A pin on disc experiment has been carried out acc to taguchi does. the response(outputs) are coefficient of friction , frictional force. In taguchi analysis , whether this experiment would be a static or dynamic experiment? If static then which optimization S/N ratio is to be considered:
a. smaller the better
b.larger the better
c.nominal the best
Definitions:
STATIC PROBLEMS :
Generally, a process to be optimized has several control factors which directly decide the target or desired value of the output. The optimization then involves determining the best control factor levels so that the output is at the the target value. Such a problem is called as a "STATIC PROBLEM".
DYNAMIC PROBLEMS :
If the product to be optimized has a signal input that directly decides the output, the optimization involves determining the best control factor levels so that the "input signal / output" ratio is closest to the desired relationship. Such a problem is called as a "DYNAMIC PROBLEM".
its a static problem, and you may use smaller is better as we desire a lower coefficient of friction and frictional force
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