ross.stochastic.ST_DiskElement

ross.stochastic.ST_DiskElement#

class ross.stochastic.ST_DiskElement(n, m, Id, Ip, tag=None, color='Firebrick', is_random=None)#

Random disk element.

Creates an object containing a list with random instances of DiskElement.

Parameters:

n: int: Node in which the disk will be inserted.
mfloat, list: Mass of the disk element. Input a list to make it random.
Idfloat, list: Diametral moment of inertia. Input a list to make it random.
Ipfloat, list: Polar moment of inertia Input a list to make it random.
tagstr, optional: A tag to name the element Default is None
colorstr, optional: A color to be used when the element is represented. Default is “Firebrick”.
is_randomlist: List of the object attributes to become random. Possibilities:

[“m”, “Id”, “Ip”]

Methods

classmethod from_geometry(n, material, width, i_d, o_d, tag=None, is_random=None)#

Random disk element.

Creates an object containing a list with random instances of DiskElement.from_geometry.

Parameters:

n: int: Node in which the disk will be inserted.
material: ross.Material, list of ross.Material: Disk material. Input a list to make it random.
width: float, list: The disk width. Input a list to make it random.
i_d: float, list: Inner diameter. Input a list to make it random.
o_d: float, list: Outer diameter. Input a list to make it random.
tagstr, optional: A tag to name the element Default is None
is_randomlist: List of the object attributes to become random. Possibilities:

[“material”, “width”, “i_d”, “o_d”]

plot_random_var(var_list=None, histogram_kwargs=None, plot_kwargs=None)#

Plot histogram and the PDF.

This function creates a histogram to display the random variable distribution.

Parameters:

var_listlist, optional: List of random variables, in string format, to plot. Default is plotting all the random variables.
histogram_kwargsdict, optional: Additional key word arguments can be passed to change the plotly.go.histogram (e.g. histnorm=”probability density”, nbinsx=20…). *See Plotly API to more information.
plot_kwargsdict, optional: Additional key word arguments can be passed to change the plotly go.figure (e.g. line=dict(width=4.0, color=”royalblue”), opacity=1.0, …). *See Plotly API to more information.

Returns:

Examples

>>> import ross.stochastic as srs
>>> elm = srs.st_disk_example()
>>> fig = elm.plot_random_var(["m"])
>>> # fig.show()

random_var(is_random, *args)#

Generate a list of objects as random attributes.

This function creates a list of objects with random values for selected attributes from ross.DiskElement.

Parameters:

is_randomlist: List of the object attributes to become stochastic.
*argsdict: Dictionary instanciating the ross.DiskElement class. The attributes that are supposed to be stochastic should be set as lists of random variables.

Returns: