Design Procedure
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Transcript of Design Procedure
Design ProcedureSubject: DMESemester: 5th Division: FXBranch: 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
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
7-Step Design Process
1. Product Design Specifications (PDS)2. External Search (Research) 3. Internal Search (Brainstorming)4. Concept Evaluation and Selection5. Detail Design (Engineering) 6. Prototyping and Testing7. Documentation
Design Process OutcomesStep Outcome
Product Design Specifications PDS DocumentExternal Search (Research) List of existing related products
and technologiesInternal Search (Brainstorming)
A lot of solution ideas
Concept Evaluation / Selection Pros and Cons / Decision MatrixSelection of one idea to implement
Detail Design (Engineering) Determination of all details needed to build the product
Prototyping and Testing Comparisons to PDS targetImprovement recommendations
Documentation Final Design ReportBOM + Production DrawingsAll other reports
Detail Design (Engineering)
Lift and Drag Coefficients (as effected by ground promimity)
00.05
0.10.15
0.20.25
0.30.35
0 0.05 0.1 0.15
h/L
Coe
ffic
ient
Drag Coefficient
Lift Coefficient
More Abstract Engineering Less Abstract
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
Product Development Process
Concept Synthesis
PDS
Concept Evaluation
Candidate Design
Detail Design
Candidate Design
Release for Production
Prototyping
Detail Design
Parameter Design
Candidate Design
Release for Production
System-Level Design
Prototype Testing
Components
No Numbers
Numbers
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.
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
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
Customers People who define the PDS People who influence product success People you cannot ignore
Team
Company
(Internal)
Globe
(External)
Methods of setting targets
Some targets are specified by: Marketing Management Regulations /standards Users / buyers / retailers
Methods of setting targets
Benchmarking + parametric Studies Technology capability Field experts Experimentation Educated guesses Select ranges for targets from Barely acceptable to highly desirable
Thank You…