Stiffness
Linear stiffness between two points in a 1D space. In Laplace domain with \(s\in\mathbb C\):
\begin{equation*}
f(s) = \frac{K\,e(s)}{s}.
\end{equation*}
Stiffness
Linear stiffness between two points in a 1D space. In Laplace domain with \(s\in\mathbb C\):
\begin{equation*}
f(s) = \frac{K\,e(s)}{s}.
\end{equation*}
Power variables
flux: Force \(f\) (N)
effort: Velocity \(v\) (m/s)
Arguments
- label : str
- Stiffness label.
- nodes : ('P1', 'P2')
- Mechanical points associated with the stiffness endpoints with positive flux P1->P2.
- parameters : keyword arguments
- Component parameter.
| Key | Description | Unit | Default |
|---|---|---|---|
| K | Mechanical stiffness | N/m | 1000.0 |
Usage
stiff = Stiffness('stiff', ('P1', 'P2'), K=1000.0)
Netlist line
mechanics.stiffness stiff ('P1', 'P2'): K=1000.0;
Example
>>> # Import dictionary
>>> from pyphs.dictionary import mechanics
>>> # Define component label
>>> label = 'stiff'
>>> # Define component nodes
>>> nodes = ('P1', 'P2')
>>> # Define component parameters
>>> parameters = {'K': 1000.0, # Mechanical stiffness (N/m)
... }
>>> # Instanciate component
>>> component = mechanics.Stiffness(label, nodes, **parameters)
>>> # Graph dimensions
>>> len(component.nodes)
2
>>> len(component.edges)
1