Diseño y simulación de un equipo de comprobación de acumuladores oleohidráulicos de tipo hidroneumáticos mediante herramientas CAD/CAE

Abstract

The present degree work focused on the design and equipment simulation test for oleohydraulic accumulators used tools of CAD, to determine their status. For this, a bibliographic review of hydraulic designs, standards, and procedures that must be considered in the development of the hydropneumatics accumulator testing equipment had carried out, establishing that the equipment will be able to evaluate accumulators with a volumetric capacity of up 25 liters and pressure maximum of 250 bars. The methodology used was focused on a series of main steps such as: Design requirements, where the technical characteristics and the purpose of the equipment were raised together with the regulations that must be followed when developing a hydraulic circuit; conceptual design, stage that considers the different solutions in relation to the possible design schemes, decreeing the use of an open circuit, since the fluid returns to the tank through return hoses; selection of components, through operational calculations and catalogs of recognized brands where the working properties of each element are specified; modeling of the equipment in 2D by means of FluidSIM and in 3D with the help of SolidWorks; preparation of plans for possible constructions in the future, and finally, the static analysis of the containing structure of all the elements of the equipment with ANSYS Workbench, which showed a safety factor of 5, a maximum deformation of 2.76 mm, and a stress equivalent of 48.43 MPa, negligible in the design, without also forgetting the simulation of the equipment with the different types of hydropneumatics accumulators. With the results obtained, it had satisfactorily concluded that the equipment presents optimal conditions to determine the state of an accumulator virtually, without considering physical damage to them.