Transfer path analysis in the design of active control systems

• Grant number: 11/04815-3
• Support Opportunities: Scholarships in Brazil - Master
• Start date: September 01, 2011
• End date: February 28, 2013
• Field of knowledge: Engineering - Mechanical Engineering - Mechanics of Solids
• Principal Investigator: Leopoldo Pisanelli Rodrigues de Oliveira
• Grantee: Fábio Xavier de Melo
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 10/02198-4 - Active sound quality control, AP.JP

Abstract

The Transfer Path Analysis (TPA) is a group of numerical/experimental tools for the analysis and troubleshooting of noise and vibration problems in linear time invariant vibro-acoustic systems, being the automotive sector its major user. TPA consists of a numerical/experimental analysis that allows the identification of the main noise and vibration sources and the structural/acoustic transfer paths to the target points. With TPA it is also possible to treat linear system with non-linear sub-systems or systems with frequency dependent dynamic properties. Based on the sources and paths, it is possible to propose modifications that efficiently minimize noise and vibration at the target positions. By means of active control it is possible to modify noise and vibration in order to change, rather than minimize noise and vibration, achieving certain design targets. Finite Element Models and experimental data can be combined on the identification, solution and troubleshooting of noise and vibration problems in what is referred to hybrid-TPA. This project aims at presenting the state of the art in hybrid-TPA as well as its contribution to the design of active control systems. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE MELO, FABIO XAVIER; RODRIGUES DE OLIVEIRA, LEOPOLDO PISANELLI. Combining classical and component-based TPA for equivalent load identification. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 42, n. 6, MAY 25 2020. (11/04815-3, 10/02198-4)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

MELO, Fábio Xavier de. Transfer path analysis in the design of active control system. 2013. Master's Dissertation - Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) São Carlos.