Non-Glossary
Following is a list of keywords related to the course. It would be a glossary except there are no definitions. :)
mechanism
degree of freedom
kinematics
underactuation
DC motor
servomotor
hobby servo
stepper motor
bearing
kinematics
An rigid body unconstrained in space can be described as a ‘free joint’ which
imposes no constraints. It has six degrees of freedom: three translational
freedoms, and three spatial rotational freedoms. There are several common
numerical representations of the rotational freedoms:
A pair of rigid bodies may be constrained by physical contact (e.g. a joint
bearing) to form a Kinematic pair.
In particular, a ‘lower pair’ is an idealized joint between two rigid bodies.
Following are all the lower pairs:
DOF |
joint |
|---|
1 |
wheel, hinge, pivot, “revolute pair” |
1 |
slider, “prismatic joint” |
1 |
screw |
2 |
cylindrical |
3 |
planar |
3 |
ball and socket, “spherical” |
control theory
system
state
velocity
trajectory
open-loop
closed-loop
feedback
sensor
model
stability
passive stability
SolidWorks Parametric CAD
parametric model
design intent
part
assembly
Parts and Sketches
plane
sketch (2D)
feature
feature tree
relation
extrusion
rollback
dimension
Sketch Geometry
lines
circles
ellipses
polygons
fillet
chamfer
reference features
centerline
construction line
point
Sketch Relations
horizontal
vertical
dimension
coincident
collinear
dimension
symmetric
concentric
perpendicular
parallel
coradial
Assemblies
mate
fixed, float
in-context feature
component pattern
mechanical components
clevis pin
cotter pin
bushing
shoulder screw
ball bearing
machine screw
washer
self-tapping sheet metal screw
standoff
spacer
dowel pin
wire tie
spring
O-ring
shaft
shaft clamp
retaining ring
gear
timing belt
pulley
linear bearing
signal processing
analog to digital converter (ADC)
continuous time
discrete time
sampling
quantization
bandwidth
calibration
filter
frequency response
transfer function
Fourier transform