Rear Assembly: Swingarm Configuration 1

#
#                                  *U_SPRING_MOUNT
#                                 /                   \
#                                .                     .
#                               /                       \
#        /--------------       .         ___________-----* SA_LEFT
#       /                     /         /              /⁻\\
#      /                 ___ .________/                /// \
#     / sa_left_outer  /    /                               \
#    /     *----------/    *               ___________-------* SA_RIGHT
#    \      \            l_spring_mount   /                 /⁻\\
#  wheel center*            _____________/                  /// .
#     \       \            /                                     \
#      \       *----------/
#       \   SA_right_outer
#        \
#         \
#          \---*----------
#             Wheel center ground reference
#

Points Name	Description	Type
wheel center	Center of the Wheel	mobile
SA RIGHT	Swingarm Right	fixed
SA LEFT	Swingarm Left	fixed
sa right outer	Swingarm right outer	mobile
sa left outer	Swingarm left outer	mobile
U SPRING MOUNT	Upper spring mount	fixed
l spring mount	lower spring mount	mobile

Import necessary libraries

import numpy as np
from pymycar.Cad.geometric_forms import simple_spring
import pyvista as pv

from pymycar.Cad.MotorCycle.rear_assembly import swingarm_cad_base
from pymycar.Cad.MotorCycle.frame import frame_cad_base
from pymycar.Cad.MotorCycle.rear_assembly import rear_suspension_cantilever
from pymycar.Cad.MotorCycle.front_assembly import fork_front_suspension

data = {
    "SA_RIGHT": np.array([0.0, -100.0, 0.0]),
    "SA_LEFT": np.array([0.0,   200.0,  0.0]),
    "sa_right_outer": np.array([-500.0, -125.0, -0.0]),
    "sa_left_outer": np.array([-500.0,   125.0, -0.0]),
    "wheel_center": np.array([-500.0,   0.0,    -0.0]),
    "U_SPRING_MOUNT": np.array([-100.0, 0.0, 300.0]),
    "l_spring_mount": np.array([-250.0, 0.0, 0.0]),
}


swingarm = swingarm_cad_base(data, index=None)
wheel = pv.Cylinder(center=data["wheel_center"], direction=(0, 1, 0), height=50, radius=200)
suspension = rear_suspension_cantilever(data, index=None)

# from pymycar.Cad.geometric_forms import spring, simple_spring
# suspension = simple_spring(data["U_SPRING_MOUNT"], data["l_spring_mount"][None])
plotter = pv.Plotter()
plotter.add_mesh(swingarm, color="blue"),
plotter.add_mesh(wheel, color="black", opacity=0.5)
plotter.add_mesh(suspension, color="green")


# Add points to the plot
for name, coord in data.items():
    plotter.add_mesh(pv.Sphere(radius=5, center=coord), color='red')

# Add text annotations
for name, coord in data.items():
    plotter.add_point_labels([coord], [name], point_size=20, font_size=30, text_color='black', always_visible=True)


plotter.show()

Static Scene

Interactive Scene