EngineeringManagement

Hani CherazaieDante Munoz-Castaneda

Tony EbkarianMandeep Singh

Ball Ride-Group 5

Ball Project Problem Statement/Objective

Riders’ complaints have increased by 10% from the previous waterpark season, due to the lack of time spent on the ride. This is in contrast to the 2% of complaints filed during the previous season.

Enhance the customers experience by increasing time spent on ride. Thereby decreasing complaints 5% by the end of the next waterpark season.

Ball Project SIPOCSuppliers Input Process Outputs Customers

ABC Materials Construction Labor

Increase Ride time

Survey

Maintenance Cost Estimate Increase Rider Satisfaction

QA

Warehouse Inventory

Change of Parts Line Trial Execution

Validate Cost On going Customer Satisfaction

Quality Assurance

Specs Magic mountain

Engineering Designer

Materials-board, o-ring, funnel, tubing, bal, stabilizing legs

Drill 2in” apart holes in board

Mount legs onto board

Mount Funnel + O-ring to board

Attach tubing at angle

Measure the rate of time ball travels from time of release

Ball Project- Key Factors

Recalling the Metrics

– Primary Metrics» Baseline- the current time spent on the ride» Angle of the tubing

– Secondary Metrics» Height of Funnel Fixed» Angle of Funnel Fixed

Ball Project-Total Gage R&R

Ball Project- Normality

Ball Project-Metrics

Ball Project-Capability Analysis

Ball Project-DPM

Ball Project- Fishbone Diagram

Ball Project- C&E Matrix

Ball Project- Key Factors

Key Factors from DPM-

• Angle of Tubing

• Height of O-Ring

• Height of Funnel

• Material of Tubing

Ball Project- FEMA

Ball Project-Improve Phase Factors

Angle of Tubing• High-30 degrees

• Low-15 degrees

Height of O-Ring• High-24 inches• Low-20 inches

Tube Material• Plastic• Metal

Ball Project-Full Factorial

Full Factorial Design

Factors: 3 Base Design: 3, 8Runs: 24 Replicates: 3Blocks: 1 Center pts (total): 0

Ball Project-Improve Phase Histogram

3210-1-2-3

99

95

90

80

70

605040

30

20

10

5

1

Standardized Effect

Perc

ent

A angle of tubingB height of O-ringC Tube Material

Factor Name

Not SignificantSignificant

Effect Type

B

Normal Plot of the Standardized Effects(response is measured, Alpha = 0.05)

Ball Project-Improve Phase Normal Plot

BC

AC

A

AB

ABC

C

B

2.52.01.51.00.50.0

Term

Standardized Effect

2.120

A angle of tubingB height of O-ringC Tube Material

Factor Name

Pareto Chart of the Standardized Effects(response is C8, Alpha = 0.05)

Ball Project-Improve Phase Pareto Chart

CurHigh

Low0.00000D

Optimal

d = 0.00000

Targ: 1.670C8

y = 1.6267

0.00000DesirabilityComposite

metal

plastic

-1.0

1.0

-1.0

1.0height o Tube Matangle of

[1.0] [-1.0] plastic

Ball Project-Improve Phase Optimization Plot

30º 20in

Y(x)= 30º + 20in + Plastic

Ball Project-Improved Normality

Ball Project-Improved Capability Analysis

Ball Project-Improved Xbar-R Chart

252321191715131197531

2.0

1.8

1.6

1.4

1.2

Sample

Sam

ple

Mean

__X=1.6798

UCL=2.0514

LCL=1.3082

252321191715131197531

0.60

0.45

0.30

0.15

0.00

Sample

Sam

ple

Range

_R=0.1976

UCL=0.6457

LCL=0

11

Xbar-R for Ball Ride

Ball Project-Improved I-MR Chart

464136312621161161

2.0

1.8

1.6

1.4

1.2

Observation

Indiv

idual V

alu

e

_X=1.680

UCL=2.134

LCL=1.226

464136312621161161

0.60

0.45

0.30

0.15

0.00

Observation

Movin

g R

ange

__MR=0.1706

UCL=0.5574

LCL=0

111

I-MR Chart of Ball Ride

Ball Project- Conclusions

TARGET WAS 1.67 ±0.08 Cpk 0.02, Cpm 0.04 OUR Overall Difficulties

• Measuring• Stability of O-ring, Funnel, Tubing

Optimization Plan• Height

• 20inch

• Angle• 30º

• Material • Plastic

Ball Projects-Questions

Questions??