Final Presentation: Compressor Transport System & Layout P13458 - - PowerPoint PPT Presentation

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Final Presentation: Compressor Transport System & Layout P13458 - - PowerPoint PPT Presentation

Final Presentation: Compressor Transport System & Layout P13458 RIT Senior Design Team May 10, 2013 10-10:30AM 09-2030 Dresser- Rand, Painted Post http://edge.rit.edu/edge/P13458/public/Home Agenda Problem Statement


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SLIDE 1

P13458 RIT Senior Design Team May 10, 2013 10-10:30AM 09-2030 Dresser- Rand, Painted Post http://edge.rit.edu/edge/P13458/public/Home

Final Presentation: Compressor Transport System & Layout

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SLIDE 2

Agenda

 Problem Statement  Accomplishments For The Transport System

 Design History  Final Design  Summary Of Test Results  Recommendations

 Accomplishments For The Layout

 Design History  Final Design & Test Results  Recommendations

 Reflection On The D-R/RIT Partnership  Reflection On Our Code Of Ethics

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SLIDE 3

Problem Statement

Design a flexible material handling system that is easy to use and incorporates the safest design elements within cost and functionality

  • constraints. This design

fully supports the new process layout in Dresser-Rand’s strategic project to increase capacity for the MOS compressor projected sales.

New Shop Floor 6-throw MOS Compressor

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SLIDE 4

Transport System Design History

 Design Considerations  Long Beam Caster System  Short Frame Caster System (Yellow Frame)  Air Bearing Technology  Free Support System  Fixed Support System  Modified Support System

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SLIDE 5

Design Considerations

Movement nt Propul pulsi sion

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SLIDE 6

Long Beam Caster System

 Assumed entire

compressor assembly would be loaded, including cylinders

 Assumed massive CG

changes while loaded

 Large structural members

necessary

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SLIDE 7

Short Frame Caster System

 Yellow Frame Design  Versatile – to account for

multiple product families

 Modular – to account for

multiple product sizes

 Could not be used at test

station

 Was prototyped

 Many design flaws

surrounding caster system

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SLIDE 8

Air Bearing Technology

 Unidirectional  Nearly frictionless

 Reduces horizontal force

required to 1lb per 1000lbs

 Air supply is common in

industrial setting

 Requires flat, smooth floor

surfaces

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SLIDE 9

Free Support System

 Based on the short frame

system

 Adapted for air pallet use

 Legs fixed to support beam  Concerns regarding

clearance between floor and legs during movement

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SLIDE 10

Fixed Support System

 Vertical “legs” of the Free

system are now fixtures placed at each station

 Eliminates floor clearance

concerns while moving from station to station

 Simplifies manufacturing  Easily integrated into

testing and shipping

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SLIDE 11

Removable Support System

 Conceptual design

 Method of manufacture and

dimensions undetermined

 Removable fixture attaches to

beam and acts like a jack stand

 Overcomes flaws that were

revealed during the 3P event

 Stress analysis not completed

 results should be comparable

to the free system results

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SLIDE 12

Removable Support Qualities

 Pros

 No more fixtures

 Resolves ergonomic issues

discovered during the 3P event

 Lowers move prep time – no

longer need to configure fixtures from station to station  Bolt on legs removable for

test and shipping

 Cons

 Requires the floor to be

leveled

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SLIDE 13

Test Results

Eng Metrics Target

  • Value

Marginal Value Dir Summary for Phase I Prelim Design Current Status

  • for

Caster System Prelim Design Test Plan Number

  • f

Tests Required Results After Testing Additional Comments Time to move 5min 20min

  • Tugger

should be able to move in under 20 minutes, however there are no actual speed specifications

  • n

the device Measure time for prototype movement between station to station using a stopwatch, use heaviest compressor model as it will have the lowest acceleration 5 per station Did not measure time because full scale prototype and Air pallets were not

  • rdered

yet Time to setup move 0min 10min

  • Won't

know until final design, will depend

  • n

type

  • f

casters used and leveling system implemented Measure time for setup using a stop watch 5 per compressor model Full scale prototype never built Time to return 10min 30min

  • Need

to finalize return process Measure the time to return prototype from the end

  • f

the line to the cart storage location 5 Full scale prototype never built Cart Weight 1500lb 2500lb

  • Current

Estimate: (air caster version was estimated at 1,160 lbs, airfloats catalog is down so I can't find the weights… to subtract

  • ut)

Weigh protoype using a hanging scale 1 Weights were estimated based

  • n

cadd data and material weights Eng Metrics Target

  • Value

Marginal Value Dir Summary for Phase I Prelim Design Current Status

  • for

Caster System Prelim Design Test Plan Number

  • f

Tests Required Results After Testing Additional Comments Force to move 100lb 500lb + 300lb force necessary.

  • Benchmark

research: tuggers can handle

  • ver

500lbs Measure the strain in the tugger connection interface during movement

  • f

the heaviest compressor using strain gauges 5 Actual tugger system was not

  • rdered

yet Stays in Line 3ft 5ft + Need to finalize caster layout Mark the ideal path

  • n

the floor, after moving the prototype to the next station measure the difference with a tape measure 5 cycles through stations 1-5 Covered through the 3P event.

  • Moved

stations farther apart for more clearance Power Sources Required 1 2

  • 1

Battery

  • perated

Tugger Test capability

  • f

a single tugger system to move each compressor model 1 per compressor model Not tested although Dresser Rand is working with Airfloat to make sure they have proper air capabilities Stopping distance 5ft 10ft

  • Unsure
  • f

safe deceleration value and therefore stopping distance Measure the distance it takes for each compressor model to coast to a stop from maximum velocity using a tape measure 5 per compressor model Air bearings stop immediately when air supply is cut Weight per cart 15T 10T + HOSS Will be included in cart design.

  • 15T

capabilities are met. Combine measured cart weight with Dresser Rand's data

  • n

compressor weight 1 Data can be derived from cadd models and known material weights Metric Value

P13458: House

  • f

Quality & Test Plan

3/15/13 5/7/13

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SLIDE 14

Recommendations

 Modify testing station to incorporate free-system design

 Possible lifting/attachment to test bed

 Determine lifting/loading method

 Need 3-axis positioning without a crane  Modified Grey Portable Lifting system for vertical lifting  Back truck under lifted compressor

 Air bearings under truck bed  Driver positioning

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SLIDE 15

Layout Design History

 Took dimensions of required

equipment and space for each station in the assembly, test, and paint process in the current state

 Created factors of varying

importance

 Designed 4 different layouts – 2

straight-line, 2 U-shaped – in the new shop floor

 Conducted a 3P event on a U-

shaped layout using cardboard to check theoretical values against actual feedback from operators and line side managers

3P Event Result Factors Affected Status Tested U-shape design Returnability Flexibility Pass-by/Pass-through Added new cylinder assembly flow line Space Utilization Inventory Access Operators and managers evaluated the layout and gave feedback on parts and people flow and equipment requirements Inventory Access Ease of Movement by Operator Movement Time Found hidden problems and constraints i.e. spacing between stations, jib crane requires oil pump station next to column Space Utilization Maintenance Access Tested – good outlook Needs further testing, but predict a good outlook Needs attention, was not addressed

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SLIDE 16

Final design

Top Level Assembly Level Flow

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SLIDE 17

Recommendations

 Re-evaluate test bay requirements for sizing and safety –

retractable blast walls

 Add in and test inventory flow and information flow  Understand exact requirements and locations for

energy/power/air sources

 Full dimensioning of layout  Computer simulation of process flow  Continuous evaluation and improvement  5S taping and marking to indicate specific areas, i.e. operator

walking zone inside cell, in-process kanban, visitor aisle way

 Identify and allocate future expansion area

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SLIDE 18

Reflection on the DR/RIT Partnership

 Overall, very successful learning experience  Design process

 Iterative in nature – lots of ‘back to the drawing board’ moments  Conceptualization and the funnel of idea development

 Understanding fluctuating customer needs  Efficiency of communication  Recommend a “consulting” contract be completed at the start

 To better establish the needs of Dresser Rand  So the team can better prioritize efforts

 Recommend creating a communications protocol to prevent

delay in work as the team awaits feedback

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SLIDE 19

Reflection On Our Code Of Ethics

Code of Ethics Components Assessment Recommendations

Expectations for Team Behavior: Honesty, Respect, Accountability, Professional and Thorough Communication Good communication during meetings, but email communication was not responded to in a timely manner. Also, accountability could have been better during MSD II. Better individual time management, check email twice daily and respond Expectations for Integrity of Assigned Tasks: Tasks should be completed on-time and with the quality expected as seen in the MyCourses documentation and as discussed during assignment of the tasks Completion of tasks was not always done

  • n time, therefore resulting in wasted

team meeting time catching up on work. Better individual time management, more thorough and clear description

  • f tasks

Not Meeting Expectations: Any complaints or inability of meeting expectations should be shared with the team in order to provide more resources and/or time, or reassign task to another member Many tasks completed last minute and the individuals did not inform the team

  • f their status or ask for help as often as

they should have. Mid-week check-ins, project manager emphasizes team effort - offer help to

  • thers when your workload is light

3 out of 11 components were not followed satisfactorily