Bases: seapy.subsystems.subsystem.Subsystem
Abstract base class for all structural subsystems.
Constructor.
| Parameters: |
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Methods
| __init__(name, system, **properties) | Constructor. |
| addExcitation(name, model, **properties) | Add excitation to subsystem. |
| SubsystemStructural.df | |
| disable([couplings]) | Disable this subsystem. |
| enable([couplings]) | Enable this subsystem. |
| info([attributes]) | Return dataframe. |
| plot(quantity[, yscale]) | Plot quantity. |
Attributes
| SORT | str(object=’‘) -> str |
| average_frequency_spacing | “ |
| classname | Name of class of the object. |
| component | |
| conductance | Conductance . |
| conductance_point_average | Average point conductance of a structural component. |
| damping_term | The damping term is the ratio of the modal half-power bandwidth to the average modal frequency spacing. |
| dlf | Damping loss factor of subsystem. |
| enabled | Switch indicating whether the object is enabled. |
| energy | Total energy in subsystem. |
| frequency | Frequency. |
| impedance | Impedance ![]() |
| included | Indicates whether the object is included in the analysis. |
| linked_couplings_from | |
| linked_couplings_to | |
| linked_excitations | |
| mobility | Mobility Y |
| modal_density | Modal density. |
| modal_energy | Class capable of containing spectral values. |
| modal_overlap_factor | Modal overlap factor. |
| name | |
| power_input | Total input power due to excitations. |
| resistance | Resistance , the real part of the impedance . |
| resistance_point_average | Average point resistance. |
| soundspeed_group | Group velocity in a subsystem. |
| soundspeed_phase | Phase velocity in a subsystem. |
| tlf | Total loss factor. |
| velocity | Vibrational velocity . |
| velocity_level | Velocity level . |
| wavenumber | Wave number. |
Average point conductance of a structural component.

See Lyon, page 149, equation 8.5.2 as well as page 200.
Velocity level
.
| Return type: | numpy.ndarray |
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The structural velocity level is calculated as
