Design Procedure

useful in design of machine elemnets

1. Design Procedure Subject : DME Semester: 5 th Division: FX Branch: Mechanical Prepared By (Roll no.): 1. Akash Ambaliya (03) 2. Randhir Chavda (23) 3 . Nirav Hadiya (43) Atmiya Institute of Technology & Science Gujarat Technological University

2. What is design procedure Design process is a collection of procedures and habits that help teams design better products . Designing is the process of making many decisions that converts a need into a hardware reality. Need Product

3. 7-Step Design Process Product Design Specifications (PDS) External Search (Research) Internal Search (Brainstorming) Concept Evaluation and Selection Detail Design (Engineering) Prototyping and Testing Documentation

4. Design Process Outcomes Step Outcome Product Design Specifications PDS Document External Search ( Research ) List of existing related products and technologies Internal Search ( Brainstorming ) A lot of solution ideas Concept Evaluation / Selection Pros and Cons / Decision Matrix Selection of one idea to implement Detail Design ( Engineering ) Determination of all details needed to build the product Prototyping and Testing Comparisons to PDS target Improvement recommendations Documentation Final Design Report BOM + Production Drawings All other reports

5. Detail Design (Engineering) More Abstract Engineering Less Abstract

6. Design Process Applies to Top-level decisions Applies to lower levels decisions Define requirements Search for existing ideas/technologies Brainstorm for solutions Pick a candidate Determine the details

7. Product Development Process Concept Synthesis PDS Concept Evaluation Candidate Design Detail Design Candidate Design Release for Production Prototyping

8. Detail Design Parameter Design Candidate Design Release for Production System-Level Design Prototype Testing Components No Numbers Numbers

9. Complexities of Developing a PDS Document Level-I: Goal is clear, “Design a X to do Y” specifications are known, priorities are known, no mass production concerns, IP issues not important, limited customer base Example: one-of-a-kind equipment.

10. Complexities of Developing a PDS Document Level-II: Goal is specific “Design a X to do Y”, Specifications are unknown, Priorities are unknown, Mass production concerns, IP issues are important, expanded customer base Example: Most consumer products

11. Complexities of Developing a PDS Document Level-III: Goal is unclear, “Design ? To do ? There is a general statement of need Not easy to get to: “Design X to do Y” Example: Oceans are rising

12. Customers People who define the PDS People who influence product success People you cannot ignore Team Company (Internal) Globe (External)

13. Methods of setting targets Some targets are specified by: Marketing Management Regulations /standards Users / buyers / retailers

14. Methods of setting targets Benchmarking + parametric Studies Technology capability Field experts Experimentation Educated guesses Select ranges for targets from Barely acceptable to highly desirable

15. Thank You…