UTA MAE 1351 Exam 3 Question with Verified
Correct Answers
boundary conditions
The constraints and loads
added to the boundaries of a finite element model.
center-of-mass (centroid):
The origin of the
coordinate axes for which the first moments are zero.
constraint
A boundary condition applied to a
finite element model to prevent it from moving
through space.
density
The mass per unit volume for a given material.
displacement:
A change in the location of points on
an object after it has been subjected to external loads
Finite Element Analysis
An advanced computer based
design analysis technique that involves subdividing
an object into several small elements to determine
, stresses, displacements, pressure fields, thermal distributions,
or electromagnetic fields.
mechanical stress
Developed force applied per unit
area that tries to deform an object.
mesh
The series of elements and nodal points on a
finite element model.
moment-of-inertia
The measure of an object's ability
to resist rotational acceleration about an axis
radius-of-gyration
The distance from an axis where
all of the mass can be concentrated and still produce the
same moment-of-inertia.
reverse engineering
: A systematic methodology for
analyzing the design of an existing device.
What are some of the mass properties that can be
computed for a CAD model?
Density, Mass, Volume, Surface area, Center-of-mass or centroid, principle aces-of-inertia
and principle moments-of0inertia, radius-of-gyration
Correct Answers
boundary conditions
The constraints and loads
added to the boundaries of a finite element model.
center-of-mass (centroid):
The origin of the
coordinate axes for which the first moments are zero.
constraint
A boundary condition applied to a
finite element model to prevent it from moving
through space.
density
The mass per unit volume for a given material.
displacement:
A change in the location of points on
an object after it has been subjected to external loads
Finite Element Analysis
An advanced computer based
design analysis technique that involves subdividing
an object into several small elements to determine
, stresses, displacements, pressure fields, thermal distributions,
or electromagnetic fields.
mechanical stress
Developed force applied per unit
area that tries to deform an object.
mesh
The series of elements and nodal points on a
finite element model.
moment-of-inertia
The measure of an object's ability
to resist rotational acceleration about an axis
radius-of-gyration
The distance from an axis where
all of the mass can be concentrated and still produce the
same moment-of-inertia.
reverse engineering
: A systematic methodology for
analyzing the design of an existing device.
What are some of the mass properties that can be
computed for a CAD model?
Density, Mass, Volume, Surface area, Center-of-mass or centroid, principle aces-of-inertia
and principle moments-of0inertia, radius-of-gyration
