Engineering Design Process

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Engineering Design Process

• Practical Problem Solving

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Engineering Design Process

• Uses the Engineering Problem Solving Process
• Problem Definition
• Solution Generation
• Solution Analysis
• Solution Selection
• Solution Implementation

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Engineering Design Process

• Ten Step Process
• Identification of Need
• Problem Definition
• Search
• Constraints
• Criteria
• Alternative Solutions
• Analysis
• Decision
• Specification
• Communication

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Engineering Design Process

• Identify Need
• What need is this going to fill?
• What problem is this going to solve?
• May be formal document
• Missions Needs Statement

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Engineering Design Process

• Problem Definition
• Symptom versus Cause
• Need to be sure solving right problem

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Engineering Design Process

• Search
• Gathering information (not reinvent wheel)
• Other tries
• What are others doing
• Sources of information
• Internet
• Patent Office
• Record findings for reference

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Engineering Design Process

• Constraints
• How product to be used
• Cost of procurement/operations
• Facilities
• Regulation

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Engineering Design Process

• Design Criteria
• Customer set
• Cost
• Reliability
• Weight
• Ease of operation/maintenance
• Appearance
• Compatibility
• Safety features
• Noise level.

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Engineering Design Process

• Alternative solutions
• Develop an many as possible
• Approach problem from different directions
• Be innovative
• Focus on requirements

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Engineering Design Process

• Brainstorming
• Group size 3-15, 6-8 optimal
• Four Rules
• Generate as many solutions as possible
• Hitchhiking encourages
• Wild ideas encourages
• No criticism allowed
• Record all ideas

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Engineering Design Process

• Analysis
• Look at alternative, identify good points/bad
  points
• Identify error in designs
• Combine designs into better designs
• Economic analysis
• Common sense analysis

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Engineering Design Process

• Decision
• Review criteria, what are we looking for?
• Determine decision method
• Evaluate alternative based on criteria

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Engineering Design Process

• Specification
• Describe design
• Drawings
• Models
• Bill of materials
• Design details
• Referenced requirements

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Engineering Design Process

• Communication
• Written report
• Oral presentation

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Engineering Design Process

• Not linear process
• Conceptual Design
• Preliminary Design
• Detailed Design
• Prototype Design
• Final Design