Redesign of the Hydrostatic Force and Center of pressure Experiment

8/23/2010 1

Group Members: Hesam NouriGerhard NoviantoRahul PatelJuan Tapia

ME 462 Capstone Design -- Fall 2009

Sponsor: Dr. Siva Krishnan

Advisor: Dr. Hazim El-Mounayri

Experiment

8/23/2010 2

Lab’s objective Measuring Hydrostatic Force Calculate Center of Pressure

Customer Requirements

8/23/2010 3

Increased ergonomics in terms of operation

Improved repeatability

Minimum experimental error and operational time

Possible safety issues are to be addressed as well.

Instructional Video Manual

Vision: Run the experiment and calculate the results. Identify the most effective parameters. Find optimum solution for those parameters. Build a virtual prototype and analysis using Ansys.Manufacture the parts and assemble it. Rerun the experiments to validate it. Budget < $500

Critical Success Factors: Communication Team Management Planning Clear Goal

Strategy: Keep in touch with the CustomerWeekly Group Meetings

Vision, Critical Success Factors, and Strategy

8/23/2010 4

Engineering Deliverable Items

8/23/2010 5

Quantity Description of Deliverable Exit Criteria

1 Redesigned units of this experiment Delivered

1 Instructional Video Manual Delivered

Technical Approach

8/23/2010 6

Customer’s Key Technical Requirements

Decrease the percent error

Key Technical Issues

Hard to balance the tank

Takes 2 hour performance the lab

Safety issue in emptying the tank

Key Features and Benefits

Efficient way to measure height

Hanger Extension for balancing

Engineering Schedule

8/23/2010 7

9/7/2009 9/17/2009 9/27/2009 10/7/2009 10/17/2009 10/27/2009 11/6/2009 11/16/2009 11/26/2009

Obtain Customers' Requirement

Create Development Plant

Generate Specifications

Function Decomposition

Function - Concept Mapping

Generate Design Concept Draft

Evaluate Design Concept Draft

Engineering Drawing

Analysis of Engineering Drawing

Re Evaluation of concept draft

Finalize Bill of Material

Manufacture Process

Assembly Process

Product Evaluation (Test)

House of Quality

8/23/2010 8

Function Decomposition

8/23/2010 9

Function Concept Mapping

8/23/2010 10

Overall Concept 1

8/23/2010 11

Overall Concept 2

8/23/2010 12

Decision Matrix

8/23/2010 13

Importance

Customer Requirements Dr.Krishnan Lab TA Students Concept 2 Current Concept 1

Experimental result's accuracy26 28 5 +1

DA

TUM

+1

Minimum operational time10 23 26 +1 +1

Attractive looks 2 1 20 S +1

Ease to Maintenance 21 20 0 S S

Ergonomics/ Easy to operate6 4 30 +1 -1

Able to use simultaneously5 5 19 S S

Durable equipment 5 19 0 S SCost 25 0 0 S STotal +

Total –

Overall

Weighted (Dr Krishnan)

Weighted (Lab TA)

Weighted (Students)

3 - 31 - 12 - 2

42 - 3255 - 48

61 - 21

Final Concept

8/23/2010 14

Final Design in Pro-Engineering

8/23/2010 15

Generated Mesh

8/23/2010 16

Safety Margin

8/23/2010 17

Maximum Shear Stress

8/23/2010 18

Bill of Material

8/23/2010 19

Results Summary

8/23/2010 20

Operational time of 30-45 minutes for new redesign with minimum effort

Future Improvement:

Water speed controller can be installed on the elbow(bottom part)

Different kind of glue for more attractive looks

Better awareness of the responsibilities and duties pertaining to industry roles.

Lessons Learned

8/23/2010 21

Positive Items:

Awareness of the dynamics of working in a team.

Experience of exchanging ideas and inspiring others to work together.

Demonstrating professional behaviors such as taking responsibility, showing up on time and meeting deadlines.

Learning from and helping one’s peers.

Questions

8/23/2010 22