Material Storage and Material Storage and Dispensing Device for the Dispensing Device for the

KitchenKitchen

Charles E Schaefer, Jr. School of Engineering

Department of Mechanical Engineering

ME 424 Senior DesignProposal Presentation

Thursday, February 12th, 2004

Group 9Ethan Jayson

Cora LaFrance Judy Ng

Advisor: Professor Zhenqi Zhu

PRESENTATION PRESENTATION OVERVIEWOVERVIEW

Project SummaryProject Summary Fall 2003 Recap & ConclusionsFall 2003 Recap & Conclusions Objectives for 2004Objectives for 2004 DisciplinesDisciplines Approach & MethodsApproach & Methods Anticipated ProblemsAnticipated Problems Project DeliverablesProject Deliverables

PROJECT SUMMARYPROJECT SUMMARY DesignDesign, , Analyze Analyze & Test & Test a Concept for a a Concept for a

Material Storage & Dispensing DeviceMaterial Storage & Dispensing Device Explore Existing Products and DesignsExplore Existing Products and Designs Integrate Features to form Improved Integrate Features to form Improved

DesignDesign Perform Material Selection, DFM, and Perform Material Selection, DFM, and

Cost Analyses Cost Analyses Produce Final Design that Meets Design Produce Final Design that Meets Design

SpecificationsSpecifications

FALL 2003 SUMMARYFALL 2003 SUMMARY

State-of-the-Art Review

Meeting with Advisor/Sponsor

RoughSketches

Brainstorming

Patent Search

Conceptual Designs

Alternative Designs

Concept Screening & Scoring

Final Concept Selection

Engineering Analysis DFM Cost Analysis

MAJOR COMPONENTSMAJOR COMPONENTS

PRODUCT ASSEMBLYPRODUCT ASSEMBLY

Container Lid

Container

Stand Upright

Stand Base

Spiral

Turning Knob

Material Exit

MATERIAL SELECTIONMATERIAL SELECTION

Container: Container: PolystyrenePolystyrene Low CostLow Cost High Impact ResistanceHigh Impact Resistance FDA Compliant for Use with FoodFDA Compliant for Use with Food Good TransparencyGood Transparency

Stand Base: Stand Base: Cast AluminumCast Aluminum

Stand Upright: Stand Upright: Stainless SteelStainless Steel

TOTAL PART COST TOTAL PART COST ESTIMATIONESTIMATION

Part Description

Assembly Cost ($)

Mat'l Cost ($)

Mfg Cost ($)

Total Part

Cost ($)Base 0.012 3.876 0.200 4.089Rack 0.016 0.073 0.050 0.139

Rotate Assembly 0.033 0.033Container/Hopper 0.016 0.078 0.250 0.344

Spiral 0.016 0.090 0.350 0.456End 0.029 0.024 0.100 0.153Knob 0.029 0.024 0.150 0.203

Rotate Assembly 0.033 0.033 Cover 0.012 0.042 0.150 0.204

$0.20 $4.21 $1.25 $5.65

Determined Criteria for Successful Determined Criteria for Successful Completion of Design ProjectCompletion of Design Project

Followed Design Process:Followed Design Process: Literature and Product ResearchLiterature and Product Research Development of SpecificationsDevelopment of Specifications Formulation of Conceptual and Formulation of Conceptual and

Alternative DesignsAlternative Designs Final Design Selection Final Design Selection Engineering and Cost AnalysesEngineering and Cost Analyses

FALL 2003 FALL 2003 CONCLUSIONSCONCLUSIONS

FALL 2003 FALL 2003 CONCLUSIONSCONCLUSIONS

The Design Team Delivered an The Design Team Delivered an Innovation, Simple Innovation, Simple && Efficient Solution Efficient Solution to Design Problemto Design Problem

Design: Spiral Dispensing MechanismDesign: Spiral Dispensing Mechanism Height: 17.3 inches Height: 17.3 inches Storage Capacity: 22 Cups (7.5 lbs. of Flour)Storage Capacity: 22 Cups (7.5 lbs. of Flour) Dispensing Capability: ¼ Cup per RevolutionDispensing Capability: ¼ Cup per Revolution Material + Assembly Cost: $5 to $6 per unitMaterial + Assembly Cost: $5 to $6 per unit

FALL 2003 FALL 2003 CONCLUSIONSCONCLUSIONS

The Design for the Stand Needs The Design for the Stand Needs Improvement Based on: Improvement Based on: FEA Analysis ResultsFEA Analysis Results Aesthetic AppealAesthetic Appeal Comments and Feedback Comments and Feedback

Further Design Considerations are Further Design Considerations are Necessary before Design FinalizationNecessary before Design Finalization

OBJECTIVES FOR OBJECTIVES FOR 20042004

TestingPrototypeMeet

SpecificationsQuality of Product

Promotion of Product

Accuracy

User Friendly

Manufacturability

Website

Engineering Day

Develop Test Procedures

Analyze Results

Working Prototype

Final Prototype

DISCIPLINES – Fall DISCIPLINES – Fall 20032003

Engineering:Engineering: StaticsStatics DynamicsDynamics Materials Materials

PropertiesProperties DFMADFMA

Industrial Industrial Design:Design: ErgonomicsErgonomics Visual AppealVisual Appeal

Administrative:Administrative: Time Time

ManagementManagement Cost Cost

ManagementManagement Patent ResearchPatent Research

Marketing:Marketing: Market Research Market Research

& Analysis& Analysis

DISCIPLINES - SPRING DISCIPLINES - SPRING 20042004

PrototypingPrototyping Data AnalysisData Analysis Mechanics of MaterialsMechanics of Materials ManufacturingManufacturing MarketingMarketing Web DevelopmentWeb Development Time/Cost ManagementTime/Cost Management

APPROACH & APPROACH & METHODSMETHODS

Design ChangesDesign Changes

Working Model Material SelectionWorking Model Material Selection

Fabricate Working ModelFabricate Working Model

Test Mechanism in ModelTest Mechanism in Model

Computer Aided Stress/Strain TestingComputer Aided Stress/Strain Testing

Apply Necessary Design ChangesApply Necessary Design Changes

Stereolithography of Final DesignStereolithography of Final Design

Website DevelopmentWebsite Development

Engineering Design Day PosterEngineering Design Day Poster

Final Report & Presentation

ENGINEERING ANALYSISENGINEERING ANALYSISSTRESS & DISPLACEMENTSTRESS & DISPLACEMENT

Center of Gravity

Application of Load From Flour = 7.5 lbs.

STRESS ANALYSISSTRESS ANALYSIS

Location of Highest Stress

Maximum Von Maximum Von Mises Stress: 49.07 Mises Stress: 49.07 MPaMPa

DISPLACEMENT DISPLACEMENT ANALYSISANALYSIS

Location of Max Displacement

REVISED STAND DESIGNREVISED STAND DESIGN Container & Spiral

Will Remain the Same Improved Stand

Design to Reduce Stresses and Deflections

Material: Polystyrene Goal of Final Design

Stability Material Usage Cost Effectiveness

NEW STAND IDEANEW STAND IDEA

Hole For Stand

PROTOTYPE FABRICATIONPROTOTYPE FABRICATION SpiralSpiral

Buy Similar ShapeBuy Similar Shape• AugerAuger• Injection Molding Injection Molding

ScrewScrew Machine a ScrewMachine a Screw

ContainerContainer Construct From Construct From

ScratchScratch• PlasticPlastic• Metal SheetingMetal Sheeting

Modify Tupperware-Modify Tupperware-like Containerslike Containers

EXPECTED EXPENSESEXPECTED EXPENSESITEM COST

Stereolithography ($200/hr x 24 hrs)

$4800.00

Container $50.00

Spiral $60.00

End Knob $60.00

Cap Piece $40.00

Top $40.00

Cap $40.00

Stand $50.00

Site Visit (gas, food, etc.) $100

Material (Poster, Poster Board, CD's) $75

Miscellaneous $50

Total $5365.00

$5365

ANTICIPATED ANTICIPATED PROBLEMSPROBLEMS

Mechanism Does Not Perform to Mechanism Does Not Perform to Required Specifications.Required Specifications.

Finding Proper Materials for Finding Proper Materials for Creating a Working Prototype.Creating a Working Prototype.

Develop a Cost Effective Method to Develop a Cost Effective Method to Produce the Product.Produce the Product.

Acquiring Parts in Time for Testing.Acquiring Parts in Time for Testing. Learning How to Develop a Web SiteLearning How to Develop a Web Site..

DELIVERABLESDELIVERABLES Working PrototypeWorking Prototype Engineering Drawings and Engineering Drawings and

SpecificationsSpecifications Test ResultsTest Results Final PrototypeFinal Prototype Summary of Project ExpensesSummary of Project Expenses Informative WebsiteInformative Website Poster for Engineering Design DayPoster for Engineering Design Day Final Report and Presentation Final Report and Presentation

Showing All Stages ofShowing All Stages of Development Development

A New Addition to Group 9A New Addition to Group 9

New Group Member: Catherine OldfieldNew Group Member: Catherine Oldfield 3 - Member Group 3 - Member Group 4 - Member Group 4 - Member Group An Additional Source of Ideas and An Additional Source of Ideas and

CreativityCreativity Change of Group DynamicsChange of Group Dynamics

THANK YOU!THANK YOU!