1. SENIOR DESIGN PROJECT P08455
Value Engineering
Dresser Rand Compressor Case
SENIOR DESIGN PROJECT P08455
Stephen Papa (IE- Project Manager), Chris Bulawa (ME), John Foley (ME),
Eric Hodecker (ME) and John Roylance-(IE)

2. Value Engineering in a Manufacturing Facility
Objective:
Design and build a safe compressor final internal assembly stand for the Olean Manufacturing Facility.

3. Identify Customer Needs
Step 1: Gather Raw Data From Customers
Interviews
Dresser Rand Site Visits
Step 2: Interpret Raw Data in Terms of Customer Needs
Customer Statement -> Interpreted Needs

4. Step 3: Project Requirements
Key Needs:
Adjust to different sized compressors. [Length (35”-86”) and Diameter 21”-43”)]
Be able to support up to 30,000lbs for a week.
Support different sized Heads
Work bench to support assembly tools
Organize the Needs into a Hierarchy:
Need 1: The holding technique and hardware needs to be safe.
Need 2: The holding technique and hardware needs to avoid damage.
Need 3: The holding technique and hardware needs to support compressor case functions.
Need 4: The holding technique and hardware needs to be adjustable.
Need 5: The holding technique and hardware needs to be quick.
Need 6: The lifting technique and hardware needs to be cost effective.
Need 7: The holding technique needs to be standardized.
Organize the Needs into a Hierarchy:

5. Step 4. Establish the Relative Importance of the Needs

6. Step 3: House of Quality:

7. Competitive Benchmarking
Head
Pipe Clamps to Support Head
Top Half is Removed
During Final Assembly
Bundle
Cradles
Complete Bundle on Contract Tooling

8. Concept Subsystems Sub Systems Main Compressor Stand Head Support
Work Bench
Feet
Length Adjustability

9. Concept Subsystems (Compressor Stand)
Main Compressor Stand
Solid “V” Design
Adjustable “V” Design
Adjustable Support design

10. Solid “V” Design Advantages: Simplicity Low cost No moving parts
Fits all compressor diameters
Disadvantages:
Height not adjustable
Length not adjustable
Lacks ergonomics

11. Adjustable “V” Design Advantages:
Adjustable V and length using track system
Disadvantages:
Height ergonomics

12. Adjustable Support Design
Advantages:
Adjustable V and length using track system
Supports optimum height work level
Disadvantages:
More Complex
Cost

13. Compressor Stand Selection (Pughs)

14. Concept Subsystems (Head Support)
Jack Stand Drawer
End Table V
Pin V

15. Jack Stand Drawer Advantages: Integrated into compressor stand
Industry used jack stand
Disadvantages:
Maintenance of track
Drawer support

16. End Table V Advantages: Simplicity Rigidity Disadvantages:
Not height adjustable
Separate table

17. Pin V Advantages: Simplicity Holds all heads Disadvantages:
Separate table

18. Head Support (Pughs)

19. Concept Subsystems (Work Bench)
Bracket Bench
Swivel Bench
Fold Away Table

20. Swivel Table Advantages: Adjustable height
Able to be moved to different locations
Disadvantages:
Wear on joints
Cumbersome

21. Bracket Table Advantages: Movable Adjustable in height Rigid
Disadvantages:
Time to move
Ergonomics

22. Fold Away Table Advantages: Adjustable in height
Fold away to get out of way
Rigid
Disadvantages:
Ergonomics

23. Work Bench (Pughs)

24. Concept Subsystems (Length Adjustability)
Track
Screw
Pin Hole

25. Screw Advantages: Ergonomics Changeover Speed Adjustability
Disadvantages:
Cost
Manufacturability

26. Pin Hole Advantages: Ergonomics Rigidity Stability Disadvantages:
Safety
Ergonomic Changeover

27. Track Advantages: Ergonomics Rigidity Stability Disadvantages:
Changeover speed
Ease of use

28. Concept Subsystems (Length Adjustability)
Concepts A
Track B
Screw C
Pin Hole
Selection Criteria
Weight
Rating
Weighted Score
Cost 3 4 12 2 6
Manufacturability 24 18
Ergonomic (work) 5 25 20
Ergonomic (changeover) 10 30
Adjustability (length) 40 50
Maintenance
Safety
Encumbrance 15
Ease of use (changeover)
Compressor Accessibility
Changeover Speed
Durability 9 45 36
Stability 7 28 35
Total
359
313
348
Rank 1
Continue ?
yes no
develop

29. Concept Subsystems (Feet)
Spring Loaded
Casters
Screwed Feet (Stationary)

30. Spring Loaded Polyurethane Wheel
Advantages:
Allows easier changeover
Stability
Disadvantages:
Unable to change workstation level
Maintenance

31. Braked Casters Advantages: Strong
Able to lock in place for a secure workstation
Disadvantages:
Unable to change workstation level
Maintenance

32. Threaded Feet Advantages: Strong Easy to level workstation
Disadvantages:
Cumbersome when adjusting table

33. Concept Subsystems (Feet)
Concepts A
Spring loaded B
Casters C
Screwed in Feet
Selection Criteria
Weight
Rating
Weighted Score
Cost 3 2 6 9
Manufacturability 5 15
Ergonomic (work) 10 4 40 50
Ergonomic (changeover) 30
Maintenance 24
Safety
Leveling ability
Encumbrance 12
Ease of use (changeover)
Changeover Speed 18
Durability 8 32
Stability
Total
371
362
368
Rank 1
Continue ?
yes no

34. Final Design