Cylindrical
Joint allowing 1 translational and 1 rotational degree of freedom about or along a common axis
Description
Connections
Parameters
See Also
A cylindrical joint is shown in the diagram below with the two bodies that it connects. A cylindrical joint allows the two connected frames to translate along and rotate about a single common axis; this joint type prevents all of the other relative motions of the two frames. In the diagram below, the joint displacements, s and θ, represent the relative translation and rotation, respectively, of the end frame, x2y2z2,with respect to the start frame, x1y1z1. In this example, both x1 and x2 remain parallel to the joint axis during the motion of the two bodies.
Name
framea
Joint inboard frame
frameb
Joint outboard frame
Symbol
Default
Units
Modelica ID
e^1
0,0,1
Axis along and about which the joint allows translational and rotational motion, expressed in the inboard frame
RotTranAxis
ICs,v
Ignore
Indicates whether MapleSim ignores, tries to enforce, or strictly enforces the translational initial conditions
MechTranTree
s0
0
m
Initial displacement of the joint at the start of the simulation, expressed along the e^1axis
InitPos
v0
ms
Initial velocity of the joint at the start of the simulation, expressed along the e^1axis
InitVel
ICθ,ω
Indicates whether MapleSim ignores, tries to enforce, or strictly enforces the rotational initial conditions
MechRotTree
θ0
rad
Initial rotation of the joint at the start of the simulation, expressed about the e^1axis
InitAng
ω0
rads
Initial angular velocity of the joint at the start of the simulation, expressed about the e^1axis
InitAngVel
Joints and Motions
Multibody Overview
Download Help Document
