This study presents an analysis and design im-provement of the hub pin lock structure in a 2 MW wind turbine, addressing a critical malfunction caused by prolonged exposure to extreme wind conditions over 15 years of operation. The redesign focuses on enhancing the durability and reliability of the pin sup-port base, using 3D modeling, structural strength anal-ysis, and fatigue analysis based on Miner’s rule. The redesigned pin lock was evaluated for its ability to withstand cyclic loading condi...

This study investigated the interaction of flow fields between two adjacent petrochemical heaters under the action of strong wind. The effect of flow field interaction on the force and stress distribution are analyzed for four relative positions of the two heaters. The analysis results reveal that the relative position of the heaters has a significant influence on the stress distribution. When the relative position of the two heaters changes, the pressure and vortex distribution through the heat...

High-speed robotic operations often generate significant vibrations and trajectory deviations, compromising precision and efficiency in industrial automation. This study proposes an advanced motion control strategy integrating B-Spline trajectory planning with the L-BFGS-B optimization algorithm and systematic tuning of CNT and Override parameters. Experimental validation involved a six-axis robotic arm executing a standard 90-degree corner path and a complex multi-turn trajectory. Results indic...

This study focuses on the vibrational characteristics and fault detection in spur gear transmission systems, introducing a novel mathematical approach for damage identification. The method, based on definite integrals, calculates the area under the curve (AUC) of vibration signals for accurate detection gear damage. By comparing AUCs for normal, 2mm tooth-cut, fully tooth-cut gears, and cracked gears, the technique consistently identifies structural damage. Finite element analysis and acoustic i...

The current electronic differential control strategy based on the Ackermann steering model only constrains the speed of the driving wheels and does not consider dynamic performance. This paper is based on wheel hub electric vehicles and focuses on the turning driving conditions of the vehicle. From the perspective of improving the stability of the vehicle's steering control, innovative electronic differential control methods based on sliding mode control and fuzzy control are designed. Taking th...

In this study, a special hook for hatch opening cranes, which provide the opening and closing of the hatches in the hold areas of ships, has been designed. The static analysis of the modelled special crane hook was carried out using the Finite Element Method (FEM) to determine the negative effects on the hook under static loading conditions. High strength Weldox700 steel was used for the hook material. To improve the mechanical properties of the hook, Conventional Heat Treatment (CHT), complemen...

The present work focuses on the development of the aluminum composite with the addition of alumina (Al2O3) and industrial waste i.e. Limestone Slurry Particulate (LSP) in AA6082. The LSP is considered industrial waste and is available in abundance. The particle size used in the current work varies from 10µm to 60µm with an average size of42 µm. The tribological characteristics were investigated for all the developed composites at different input parameters (like load, sliding distance and slidin...

This study numerically investigates how machining inlet angles affect the pressure drop and hydrodynamic entrance length in microchannels. Two-dimensional CFD simulations were performed under steady conditions with Reynolds (Re) numbers ranging from 1-100 and Knudsen (Kn) numbers of 0.001, 0.01, and 0.1 within the slip flow regime. Air was used as the working fluid, and the Navier‒Stokes equations were solved with Maxwell slip boundary conditions. The results show that at constant inlet machinin...

This study employs computational methods to investigate the early onset of natural convection in a square cavity, focusing on the dynamics at low Rayleigh numbers using the open-source OpenFOAM software. Through detailed analysis of streamlines and Nusselt numbers, the research identifies a gradual initiation of flow, characterised by evolving patterns and complex dynamics. The study examines the influence of the Rayleigh number (Ra) on flow behaviour, revealing that the time required for pertur...

This study focuses on the finite element analysis of the residual mechanical properties of 316 EN 1.4401 cold-worked austenitic stainless steel reinforc¬ing bars, compared to experimental results. The study assessed the influence of user-defined material proper¬ties on an isotropic elasticity model and a multilinear isotropic hardening model, evaluated under different conditions to validate against experimental observa¬tions. This study demonstrated a strong correlation be¬tween experimental res...