Ciencias Exactas y Ciencias de la Salud
Permanent URI for this collectionhttps://hdl.handle.net/11285/551014
Pertenecen a esta colección Tesis y Trabajos de grado de los Doctorados correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.
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- A methodology for modeling multiscale multiphysics nature that bridges basic science with sustainable manufacturing technologies using human and Artificial intelligence(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2024-05-22) Estrada Diaz, Jorge Alfredo; Elías Zúñiga, Alex; emimmayorquin; Martínez Romero, Oscar; Palacios Pineda, Luis Manuel; Ruiz Huerta, Leopoldo; Escuela de Ingeniería y Ciencias; Campus Monterrey; Olvera Trejo, DanielThis dissertation deals with the modeling of multiscale multiphysics phenomena. These complex processes involve the interaction between physical occurrences of different nature, at different time and space scales, turning its description, prediction and control into a daunting task. Being pivotal technologies for the manufacturing of advanced materials, this work revolves around the complex technologies of Selective Laser Melting (SLM), electrospray, Ultrasonic Micro-Injection Molding (UMIM) and smart materials, i.e. Magneto-Rheological Elastomers (MRE). Modeling efforts are taken into action through classical yet powerful methodologies such as dimensional analysis and cutting-edge approaches such as fractal analysis and artificial intelligence, i.e., Artificial Neural Networks (ANNs) and Multiobjective Evolutionary Algorithms (MOEAs), with promising results that reflect on their ability to capture the intricate interplay of process parameters and material properties in these convoluted phenomena. Offering complementary benefits (attaining of meaningful physical insights and efficient handling computational processing operation and pattern identification in data, respectively) both approaches should be jointly exploited for handling multiscale multiphysics phenomena.
- Curved-layered additive manufacturing and mechanical properties of non-planar metamaterials(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2023-12-04) Pérez Castillo, José Luis; Cuan Urquizo, Enrique; emimmayorquin; Perez Santiago, Rogelio; Olvera Silva, Oscar; Gomez Espinosa, Alfonso; Roman Flores, ArmandoThis work presents an study of mechanical properties of mechanical lattice structures printed via Fused Filament Fabrication and Curved Layered Fused Filament Fabrication, specially focused in the analysis of Curved Layered ones. Thre experiments where designed, in the first one is analyzed how the volume fraction and distribution of material affect the mechanical behavior of lattice structures. The second experiment analyses how four different design parameters in lattice structures modify the mechanical behavior of lattice structures. The last experiment analyzes how the partitioning of a lattice structure in different regions inside itself, but each region with a different design parameter, affects the mechanical properties of the structure. Chapter 1 describes the main objectives of this research, such an introductory description of basic content that is necessary to understand this work. Chapter 2 provides an overview of the current state of CLFFF manufacturing methods. In Chapter 3, we delve into the computational aspects of lattice design and fabrication. Chapter 4 outlines the mechanical setup and execution of the first experiment detailed in Section 1.5. Moving forward, Chapter 5 delves into the analysis of the second experiment, which investigates various parameters impacting the mechanical stiffness of lattice structures. Chapter 6 focuses on the process of generating structures with diverse patterns within different regions of a single structure, with the goal of achieving distinct mechanical properties within these regions. Lastly, in Chapter 7, we present the conclusions drawn from the data discussed in all three experiments.
- Implementation of advanced design and additive manufacturing techniques for the development of medically relevant devices(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2023-06-20) Olivas Alanis, Luis Héctor; OLIVAS ALANIS, LUIS HECTOR; 855190; Rodríguez González, Ciro Ángel; puemcuervo, emipsanchez; Vázquez Lepe, Elisa Virginia; García López, Erika; López Botello, Omar Eduardo; School of Engineering Science; Campus Monterrey; Dean, DavidThe application of Computer-aided Design (CAD), Engineering (CAE), and Manufacturing (CAM) has brought many benefits to a wide range of sectors. For the healthcare sector, it has enabled the development of complex and enhanced devices which offers promising solutions to current problems. The main applications can be seen in the planning, training, and designing stages. By conducting the design and validation stages in the digital world, prediction of the device manufacturing and performance can be accurately obtained, thus producing the optimized version with engineered properties. Furthermore, novel behavior, geometries, and materials can be achieved, which was not possible by conventional means. In this work, the application of the Design for Additive Manufacturing (DfAM) technique is highlighted for surgical training and planning, as well as load-bearing implant design. The development of smart laparoscopic surgery training devices is presented. The inclusion of force and motion sensors into custom-made 3D-printed parts fitted to common laparoscopic surgical tools enables the objective training and classification of users based on their performance quality. Furthermore, the use of force sensors in varying stiffness sensors is presented as a base for the application of biomimetic models which offer digital information about their elasticity, which could be translated to tissue properties. The second study case presents the different approached for the development of stiffness-matched devices. Novel more-elastic materials, engineered porosity, and planning of implant location can be employed to tailor the mechanical behavior of load-bearing devices. We present the effect of unit cell rotation for tailoring the mechanical properties of strut-based porosity. Also, the application of engineering porosity in addition to Nickel-Titanium alloys is studied as a promising case for stress-shielding effect reduction. Finally, it assessed the effect of changing the location of personalized fixation on the mechanical behavior of bone reconstruction before and after healing. Results show that these three factors play a crucial role in reducing the stress concentration on the implant, hence, enlarging its life-span.
- A safe and efficient path planning framework for conformal fused filament fabrication using a manipulator arm(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2022-12-02) Rodríguez Padilla, Ma. Consuelo; ROMAN FLORES, ARMANDO; 46077; Román Flores, Armando; puemcuervo, emipsanchez; Cuan Urquizo, Enrique; González Hernández, Hugo Gustavo; Ramírez Cedillo, Erick Guadalupe; School of Engineering and Sciences; Campus Monterrey; Vázquez Hurtado, CarlosAs opposed to flat or planar extrusion additive manufacturing, the benefits of multi-plane and curved fused deposition of material are conclusive; however, several issues need to be considered and solved when a robotic manipulator is used for the deposition of material. The path and motion planning for printing using robotics need considerations to guarantee adequate results. This work presents the projection of a printing trajectory on a tessellated surface and a Reinforcement Learning strategy that optimizes the angular displacement of joints. The validation of the strategy is presented under simulated conditions inserting different obstacles for a projected zigzag printing pattern on a curved surface. Results show that this approach can choose the optimal inverse kinematic solution to optimize the movement of the main joints of a robot with six degrees of freedom while avoiding different obstacles. The strategy was tested on several actual printings of complex patterns on different curved surfaces using a manipulator arm UR3. Even thought the applicability of lattice manufacturing suggested here, the framework developed and software implemented and validated may be used for any application where a very precise conformal trajectory needs to be followed using a manipulator arm or any multi-axis system saving programming time.
- An analysis of the technical challenges to produce a Digital Twin of FDM parts(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2022-08-05) Guajardo Treviño, Alan Mauricio; GUAJARDO TREVIÑO, ALAN MAURICIO; 886471; Ahuett Garza, Horacio; puemcuervo, emipsanchez; Urbina Coronado, Pedro Daniel; Carrillo Martínez, Luis Antonio; Román Flores, Armando; School of Engineering and Sciences; Campus Monterrey; Orta Castañon, Pedro AntonioA Digital Twin (DT) is a digital representation containing all relevant information of a physical entity with synchronization between the entity and its virtual representation. The Digital Twin is mainly used to monitor, control and predict a part or process. Many challenges exist in implementing Digital Twins in the Additive Manufacturing (AM) fabrication process. However, recent advancements in sensorization and simulation make DT more useful for AM processes and ease its adoption. While FDM parts are commonly used in non-load bearing functions, with the aid of DT, it is possible to improve the mechanical properties and geometrical accuracy of the parts, which can help expand their use in engineering applications. This work evaluates the challenges and benefits of creating a Digital Twin for FDM products and proposes a methodology for gathering the relevant information.