Ciencias Exactas y Ciencias de la Salud
Permanent URI for this collectionhttps://hdl.handle.net/11285/551039
Pertenecen a esta colección Tesis y Trabajos de grado de las Maestrías correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.
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- Methodology for reducing root and contact stresses in spur gears through ISO 6336 modeling, finite element validation, and response surface optimization(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2025-12-04) Mendoza Servín, Osvaldo; Jiménez Martínez, Moisés; mtyahinojosa, emipsanchez; Hernández Castillo, David; School of Engineering and Sciences; Campus Monterrey; Urbina Coronado, Pedro DanielThis work presents a methodology for reducing root and contact stresses in spur gears through the combined use of ISO 6336 analytical models, finite element validation, and response surface methodology (RSM). Six key geometric parameters—module, pressure angle, addendum, dedendum, root fillet radius, and profile-shift coefficient—were investigated to quantify their influence on the tooth stress distribution. A design of experiments (DoE) based on RSM was implemented in Minitab® to explore the design space and model the relationship between geometry and stress response. Gear geometries were generated in KISSsoft® and refined in SolidWorks®, while meshing and analysis were performed in HyperMesh®. Analytical stress predictions were validated against finite element results, showing strong agreement within ±5%. The response surfaces revealed that module, pressure angle, and fillet radius are dominant in reducing root stress, while pressure angle and profile shift mainly govern contact stress. Following the proposed optimization strategy, average stress reductions of 30% in root and 8% in contact were achieved. The methodology provides a systematic and computationally efficient framework for geometry optimization, enhancing gear durability and mitigating fatigue-driven failures in precision mechanical systems.
- Structural validation of a patient specific 3D printed prosthetic socket, using Finite Element Analysis(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2023-03-01) Elizondo Rueda, Adrian Rogelio; Rodríguez González, Ciro Ángel; puemcuervo, emimayorquin; Segura Ibarra, Víctor; Vázquez Lepe, Elisa Virginia; School of Engineering and Sciences; Campus Monterrey; Tejeda Alejandre, RaquelTranstibial amputations are unfortunate surgeries that leave patientes without a lower limb. Given patient-specific needs, tailored made prosthetic legs must accommodate to each patient. With the use of novel technonologies such as Computed Aided Design (CAD) and Computer Aided Engineering (CAE) we simulated the mechanical behavior of a prothetic socket made of polyamide 12, manufactured by powder bed fusion techonology. Following the ISO10328 guidelines, herein we evaluated the mechanical integrity this patient-specific prosthetic socket by Finite Element Analysis (FEA) under loading conditions for the two critical phases of the gait cycle, which are heel strike and toe off.