ES083

• Engineering Design Process


  A structured framework for efficient, consistent, and quality-driven execution of tasks and projects
• Engineering Design Process

  1. Define

  2. Ask

  3. Imagine

  4. Plan

  5. Prototype

  6. Test & Improve
• 2D


  Create 2D sketches on the software
• 3D


  Transform the initial 2D sketch into 3D objects
• Model


  Visualize the design by assembling the 3D parts. Check for interferences and tolerances
• Analysis


  Simulate the model. Create Analysis (Report, Assembly, Dynamics, Structural Analysis, Fluid Flow, Heat Transfer)
• Computer Aided Engineering


  Technology concerned with the use of computer systems to analyze CAD geometry, allowing the designer to simulate and study how the product will behave
• Computer Aided Design

  To assist in the creation, modification, analysis, and optimization of a design
• Computer Aided Manufacturing


  The technology concerned with the use of computer systems to plan, manage, and control manufacturing operations
• CAD/CAM/CAE System

  • Hardware (machines, input/output devices)
  • Software (User interface may evolve and improve but the fundamental functions will remain. Solid modeling, assembly modeling, simulations, analysis)
• 3D Design

  When designing a model using SOLIDWORKS, you can visualize it in three dimensions, the way the model exists once it is manufactured
• Component Based


  Any change you make to a part is reflected in all associated drawings or assemblies
• User Interface


  • Feature Manager Design Tree
  • Property Manager
  • Configuration Manager
  • Command Manager
• Sketch


  Creating a model usually begins with a sketch. From the sketch, you can create features. You can combine one or more features to make a part. Then, you can combine and mate the appropriate parts to create an assembly. From the parts or assemblies, you can then create drawings
• Origin


  In many instances, you start the sketch at the origin, which provides an anchor for the sketch
• Dimensions

  • Driving Dimensions (change the size of the model when you change their values)
  • Driven Dimensions (changes when you modify driving dimensions or relations in the model)
  • Fully Defined Sketches (All the entities in the sketch, and their positions, are described by dimensions or relations, or both. They appear in black)
  • Under Defined Sketches (You can determine what dimensions or relations you need to add to fully define the sketch. Under defined sketches appear in blue)
  • Over Defined Sketches (include redundant dimensions or relations that are in conflict. Over defined sketches appear in yellow)
• Relations


  Establish geometric relationships. The green symbols indicate that a relation exists between entities
• Features

  Once you complete the sketch, you can create a 3D model using features such as an extrude or a revolve
• Assemblies


  Combine multiple parts that fit together to create assemblies. Integrate the parts in an assembly using Mates
• Drawings


  • Drawing view (drawing or sketch w/ dimensions)
  • Drawing block (margins or same sa kuan sa chess to locate the parts)
  • Annotations (scale)
  • Drawing notes (notes sa drawing malamang)
  • Title block (name, title, date, etc.)
  • Revision block (revisions sa drawing is here)
  • Bill of Materials (BOM) (quantity sa parts)
• Drawing Views

  • Isometric drawings (show parts as three-dimensional)
  • Orthographic Projection (a way of representing a 3D object in 2 dimensions. Front view, Top view, Side view)
  • First angle projection (can be visualized by "tipping the box over")
  • Third angle projection (can be visualized by "unfolding the box")
  • Flat Pattern (shows the flattened view of a folded sheet metal part)
  • Detail View (small parts sa drawing kay i-zoom in)
  • Section View (parts nga di makita sa drawing like luyo)
  • Auxiliary Views (represent planes that are not horizontal or vertical)
• Drawing Dimensions


  • Size Dimensioning (Size of an object or parts)
  • Location Dimensioning (Distances between different parts or features of the part. Center to Center Distance, Center to Surface Distance, Surface to Surface Distance)
  • Aligned method (kung unsay projection sa drawing kay same sa projection sa dimension pagkabutang)
  • Unidirectional method (one direction ra ang pagbutang sa dimensions)
  • Baseline method