 ```python
import sys
from pyaedt import Hfss, Mechanical, Circuit, AedtConventionalStudy, get_version

# Start AEDT in graphical mode
Hfss.start_aedt(mode="graphical")

# Download and open a project
Hfss.new_project(notebook=True, edt_version="2022.1")
Hfss.set_working_directory("C:/AEDT/HFSS Projects")
Hfss.open_project("my_project.aedt")

# Start HFSS with a specified version
Hfss.set_active_design("HFSS", version=get_version("HFSS 2022.1"))

# Start a Circuit and add the HFSS dynamic link component to it
circuit_design = Circuit.open_circuit("my_circuit.aedt")
dyn_link_comp = circuit_design.add_dynamic_link_component("HFSS_DL", "HFSS")

# Set up dynamic link options and create ports and excitations
dyn_link_comp.set_dynamic_link_options(ports_to_link=["Port1", "Port2"])
dyn_link_comp.create_ports_excitations()

# Create a setup and solve the circuit, pushing excitations to the HFSS model
setup = AedtConventionalStudy("Setup")
setup.set_solution_type("Transient")
setup.set_frequency("1 GHz")
setup.set_stop_time("100 ns")
setup.set_max_passes("50")
setup.set_excitation_control("Auto")
setup.push_excitations_to_hfss()
setup.solve()

# Start Mechanical and copy bodies from the HFSS project
mechanical_design = Mechanical.open_mechanical("my_mechanical.aedt")
mechanical_design.copy_bodies_from_hfss("HFSS", "Mechanical")

# Get losses from HFSS and assign the convection to Mechanical
hfss_losses = dyn_link_comp.get_losses()
mechanical_design.assign_convection(hfss_losses)

# Plot the model, solve and plot the thermal results, and release AEDT
mechanical_design.plot_model()
mechanical_design.solve()
mechanical_design.plot_thermal_results()

# Release AEDT
Hfss.release_aedt()
```