..., a possibility-based design optimization improves the failure rate, while a robust design optimization minimizes the product quality loss. In general, product quality loss is described using the first two statistical moments for aleatory uncertainty: mean and standard deviation. However, there is no metric...

... Gamma PDF is f X ( x ) = [ λ m ∕ Γ ( m ) ] ( x − a ) m − 1 exp [ − λ ( x − a ) ] . Therefore, even for small data samples (3, 5), we use the normal PDF and the shifted Gamma PDF to fit the data. In possibility, we can minimize...