Ingeniería Mecánica

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    Análisis y medidas de control de las vibraciones mecánicas transmitidas al cuerpo humano para disminuir los riesgos en trabajadores de la empresa Molinos Miraflores
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica, Carrera de Ingeniería Mecánica, 2024-02) Sánchez Pérez, Jairo Renán; Lascano Moreta, Alejandra Marlene
    This work aims to prevent and improve the work environment. The food industry has implemented technological equipment to optimize resources and time; However, the operator who is in contact with these machines is exposed to the emission of mechanical vibrations, affecting physiological health. Companies have production systems, so the machines do not have specific oscillations, but they do generate time, magnitude, and direction to which the operator is exposed. The research was carried out by collecting information through direct observation and technical visits to the main sources of vibration in which the operator carries out each activity. The use of methods of evaluating the risks caused by mechanical vibration exposed in the NTP INEN-ISO 2631 and 5349 standards provide results of exposure to daily vibration to apply the Executive Decree 2393 that focuses on the safety and health of employees and improvement of the work environment. With the results, it was identified that the exposure doses of each operator are tolerable and values less than 1 in type of full-body vibration and vibration by hand-arm system, therefore it is concluded that the exposure doses do not affect the working conditions of the worker. It has been proposed to establish a preventive control plan with records of activities and protective equipment that the operator must use during the working day to reduce exposure to vibrations mechanics.
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    Estudio del ruido laboral y vibraciones en el proceso de acabado de la empresa La Fortaleza Cia Ltda. de la ciudad de Ambato
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Mecánica, 2016) Salazar Peña, Alex Ricardo; Lascano Moreta, Alejandra Marlene
    For this project, the used PCE 322A sonometer, where measurement strategy justified is according the provisions of the technical note noise prevention NTP270, the end of evaluation was determined the existence the noise exposure in the company Fortaleza Cia Ltda and work areas with exposure noise are painting and refile and for vibration the used BALMAC 230 vibrometer where measurement strategy justified is according the provisions of the NTP 839 where the objective is the inform the fundamentals and the method for evaluating the risk arising from exposure to vibration. Later is determined the equivalent level daily the worker exposed, for this step was necessary to know the working conditions, this information is important for determine the implanted the sonometer or the dosimeter, because the technical notes NTP noise 950 and 951 establish noise measurement strategies for each of the instruments. As a result of vibration it was determined that the job of polishing the risk value is 2.28 which corresponds to the risk of harmfulness to the hand system - arm and whole body system the risk value is 0.72 which corresponds to risk mean discomfort. And for the job of refile the risk value it is 0.89 which corresponds to an assessment of means discomfort for vibration hand - arm and whole body system the risk value is 0.42 which corresponds to risk with half discomfort.