STUDIO DEL TRANSITORIO NELLA TRASMISSIONE DALLA P.D.P. AL VENTILATORE DI UN NEBULIZZATORE
During the use of a number of mistblowers for the orchard and vineyard protection, the overgear-box, located between the p.t.o. and the centrifugal fan, was damaged. To solve the problem we carried-out a dynamic analysis of initial no steady-state by integrating the differential equation of the impe...
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| Format: | Article |
| Language: | English |
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PAGEPress Publications
2007-03-01
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| Series: | Journal of Agricultural Engineering |
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| Online Access: | http://www.agroengineering.org/index.php/jae/article/view/97 |
| Summary: | During the use of a number of mistblowers for the orchard and vineyard protection, the overgear-box, located between the p.t.o. and the centrifugal fan, was damaged. To solve the problem we carried-out a dynamic analysis of initial no steady-state by integrating the differential equation of the impeller motion. By the obtained equations, a numerical experimentation was carried-out. It showed the gearing of a power greater than design power of the overgear box, due to impeller inertia. This result explains the overgear box damages and gave the no steady-state condition time (1,8 s), to get the rated velocity of the impeller. Finally a torque limiter assembling, between the p.t.o. and the overgear box, was proposed. A new differential equation solution and a new numerical experimentation was carried-out. It showed a reduction of the geared power to the rated value of the overgearbox, together with an increase of the no steady-state condition time to 8,7 s. |
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| ISSN: | 1974-7071 2239-6268 |