Pdd

Pdd

• 1.
  PRODUCT DESIGN AND DEVELOPMENT Prof.Dr.S.Kathirrvelu, TPRIC, EITEX,BDU. 1
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  PRODUCT PRODUCT- any deviceor system that is designed and produced for use by a customer CUSTOMER-Person who ultimately buys the product  Another person in your company who may use the device you design  Think broadly about who the customer is (who does the product affect)  Chief objective of product design - Satisfying the customer(s) 2
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  WHY STUDY THEDESIGN PROCESS?  Continuous need for new, cost effective, high quality products  Today’s products are complex and require a team of people with different backgrounds to take an idea from concept to market  ~85% of problems with new products not working as intended, taking too long to bring to market, or costing too much are the result of a poor design process 3
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  MEASUREMENT OF THEDESIGN PROCESS  Product Quality – How good is the product  Product Cost – What is the manufacturing cost  Development Time – How quickly was the product developed  Development Cost – How much was spent to develop the product  Development Capability – can the team be better able to develop future products 4
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  3 MEASURES OFDESIGN Cost Quality Time Duration may vary from 1 yr to 10yrs or greater 5
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  DESIGN AND DEVELOPMENTTEAM  Marketing  Design  Mechanical  Electrical  Software  Industrial  Manufacturing  Operations  Warehouse  Supply Chain 6
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  DEVELOPMENT AND DESIGNPROCESS  Phase 0: Planning – Begins with the strategy and assessment of technology developments and market objectives  Phase 1: Concept Development – Identify target market, alternative product concepts generated and evaluated  Phase 2: System-level Design – Definition of the product and break-down into subsystems and components 7
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  DEVELOPMENT AND DESIGNPROCESS  Phase 3: Detail Design – Complete specification of the geometry, material, tolerances and manufacturing details  Phase 4: Testing and refinement – Prototype evaluation and assembly testing. Utilizes prototype tooling  Phase 5: Production Ramp-up – Completion of production tools and process to implement manufacturing process as well as train workforce (work out the kinks) 8
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  DEVELOPMENT STEPS  Step#1: Identify Need  Two sources: the market (market-pull), or the development of a new technology (technology push)  Step#2: Plan for the Design Process  Planning involves simply deciding on how to allocate the company’s resources of people, money, time, and equipment to complete the design tasks.  Step #3: Develop Engineering Specification  Goal is to completely understand the problem  Three steps:  1)identify customers  2) generate customer requirements  3)develop engineering specifications  Step #4: Develop Concepts  Based on customer requirements and engineering specs.  Multiple concepts may be evaluated by comparing the concepts generated to the specifications developed. Goal is to select the best concepts for refinement into products.  Step #5: Develop Product  Starting a project with a single conceptual design in mind, without concern for the earlier phases, is poor design practice and leads to poor-quality products.  As products are developed, the are evaluated for manufacture, assembly, behavior, and cost. 9
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  DEVELOPMENT STEPS (CONT) During each stage of the design process, we must be able to communicate the information to others (recall concurrent design). Design Notebook  Communication with management/customers (possibly during design reviews)  Make it understandable to the recipient.  Carefully consider the order of presentation:  Present the whole concept or assembly and explain its function  Describe the major parts and how they relate to the whole and its function  Tie the parts together into the whole  Be prepared with quality material: 10
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   Have goodvisual aids and written documentation  Follow an agenda  Be ready for questions beyond the material presented  Documents communicating the final design  Drawings (or computer data) of assemblies and details.  Written documentation to guide manufacture, assembly, inspection, installation, maintenance, retirement, and quality control. 11