Taguchi's L8 Orthogonal array
Taguchi's L8 Orthogonal array
(OP)
Can anyone please help me to understand how I can design the Taguchi's DOE (Design of Experiment). I am not aware about the rules.
I came across this equation
Ln(2^K)
Where n= number of experiments
2 = levels per factor (i.e. High & Low )
k = number of factors
But how to find N
I have seen some examples form which I am assuming N = K-1
Can anyone please explain me how to design this experiments and what are the fundamental rules?
I am very thankful for any suggestions and help, Thanks a lot in advance !
Jignesh
I came across this equation
Ln(2^K)
Where n= number of experiments
2 = levels per factor (i.e. High & Low )
k = number of factors
But how to find N
I have seen some examples form which I am assuming N = K-1
Can anyone please explain me how to design this experiments and what are the fundamental rules?
I am very thankful for any suggestions and help, Thanks a lot in advance !
Jignesh





RE: Taguchi's L8 Orthogonal array
"What's all this Taguchi stuff, anyhow?"
<humble opinion>
There are a couple of valid ideas at the core,
but..
the _program_ is snake oil.
</opinion>
Mike Halloran
Pembroke Pines, FL, USA
RE: Taguchi's L8 Orthogonal array
columns
No. exp 1 2 3 4 5 6 7
1 1 1 1 1 1 1 1
2 1 1 1 2 2 2 2
3 1 2 2 1 1 2 1
4 1 2 2 2 2 1 1
5 2 1 2 1 2 1 2
6 2 1 2 2 1 2 1
7 2 2 1 1 2 2 1
8 2 2 1 2 1 1 2
"1" means a factor at lower level and "2" means a the same factor at higher level, e.g. temperature at 1 =20deg and temp. at 2 =50 deg.
No. experiments are runs you have to perform to measure the efect of factor 1 (column 1).
The design for 7 factors need 56 runs which is fairly considerable compared to a full factorial that would need 2^7=128 separate runs.
m777182
RE: Taguchi's L8 Orthogonal array
Can anyone help me please.
Thanks
RE: Taguchi's L8 Orthogonal array
m777182
RE: Taguchi's L8 Orthogonal array
I hope I do not require 56 runs. What is your take on it.
Can we use the same format for 6 parameters? This is questioe asked by nedian.
My take will be yes?
What do you say ?
RE: Taguchi's L8 Orthogonal array
I think that the efficiency of the Taguchii design ceases with less factors.
m777182