LECTURE - 9 Introduction to Machine Design
Objective of the Lecture:
Classifications of Machine Design
- Definition : Machine Design
- Classification Of Machine Design
Recognizing the need is the primary condition for design. - Charles Eames
Definition: Machine Design provide solutions and establishes innovative, improved and new machine designs by improving the existing designs.
Generally, the improved machine design is crafted and designed to satisfy the recognised need of the client. It should also needed to be more economical and efficient than the existing machine design, keeping key factors as the overall cost of production and operation.
Description of the machine used to be the final outcome for the design processes, which generally used to be in the form of drawings and their individual components. In preparation of such drawings, factors such as availability of resources including capital, labour, material and overall cost must be take care off, which results in successful completion of those designs in actual reality.
It is must to have knowledge in Engineering Mechanics, Engineering Drawing, Theory of Machine, Strength of Material and Workshop Processes to successful design a machine component.
- Adaptive Design: In such designs, the designer's used to adapt and minor modify the existing designs of the product. These designs generally doesn't require special knowledge or skill and can be worked out by designers of ordinary technical training.
- Development Design: In such designs, the designer used to modify the existing design, yet with a new and innovative concept by adoption of new technique, material or manufacturing method. These designs do require skilled designers with an innovative and scientific approach.
- New Design: These kind of designs require designers with ultimate potential, innovative mind and a lot of research for the particular design.
- Rational Design: Such designs rely upon the mathematical formulae of principle of mechanics.
- Empirical Design: Such designs depends upon the empirical relations and formulae based on the practice and past experiences.
- Industrial Design: Such designs are based upon the production aspects to manufacture any machine component in the industry.
- System Design: Design of any complex mechanical system such as motor car falls under this classification.
- Computer Aided Design: Such designs utilises the computer systems to assist in the creation, modification, analysis and modification of a design.
LECTURE RELATED QUESTIONS:
1. Define 'Machine Design'.
2. Classify the Machine Design and briefly define each of them.
3. Write down the differences in between the Adaptive Design, Development Design and New Design.
4. Write down the differences in between the Rational Design, Empirical Design and Industrial Design.