Diseño, Construcción e Implementación de un Sistema de Elevación y Frenado del Péndulo Charpy.

Abstract

The topic is “Design, Construction and Implementation of a braking and lifting system for the Charpy Pendulum.” This research work was done to avoid the physical exhausting caused by the lifting of pendulum hammer. In addition, to provide results in a clear concise. The main goal is to design, to construct, and implement a lifting and braking system in the Charpy Pendulum and a data acquisition system for the energy absorbed by the material and the transition curve, and to have protection elements. It was used a methodology based in the Pahl and Beitz’s model in the development of the thesis. The work is Design, Construction and Implementation of a braking and lifting system of the Charpy Pendulum. There is at ESPOCH Strength Materials Laboratory-School of Mechanics an impact-testing machine, which was created as a thesis topic in 1998 and it was subject to a redesign in 2002, the same work by hand, and it had a high risk to the operator. Currently the machine was modified by installing in it a lifting and a braking system, also it was installed an electronic data acquisition and control which allows to obtain readings of energy absorbed by the material, using an interface designed in LabView, where reports are prepared with these values and obtain the transition curve of the material. Also, it was constructed a protection system to safeguard the physical integrity of people who are carrying out tests, the machine was calibrated following the guidelines of INEN 130, INEN 1502 and INEN 1503 and ASTM E23 rules, to check parameters operation. Thereby reducing the read error on the same, which is 1% retrieved from test results in various types of materials, complying with current regulations. In conclusion, it was complied with the objectives stated in the thesis and it is recommended that the maintenance of the machine is continuous and its use is done with caution.