_______ is a named quantity whose value can be changed. Its dimension control size
and position of model. It can also add relationships between the others. - ANSWER-
Parameter
________ is a data structure employed describing solid models. It stores the model data
in terms of the solid primitives and Boolean operations that used to combine them. -
ANSWER-Constructive Solid Geometry (CSG)
________ is a subject of CAD that uses software to assist in the conceptual design of
new products. - ANSWER-Computer Aided Industrial Design (CAID)
_________ can be determined as a set of decision-making processes and activities that
are used to determine the form of a product, component, system, or process, given the
functions desired by customer. - ANSWER-Engineering Design
___________ is section view of symmetrical objects formed by passing the cutting
plane in such a manner so as to show both the interior and exterior of the object. -
ANSWER-Half Section
___________ strive to minimize the late- occurring design changes by formalizing the
relationship between design and manufacturing - ANSWER-DFM
____________ are used to represent symmetry and paths of motion and to mark
centers of circles and axes of symmetrical parts, such as cylinder and bolts. -
ANSWER-Center Lines
3D Printer - ANSWER-Based on inkjet printing
Provides full color printing
A __________ is characterized by control polygon, which bounds the curve, and control
points. - ANSWER-Bezier Curve
A ___________ can be used to represent analytic curves like straight lines, circles, and
other conics, it is widely adopted by surface modeling programs to model curves and
surfaces. - ANSWER-Nurbs Curve
A ___________ is consequently referred to as a "Piecewise parametric polynomial
curve." - ANSWER-Spline Curve
A dictionary definition of _________ is to shorten by proportionately contracting in the
direction of depth so that the illusion of projection or extension in space is obtained. -
ANSWER-Foreshorten
,B-Rep
(Boundary Representation) - ANSWER-Stores the boundaries of the solid in the
database, along with info. regarding how these entities are connected.
B-Rep of simple solid model - ANSWER-book
B-Rep represent of face - ANSWER-"Polyhedron"
BIM
(Building Information Modeling) - ANSWER-A model-based technology linked with a
database of project information.
Boolean Operations (3) - ANSWER-union, subtraction, intersection
CAD downstream applications - ANSWER-CAM-CNC, CAE
CAE
(Computer Aided Engineering) - ANSWER-Sidekick of CAM
CAID
(Computer Aided Industrial Design) - ANSWER-(cars) make sure everything works, but
still looks nice
CAID
(Computer Aided Industrial Design) - ANSWER-A subset of CAD that uses software to
assist in the conceptual design of new products.
CAM
(Computer Aided Manufacturing) - ANSWER-The list of directions to make a part
CAPD
(Computer Aided Product Design) - ANSWER-good structure more mechanical
CFD
(Computation Fluid Dynamics) - ANSWER-Analysis on system before parts are made
Characteristic of assembly modeling? - ANSWER--overcome dumb solids
-easy to modify
-manufacturing/geometric information are stored
-dimensions are parametric
-model history is available
-assembly environment
Characteristics of NURBS Surface - ANSWER-1.) Operations can be applied by
applying them to their control points
, 2.) Offer one common mathematical form for both standard analytical and free form
shapes.
3.) Provide flexibility to design a large variety of shapes
4.) Reduce the memory consumption when storing shapes
5.) Be evaluated quickly
Characteristics of Parametric Modeling - ANSWER-Overcome dumb solids
Easy to Modify
Manufacturing/Geometric info. kept
Dimensions are parametric
Model history is available
Assembly environments
CNC
(Computer Numerical Control) - ANSWER-use of computers to control machine tools.
Common file format for RP machines - ANSWER-STL file, external boundary of an
object represented by a mesh of triangles
Constrains - ANSWER-Mathematical requirements imposed on the geometry of a 3D
model.
CSG
(Constructive Solid Geometry) - ANSWER-Stores the model data in the terms of solid
primitives and the Boolean operations that are used to combine them.
Definition and Purpose of Target Specification - ANSWER-The Target Specification is
identified form customer and product needs and includes metrics which satisfy one or
more customer needs. There are then ideal and marginally acceptable target values
given to each metric.
Definition of CAM (Computer Aided Manufacturing) - ANSWER-connection between
machining and CAD (design and manufacturing)
Definition of CFD (Computation Fluid Dynamics) - ANSWER-fluid and thermal flow
analysis
Definition of DFM (Design for Manufacturing) - ANSWER-Aims to improve the
fabrication of individual parts
Definition of Dimension - ANSWER-a numerical value used to define the size, location,
geometric characteristic, or surface texture of a part or feature
Definition of Engineering Design - ANSWER-a set of decision-making processes and
activities that are used to determine the form of a product, component, system, or
process, given the function desired by the customer