D-R Compressor Cell

RIT Senior Design Team P13458Week 4 Status Report

Agenda

• Review of activities thus far• Short term goals• Questions / Requests

Project Summary• Overall goal of project:

– Transform their fixed material position assembly process for their gas application reciprocating compressors into a flowing cell layout

• Motivations:– Prepare for a projected increase in demand for their newly released MOS

compressor– Create a safer environment for the operators (no overhead cranes)– Increase their on-time delivery rating

• Specific Task:– Create the material handling system that will allow the assembly to travel

through this cell and will support the lean manufacturing initiatives this project is pursuing

Note: A consultant has created a conceptual design of the process flow through this cell.

Customer NeedsNo. Priority

Multiplier Description

1 3 Safety & Ergonomics: Minimize work-related injury

2 1 Cost: Minimize purchase & installation costs

3 2 Transportability: Ease of motion to start, sustain movement, and stop

4 1 Current Capability: Compatibility with current facilities

5 3 Scale: Minimize impact of installation to facilities

6 2 Guidance: Ability to remain inline

7 3 Flexibility: Capacity for systems integration

8 2 Maintenance: Minimize operational cost, frequency of repairs, repair costs

9 2 Returnability: Ability to return empty fixture to beginning of the line

Concept Selection – Moving

Safety

Cost

Transportability

Current Capability

Scale

Guidance

Flexibility

Maintenance

Returnability

Feasbility Score

Multiplier 3 1 2 1 3 2 3 2 2Fluid Skid -2 -3 3 -3 -3 3 -3 0 -3 -24Air Skid -1 0 3 2 3 -3 3 0 2 21Conveyor 2 -2 3 -2 -1 3 -2 -3 3 5Cart 2 3 -1 3 3 -2 3 3 2 34Rail System 3 0 2 -1 -2 3 1 3 -3 15Crane -3 -3 3 -3 -2 2 3 0 3 4Mag Lev -2 -3 3 -2 -2 3 1 -3 -3 14

-30

-20

-10

0

10

20

30

40

Fluid Skid

Air Skid

Conveyors

Carts

Rail System

Crane

Mag Lev

Concept Selection – Propulsion

Chain Driv

e

Powered Cart

s

Winch

(es)

Car W

ash St

yle

Powered Rail

Trolle

y

Powered Dolly

Compressed

Air Motor

Unpowered Dolly

Movemen

t by H

and

Air Power

(Hove

rCraft

)

Tread

Drive

0

5

1015

20

25

3035

4045

Safety

Cost

Transportability

Current Capability

Scale

Guidance

Flexibility

Maintenance

Returnability

Speed

Feasbility Score

Multiplier 3 1 2 1 3 2 3 2 2 2Chain Drive -2 2 2 3 -2 3 -3 2 -1 2 0Powered Carts 2 -3 2 3 2 -2 2 -2 3 2 24Winch(es) 2 2 2 3 -1 2 3 0 -2 2 25Car Wash Style 2 -2 2 3 -3 3 -2 1 -3 2 2Powered Rail Trolley 2 -3 2 3 2 3 1 -1 -3 2 21Powered Dolly -1 3 2 3 3 2 3 2 3 1 41Compressed Air Motor 2 -2 2 3 2 -2 2 -2 3 2 25Unpowered Dolly -3 3 -3 3 3 2 3 2 3 -3 17Movement by Hand -3 3 -3 3 3 2 3 2 3 -3 17Air Power (HoverCraft) 2 3 -2 3 3 -2 2 2 2 -3 21Tread Drive 2 -3 2 3 2 -2 2 -2 3 2 24

Concept Selection – Loading

Pneumati

c Actu

ation

Electr

ic Actu

ation

Hydrau

lic Actu

ation

Crane

Forkl

ift

Powered Sc

rew

Ramp Conve

yor

Scisso

r Lift

-30

-20

-10

0

10

20

30

Safety

Cost

Transportability

Current Capability

Scale

Guidance

Flexibility

Maintenance

Returnability

Feasability Score

Multiplier 3 1 2 1 3 2 3 2 2Pneumatic Actuation 3 -1 1 3 2 0 -1 2 0 20Electric Actuation 3 -3 1 1 2 0 -1 1 0 14Hydraulic Actuation 3 -3 1 -3 -3 0 -1 1 0 -5Crane -2 -2 3 2 -2 0 3 1 0 5Forklift -2 1 1 2 3 0 -1 2 0 9Powered Screw 3 2 2 3 2 0 -1 -1 0 19Ramp Conveyor -3 -3 2 -1 -3 0 -1 -2 0 -25Scissor Lift 3 -1 1 3 2 0 -1 2 0 20

Goals for next 2 weeks

• D-R Approval for customer needs, functional decomposition

• Specifications definition from D-R• Develop solutions based on feedback from D-R • Risk Management• Schedule Systems Design Review• Create Systems Design Review Presentation

Requests

• Data on Cylinder weights for all families• Data Cylinder dimensions for all families

• Is there an expectation for future line expansion?

Project Requests

Requests:• Review customer needs & provide feedback• Review functional decomposition & provide

feedback• Specifications and constraints definition to

meet customer needs– Ideas: time to move, size envelope for system

within layout, no overhead crane, no monuments

Next Steps

• Systems Design Review– Tentatively Scheduled Friday, January 18th