Managing Engineering Design V.1

DETAIL DESIGN WORK SHEET: <%=(title.Fields.Item("Project").Value)%>

Contributor:

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Date:

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REQUIREMENTS

CONTRIBUTING
FACTORS

CURRENT
STATUS

REQUIRED
ACTION

Good Marginal Poor

Revise
Proceed | N/A

FUNCTIONAL

Interference, assembly sequence, tolerances, surface finish Overall geometry
Displacement, velocity, acceleration, position, fatigue, stiffness Motion of parts
Weight of components, deflection, vibration, resonance, creep, flow, strength, residual stress Forces involved
Torque, speed, horsepower, power transmission Energy needed
Hardness, surface finish, friction, lubrication, replacement Materials to be used
Button/switch design/layout, emergencies, saftey, operation Control system
Assembly, operation, maintenance, safety Information flow

SAFETY

Modes of operation, abusive operation, maintenance Operational
Failure modes and effects analysis Human
Specific issues related to design Environmental

QUALITY

Certification, design and manufacture records Quality assurance
Inspection and component testing, production documents Quality control
Simulated tests/field tests/statistical analysis Reliability

MANUFACTURING

Manufactured as designed, revisions Production of components
Inspection records Purchase of components
Stacking, fit of parts, minimizing operation, ease of assembly Assembly
Packaging, protection, storage, inventory control Transport

TIMING

Disruption caused by revisions Design schedule
Problem diagnosis, debugging procedure, testing materials Development schedule
Inventory control Production schedule
Acceptance criteria, commissioning Delivery schedule

ECONOMIC

Customer reaction, user field tests, data collection Marketing analysis
Recording problems and solutions Design costs
Cost of redesign Development costs
Record of manufacturing problems/costs Manufacturing costs
Record of packaging/distribution costs Distribution costs

ERGONOMIC

Functional performance, suggested improvements User needs
Understanding/use of instruction manual/controls/ease of use Ergonomic design
Reaction of machine controls, feedback to user Cybernetic design

ECOLOGICAL

Machining, assembly or operational problems found? Material selection
Filling, spillage, leakage, maintenance, filtration Working fluid selection

AESTHETIC

Surface finish, overall quality, colors, textures, consistency Customer appeal
User reaction/comments/consumer reports Fashion
Comment from field tests/commissions Future expectations

LIFE-CYCLE

Loading/unloading, labelling, transport mode Distribution
Monitoring, feedback, returns, recalls Operational
Spare parts supply, spare parts inventory/tracking, service facilities Maintenance
Rebuild, remanufacture Disposal

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