lecture #1: pd - ch 1. introduction
DESCRIPTION
Lecture #1: PD - Ch 1. Introduction. Ref: Product Design and Development by Karl T. Ulrich and Steven D. Eppinger, McGRAW-Hill. 2011.2.8. Ch 1 Introduction. Varieties of Product. Ch 1 Introduction. Successful Products. Characteristics of successful PD. - PowerPoint PPT PresentationTRANSCRIPT
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Lecture #1: PD - Ch 1. IntroductionLecture #1: PD - Ch 1. Introduction
Ref: Product Design and Development by Karl T. Ulrich and Steven D. Eppinger, McGRAW-Hill
2011.2.8
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Ch 1 IntroductionCh 1 Introduction
Varieties of Product
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Ch 1 IntroductionCh 1 Introduction
Successful Products
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1.1. Characteristics of successful PDCharacteristics of successful PD
Successful product development Producible Marketable Profitable
Environment Friendly Social Benefits
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1.1. Characteristics of successful PDCharacteristics of successful PD
Five more specific dimension to assess the performance Product quality
Customer needs Robust and reliable (product)
Product cost (Manufacturing cost) Capital equipment Tooling Incremental cost for each unit
Development time Responsiveness to competitive forces Responsiveness to technological development Economic returns
Development cost Significant fraction of the investment
Development capability Capability to develop products more effectively and
economically
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2. Who designs and develops products2. Who designs and develops products
Product development interdisciplinary activity from all functions of a firm 3 central functions and others
Marketing Design Manufacturing Other functions
Project team single team leader core team and extended team
core team: small extended team: large - dozen, hundreds, thousands,….
supported by teams at partner companies, suppliers, consulting firm, etc..
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2. Who designs and develops products2. Who designs and develops products
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Lecture #1: PD - Ch 2. Lecture #1: PD - Ch 2. Development processes and Development processes and organizationsorganizations
Ref: Product Design and Development by Karl T. Ulrich and Steven D. Eppinger, McGRAW-Hill
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Ch 2. Development processes and Ch 2. Development processes and organizationsorganizations
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Ch 2. Development processes and Ch 2. Development processes and organizationsorganizations
Questions Standard development process for every company Role of experts from different functional areas Milestones dividing the overall PD process into
phases PD organization, divided into groups corresponding to
project or functions
Process Characteristics Process : intellectual & organizational than physical Some : detail, other : not describe processes Same enterprise follow different processes for
different projects
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Ch 2. Development processes and Ch 2. Development processes and organizationsorganizations
Necessity of well-defined processes Quality Assurance
ISO9000, FMEA, TS16949 Coordination
PD process – master plan defining When - their contribution is needed. Whom - exchange information and material.
Planning PD process contains natural milestones Planning : timing of these milestones
Management PD process – benchmark for assessing
performance of ongoing PD effort. Improvement
Documentation of PD process identify opportunities for improvement
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1. A Generic Development Process1. A Generic Development Process
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1. A Generic Development Process1. A Generic Development Process
Planning Corporate strategy Assessment of technology developments and
market objectives Output : the project mission statement The target market for the product, business goals,
key assumptions, and constraints
Concept development target market generate alternative product concepts select an alternative concept: form, function, features, spec. analysis of competitive products, economic
justification of project
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1. A Generic Development Process1. A Generic Development Process
System level design product architecture and division of it into subsystem
and components assembly scheme output: geometric layout function spec. of subsystem process for assembly process
Detail design Complete spec of geometry, materials, tolerances,
standard parts Manufacturing: process plan and tooling Output: control document for the product drawings or computer files geometry, process plan for fabrication and
assembly
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1. A Generic Development Process1. A Generic Development Process
Testing and refinement Construction and evaluation Early (alpha) prototypes
production - intent parts same geometry and material properties for production
version verifying functional working and customer needs
Later (beta) prototypes parts supplied by intended production processes evaluated internally and tested by customers in their
own use environment goal of beta proto - performance and reliability
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1. A Generic Development Process1. A Generic Development Process
Production ramp-up Product is made using intended production system Train the workforce and workout remaining
problems Artifacts-supplied to preferred customers Transition from production ramp-up to ongoing
production gradual and continuous
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2. Concept development : The front-end 2. Concept development : The front-end processprocess
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2. Concept development 2. Concept development : The front-end process : The front-end process
(1) Identifying customer needs Function
understand customer’s needs communicate them to PD team
Output customer needs statements organized hierarchical list with weighting
(2) Establishing target specifications Function
translation of customer needs into technological terms set early, refined with constraints
Output list of specifications spec. consists of a metric and it’s target value
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Identifying customer needsIdentifying customer needs Need: Soften Surface
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Establishing target specifications IEstablishing target specifications INeed: Soften SurfaceSpec: Elasticity of Surface
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Establishing target specifications : QFD Establishing target specifications : QFD
Need: Soften SurfaceSpec: Elasticity of Surface Need: Solid Gripping (X)
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Competitive Benchmarking InformationCompetitive Benchmarking Information
Need: Soften Surface ( + )Need: Solid Gripping ( - )Spec: Benchmark - Elasticity of Surface
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Establishing target specifications II Establishing target specifications II
Need: Soften Surface ( + )Need: Solid Gripping ( - )Spec: 10 < Elasticity of Surface < 15
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2. Concept development 2. Concept development : The front-end process : The front-end process
(3) Concept generation explore space of product concepts external search, creative problem solving, systematic exploration of the various solution
fragments Output
10~20 concepts by sketch and brief descriptive text
(4) Concept selection function:
concept is analyzed and sequentially eliminated several iterations and additional concept
generations & refinement output:
one preferred concept
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Concept generation & selectionConcept generation & selection
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Concept Generation Concept Generation
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Concept Generation Concept Generation
Need: Soften Surface ( + )Need: Solid Gripping ( - )Spec: 10 < Elasticity of Surface < 15
Al1 : One Body – Two layersAl2 : Two Body – Material 1Al3: Two Body – Material 2
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Concept Generation Concept Generation
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Concept SelectionConcept Selection
Al1 : One Body – Two layersAl2 : Two Body – Material 1Al3: Two Body – Material 2
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2. Concept development 2. Concept development : The front-end process : The front-end process
(5) Concept testing Verify with customer needs Assess the market potentials Idenifying any shortcomings
(6) Setting final specifications function:
commit to specific values of metrics of constraint limitations identified through technical modeling trade-offs between cost and performance
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Product Architecture Product Architecture
Al1 : One Body – Two layersAl2 : Two Body – Material 1Al3: Two Body – Material 2
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Industrial DesignIndustrial Design
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Prototyping Prototyping
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PrototypingPrototyping
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Technical Model Technical Model
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Cost AnalysisCost Analysis
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2. Concept development 2. Concept development : The front-end process : The front-end process
(7) Project planning function:
develop detailed development schedule strategy to minimize development time identifies the resources for project
(8) Economic analysis function:
builds an economic model for product justify continuation of PD program and to resolve specific trade-offs among development cost and manufacturing cost late economic analysis & early economic analysis
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Project Planning Project Planning
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Economic Analysis Economic Analysis
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Information System Information System