ISAAC Programme

Programme

The programme is divided in two days:
Thursday 20 Sept. 2018 from 8h30 until 18h30 and Friday 21 Sept. 2018 from 8h30 until 17h00.

Course programme

Introduction to technical acoustics

Fundamentals of sound generation, definition of sound parameters, measurement of sound pressure, sound intensity and sound power.

Source localisation and identification

Microphone array techniques, near-field acoustic holography and inverse frequency response function technique, case studies.

Transfer path identification

Basic concepts of acoustic modal testing. Theoretical background and experimental procedures of Transfer Path Analysis techniques. Applications to engine noise and road noise analysis.

Sound perception – Sound quality

Psycho-acoustic background, objective measurements, subjective evaluation, sound quality metrics, demonstration.

Advanced noise control engineering solutions

Working principles and characterization of visco-elastic and poro-elastic material solutions. Basic concepts and demonstration of innovative meta-material solutions. Basic concepts of active noise control solutions.

Integrated application cases

Application of the measurement, modelling and analysis techniques for the NVH investigation of electric drivetrains and for Advanced Pass-by noise evaluation.

Introduction to numerical acoustics

Concepts of numerical (flow) acoustics, overview of solution methods for interior/exterior problems.

Acoustic finite elements

Finite element formulation, application field, coupled versus uncoupled problems, examples.

Acoustic boundary elements

Boundary integral formulations, application field, solution schemes, coupled versus uncoupled problems, modelling considerations.

Novel technologies and approaches for advanced NVH simulations

Higher-order methods for efficient vibro-acoustic simulation. PML methods for efficient acoustic radiation simulation. Advanced meshing procedures and load modelling.

Mid- and high-frequency techniques

Theoretical background, principles, assumptions and applications of Statistical Energy Analysis (SEA). Overview of some alternative modelling techniques.

Advanced noise control engineering solutions (2)

Design and characterisation of lightweight noise control engineering materials and control solutions.

Aero-acoustic modelling and testing

Basic concepts of aero-acoustic source characterization. Process flow in hybrid aero-acoustic simulation. Two-port methods for flow-acoustic characterization.