surveying the loads on the barrel and other gun components during firing is essential. The 14.5mm gun is no exception; a thorough investigation of the barrel stress under pressure during firing is necessary. This paper utilizes the specialized software ANSYS WORKBENCHES to investigate barrel stress under propellant pressure. The results are used to assess barrel strength. Further more, the research findings serve as a reference for students and technical staff interested in this topic.

As high-speed railways (HSR) operate at increasing speeds, coupled vibration responses can significantly affect bridge structural health and passenger comfort. However, detailed numerical studies on the vibration characteristics of components during train operation remain limited. To address this, a super-long-span steel truss bridge over the Yellow River in China was selected as modelling object. Using ANSYS software, temperature-induced deformations of the CRTS I-type dual-block ballastless track were analysed. Results indicate that with a vibration-damping pad (VDP) stiffness of 50 MN/m³, the maximum longitudinal and lateral displacements of the rail were 0.697 and 0.342 mm, respectively. The train-track-bridge (TTB) system model was refined to include rails, track slabs, VDP, base plates, and bridge decks. Vibration responses were evaluated under varying operational conditions, including train speeds (200–400 km/h), VDP stiffness (10–300 MN/m³), and rail fastener pad (RFP) (30–190 MN/m), across 585 scenarios. The validated model accurately captured vibration behaviour, offering effective recommendations for vibration mitigation in ballastless track systems on long-span bridges. Additionally, multi-factor damping mechanisms were explored to reduce coupled vibrations, providing insights to enhance ride comfort and structural safety for high-speed railways.

Tubular members in truss structures allow for spanning large distances with reduced self-weight. To facilitate manufacturing, transportation, and assembly, these members are subdivided and therefore require connections to join the segments. One example is the sleeve connection, which uses through bolts and eliminates the need for welded or flanged joints, making assembly quicker and more practical. The present study aimed to conduct a theoretical and numerical analysis of the influence of the edge-to-hole distance in sleeve connections with aligned bolts, applied to thin-walled square hollow sections. For this purpose, a numerical analysis was carried out using the finite element method through ANSYS software, with variations in edge-to-hole distance of 2, 2.5, 2.7, 3, and 3.5 times the bolt diameter, as well as variations in the number of bolts between 2 and 3. From this study, the possible failure modes of the connection were identified, with the dominant failure mode being the bearing failure of the bolt holes, also observed in the theoretical evaluation, occurring in the outer tubes. Furthermore, variations in the edge-to-hole distance and the number of bolts did not change this failure mode.

The structural integrity of isolation dams in deep coal mines is critical to preventing underground disasters, particularly those involving water and waste-mixture inrushes. This study presents a forensic root-cause analysis, using reverse-engineering techniques, of a specific isolation-dam rupture to determine the failure mechanism under complex stress conditions and limited data availability. A hybrid investigative methodology was employed, combining sequential post-failure documentation analysis with physical-scale modelling and numerical simulations to reconstruct a deadly disaster for criminal investigation purposes. A 1:5 scale physical model of the excavation and dam was constructed using original construction materials to test the structure’s resistance to hydrostatic pressure. The experimental results demonstrated that the dam maintained integrity under static hydraulic loads representative of real-world conditions, with only minor seepage (“sweating”) and no structural failure over a 7-day monitoring period. To investigate external geomechanical factors, Finite Element Method (FEM) simulations were conducted using ANSYS software. The numerical analysis evaluated the effects of rock mass pressure and convergence on the dam’s stability. The results indicate that while the dam was designed to withstand significant hydraulic head, the failure was precipitated by excessive rock mass pressure at a depth of around 600 m, which induced critical stress concentrations exceeding the masonry’s load-bearing capacity. This study confirms that the dynamic rupture was driven by unforeseen geomechanical forces rather than hydrostatic overload alone, highlighting the necessity of considering rock mass–structure interaction in the safety assessment of underground isolation barriers. This approach enables mutual verification of the results obtained and reduces the ambiguity of interpretation that often accompanies the analysis of accident events in underground mining. It also confirms the application of tested methodology for mining disaster reconstruction as proof at the stage of investigation and in the Court.

The optimal anchorage strategy for controlling anterior teeth en-masse retraction and persistent posterior teeth using clear aligner on extraction orthodontic treatment: An in vitro study of 3D element analysis.

The Formula SAE (FSAE) competition is an international student event that seeks to design a lightweight single-seater to maximize performance. In this context, the front steering knuckle represents a significant challenge, as its weight directly influences the vehicle's dynamic performance. However, previous studies have limitations regarding the combined use of topology optimization tools and the evaluation of new materials for this component. This research addresses this gap by topologically optimizing the front steering knuckle of an FSAE single-seater to reduce its weight while maintaining its structural strength. Initially, the stresses at the knuckle's support points were calculated, considering Formula SAE regulations and the vehicle's operational conditions (acceleration, braking, cornering, and overcoming obstacles). The knuckle was modeled in SolidWorks, and its structural parameters (stress, deformation, and factor of safety) were analyzed in ANSYS using lightweight and durable materials such as Aluminum 7075-T6 and Alumold, the latter being analyzed for the first time in this context. Finite element analysis was performed, and a suitable mesh was selected from six options. Subsequently, topology optimization was applied to remove unnecessary material using ANSYS and SolidWorks software, reducing the initial knuckle mass of 2.41 kg by 35% and 25%, respectively, while maintaining a minimum factor of safety of 1.5. This approach demonstrates the effectiveness of topology optimization in enhancing the structural design of automotive components.

Indonesia’s abundant renewable energy potential. has driven the nation to shift toward clean energy, including small-scale hydropower systems like picohydro. With capacities under 5 kW, picohydro systems are ideal for remote areas due to their simplicity and low operational costs. Crossflow turbines are commonly used for their efficiency under low-head and fluctuating-flow conditions. This study compares turbine performance under three submergence conditions: unsubmerged, partially submerged, and fully submerged. Two methods were employed: analytical calculations (based on velocity triangles to determine speed, torque, and efficiency) and numerical simulations using CFD software ANSYS Fluent. The turbine geometry was modeled in Autodesk Inventor, with a focus on key performance parameters such as torque, power output, and efficiency. Results show that submergence level significantly affects turbine performance. The unsubmerged condition yielded the highest efficiency and power output, as the nozzle flow enters without downstream fluid resistance, allowing optimal energy transfer to the blades. In contrast, partial and full submergence introduced backpressure zones, air pockets, and vortices that increased drag and reduced net torque. Although absolute torque tended to rise due to greater fluid interaction, the RPM decreased, and energy losses increased, resulting in reduced overall power and efficiency.

Abstract The increasing demand for total hip arthroplasty, driven by osteoarthritis in the elderly and trauma in younger patients, necessitates implants with high biocompatibility and mechanical longevity. Current metallic implants (titanium, cobalt–chromium) often lead to stress shielding due to their high stiffness compared to human cortical bone, resulting in bone resorption and aseptic loosening. In this study, a porous hip joint structure design is proposed to enhance the load-bearing capacity of the hip joint and mitigate shielding stress after surgery. The hip joint model examined in this article features an improved design, including a hollow head, a porous stem with varying hollow structures and densities, and a stem surrounded by a bone block. The finite element method (based on ansys software) is used to analyze the biomechanical behavior of the artificial hip joint and the interaction between the joint and surrounding bone during the activities of young patients, including daily activities and dynamic movements such as climbing stairs and playing sports. The results presented in this article include stress and deformation distribution on the joint components and the bone. In addition, the sliding distance and contact pressure between the joint components, between the joint and the bone, were also investigated. Wearing mechanics of the liner's surfaces when in contact with the cup and head are also examined. From the results obtained, the study has proposed several hip joint designs that ensure sufficient durability and reduce joint laxity during patient activities.

Abstract Flywheels are devices that preserve and release kinetic energy, which makes them one of the newest energy storage technologies. They may produce large amounts of electricity at high rotational speeds. Increasing the capacity of compared to traditional battery-powered technologies, flywheels may provide high power during transfer times and endure longer. Three primary variables impact the flywheel’s performance: spinning speed, material strength and cross-sectional shape. The main objective of this study is to examine how flywheel geometry alters the energy storage and delivery capabilities per unit mass, also known as specific energy, even though the strength of the materials directly determines the kinetic energy level that can be safely generated when coupled with rotor speed. The current document would be talking about the design of Flywheel and types of analysis being performed on the Flywheel by using ANSYS software. Material which yields best results for the applied loads and forces acting on it.

Modeling and evaluation of the friction torque model for spherical plain bearings in single cycle oscillation