Sensitivity study of a valve recession model

The aim of this work was to carry out a sensitivity analysis of a valve recession model. For the sensitivity study, the effects of the param eters on the valve recession mode l were investigated, for both, light duty and heavy duty engines. It was seen that for light duty engines, the impact component parameters had the gr eatest effect on valve recession and for heavy duty engines the sliding wear component p arameters have an increasing con- tribution to the overall valve recession.