Statistical Design of Experiments
Statistical Design of Experiments
You are a performance engineer
You are a performance engineer
working on a new product team.
working on a new product team.
You are responsible for developing
You are responsible for developing
a recipe such that the engine is
a recipe such that the engine is
emissions compliant. You decide
emissions compliant. You decide
to run a designed experiment.
to run a designed experiment.
Discussion Exercise
Discussion Exercise
During the brainstorming session,
During the brainstorming session,
6 factors were identified for
6 factors were identified for
potential effect on NO
potential effect on NO
x
x
and
and
Particulates. They are:
Particulates. They are:
•
•
Swirl Ratio
Swirl Ratio
•
•
Number of Spray Holes
Number of Spray Holes
in the injector
in the injector
•
•
Injector SAC type
Injector SAC type
•
•
Common Rail Pressure
Common Rail Pressure
setting
setting
•
•
Nozzle hydraulic flow
Nozzle hydraulic flow
•
•
Injector timing
Injector timing
Each factor
Each factor
is to be
is to be
tested at 2
tested at 2
levels each
levels each
 |
 |
 |