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Assembly Modeling Questions
IED Unit 7
50
Engineering
Not Applicable
04/02/2004

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Term
Base component
Definition
The first component placed in an assembly should be a fundamental part or sub-assembly, such as a frame or base plate, on which the rest of the assembly is built.
Term
Assembly browser
Definition
This function presents the content of an assembly in a hierarchy. Components are listed in the order in which they are placed in the assembly.
Term
Browser hierarchy
Definition
This describes a circumstance in which components are listed in the order in which they are placed in the assembly.
Term
True
Definition
True or false? The panel bar contains current command icons or command names depending on how it is configured.
Term
Create component tool
Definition
This function allows the production of in-place parts in assembly.
Term
Patterning components
Definition
This function duplicates one or more components and arranges the resulting occurrences in a circular or rectangular arrangement.
Term
Replace component
Definition
This operation is done in the design process when you need to exchange one or more components in an assembly with an improved version.
Term
Grounded part
Definition
The first component placed in an assembly, such as a frame or base plate, on which the rest of the assembly is built. This is also a part or sub-assembly for which all six degrees of freedom have been removed relative to the assembly origin.
Term
Tool Bar
Definition
The portion of the user interface that appears under the title bar in the graphics window. It contains icon buttons for tools that are used throughout the model software.
Term
Icon
Definition
An image of a single command function in pictorial form.
Term
Patterning
Definition
A two- or three-dimensional representation of an object. This object represents a wireframe, hidden edge, or shaded display.
Term
Component
Definition
An individual part of a model.
Term
Assembly model
Definition
This is a group of items in which two or more components have been constrained.
Term
External component
Definition
This object has been created as a separate part file outside of the current assembly model.
Term
Internal component
Definition
This object has been created as a separate part file inside of the current assembly model.
Term
Move button
Definition
This action button on the assembly toolbar will allow the dragging of individual components in any linear direction in the viewing plane.
Term
Rotate button
Definition
This action button on the assembly toolbar will revolve an individual component about a specified point on or near the component.
Term
Copy button
Definition
This function will duplicate a component as many times needed and in any direction without regard to any pattern.
Term
Constrained move
Definition
This kind of move honors previously applied geometric rules. That is, the selected components, move together in their current positions.
Term
Unconstrained move button
Definition
This kind of move is simply a temporary "get out of the way" move.
Term
Assembly constraint
Definition
These are rules that remove the degrees of freedom between two selected components, positioning them relative to one another.
Term
True
Definition
True or false? The flush constraint aligns components adjacent to one another with faces flush. Positions selected faces, curves, or points so that they are aligned with surface normals pointing in the same direction.
Term
False
Definition
The tangent constraint causes only curves to be tangent to other curves.
Term
Angle
Definition
This assembly constraint positions edges or planar faces on two components at a
specified number of degrees from each other.
Term
Editing constraints
Definition
This process describes the modifying of constraints in the browser.
Term
Insert
Definition
This constraint selects geometry on two components to constrain together. An individual can specify one or more curves, planes, or points to define how pieces fit together.
Term
Mate
Definition
This constraint position selects faces normal (perpendicular) to one another with faces coincident.
Term
Create component toolbar
Definition
This toolbar contains the following functions: tools to sketch geometry, tools to add finishing touches to existing features, tools to add multiple instances of existing features, tools to create or add predefined features to a model, tools to create work planes, work axes, or work points.
Term
Design element tool
Definition
This tool allows you to view the catalog of part library elements, create part library elements, and insert part library elements.
Term
True
Definition
True or false? The insert design element tool allows the placement of pre-existing elements from a file into an assembly.
Term
Create design element toolbar
Definition
This tool uses existing features to produce a design element.
Term
View catalog
Definition
This function allows the review of a list of available design elements.
Term
True
Definition
True or false? A collection of pre-drawn, commonly used items, such as fasteners, springs, bearings, gears, shafts, cams, and pulleys, that can be inserted into an assembly is known as a design element catalog or a part library.
Term
True
Definition
True or false? A group of components that are constrained to act as one in a larger assembly is known as a sub-assembly.
Term
False
Definition
True or false? When designing a sub-assembly, component groups that repeat in as assembly cannot be used to create a valid sub-assembly.
Term
True
Definition
True or false? Combinations of standard parts that are common to many external assemblies can be used to create a valid sub-assembly.
Term
True
Definition
True or false? Components that combine to perform a common function in as assembly may be defined as a valid sub-assembly.
Term
Drive constraint
Definition
The simulation of mechanical motion by moving a constraint through a sequence of steps.
Term
Range of motion
Definition
The path a component or linkage travels when a drive constraint is applied.
Term
Collision detection
Definition
The checking for interference among components.
Term
True
Definition
True or false? Parameters are used to define the size and shape of features and to control the relative
positioning of components within assemblies.
Term
True
Definition
True or false? Equations are used to define relationships between parameters.
Term
Equations
Definition
An expression in which symbols and formulae are used to represent mathematical relationships.
Term
True
Definition
True or false? An existing part can be useful in more than one assembly, as long as its size and shape can adapt.
Term
False
Definition
True or false? Adaptively allows features to resize and change shape without constraining them to other components.
Term
True
Definition
True or false? Parts created in place and parts placed from part files can both be defined as adaptive.
Term
False
Definition
True or false? In the early stages of assembly design, some requirements are known while others are subject to change. Fully dimensioned and constrained parts can be useful because they adjust to design changes.
Term
True
Definition
True or false? When you place a part in an assembly, its size is fixed unless you define the part as adaptive in the assembly.
Term
True
Definition
True or false? When you constrain an adaptive part to fixed features on other components, under-constrained features resize when the assembly is updated.
Term
True
Definition
True or false? In general, adaptive parts are used when an assembly design is not fully defined, and a part is required in a particular position but its final size is not known.
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