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42
Statistical Design of Experiments
Statistical Design of Experiments
Exercise 1 Cont’d.
Exercise 1 Cont’d.
3.
3.
Identify the levels for the Main Effects
Identify the levels for the Main Effects
that you chose in question #2.
that you chose in question #2.
Answer:
Answer:
Main Effect
Main Effect
LEVEL 1
LEVEL 1
LEVEL 2
LEVEL 2
A)  Input air pressure
A)  Input air pressure
100 psi
100 psi
psi
80 psi
80 psi
psi
B)  Fuel pump mounting nut
B)  Fuel pump mounting nut
Snug
Snug
Loose                         
Loose                         
C)  TDC set point
C)  TDC set point
0.75 deg. before
0.75 deg. before
TDC -
TDC &#45;
-
top dead    
top dead    
ctr
ctr
(0 deg)       
(0 deg)       
D)  Fuel pump mtg
D)  Fuel pump mtg
mtg
nut torque seq.
nut torque seq.
Top first
Top first
Bottom first              
Bottom first              
E)  Fuel pump gear torque
E)  Fuel pump gear torque
Two step
Two step
One step                    
One step                    
F)  Backlash tool
F)  Backlash tool
METC
METC
Spring design          
Spring design          
G)  Associate
G)  Associate
Bob
Bob
Jim     
Jim