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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- Environmental impact of conventional manufacturing and additive manufacturing in lifecycle of turbine blade(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2018-05-16) Torres Carrillo, Sharon Andrea; Rodríguez González, Ciro Ángel; Siller Carrillo, Héctor Rafael; Vila Pastor, Carlos; Vega, YadiraThe exponential growth of additive manufacturing technologies is not only improving production processes to achieve functional requirements for products, but it could also help to minimize environmental impacts. In order to align a green product lifecycle management vision, companies need to implement emerging technologies and define a set of metrics that measure the benefits of the change. Each product requires a particular and optimized manufacturing process plan, and each production phase must achieve a significant reduction of critical metrics for the whole Life Cycle Assessment (LCA). This study provides a comprehensive and comparative LCA of two manufacturing process plans for the case study of an aircraft engine turbine blade. The first process consists of a combination of Investment Casting and Precision Machining and the second consists in the replacement of Investment casting by Selective Laser Melting as an emergent process for near net shape fabrication. The collected data for the comparison includes Global Warming Potential (GWP), Acidification Potential (AP), Ozone layer Depletion Potential (ODP), Human Toxicity Potential (HTP), Ecotoxicity and Abiotic Depletion Potential (ADP).
- Road load data acquisition system with SAE-J1939 communications network: integration and laboratory test(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2018-05-14) Orellana Cruz, Oscar; Rodríguez González, Ciro Ángel; Siller Carrillo, Héctor Rafael; Martínez Romero, Oscar; Guedea Elizalde, FedericoThis thesis discloses the results of a reliability analysis (R&R Study) through comparative method to validate a data acquisition (DAQ) system developed and built as a prototype. The laboratory conditions were established in order to test and validate the prototype when it acquires signals from accelerometers and strain gages as well as parameters taken from the electronic control unit (ECU), in this case a truck. The prototype equipment is composed of 9030 Compact RIO system with NI 9862 module for Controller Area Network (CAN) SAE J1939 and NI 9206 for analog inputs. 800 Hz sampling rate is programmed with LabVIEW code to acquire, store and analyze information. For the truck parameters, the code developed by Armando Ramírez in his research [6] was replicated and integrated into the code developed for the acquisition of signals with a user-friendly and versatile interface. The parameters are accelerator pedal position, engine speed, engine coolant temperature and wheel-based vehicle speed, with these parameters is possible to analyze the driving mode during the road tests. Instrumentation for acceleration was developed on a shaker to acquire the data, the frequency and wave amplitude were controlled by the use of a signal generator and signal amplifier. The reference data is acquired by a Brüel & Kjaer (B&K) module model 3160-A pattern equipment with PULSE Time Data Recorder software. Instrumentation for strain measurements was developed by simulating the strain gage measurement using a variable precision resistor. The reference data is acquired by a B & K module model 3160-A pattern equipment with PULSE Time Data Recorder software and two multimeters: OTC 55 series and MUL-280. The analysis range for these measurements is 0 to 80 Hz. The selected equipment demonstrated the DAQ system capability to perform vibration and deformation measurements with a resolution of 0.1 g and 100 μɛ respectively in the frequency range from 0 to 80 Hz, as well as obtain parameters from CAN J1939 protocol at the same time.
- Feedback scheme based on fuzzy control at nanometer scale(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2010-05-01) Escamilla Colli, Diego Vidal; Vidal Escamilla Collí, Diego; 336082; Siller Carrillo, Héctor Rafael; Cortés Martínez, Rodolfo; Guedea Elizalde, Federico; Palomera Palacios, Francisco; Coello Cárdenas, Víctor; Tecnológico de Monterrey, Campus MonterreyFuzzy control is a practical alternative for a variety of challenging control applications, since it provides a convenient method for constructing nonlinear controllers via the use of heuristicinformation. In this work, it is proposed a control system based on fuzzy logicto control the tip-sample distance in a scanning near field optical microscope (SNOM) using fuzzy control. The fuzzy controller design assumes only one input signal defined as the difference of the sampled signal (tuning fork-tip) and the reference signal, which are compared through designedsoftware. This signal is used as the rule-base of the fuzzy logic controller. It wasusedLabView 8.2 to develop the set of rules on how to control the process. A basic data acquisition is used as interface to manipulate the fuzzy controller as feedback scheme in the positioning system (piezoelectric bimorph) for the shear force control. The approach curve of the shear-force measurement of the piezoelectric bimorph was obtained using this scheme. In conclusion, this approach can be viewed as simple and reliable as feedback scheme based on fuzzy control for shear force control in a SNOM. However, in many cases, the fuzzy control can be used to improve existing traditional controller systems by adding an extra layer of intelligence to the current control method.
- Evaluation of micro-mechanical manufacturing processes for micro-fluidic devices(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2008-12-01) Jáuregui Santiago, Ana Laura; Siller Carrillo, Héctor Rafael; Rodríguez González, Ciro Ángel; Acevedo Mascarua, Joaquin; Elías Zúñiga, Alex; Tecnológico de Monterrey, Campus Monterrey; Programa de Graduados en Ingeniería; División de Ingeniería y Arquitectura; Campus MonterreyThe aim of this thesis is focused on the evaluation of different micro-mechanical technologies such as: Wire Electro-Discharge Machining/Sandblasting, Abrasive Water Jet and Micro-End Milling, for the fabrication of micro-fluidic devices, whose main components are miniaturized geometries known as micro-channels. In addition, Lithography even is not considered as a mechanical process is also evaluated against the other processes because is commonly used for the fabrication of small features. The micro-fluidic devices find their field of application in areas such as Medicine or Biotechnology, in which they are useful for dosifying drugs to the human body, analyze DNA or for cultivating cells. The materials that are used for the prototyping in each technology are: PDMS (Polydimethylsiloxane) for Lithography, cooper for H/ED/W/sandblasting, aluminum for Abrasive Water Jet and acrylic for Micro-End Milling. The evaluation consists in a comprehensive study of surface quality and topography, made with the help of advanced contact and non-contact devices over each prototype manufactured. Also economical considerations have been taken into account in order to choose the most appropriate manufacturing process for the prototyping of micro-fluidic devices.