Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
DESIGN AND ANALYSIS BY FINITE ELEMENTS OF A BASE FOR A RECIPROCATING COMPRESSOR
Submission Author:
Marcos Hiroshi Takahama , PR
Co-Authors:
Henrique Rissá, Heytor Blaz, Fernando Tanaka Santos, Adailton Borges, Marcos Hiroshi Takahama
Presenter: Marcos Hiroshi Takahama
doi://10.26678/ABCM.COBEM2017.COB17-1123
Abstract
In the study of dynamic systems, it is necessary to consider the behavior of structures subjected to mechanical vibrations, for the purpose of control of the oscillatory movement level or to predict the occurrence of resonance induced by the harmonic motion. Amongst the various equipment present in the industrial parks, compressors continue to be used due to their efficiency and versatility, particularly the reciprocating compressors, one of the oldest compressor models. In this context, the present work proposes to execute a project of a fixation support for the compressor, starting from an already existing reciprocating compressor base, in order to assure that the base does not have natural frequencies near the assembly’s operating frequency, to avoid the phenomenon of resonance. The methodology used for the structure's development was a mathematical modelling and computer simulation using finite element method on a commercially available software and an analysis of the frequency response function between modal hammer and accelerometer in the compressor base with the purpose of evaluating and validating the efficiency of the applied methodology. Through the software, it was also possible to identify the natural frequencies and modes of vibration of various possible base models for the reciprocating compressor. Thus, it was possible to identify the project that fit best the operational needs. Finally, comparing the vibration levels to previous results to ensure the change lowered vibration levels during operating conditions.
Keywords
modal analysis, structural dynamics, Vibration
