Vibro Acoustic Package - pyva

The pyva [1] package provides typical routines to calculate and predict the vibroacoustics of technical systems using deterministic e.g. (FEM), random (SEA) and the combination of both hybrid FEM/SEA.

It is a Python library for Vibroacoustic simulation using numpy, scipy and matplotlib.

All examples, systems and models from the book Vibroacoustic Simulation - An Introduction to SEA and hybrid methods [Pei2022] are created using this toolbox.

Contents

• About pyva
  • Objectives
  • Modules
    • The main module
    • Subpackages
• User guide
  • Installation
  • Creating Models
    • Lumped Models
    • Acoustic network
    • TMM - infinite Layer
    • Material Parameter Determination
    • SEA models
    • Hybrid FEM/SEA models
  • Summary
• Toolbox description
  • Models module
    • Finite Element Model (FEM)
    • Vibro Acoustic Model VAmodel
    • HybridModel
    • Transfer matrix model
  • Properties package
    • Materials
    • Geometrical properties
    • Structural properties
    • Poroelastic Materials
  • Systems package
    • SEA_system
    • Acoustic Systems
    • Structure Systems
    • Special systems
  • Infinite Layers
    • Acoustic Layer
    • Solid Layer
    • Impervious Screen
    • Poroelastic Layer
    • Use perforation at all plate-like infinite layers
    • Coupling transfer matrices
  • Coupling package
    • Connections
    • Junctions
  • Geometry package
    • Mesh classes
  • Data package
    • DOFtype
    • Degree of freedom DOF
    • DataAxis
    • Signal
    • LinearMatrix
    • DynamicMatrix
• API
  • pyva.coupling
    • pyva.coupling.connections
    • pyva.coupling.junctions
  • pyva.data
    • pyva.data.dof
    • pyva.data.matrixClasses
  • pyva.geometry
    • pyva.geometry.meshClasses
  • pyva.loads
    • pyva.loads.loadCase
  • pyva.models
    • pyva.models.FEM
    • pyva.models.HybridModel
    • pyva.models.TMmodel
    • pyva.models.VAmodel
  • pyva.properties
    • pyva.properties.geometricalPropertyClasses
    • pyva.properties.materialClasses
    • pyva.properties.structuralPropertyClasses
  • pyva.systems
    • pyva.systems.SEA_system
    • pyva.systems.acoustic1Dsystems
    • pyva.systems.acoustic3Dsystems
    • pyva.systems.acousticRadiators
    • pyva.systems.infiniteLayers
    • pyva.systems.lumpedSystems
    • pyva.systems.structure1Dsystems
    • pyva.systems.structure2Dsystems
  • pyva.useful
    • pyva.useful.get_3rd_oct_axis_labels
    • pyva.useful.get_n_th_oct_frequencies
    • pyva.useful.get_omega_DataAxis
    • pyva.useful.get_omega_values
    • pyva.useful.isscalar
    • pyva.useful.set_vascript_graphics
• Code examples
  • Lumped model examples
    • The harmonic oscillator
  • Acoustic network examples
    • The expansion chamber
    • Helmholtz resonator in pipe
  • TMmodel infinite layer examples
    • Absorber
    • Double Walls
    • Material Parameter Determination
    • Absorber Design with Poroelastic Materials
    • Acoustic transmission design with poroelastic foam and rubber
    • Perforated Absorber created with plates with bending wave motion
  • SEA model examples
    • Two rooms separated by a wall
    • Two rooms with floor separated by a wall
    • Box cover of sound source
    • Box cover with noise control treatment
  • Hybrid model examples
    • Two rooms with FE plate and sound source in room 1
    • Two rooms with FE plate and force excitation at plate
• References
• Impressum

Indices and tables

• Index

• Module Index

• Search Page

Footnote

[1]

Fun-fact: When pyva is pronounced in German it accidentally sounds exactly like the name of the author: Alexander Peiffer..