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Jan 29, 2025
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Allowing for Support mass and stiffness for Bearings #1143
robert-varley
started this conversation in
General
Replies: 1 comment 1 reply
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|
Hi @robert-varley! The n = 6
shaft_elem = [
rs.ShaftElement(
L=0.25,
idl=0.0,
odl=0.05,
material=steel,
shear_effects=True,
rotary_inertia=True,
gyroscopic=True,
)
for _ in range(n)
]
disk0 = rs.DiskElement.from_geometry(
n=2, material=steel, width=0.07, i_d=0.05, o_d=0.28
)
disk1 = rs.DiskElement.from_geometry(
n=4, material=steel, width=0.07, i_d=0.05, o_d=0.28
)
disks = [disk0, disk1]
stfx = 1e6
stfy = 0.8e6
bearing0 = rs.BearingElement(0, kxx=stfx, kyy=stfy, cxx=0, n_link=7)
bearing1 = rs.BearingElement(6, kxx=stfx, kyy=stfy, cxx=0)
bearing2 = rs.BearingElement(7, kxx=stfx, kyy=stfy, cxx=0)
bearings = [bearing0, bearing1, bearing2]
pm0 = rs.PointMass(n=7, m=30)
pointmass = [pm0]
rotor1 = rs.Rotor(shaft_elem, disks, bearings, pointmass)🔗 https://ross.readthedocs.io/en/latest/user_guide/tutorial_part_1.html#creating-a-rotor-model |
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1 reply
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Ah, yes, that's extremely helpful, thank you. Appreciate your prompt response. |
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It is possible to connect an additional element to a bearing to represent any supporting structure so the bearing is not actually connected to ground, except via an intermediate element with mass and stiffness defined?
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