*Heading
**
**  FE-input file in Simulia Abaqus syntax, associated with: Ullmann, R. and Sicklinger, S.: "A two-dimensional structural-acoustic radiation benchmark", DOI:10.17632/mhyk7r6v2z.1
**	Model variant: reverberant boundary conditions for acoustic fluid
**
** Job name: radiation_reverberation_room Model name: radiation_reverberation_room
** Generated by: Abaqus/CAE 2018.HF5
*Preprint, echo=NO, model=NO, history=NO, contact=NO
** ----------------------------------------------------------------
**
** PART INSTANCE: air-1
**
*Node
*Element, type=AC2D4
*Node
*Nset, nset=air-1-RefPt_
*Nset, nset=air-1_pressure_inner, generate
*Nset, nset=air-1_pressure_outter
*Nset, nset=air-1_all_ele_air, generate
*Elset, elset=air-1_all_ele_air, generate
*Elset, elset=_air-1_surf_air_S4, generate
*Elset, elset=_air-1_surf_air_S2, generate
*Surface, type=ELEMENT, name=air-1_surf_air
_air-1_surf_air_S4, S4
_air-1_surf_air_S2, S2
*Elset, elset=_air-1_surf_air-beam_S3, generate
*Surface, type=ELEMENT, name=air-1_surf_air-beam
_air-1_surf_air-beam_S3, S3
** Section: air_sec
*Solid Section, elset=air-1_all_ele_air, material=air
1.,
** ----------------------------------------------------------------
**
** PART INSTANCE: disc-1
**
*Node
*Element, type=CPS4
*Nset, nset=disc-1_load
*Nset, nset=disc-1_all_ele_solid, generate
*Elset, elset=disc-1_all_ele_solid, generate
*Nset, nset=disc-1_connection_left
*Nset, nset=disc-1_connection_leftleft
*Nset, nset=disc-1_connection_right
*Nset, nset=disc-1_connection_rightright
** Section: sec_disc
*Solid Section, elset=disc-1_all_ele_solid, material=steel_disc
1.,
** ----------------------------------------------------------------
**
** PART INSTANCE: link-left-1
**
*Node
*Element, type=B23
*Nset, nset=link-left-1_all_ele_beam, generate
*Elset, elset=link-left-1_all_ele_beam, generate
*Nset, nset=link-left-1_connection_top
*Nset, nset=link-left-1_connection_bottom
** Section: sec_left  Profile: prof_left
*Beam Section, elset=link-left-1_all_ele_beam, material=steel_left, temperature=GRADIENTS, section=BOX
0.05, 0.02, 0.002, 0.002, 0.002, 0.002
0.,0.,-1.
** ----------------------------------------------------------------
**
** PART INSTANCE: link-leftleft-1
**
*Node
*Element, type=B23
*Nset, nset=link-leftleft-1_all_ele_beam, generate
*Elset, elset=link-leftleft-1_all_ele_beam, generate
*Nset, nset=link-leftleft-1_connection_bottom
*Nset, nset=link-leftleft-1_connection_top
** Section: sec_leftleft  Profile: prof_leftleft
*Beam Section, elset=link-leftleft-1_all_ele_beam, material=steel_leftleft, temperature=GRADIENTS, section=BOX
0.05, 0.02, 0.002, 0.002, 0.002, 0.002
0.,0.,-1.
** ----------------------------------------------------------------
**
** PART INSTANCE: link-right-1
**
*Node
*Element, type=B23
*Nset, nset=link-right-1_all_ele_beam, generate
*Elset, elset=link-right-1_all_ele_beam, generate
*Nset, nset=link-right-1_connection_bottom
*Nset, nset=link-right-1_connection_top
** Section: sec_right  Profile: prof_right
*Beam Section, elset=link-right-1_all_ele_beam, material=steel_right, temperature=GRADIENTS, section=BOX
0.05, 0.02, 0.002, 0.002, 0.002, 0.002
0.,0.,-1.
** ----------------------------------------------------------------
**
** PART INSTANCE: link-rightright-1
**
*Node
*Element, type=B23
*Nset, nset=link-rightright-1_all_ele_beam, generate
*Elset, elset=link-rightright-1_all_ele_beam, generate
*Nset, nset=link-rightright-1_connection_bottom
*Nset, nset=link-rightright-1_connection_top
** Section: sec_rightright  Profile: prof_rightright
*Beam Section, elset=link-rightright-1_all_ele_beam, material=steel_rightright, temperature=GRADIENTS, section=BOX
0.05, 0.02, 0.002, 0.002, 0.002, 0.002
0.,0.,-1.
** ----------------------------------------------------------------
**
** PART INSTANCE: plate-1
**
*Node
*Element, type=B23
*Nset, nset=plate-1_connection_left
*Nset, nset=plate-1_connection_rightright
*Nset, nset=plate-1_bc
*Nset, nset=plate-1_connection_leftleft
*Nset, nset=plate-1_connection_right
*Nset, nset=plate-1_all_ele_beam, generate
*Elset, elset=plate-1_all_ele_beam, generate
*Elset, elset=_plate-1_surf_beam_SPOS, generate
*Surface, type=ELEMENT, name=plate-1_surf_beam
_plate-1_surf_beam_SPOS, SPOS
** Section: sec_plate  Profile: prof_plate
*Beam Section, elset=plate-1_all_ele_beam, material=steel_plate, temperature=GRADIENTS, section=RECT
1., 0.001
0.,0.,-1.
** ----------------------------------------------------------------
**
** PART INSTANCE: air-beam-1
**
*Node
*Element, type=B23
*Nset, nset=air-beam-1_all_ele_beam, generate
*Elset, elset=air-beam-1_all_ele_beam, generate
*Elset, elset=_air-beam-1_surf_air-beam_SNEG, generate
*Surface, type=ELEMENT, name=air-beam-1_surf_air-beam
_air-beam-1_surf_air-beam_SNEG, SNEG
** Section: sec_plate_outter  Profile: prof_plate_outter
*Beam Section, elset=air-beam-1_all_ele_beam, material=steel_plate_outter, temperature=GRADIENTS, section=RECT
1., 0.001
0.,0.,-1.
*System
*Element, type=CONN2D2
*Connector Section, elset=Wire-1-Set-1, behavior=consec_leftleft_top
Cartesian, Rotation
*Element, type=CONN2D2
*Connector Section, elset=Wire-2-Set-1, behavior=consec_left_top
Cartesian, Rotation
*Element, type=CONN2D2
*Connector Section, elset=Wire-3-Set-1, behavior=consec_right_top
Cartesian, Rotation
*Element, type=CONN2D2
*Connector Section, elset=Wire-4-Set-1, behavior=consec_rightright_top
Cartesian, Rotation
*Element, type=CONN2D2
*Connector Section, elset=Wire-5-Set-1, behavior=consec_leftleft_bottom
Cartesian, Rotation
*Element, type=CONN2D2
*Connector Section, elset=Wire-6-Set-1, behavior=consec_left_bottom
Cartesian, Rotation
*Element, type=CONN2D2
*Connector Section, elset=Wire-7-Set-1, behavior=consec_right_bottom
Cartesian, Rotation
*Element, type=CONN2D2
*Connector Section, elset=Wire-8-Set-1, behavior=consec_rightright_bottom
Cartesian, Rotation
*Nset, nset=Wire-1-Set-1
*Nset, nset=Wire-1-Set-1
*Elset, elset=Wire-1-Set-1
*Nset, nset=Wire-2-Set-1
*Nset, nset=Wire-2-Set-1
*Elset, elset=Wire-2-Set-1
*Nset, nset=Wire-3-Set-1
*Nset, nset=Wire-3-Set-1
*Elset, elset=Wire-3-Set-1
*Nset, nset=Wire-4-Set-1
*Nset, nset=Wire-4-Set-1
*Elset, elset=Wire-4-Set-1
*Nset, nset=Wire-5-Set-1
*Nset, nset=Wire-5-Set-1
*Elset, elset=Wire-5-Set-1
*Nset, nset=Wire-6-Set-1
*Nset, nset=Wire-6-Set-1
*Elset, elset=Wire-6-Set-1
*Nset, nset=Wire-7-Set-1
*Nset, nset=Wire-7-Set-1
*Elset, elset=Wire-7-Set-1
*Nset, nset=Wire-8-Set-1
*Nset, nset=Wire-8-Set-1
*Elset, elset=Wire-8-Set-1
*Nset, nset=allFluid, generate
*Elset, elset=allFluid, generate
*Nset, nset=allStruc, generate
*Nset, nset=allStruc, generate
*Nset, nset=allStruc, generate
*Elset, elset=allStruc, generate
*Elset, elset=allStruc, generate
*Elset, elset=allStruc, generate
*Nset, nset=clamp
*Nset, nset=pinned
*Nset, nset=pinned
*Nset, nset=pinned
** Constraint: tie_air
*Tie, name=tie_air, adjust=no
plate-1_surf_beam, air-1_surf_air
** Constraint: tie_air-beam
*Tie, name=tie_air-beam, adjust=yes, no rotation
air-beam-1_surf_air-beam, air-1_surf_air-beam
*Connector Behavior, name=consec_leftleft_top
*Connector Elasticity, component=1
*Connector Elasticity, component=2
*Connector Elasticity, component=3
*Connector Elasticity, component=4
*Connector Elasticity, component=5
*Connector Elasticity, component=6
*Connector Damping, component=1, type=structural
*Connector Damping, component=2, type=structural
*Connector Damping, component=3, type=structural
*Connector Damping, component=4, type=structural
*Connector Damping, component=5, type=structural
*Connector Damping, component=6, type=structural
*Connector Behavior, name=consec_left_top
*Connector Elasticity, component=1
*Connector Elasticity, component=2
*Connector Elasticity, component=3
*Connector Elasticity, component=4
*Connector Elasticity, component=5
*Connector Elasticity, component=6
*Connector Damping, component=1, type=structural
*Connector Damping, component=2, type=structural
*Connector Damping, component=3, type=structural
*Connector Damping, component=4, type=structural
*Connector Damping, component=5, type=structural
*Connector Damping, component=6, type=structural
*Connector Behavior, name=consec_right_top
*Connector Elasticity, component=1
*Connector Elasticity, component=2
*Connector Elasticity, component=3
*Connector Elasticity, component=4
*Connector Elasticity, component=5
*Connector Elasticity, component=6
*Connector Damping, component=1, type=structural
*Connector Damping, component=2, type=structural
*Connector Damping, component=3, type=structural
*Connector Damping, component=4, type=structural
*Connector Damping, component=5, type=structural
*Connector Damping, component=6, type=structural
*Connector Behavior, name=consec_rightright_top
*Connector Elasticity, component=1
*Connector Elasticity, component=2
*Connector Elasticity, component=3
*Connector Elasticity, component=4
*Connector Elasticity, component=5
*Connector Elasticity, component=6
*Connector Damping, component=1, type=structural
*Connector Damping, component=2, type=structural
*Connector Damping, component=3, type=structural
*Connector Damping, component=4, type=structural
*Connector Damping, component=5, type=structural
*Connector Damping, component=6, type=structural
*Connector Behavior, name=consec_leftleft_bottom
*Connector Elasticity, component=1
*Connector Elasticity, component=2
*Connector Elasticity, component=3
*Connector Elasticity, component=4
*Connector Elasticity, component=5
*Connector Elasticity, component=6
*Connector Damping, component=1, type=structural
*Connector Damping, component=2, type=structural
*Connector Damping, component=3, type=structural
*Connector Damping, component=4, type=structural
*Connector Damping, component=5, type=structural
*Connector Damping, component=6, type=structural
*Connector Behavior, name=consec_left_bottom
*Connector Elasticity, component=1
*Connector Elasticity, component=2
*Connector Elasticity, component=3
*Connector Elasticity, component=4
*Connector Elasticity, component=5
*Connector Elasticity, component=6
*Connector Damping, component=1, type=structural
*Connector Damping, component=2, type=structural
*Connector Damping, component=3, type=structural
*Connector Damping, component=4, type=structural
*Connector Damping, component=5, type=structural
*Connector Damping, component=6, type=structural
*Connector Behavior, name=consec_right_bottom
*Connector Elasticity, component=1
*Connector Elasticity, component=2
*Connector Elasticity, component=3
*Connector Elasticity, component=4
*Connector Elasticity, component=5
*Connector Elasticity, component=6
*Connector Damping, component=1, type=structural
*Connector Damping, component=2, type=structural
*Connector Damping, component=3, type=structural
*Connector Damping, component=4, type=structural
*Connector Damping, component=5, type=structural
*Connector Damping, component=6, type=structural
*Connector Behavior, name=consec_rightright_bottom
*Connector Elasticity, component=1
*Connector Elasticity, component=2
*Connector Elasticity, component=3
*Connector Elasticity, component=4
*Connector Elasticity, component=5
*Connector Elasticity, component=6
*Connector Damping, component=1, type=structural
*Connector Damping, component=2, type=structural
*Connector Damping, component=3, type=structural
*Connector Damping, component=4, type=structural
*Connector Damping, component=5, type=structural
*Connector Damping, component=6, type=structural
**
** MATERIALS
**
*Material, name=air
*Acoustic Medium
*Density
 1.2,
*Material, name=steel_disc
*Damping, structural=0.01
*Density
7850.,
*Elastic
 2.11e+11, 0.3
*Material, name=steel_left
*Damping, structural=0.01
*Density
7850.,
*Elastic
 2.11e+11, 0.3
*Material, name=steel_leftleft
*Damping, structural=0.01
*Density
7850.,
*Elastic
 2.11e+11, 0.3
*Material, name=steel_plate
*Damping, structural=0.01
*Density
7850.,
*Elastic
 2.11e+11, 0.3
*Material, name=steel_plate_outter
*Damping, structural=0.01
*Density
7850.,
*Elastic
 2.11e+11, 0.3
*Material, name=steel_right
*Damping, structural=0.01
*Density
7850.,
*Elastic
 2.11e+11, 0.3
*Material, name=steel_rightright
*Damping, structural=0.01
*Density
7850.,
*Elastic
 2.11e+11, 0.3
**
** BOUNDARY CONDITIONS
**
** Name: clamp Type: Displacement/Rotation
*Boundary
clamp, 1, 1
clamp, 2, 2
clamp, 6, 6
** Name: pinned Type: Displacement/Rotation
*Boundary
pinned, 1, 1
pinned, 2, 2
** ----------------------------------------------------------------
**
** STEP: ssd
**
*Step, name=ssd, nlgeom=NO, perturbation
*Steady State Dynamics, direct, frequency scale=LINEAR, friction damping=NO
1., 800., 800, 1.
**
** LOADS
**
** Name: load   Type: Concentrated force
*Cload, real
disc-1_load, 1, 1000.
disc-1_load, 2, 1000.
*Cload, imaginary
disc-1_load, 1, 100.
**
** OUTPUT REQUESTS
**
**
** FIELD OUTPUT: struc
**
*Output, field
*Node Output, nset=allStruc
U, V
*Element Output, elset=allStruc, directions=YES
NFORC,
**
** FIELD OUTPUT: energy_beam
**
*Element Output, elset=plate-1_all_ele_beam, directions=YES
ELSE,
**
** FIELD OUTPUT: fluid
**
*Output, field, frequency=100
*Node Output, nset=allFluid
POR,
*Element Output, elset=allFluid, directions=YES
INTEN,
**
** HISTORY OUTPUT: por_inner
**
*Output, history
*Node Output, nset=air-1_pressure_inner
POR,
**
** HISTORY OUTPUT: por_outter
**
*Node Output, nset=air-1_pressure_outter
POR,
**
*Energy Output
ALLQB
*End Step