Mae 1351 exam stuvia 2023 - Study guides, Class notes & Summaries

Hierarchy - ANSWER-The parent-child relationships between instances in an assembly. Base Instance - ANSWER-The one fixed instance within an assembly. Assembly Constraints - ANSWER-Used to establish relationships between instances in the development of a flexible assembly model. Components - ANSWER-References of object geometry use in assembly models Instances - ANSWER-Copies of components that are included within an assembly model. Subasaembly - ANSWER-A logical grouping of assemb...

What are some problems with pictorials? - ANSWER-the distortion of angles, the distortion of true lengths, the distortion of Internal measurements, the distortion of curves Then the general rule for presenting the object becomes: - ANSWER-"Start with the preferred configuration; then add or subtract whatever views are necessary to best show all of the geometry." An axonometric drawing refers to three types of pictorial drawings: - ANSWER-isometric, dimetric, and trimetric drawings The...

Stages of the Design Process - ANSWER-1)Identify 2)Conceptualize 3)Refine 4)Analyze 5)Prototype 6)Document 7)Produce 8)Life Cycle MNUEMONIC DEVICE????: ***IC RAP DPL (Dr.Pepper Lite) Problem Identification (Design process, STEP 1) - ANSWER-the design engineer must address questions and answers from the customer's/client's perspective and from the engineer's perspective. -may involve generating new ideas, or improving an existing design -may use MARKET SURVEY to determine spe...

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...

Total runout (runout tolerance)[two arrows] - ANSWER-3D control for rotating parts relative to a datum axis. (cylindrical surface = controls circularity, straightness, taper, concentricity, and surface profile; flat surface = controls wobble, perpendicularity, and flatness) Basic dimensions (those with a box around them)... - ANSWER-are theoretically exact and locate the perfect position of features from clearly identified datums The feature control frame - ANSWER-contains the geometric ch...

sawing - ANSWER-a multitoothed cutting blade is pulled through the material Qualities of sawing - ANSWER-Pros: -Quick Cons: -precision -quality lathe - ANSWER-the workpiece is rapidly rotated about a single axis turning - ANSWER-Circumferential grooves and screw threads are made using this process, as are stepped, tapered, and rounded shaft boring - ANSWER-Removal of material on the inside of the workpiece drilling - ANSWER-a rapidly spinning cutting tool called a drill bit is...

center of mass - ANSWER-origin of the coordinate axes for which the moments are zero moments of inertia - ANSWER-measure of an object's ability to resist rotational acceleration to rotate about an axis radii of gyration - ANSWER-distance from an axis where all of the mass can be concentrated and still produce the same moment of inertia density - ANSWER-mass per unit volume for a given material FEA (Finite Element Analysis) - ANSWER-advanced computer-based design analysis technique t...

Geometric Dimentioning and Tolerancing - ANSWER-specifies size, location, orientation, shape, and form of features Rectangular tolerance zones when locating cylindrical mating features are characteristics of - ANSWER-Plus/minus tolerancing Flatness - ANSWER-Trapezoid Parallelism - ANSWER-// Perpendicularity - ANSWER-_|_ Profile of a Line - ANSWER-Arc Profile of a surface - ANSWER-Semi-circle True Position - ANSWER-Crossed Circle RC - ANSWER-Running and Sliding Fit FN -...

What is the accepted national standard in the United States for dimensioning and tolerancing? - ANSWER-ANSI Y14.5 Dimension - ANSWER-*A numerical value expressed in appropriate units of measure and used to define the size, location, geometric characteristic, or surface texture of a part or part feature. Arrowhead - ANSWER-A small triangle at the end of dimension lines and leaders to indicate the direction and extent of a dimension (see Figure 15.10). Dimension Line - ANSWER-A thin, dar...

Components - ANSWER-Objects that make up a system Instances - ANSWER-Copies of an object within a system Subassembly - ANSWER-A grouping of components that serves a single purpose Associativity - ANSWER-Changing apart of a geometry of a part, the components will change by the same amount, increases PC effectiveness Hierarchy - ANSWER-Organization or structure of a system Parent-child relationship - ANSWER-Associations between components and subassemblies are often called Base I...