Research Lines
LVA’s activities are divided into various areas of activity, covering cutting-edge research in the field of acoustics and vibrations and the typical needs encountered in the industrial sector. From numerical analysis to the development of experimental methodologies, the laboratory has a team qualified to act in various types of technical or academic problems.
Search Lines
Voice Acoustics: This line of research is committed to investigating the mechanisms of sound generation of the voice from the point of view of acoustics.
Underwater Acoustics: Study of acoustic propagation in the aquatic environment and in the marine substrate with the objective of developing equipment and systems applied to the naval area.
Vehicular Acoustics: Study of the generation, propagation and control of vibration and noise in automotive vehicles.
Aeroacoustics: Acoustics studies applied to situations with mass flow (flows).
Hearing Aids: Study and development of hearing aids.
Physiology of Hearing, Psychophysics and Psychoacoustics: Physiology of Hearing, Psychophysics and Psychoacoustics
Cochlear Implant: Development of a fully implantable cochlear implant prototype.
Pore Materials for Noise Control: This paper presents the study of sound propagation in porous materials and the means by which sound energy is dissipated, through the use of classic analytical models, the development of experimental characterization benches as well as the use of numerical models.In this context, there is the development of microstructural and macroscopic characterization models and procedures of acoustic materials of interconnecting pores, application of optimization tools to models developed to obtain pore structures with maximum levels of absorption coefficient, according to the fluid and its temperature and pressure conditions.
Metamaterials: Development of materials of high acoustic performance through new geometric concepts.
Numerical Methods and Vibroacoustics: Study and development of numerical methods aimed at solving vibro-acoustic problems, in other words, involving fluid-structure coupling.
Optimization Vibroacoustic: Structural optimization seeks to find a project (structure) that performs best and meets the constraints imposed on it. Performance evaluation is associated with some criterion, which can be: minimum mass, maximum stiffness, minimum natural frequency, maximum critical buckling load, among others. Currently, optimization is a mandatory item in the design stage of any product. LVA uses this tool in its projects to increase performance and reduce costs.
Aircraft Noise and Vibrations: LVA presents a long-standing partnership with Embraer with the objective of developing different research projects involving noise and vibrations in aircraft. The main focus of the projects has been the development of numerical methods aimed at simulating vibroacoustic problems in aircraft. More recently, studies have begun in the area of aeroacoustics and the partnership has also involved POLO/EMC.
Noise and Vibrations of Compressors and Refrigerators: Analysis of sources and propagation paths through experimental and numerical methods. In order to assist in the development of low noise products.
Hearing Health: Multidisciplinary projects involving researchers in the fields of engineering and health.
Acoustically Induced Vibrations in Pipelines of Oil and Gas Industries: Formulation of acoustic and structural behaviors of acoustically excited ducts. Development of numerical procedures for analysis. Fatigue analysis.
