Acoustic Analyses Using Matlab® and Ansys®

Introduction About This Book A Philosophy for Finite Element Modelling Analysis Types Where to Start Background Learning Objectives Introduction Pressure Formulated Acoustic Elements Fluid Structure Interaction Displacement Formulated Acoustic Elements Practical Aspects of Modelling Acoustic Systems with FEA Element Types in Ansys for Acoustic Analyses ACT Acoustic Extension Other Acoustic Loads Other Measures of Acoustic Energy Use of Symmetry Ducts Learning Objectives Theory Example of a Circular Duct Resonator Silencers Gas Temperature Variations Damped Acoustic Systems Learning Outcomes General discussion of damping in Ansys Example: Impedance Tube with Absorbing Material Sound Absorption in a Lined Duct Learning Outcomes Definitions Description of the System Theory Example - Locally Reacting Liner Example - Bulk Reacting Liner Example - Bulk Reacting Liner with Limp Liner and Perforated Sheet Sound Inside a Rigid-Walled Cavity Learning Outcomes Description of the System Theory Example Sabine Room Acoustics Learning Outcomes Description of the System Theory Example Radiation and Scattering Learning Objectives Wave Absorbing Conditions Acoustic Sources Example: Directivity of Acoustic Wave Sources Examples: Radiation in Infinite Domains Example: Radiation of a Baffled Piston Scattering Example: Scattering from a Cylinder Fluid Structure Interaction Learning Outcomes Fluid Structure Interaction Using Ansys FSI Using Modal Coupling Transmission Loss of a Simply Supported Plate Theory Ansys Mechanical APDL Ansys Workbench Results Appendices Bibliography Index