Recent research:
The consolidated work integrates practical design optimization and safety-driven engineering analyses across workshop environments and built structures. The first study advances occupational safety in welding settings by redesigning a central fume extraction hood. Using CFD simulations and Taguchi experimental design, the work identifies an optimized hood geometry (hopper angle, suction area, and slot count) that increases extraction velocity from 0.006 m/s to 0.78 m/s, meeting recommended standards (0.5–1.0 m/s) and reducing exposure to welding fumes. The second study demonstrates space-efficient workshop furniture design, employing CAD modeling and finite element analysis to validate a folding table under distributed loading. A robust mesh (390,558 elements; 497,625 nodes) yields a stress of 209.36 MPa and a safety factor of 1.84 for ASTM A36 steel, with kinematic simulation confirming motion range and feasibility of the prototype. The third work investigates a rainwater storage support structure using CAD/CAE and numerical analysis to ensure structural integrity for a 500 L storage system. The model uses a 50 mm square steel frame, yielding a Von Mises stress of 189.5 MPa below yield, a maximum deformation of 0.83 mm, and a safety factor of 1.746, validating design viability. Collectively, the research emphasizes standards-based validation, practical application of computational tools (CFD, FEM, CAD/CAE), and measurement best practices to enhance safety, efficiency, and sustainability in engineering systems.