*Heading
 Muffler and interior air model for sequentially coupled acoustic
 analysis of a muffler
 M, KG, S
** ----------------------------------------------------------------
**
** PART INSTANCE: OuterAir-1
**
*Node, input=muffler_extair_nodes.inp
*Element, type=AC3D20, input=muffler_extair_elem.inp
** ----------------------------------------------------------------
*Elset, elset=OuterAir-1_I1, generate
*Solid Section, elset=OuterAir-1_I1, material=air
 1.,
** ----------------------------------------------------------------
**
** PART INSTANCE: Interface Elements
**
*Element, type=ASI8, elset=asi
** ----------------------------------------------------------------
*Interface,elset=asi
** ----------------------------------------------------------------
*Nset,nset=asi,elset=asi
** ----------------------------------------------------------------
*Submodel, absolute=1.e-3,global elset=MufflerShell-1_I1
 asi,
** ----------------------------------------------------------------
*Elset, elset=_sphere1_S3, generate
*Elset, elset=_sphere1_S4, generate
*Surface, name=sphere1
_sphere1_S3, S3
_sphere1_S4, S4
** ----------------------------------------------------------------
*Elset, elset=_sphere2_S3, generate
*Elset, elset=_sphere2_S4, generate
*Surface, name=sphere2
_sphere2_S3, S3
_sphere2_S4, S4
** ----------------------------------------------------------------
*Elset, elset=_cylinder_S6, generate
*Surface, name=cylinder
_cylinder_S6, S6
** ----------------------------------------------------------------
**
** MATERIALS
**
*Material, name=air
*Acousticmedium,bulkmodulus
*Density
 1.2,
** ----------------------------------------------------------------
**
** STEP: Step-1
**
*Step
 Step-1: Frequency Response
*Steady State Dynamics, direct, frequency scale=linear
 179.0,181.0,12
*Boundary,submodel, step=1
 asi,1,3
*Simpedance,non=circu
 cylinder,0.7
*Simpedance,non=spher
 sphere1,0.7
 sphere2,0.7
*Output,field,op=new,frequency=6
*Node output
 U,POR
*Output,history,op=new,frequency=1
*Node file,nset=asi,frequency=1
 POR,PPOR
*End step