Statistical Design of Experiments
Statistical Design of Experiments
Test Cell Improvement Project
Test Cell Improvement Project
Objective
Objective
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Implement changes/improvements that would reduce test cell
Implement changes/improvements that would reduce test cell
tolerance theft to 25% of the current tolerance theft.
tolerance theft to 25% of the current tolerance theft.
Improvement Process
Improvement Process
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Identify quality characteristics (response variables)
Identify quality characteristics (response variables)
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Rated torque
Rated torque
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Torque at torque peak
Torque at torque peak
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BSFC at rated
BSFC at rated
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BSFC at torque peak
BSFC at torque peak
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Brainstorming sessions to identify input factors that the
Brainstorming sessions to identify input factors that the
workgroup felt had the most impact of the quality
workgroup felt had the most impact of the quality
characteristics under study.
characteristics under study.
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The cause and effect diagram (Ishikawa diagram) was used to
The cause and effect diagram (Ishikawa diagram) was used to
keep the work group focused. We concentrated on materials,
keep the work group focused. We concentrated on materials,
machines, methods, operators, etc.
machines, methods, operators, etc.
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