Effects of components Deterioration on Helicopter operation in hostile environment

Marcus Aul M., Ibrahim Ali Kachalla, Chikeluba Uchenna N., Ohemu Monday Fredrick

Abstract


Operation of helicopter in dusty areas is capital expensive. Frequent engine maintenance is associated with consistent operation in such area. This amounts to high maintenance and operation costs which may lead the operator to operate by cutting corners. Consistent and prolonged operation in the hostile areas causes primarily blade and vane erosion as well as fouling. In this work a typical small helicopter engine (which have a service ceiling of 3810m) has been modelled and simulated at both clean, off design point and degraded conditions at different altitudes. The deteriorated engine performance which is indicated by lower shaft power output, reduction in engine acceleration, reduced compressor discharge pressure and possibly compressor surge is discussed in this work.


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