| Grant number: | 10/02198-4 |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| Start date: | August 01, 2010 |
| End date: | July 31, 2015 |
| Field of knowledge: | Engineering - Mechanical Engineering - Mechanics of Solids |
| Principal Investigator: | Leopoldo Pisanelli Rodrigues de Oliveira |
| Grantee: | Leopoldo Pisanelli Rodrigues de Oliveira |
| Host Institution: | Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil |
| Associated scholarship(s): | 12/15783-8 - Sound Quality-driven Active Control of Periodic Disturbance for Hybrid Vehicles,
BP.DR 11/04815-3 - Transfer path analysis in the design of active control systems, BP.MS 10/03556-1 - Active Structural Acoustic Control: Design, Simulation and Sound Quality Analysis, BP.MS |
Abstract
Active control is a potential solution to cope with the steadily increasing requirements for noise reduction in many fields. Cavity noise reduction, as encountered in aircraft cabins and vehicle interiors, are typical examples. More recently, not only noise reduction is pursued, but rather an improvement on the appreciation of the perceived noise by the occupants. The first step towards Active Sound Quality Control is to assess standard controllers' performance, taking human perception into account, e.g. by means of psychoacoustic metrics. A further step involves the design of dedicated control schemes for sound quality improvement. This research project also involves the study of simulation and experimental techniques to aid the design of such vibro-acoustic systems with their embedded controllers, e.g., by allowing numerical or hybrid models of the passive system to be included in the control design scheme, enabling model-based control design and auralization of passive and active solutions. The later is critical for the proposed application as control parameter could be tuned based on the users appreciation of the virtual sound field. In addition, if sound quality equivalent excitation is used, a direct correlation with real-life applications can be drawn. Among the expected outcomes are: the proposition of simulation and experimental techniques to assist the control design, a better understanding of the efficiency of standard active control techniques as perceived by humans, the introduction of novel control techniques with clear sound quality improvement. (AU)
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