Diseño y validación mediante software de un deshierbador manual para uso en pequeñas áreas de terreno

Abstract

Due to the excessive weeds present in the crops, it has been seen the need to design and validate through the ANSYS software a manual weeding used in the agricultural sector especially for use in small areas of land that are being cultivated. As Ecuador is an agricultural country, it is sought to contribute with this machine to farmers so that their work is productive in the shortest possible time. In this way, the soil, its classes and characteristics, and agricultural tools were investigated. A QFD analysis was carried out to determine which is the best alternative that meets the technical requirements that the user needs; The mechanical design of the manual weeder was also executed and then proceeded with the CAD design in the NX software according to the specifications required by the user. To validate the design of the manual weeder, the ANSYS software was used through the Static Structural module, obtaining some important parameters such as total deformation, stress and the safety factor of each element that makes up the manual weeder; the results obtained in this software were reliable thanks to the convergence analysis that was carried out to verify their reliability, showing a minimum variation between them, a range of results was also established because the MEF almost never gives exact results because it is based on numerical methods. The structure was finally analyzed, and it was observed that it is better to work by surface because it is made up of structural profiles, giving the first analysis a satisfactory result. It is recommended to analyze the structure through SAP 2000 software to verify the results obtained in ANSYS.