Engineering Design and Prototyping Quiz

Course Information

• Course Code: Not specified
• Course Name: Engineering Design and Prototyping
• Program Name: B.Tech First Year
• School: Mechanical Engineering
• Institution: Galgotias University
• Course Division: Mechanical Design Division

Introduction to Product Design

• Product design deals with converting ideas into physical products to meet human needs.
• Product development involves a series of activities from identifying market opportunities to delivering the final product.

Objectives

• Gain knowledge of product design concepts.
• Learn computer-assisted modeling of solid components.

Product Design Lifecycle

• Concept: Initial idea generation
• User Research: Understanding user needs & preferences
• Feasibility & Proof of Concept: Assessing viability and functionality of concepts
• Architecture & Design: Design of the product’s structure and form
• Support: Developing the essential design specifications
• Manufacturing: Creation of production processes
• Test & Release: Testing of prototypes and approval for final product release
• Implementation: Putting the product into production.

Design by Innovation

• Innovative design solves design problems using organized and logical approaches.
• There are different approaches to innovative design: creative design routes and engineering design.
• Innovation is about new ideas that are not just improvements of existing concepts.
• Design by innovation is a continuous evolving process that fits market needs

Design by Evolution

• Designs evolve over time.
• The pace of technological change has reduced the risk of mistakes.
• Analytical approaches to designs are not as important.

Evolution of Various Products

• Shows examples of technologies evolving like bicycles, automobiles and mobile phones.
• Demonstrates how the designs (and models) of these products have changed over time.

Morphology and Process of Design

• Recognition of a Need: Starting point for product development
• Specifications and Requirements: Defining the needed product features
• Feasibility Study: Examining viability of design solutions
• Creative Design Synthesis: Developing multiple design ideas/options
• Preliminary Design and Development: Creating initial prototypes for tests
• Detailed Design: Refining designs and specifications based on earlier stages
• Prototype Building and Testing: Testing and refining prototypes
• Design for Production: Determining production processes and requirements
• Product Release: Packaging the product for distribution

Engineering Graphics in Design Process

• Shows the steps involved in using engineering graphics in the design process
• Visualization: Mentally picturing the design
• Sketches: Recording initial design ideas
• Geometric Models: Building 3-D representations of the design
• Detail Drawings/3D Model: Accurate representations for manufacturing purposes
• Communication: Ensuring clarity of the design to others
• Documentation: Creating permanent records of the design solution

Drawing/Graphics vs. Engineering Drawing/Graphics

• Engineering drawing uses universal language for engineers.
• Provides all necessary information for manufacturing, including dimensions, materials, construction methods and assembly.
• Engineering drawings are crucial for any (man-made) product and can't be replaced

Units of Measure

• The International System of Units (SI) is used, primarily using millimeters (mm).
• All dimensions on a drawing should be in the same unit.
• A note specifying that all dimensions are in mm should be included.

Drawing Standards

• Standards provide guidelines for technical drawings to ensure consistency and understanding across different parties.
• Different countries use different standard codes, e.g. ANSI (USA), JIS (Japan), BS (UK), DIN (Germany).

Computer Assisted Engineering Drawings (CADD)

• Computer-aided design and drafting (CADD) is a technology that automates manual drafting processes.
• It involves creation of 2D & 3D models, which is used for design, technical documentation and replaces traditional manual drafting.

Engineering Design Models

• Different examples of products (bikes, packaging machines, engine components).
• Engineering models provide visualizations and representations of design concepts.

Manual Drawing Vs Computer Assisted drawing

• Data Storage and Accessibility: CAD allows for easy and accessible storage electronic storage.
• 3D Cad Models: CAD readily creates 3D models; drawing by hand is limited to 2D.
• Revision: CAD allows for easy revisions; hand drawings require more effort.
• Accuracy: CAD generally produces higher accuracy.
• Speed and Time: CAD is faster; drawings by hand is time consuming.
• Better Quality Designs: CAD leads to consistent and high-quality designs, especially for intricate components.

Summary

• Engineering drawings are essential for converting ideas and concepts to reality.
• Standards and conventions for engineering drawings are vital to eliminate ambiguity.
• Modeling techniques like CAD provide visual 3D representations of products.

Questions

• How to explain engineering drawings?
• Why are computational techniques needed to design a physical component?

References

• Engineering Drawing by N. D. Bhatt and V. M. Panchal
• Engineering Graphics by K. C. John
• NPTEL

This quiz covers the fundamentals of product design and the prototyping process in engineering. It focuses on the product design lifecycle, including concept generation, user research, and manufacturing. Test your knowledge on essential design principles and modeling techniques.