MAE 1351 Exam 2 Study Guide with Complete Solutions(Rated A)

In the creation of solid models, computer-generated geometry was referred to as parts, features, or objects; however, the objects that make up a system are referred to as - ANSWER-components In assembly modeling, the copies of a component within the system are called - ANSWER-instances A ___________is a grouping of components that serves a single purpose within the overall assembly - ANSWER-subassembly Why not just put multiple copies of the abutment part within the assembly? Why do you have to learn about components and instances? Why are subassemblies that are made up of instances and that are instances themselves important? The main reasons for the changes are to - ANSWER-improve assembly modeling efficiency and to save computer storage space improve assembly modeling efficiency and to save computer storage space __________ means that if you change the geometry of a part, the component and all instances of it also will change by the same amount - ANSWER-associativity Assembly models are easier to work with when they are organized in a logical manner. An assembly is usually thought of as a composition of several smaller subassemblies, each of which may consist of other subassemblies or individual components. The organization or structure of a system is referred to as its - ANSWER-hierarchy The first thing you want to do after setting up your system hierarchy is to orient the instances so they are properly located in space relative to one another. To do that, you need to select one component to serve as the - ANSWER-base instance. As with objects and features, the associations between components and subassemblies are often called - ANSWER-parent-child relationships hen creating parts, you used constraints to establish geometric and dimensional relationships between 2-D entities or features. Thus, you constrained two lines to be parallel or perpendicular to each other. Or you constrained the diameter of a circle to be a specific size and its center to be located given distances from lines on the drawing or from edges on an object. In assembly modeling, you can apply ____________ between