discharge tube, reciprocating compressor, finite element method, DFSS, robust design
In order to remain competitive in compressors business by improving quality and reducing launching deadlines, the companies face everyday new challenges related to research and development of compressors. Thus, the application of numerical simulations becomes crucial to design success due to the possibility and viability of virtual models evaluations in most engineering areas. In addition to product optimization, these numerical tools are also capable of provide manufacturing solutions, propose assembly methods and evaluate target deviations due to geometric tolerances and material properties variability. This strategy significantly increases the probability of project success by avoiding redesigns and unanticipated problems during manufacturing and applications (design it right the first time). Furthermore, the union of Finite Element Method and Design for Six Sigma becomes an effective tool which, combined with powerful hardware and numerical resources, allows the development of designs each day more robust. Specifically in this article it will be presented some methods currently used in design of compressors discharge tubes based on finite element models, component robustness analysis, geometric deviations evaluation and even the knowledge about manufacturing, simulating machines and tools used to produce the tubes. The validation of numerical results with experimental data is critical to the credibility of the methodology used.