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55 Cards in this Set
- Front
- Back
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visualization
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ability to mentally picture things that do not exist
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communication
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a solution that can be communicated to others without ambiguity
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documentation
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detail drawings that were copied through a process called blue printing
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Engineering design
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one of the processes normally associated with the entire business; all stages of production
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process
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a series of continuous actions ending in a particular result
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product
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anything produced as a result of some process
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Ideation
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structured approach to thinking of the purpose of solving a problem.
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Refinement
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repetitive process used to test the preliminary design, make changes, and determine if the design meets the goals of the project.
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Implementation (ERP)
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Servicing, financing, marketing, etc
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Collaborative engineering
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creates the infrastructure and best environment for highly effective team collaboration.
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Technical Sketching
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rough drawing of main features of a product
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construction lines
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paths for the final straight lines
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Cartesian Coordinate system
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locates the position of geometric forms in 2D and 3D space
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locus
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a representations of all possible positions of a point
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Environment
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physical workspace to encourage visual ability
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sketching
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transferring of ideas/concepts onto paper/computer to quickly capture graphically
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drawing
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transferring of objects' shape/size/proportion onto paper/computer
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contour sketch
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sketch of only outer edge of something
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center line
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indicates symmetry, paths, of motion, centers of circles
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breakline
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shows where an object is "broken" to reveal interior or save space
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dimension and extension line
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used to indicate size/location of a feature
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section line
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represents surface cut by cutting plane
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cutting plane line
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shows location of cutting plane
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visible line
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show feature visible in current view
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hidden line
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represents feature that is obscured in the current projection
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Isometric drawing
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an orthographic projection (3D)
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Multiview drawing
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drawing that shows three faces of a shape
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oblique drawing
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x and y scales are identical, z scale is between 0 and 1, commonly
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diagramming
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captures ideas in visual format using symbols, words, lines, etc
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convex hall
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the lines of a contour sketch
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rectangular coordinates
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x, y, z
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cylindrical coordinates
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r, theta, zb
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spherical
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r, y, 0
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absolute coordinates
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cordinate values that always refer back to the origin
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relative coordinates
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coordinate values refer back to a previously defined feature
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world coordinate system (WCS)
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fixed; orientation relative to the model
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local coordinate system (LCS)
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system defined by the designers; oriented anywhere within WCS
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primitive
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building block used to create CAD models
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Node
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point; location (no size/shape)
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line
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no thickness; length and orientation
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constraits
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enforced until designer releases them
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conditions
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state of object/feature at given moment or location
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3D primitives
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objects embedded in 3D space
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single curved surface
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curves only in one direction (cone)
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double curved surface
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curves in two perpendicular directions (sphere)
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developable surface
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curved surface that can be "unrolled" onto a plane without distortion
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ruled surface
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generated by "sweeping" a line (generatrix) in 3D space
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sweeping
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changing location and orientation
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Boolean operations
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join, difference (cut), intersection
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kinematic constraints
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a profile (geometrically and parametrically) fully constrained embedded in a sketch plane has 3 degrees of freedom.
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Mate
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when 2 surfaces associated with different objects are set coplanar with directional vectors in opposing directions
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allign axis
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axes of 2 parts are constrained to be colinear
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projection theory
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theory used to create 2D representations called projections of 3D objects in a prescribed way
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third angle projection
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projection plane between observer and object
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first angle projection
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object between observer and projection plane (shadow)
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