Estudo da viabilidade de simulação assistida para dirimir vibração, ruído e aspereza veicular: nvh diagnose auxiliada por computador

Abstract

The 20th century accompanied the introduction of automobile sales, in addition to the growing potential of automotive engineering in designing means of transport that contributed positively to development and social progress. However, in post-modernity, areas such as vehicular aeroacoustics and sonic have failed to promote mechanisms, whether manual or digital, that would control and attenuate the recurrence of structural noise and vibration in commercialized automobiles. In this article we perform a new approach for NVH (Noise, Vibration and Harshness) diagnosis based on the use of software to reduce costs and optimize the time required to perform the NVH diagnosis. Unlike other works based on this field, since this approach highlights the study of the feasibility of computer-aided simulation in an attempt to guarantee a more accurate and financially accessible technical diagnosis by industries that benefit from this CAE (Computed-Aided Engineering) technology, and to evaluate the legal norms related to NVH and its applications in the automotive industry. The methodology adopted to carry out the study of this viability consists of a qualitative analysis through an interrogation survey of a universe of 200 people, in addition to a quantitative approach based on a financial quotation of the operating costs arising from the acquisition of equipment to carry out the NVH simulation . The results show that the implementation of computer-assisted simulation certainly corroborates the diagnosis of possible failures in terms of vehicle acoustics that the car may present, and that in the long term, from a business perspective, the use of software to assist in the NVH diagnosis configures as an alternative to improve the user experience and robustness in engineering.