This master thesis deals with the study of active noise and sound quality control systems in automotive applications, and the innovative assessment of their performance based on relevant psychoacoustic metrics in this area such as Loudness, Roughness and Tonality. A methodology for designing and implementing active control systems based on psychoacoustic metrics is established. The main challenges reside in defining the set of time-frequency attributes of the disturbance, responsible for the undesirable auditory stimuli. Computer algorithms are used extensively for simulating and analysing the disturbance, which is a synthesized internal combustion engine noise, integrating both the control system design and psychoacoustics areas. An adaptive active sound quality control algorithm is proposed to resolve the amplitude and/or relative phase interactions among the narrowband components of the multi-harmonic disturbance. Eventually, the numerical results are correlated with real experiments, allowing not only a critical analysis of the psychoacoustic performance of the controllers, but also of the proposed design methodology, which is accomplished with the aid of a vehicle's mock-up, subject to disturbances of relevant psychoacoustic characteristics to the proposed problem.
Título: El principio de legalidad en materia penal en Colombia y su proceso de transformación. Tensiones entre la ley positiva y los criterios de seguridad jurídica, justicia material y legitimidad
ResumenEn esta tesis se propone un modelo ampliado del Diseño Axiomático para diseño de productos con equipos multidisciplinares. El Diseño Axiomático fue escogido después de hacer un análisis comparativo entre las teorías clásicas del diseño tomando como referencia el modelo de proyecto de Gómez-Senent. El Diseño Axiomático es una teoría basada en la interacción de dominios a diferencia de otras teorías las cuales son basadas en fases. Existen cuatro dominios denidos: el del cliente, el funcional, el físi-co y el de proceso. Algunas de las dicultades de la teoría del Diseño Axiomático son: la orientación exclusivamente funcional y la ausencia de equipos multidisciplinares durante todo el proceso de diseño.Esta tesis propone un proceso de trabajo multidisciplinar con el Diseño Axiomático, incluyendo requerimientos subjetivos de producto como elementos de diseño intencional y utiliza una métrica del nivel de cumplimiento para el segundo axioma que está asociado con el contenido de información.La tesis plantea inicialmente un modelo de colaboración entre la Universidad, el Estado, el Usuario y la Empresa: tanto la consolidada como la pequeña de base tecnológica. El punto de convergencia, en el diseño de producto para los actores, es la Necesidad Social asociada con el usuario. Este punto de encuentro permite una amplia perspectiva de análisis diferente a la tradicional del mercado. En el modelo propuesto de diseño de producto se involucran en forma sinérgica el Diseño Axiomático, la Teoría de Soluciones Inventivas TRIZ, la lógica fuzzy y la técnica de análisis multicriterio AHP. También, se provee un análisis del desempeño de equipos multidisciplinares en la fase creativa del diseño y se sugiere algunas características de composición de este tipo de equipos de diseño. AbstractAn expanded model of Axiomatic Design for product design with multidisciplinary teams is proposed in this Thesis. The Axiomatic Design was chosen after doing a comparative analysis between classical theories using as reference the multidimensional Gómez-Senent project model. Axiomatic Design is a theory based in domain interactions unlike the other theories which are phases based. There are four domains dened: Customer, functional, physical and process. Some diculties in Axiomatic Design theory are: the functional orientation and the absence of multidisciplinary teams during the whole process of design.This Thesis proposes a multidisciplinary work process with Axiomatic Design, including subjective requirements of product as intentional design elements and uses a metric of level of compliance for the second axiom which is about information content.This thesis initially presents a model of collaboration between the University, the State, the User and the Enterprise: the consolidate one and the small technology-based one. The point of convergence in product design for the actors is the Social Need associated with the user. This convergence point allows a broad product perspective, dierent from the traditional analysis of market. In the proposed...
Many people in varuous countries have contributed to make this thesis possible. Juanma, thank you very much. You always believed in and supported me. Even when this thesis changed from a professional to a personal relationship. You were always there. Carlos P., thank you for supporting me over the last 10 years. A Masters' thesis and this PhD thesis have meant long hours working together and you were always available. You understood and tolerated the difficulties of balancing a thesis with working life. Thanks to the IBV for allowing me to continue this thesis even though our paths were separated. I want to especially thank Carlos G. and Alberto F. You gave me professional advice and opportunities that have influenced what I am today. Thanks a lot. Jean Marc, your support at the end of this story was key to not give up. For the motivation and unconditional support... Merci beaucoup. To my family. Lorene, thank you for giving up so much for me and for believing in me. I hope I have enough life to pay you back. To my parents, thank you for their support and prayers to help me every day. To my "gueña", you believed in my dreams even before I told you. .... And to all the people who in one way or another have helped me to develop this thesis and my professional career.
This thesis has been funded by the São Paulo Research Foundation, FAPESP -Brazil, under grants 2012/15783-8 and 2014/09894-7, for which I am very grateful. I would like to express my sincere gratitude to the anonymous reviewer(s), who believed in our PhD proposal and provided us with valuable comments on each stage of the development of this research.I would like to thank the University of São Paulo, USP -Brazil, which was my home university during these four and a half years of intense work. I am also grateful to the Catholic University of Leuven, KU Leuven -Belgium, which was my host university during more than one year. In special, I am deeply grateful to both the Housing and Health Service teams at the KU Leuven, for the prompt help in arranging a suitable accommodation for me and my family, as well as for the invaluable help with some health issues that we had to dealt with while our stay in Belgium.My infinitely big thanks goes to my Brazilian promoter, Prof. Leopoldo de Oliveira, for the continuous support of numerous aspects, not only regarding my thesis, but also in my life and even in the life of my family. Words are insufficient to express my gratitude for his knowledge, motivation, encouragement, interest on my work and patience. My special thanks also goes to his wife, Prof a . Maira da Silva, for her knowledge and constant encouragement.My sincere thanks goes to my Belgian promoter, Prof. Wim Desmet, who provided me an opportunity to join his team. Thank you very much, Prof. Wim, for your guidance through the monthly meetings, as well as for the useful discussions during private meetings, for your feedback after some oral presentations and corrections to this manuscript. I remain indebted to Prof. Wim, for his disposal when solving all the administrative issues at the KU Leuven, as well as when I suffered from some health issues, despite his busy schedule. A special thanks goes to Prof. Paul Sas, who allowed me using his DSP module, when running the experimental campaign at the KU Leuven.Besides my promoters, I would like to thank the supervision committee at USP, composed by Prof. Marcelo Areias Trindade and Prof. Carlos de Marqui Jr., as well as to thank the supervision committee at the KU Leuven, composed by Prof. Paul Sas, Prof. Herman Van der Auweraer and Prof. Marc Moonen. All their comments and suggestions have undoubtedly improved the quality of this work. The joint evaluation committee composed by Prof. Paul Sas, Prof. Vicente Lopes Júnior, Prof. Domingos Alves Rade and Prof. Flávio Donizeti Marques, is also gratefully acknowledged for their interest and suggestions on this work.I would like to express my thanks to the staff at Siemens Industry Software NV. (Belgium), for the prompt help in providing us with measurements of the acoustic emission of the powertrain in hybrid electric vehicles. I am especially grateful to Herman Van der Auweraer, Karl Janssens, Mathieu Sarrazin and Giampiero Accardo for their help with the experimental data, as well as for the fruitful discussions on the goals...
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