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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- Deformation control of sinusoidal lattice metamaterial for application in robotics(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2023-12-05) Mora Gutiérrez, Stephanie; Cuan Urquizo, Enrique; emipsanchez; Pérez Santiago, Rogelio; Román Flores, Armando; Escuela de Ingeniería y Ciencias; Campus MonterreyThis study presents a methodology for controlling deformation in a sinusoidal metamaterial using parametric design, FEM simulation, and 3D printing. The focus is on generating a design where the deformation of the metamaterial can be controlled and thus be able to apply it in a flexible gripper using a sinusoidal metamaterial as base material. The parametric design approach is employed to create a structure of the sinusoidal unit cell, and FEM simulation is used to evaluate its mechanical behavior and compare it with the Experimental testing. The sinusoidal metamaterial is then 3D printed using a flexible TPU filament. Experimental testing also demonstrates the gripper's adaptability and deformation control. The results validate the effectiveness of the design, showing the deformation control of the sinusoidal structure, also improved grip capacity and manipulation capabilities. This study has significant potential for applications in robotics. The combination of generative design, FEM simulation, and 3D printing enables the creation of customized and functional grippers that can adapt to various object shapes and sizes.
- Novel Bézier-based metamaterials: synthesis, mechanics and additive manufacturing(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2021-06-04) Álvarez Trejo, Alberto; CUAN URQUIZO, ENRIQUE; 345654; Cuan Urquizo, Enrique; emipsanchez; Alvarado Orozco, Juan Manuel; Farfán Cabrera, Leonardo Israel; Olvera Silva, Oscar; Escuela de Ingeniería y Ciencias; Campus Monterrey; Román Flores, ArmandoThe design of mechanical metamaterials often uses lattice arrangements being benefited from the increase in Additive Manufacturing technologies available. Such design freedom allows the fabrication of lattice arrangements with complex curved geometries. Here we propose a whole family of novel lattice matematerials parametrized using cubic Bézier curves. The methodology presented permits the generation of unit cells with different degrees of curvature based on the location of the Bézier control points along a spiral. The apparent stiffness of these structures was characterized using finite element analysis (FEA) and compression tests on additively manufactured samples using stereolithography (SLA). The mechanical properties of spiral based cubic Bézier (SBCB) metamaterials were related to the location of the control points. The methodology was expanded to generate metamaterials with porosity in the three orthogonal planes, and the apparent stiffness of these structures was obtained by FEA. The procedure presented for the synthesis of metamaterials enables the generation of structures with customized mechanical properties by adjusting the geometry of the unit cells. The apparent stiffness of both 2D and 3D SBCB metamaterials from simulation was compared to existing metamaterials,defining a design region that is limited by manufacturing and geometry conditions.