session 2010/2011 2 smc4523 automotive engineering design synthesis
DESCRIPTION
Session 2010/2011 2 SMC4523 AUTOMOTIVE ENGINEERING DESIGN Synthesis Generating and developing design solutions. Assoc. Prof. Dr. Kamarul Baharin Tawi Dr. Nurulakmar Abu Husain. A structured approach to overall design process comprises three phases : . SMC 4523. Formulation. Synthesis. - PowerPoint PPT PresentationTRANSCRIPT
Session 2010/2011 2
SMC4523AUTOMOTIVE ENGINEERING DESIGN
SynthesisGenerating and developing design solutions
Assoc. Prof. Dr. Kamarul Baharin TawiDr. Nurulakmar Abu Husain
A structured approach to overall design process comprises three phases:
Formulation •Identifying needs/requirements and specifications of the design problem. •The result of design formulation is sometimes referred to as the design brief
or, more simply, the definition of the design problem.
Synthesis •Identification of one or more design solutions consistent with the requirements defined during formulation and any additional requirements identified during synthesis.
Evaluation •Interpreting a partially or completely specified design description for conformance with expected performances.
•This phase of the design process often includes engineering analysis.
Ref: Maher, M. L. (1990) Process Models for Design Synthesis, AI Magazine Vol. 11 No. 4 pp. 49-58
Week Lecture/Studio Topic / Content
1 1 - 2Introduction & Project Description
Design needs and requirementsIdentifying and establishing needs and requirements
2 - 3 3 - 6Design needs and requirements (cont.)
Developing problem statementsEstablishing design specifications
4 - 7 7 - 14 SynthesisGenerating and developing design solutions
8 MID SEMESTER BREAK
9 - 11 15 - 20Analysis
Detail design analysis(functional, strength, reliability, safety and cost)
12 -13 21 - 24 Evaluation & optimisationImproving details
14 - 15 25 - 28 Report and Presentation
16-18 REVISION WEEK AND FINAL EXAMINATION
Formulation
Synthesis
Evaluation
SMC 4523
SYNTHESIS
Synthesis: creative act or process of generating ideas for design proposals : finding possible solutions for subproblems and building up
complete designs from these : combining, mixing, compounding of anything – whether ideas or
beliefs, substances or parts, activities or processes – into a new whole
Commonly considered the hallmark of design
Without ideas, there is nothing to analyse or to choose between!!
Senses of synthesis
Sunthesis(Collection)
Suntithenai(To put together)
Ref: Chakrabarti, A., Engineering design synthesis: understanding, approaches, and tools.
SCAMPER
SCAMPER
Substitute
Combine
Adapt
Magnify/Modify
Put to other purposes
Eliminate
Rearrange/Reverse
SYNTHESIS
Synthesis: creative act or process of generating ideas for design proposals : finding possible solutions for subproblems and building up
complete designs from these : combining, mixing, compounding of anything – whether ideas or
beliefs, substances or parts, activities or processes – into a new whole
Commonly considered the hallmark of design
Without ideas, there is nothing to analyse or to choose between!!
Senses of synthesis
Sunthesis(Collection)
Suntithenai(To put together)
Ref: Chakrabarti, A., Engineering design synthesis: understanding, approaches, and tools.
SCAMPER
Generation of design alternatives and selection of better ones based on incomplete information
SYNTHESIS appears repeatedly throughout a design process
Senses of synthesis
ABSTRACT REPRESENTATION
REFINED SOLUTIONS
BRAINSTORMING!!
BRAINSTORMING
• Free flowing idea generation technique• Write down all ideas as they are presented• No judging or pre-selecting• Encourage everyone to participate• Work list to point of “exhaustion”• Evaluate list on objective / subjective criteria
Form of design solution is identified.
Experienced designers resort to trial and error LESS FREQUENTLY than novice designers when
they synthesize designs
A designer considers a design space that contains the knowledge that is used to develop the design
solution.
What happen during synthesis?
Developed and expanded as s/he gains experience
Ref: Maher, M. L. (1990) Process Models for Design Synthesis, AI Magazine Vol. 11 No. 4 pp. 49-58
A design solution /concept is an idea that is sufficiently developed to evaluate the physical principles that govern its behaviour
confirming that the proposed solution will operate as anticipated
Design solutions /concepts must be refined enough
to evaluate the technologies needed to realize themto evaluate the basic form / architecture of themto evaluate their manufacturability
Rough sketch Diagram Notes
Design solutions generation
EVALUATION
Representations
Enough detail must be developed so the functionality of the idea can be ensured
If you generate one idea, it will probably be a poor idea
If you generate twenty ideas, you might have one good idea
Designers tend to take 1st idea,refine to final solution
GENERATE MULTIPLE
CONCEPTS/IDEAS