Calculate bike weight#

Download the bike model used in this example and import it into a new project to work on.

Download the model: Bike Model.
Open the SAM editor in your browser and select the desired organization (for example, MyOrga).
Select New Project > SysML V2 > Import File.
Select Choose File for the File to import option.
Select the bike.xmi file that you just downloaded. The project name is automatically set to bike.
Click Import and wait for the project to load.

You can now work on this bike model.

Calculate weight#

The bike weight is the sum of the frame weight and the weight of all wheel component elements. Thus, you want to calculate the sum of all blue elements in the model:

Step 1: Load the project#

Note

Ensure that you have installed PySAM SysML2. If not, see Installation.

Before loading the project, create a connector and a project manager.

To obtain the required data, see Find organization ID and Find authentication token.

Import libraries and create a connection to the SysML2 API server#

# Import connector and model manager
import requests
from urllib3.exceptions import InsecureRequestWarning

from ansys.sam.sysml2 import AnsysSysML2APIConnector, SysML2ProjectManager

# Used to disable warnings
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)

# Create your connector for the SAM Server
ansyssysml2apiconnector = AnsysSysML2APIConnector(
    server_url="<SAM Server URL>",  # Your SAM server base URL
    organization_id="<Orga ID>",  # The organization ID
    token="<Token>",  # Your authorization token
    use_ssl=False,  # If the server hasn't a valid SSL
)

After logging in, load the bike project.

Note

To load a project, you need its ID. Find it in the editor’s URL.

Dynamic approach

Load the bike project with the project manager#

project_manager = SysML2ProjectManager(connector=ansyssysml2apiconnector)

my_bike_project = project_manager.get_scripting_project("<Bike Project ID>")

Static approach

Load the bike project with the project manager#

project_manager = SysML2ProjectManager(connector=ansyssysml2apiconnector)

my_bike_project = project_manager.get_sysml_project("<Bike Project ID>")

For more information about the project object, see Project in the API reference documentation.

Step 2: Calculate bike weight#

After loading the project, get the Bike element. As explained in Access methods, there are many ways to get an element. This code uses dot notation:

Dynamic approach

Get the bike element from the project structure#

bike = my_bike_project.get_root_package().Structure.Bike

Static approach

Get the bike element from the project structure#

bike = my_bike_project.get_root_package().get("Structure").get("Bike")

To calculate the bike weight, sum the weight of all blue elements in the model:

To get the weight of each piece, use the weight attribute with dot notation:

Dynamic approach

Calculate total bike weight by summing component weights#

bike_weight = (
    bike.frontWheel.rim.weight.get_value()[0]
    + bike.frontWheel.tire.weight.get_value()[0]
    + bike.rearWheel.rim.weight.get_value()[0]
    + bike.rearWheel.tire.weight.get_value()[0]
    + bike.frame.weight.get_value()[0]
)

Static approach

Calculate total bike weight by summing component weights#

bike_weight = (
    bike.get("frontWheel").get("rim").get("weight").get_value()[0]
    + bike.get("frontWheel").get("tire").get("weight").get_value()[0]
    + bike.get("rearWheel").get("rim").get("weight").get_value()[0]
    + bike.get("rearWheel").get("tire").get("weight").get_value()[0]
    + bike.get("frame").get("weight").get_value()[0]
)

Print the bike weight:

Print the calculated bike weight#

print(bike_weight)

You now have the total bike weight.

Note

Dynamic approach

Download the full code.

Static approach

Download the full code.