Optimization of Automotive Suspension System by Design of Experiments: A Nonderivative Method

Table 2

Levels of influential parameters in full factorial design.

Factors	Low (−1)	High (+1)
Spring stiffness (ks), N/mm	18000	26000
Damping coefficient (cs), N-s/m	418	673
Mass (), kg	41	81
Speed (), RPM	150	250