Abstract
Thermal management of industrial vehicles is severe due to heavy load and low traveling speed under operation. And amount of noise exposure tends to increase compared to passenger cars because the industrial vehicles often stay in an area for a long time. Speed-up of a cooling fan and enlarging open area on an engine compartment enhance cooling performance but noise exposure rises. Therefore means to satisfy both of the thermal management and the low noise are required in design of industrial vehicles. In this study, non-parametric sensitivity analysis has been applied to an engine compartment of an agricultural tractor to obtain sensitivity on design variables to coolant temperature. The non-parametric sensitivity analysis has brought in less computational load compared to conventional parametric approach regarding the engine compartment design.
