Ernesto Juliá Sanchis

Strategies to establish the structure and the evaluation system of the student projects in the bachelor engineering in industrial design and product development at Universitat Politècnica de València campus of Alcoi

The Bachelor Engineering in Industrial Design and Product Development is a multidisciplinary degree, in which a wide range of disciplines have a key role in the final projects developed by the students of fourth grade. At Universitat Politècnica de València – Campus d’Alcoi, a number of lecturers are involved in an Education Project in order to change and adapt the evaluation system of the student projects. The current model is based on developing the work with the help of a supervisor and the evaluation carried out by other three teachers, who form the panel. In the frame of the Education Project, some teachers are trying to apply new strategies to improve both the supervising process and the evaluation system of the projects. First of all, an index is provided to the students to adapt the structure of their work. Then, it is intended that a number of teachers, each one from a different specialization, supervise the progress of the students weekly. Finally, the same teachers will take part in the evaluation as examiners. All this work must be integrated in the 120 attendance hours established to develop the project, which correspond to the 12 credits ECTS. In the frame of the new teaching-learning methodologies, the aim of this Education Project is to provide a system to develop and evaluate the student final projects, taking into account the role of students, supervisors and examiners in every stage of the work.

DEFINITION OF THE MAIN FEATURES OF THE STUDENT PROJECTS FOR THEIR DEVELOPMENT AND ASSESSMENT IN THE BACHELOR ENGINEERING IN INDUSTRIAL DESIGN AND PRODUCT DEVELOPMENT AT UNIVERSITAT POLITÈCNICA DE VALÈNCIA – CAMPUS OF ALCOI

The Bachelor Engineering in Industrial Design and Product Development establishes the final project as a compulsory stage to achieve the degree. Due to the wide range of industrial products that can be designed, there is an extensive number of topics. The students can choose their final project according to the specialization they have studied all along the fourth course. At Universitat Politècnica de València – Campus d’Alcoi, three specializations can be studied: a) Product Design; b) Production and Innovation, and c) Textile and Fashion Design. Due to the multidisciplinary approach, there is a need to define a general index, both for students and lecturers, which contains the minimum contents of every type of project. A team of lecturers are involved in an education project at Universitat Politècnica de València. At least there is one representative for each specialization. The team has been working based on the last five year presented final projects and with a National Standard UNE 157001:2014 General criteria for the formal preparation of the documents constituting a technical project. Part of the work consists of analysing the four types of projects and the basic structure for each one, depending on the specialization. In addition, there is a particular project based on communication issues. The aim of this part of the project is to define the main structure for the minimum contents that these projects must include for their assessment. Finally, a document has been prepared as a basic guideline for students and lecturers, with definitions and instructions. Despite being four different topics, results show a common part which must be fulfilled by every project. Apart from the common part, every specialization has defined the special characteristics to be included. This document would be useful for every part which plays a role in the process: students to focus on the tasks to develop, a document for lecturers to guide the student and introduce the process and the tribunal to obtain the basis for the evaluation.

Estrategias para establecer un sistema que determine el seguimiento, estructura y evaluación de los trabajos final de grado en el Grado de Ingeniería en Diseño Industrial y Desarrollo de Productos de la UPV

Resumen El pretende trabajo trata de establecer un sistema que determine elseguimiento, la estructura y la evaluacion de los trabajos final de grado en elGrado de Ingenieria en Diseno Industrial y desarrollo de productos, donde sehan realizado un documento con las pautas a seguir, el esquema con lasrecomendaciones segun el tipo de Trabajo fin de grado (TFG) y las rubricasa tener en cuenta por el profesor para evaluar el TFG antes de su defensa. Palabras clave: Trabajo final de grado, evaluacion, rubrica, seguimiento,estructura, diseno industrial.

ANALYSIS OF IMPACT SOUND INSULATION PROPERTIES OF RECYCLED RUBBERS FOR TECHNICAL FLOORING IN FITNESS FACILITIES

This work is a comparative analysis of the dynamic stiffness in plates made from recycled rubber intended for their use in technical flooring. The aim is to determine which one of the materials presents the best sound absorbing properties when impact loading conditions for their application in fitness facilities. In addition, the manufacturing of these materials contributes to the optimization of the industrial wastes and reduces the damage to the environment. The recommendations of the standard UNE-EN 29052-1 are considered to determine the dynamic stiffness. The results demonstrate that this product is suitable for its application in technical floors for certain sport activities, because of its low dynamic stiffness, what means that these materials have the capability to isolate the impact sounds quite well. This study is part of a more extensive research project in which some other acoustic parameters are determined, such as the sound transmission loss. Keywords—Impact Sound Insulation, Recycled Rubbers, Technical Flooring.

ESTIMACIÓN DE LA ABSORCIÓN ACÚSTICA DE PANELES FABRICADOS CON NEUMÁTICOS RECICLADOS

ABSTRACT: The present study is conducted to characterize multilayer acoustic panels made from recycled tire rubbers (GTR’s) in order to determine the sound absorption characteristics of these new materials for different applications, trying to give an answer to the environmental problem generated by this waste. This waste is currently used as modifier of asphalt, sport surfaces, molded and calendered products. The article is a first step to evaluate the sound absorption of these new multilayer panels for application in fields such as noise barriers, noise of machinery and equipment, conditioning acoustic enclosures, etc.. Basically two types of products can be obtained from the waste of the tyres: fibers and rubbers. Two types of multilayer panels of thickness 10 mm and 20 mm have been made for a three layer disposition: rubber-fibre-rubber. Then, the standing wave tube method has been used to determine the sound absorption in these materials. For rubber there are 0,7 mm and 2,2-4 mm granulometry. The results show that multilayer panels made of 2,2-4 granulometry present a higher acoustic absorption in the studied frequency range (400-3500 Hz). By increasing the thickness of the panel, the sound absorption coefficient is higher and the multilayer panel increases its sound absorption by adding more percentage of rubber.

Experimental Investigation and Numerical Simulation of the Acoustic Waves Propagation in a Standing Wave Tube: Testing with a Sample of Rockwool

Characterization of sound-absorbing materials is one of the investigation fields that is acquiring most interest in the last few years. As a consequence, there is an increase in investigators who are trying to obtain mathematical models to predict the acoustical behavior of the materials, as well as those who are looking for new materials to improve the acoustic isolation and acoustic conditioning. There are lots of applications, such as mufflers used in engines, in which it is of great interest to know the velocity of sound waves and the pressure distribution inside ducts. In this paper, the numerical simulation technique based on the finite element method is applied to study the propagation of the plane acoustic waves inside a standing wave tube by means of the application of a harmonic analysis, studying the distribution of pressures in an established frequency range. ANSYS software has been used to compare the numerical results with the theoretical ones. Then, comparing the numerical results with the experimental ones, the validity of the experimental method is evaluated. The experimental method follows the Standard ISO 10534-2 that is used for the determination of the absorption coefficient and acoustic impedance in porous and fibrous materials.