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PM—Power and Machinery: Optimizing Design Parameters of a Mouldboard Plough

✍ Scribed by D.S. Shrestha; G. Singh; G. Gebresenbet

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
481 KB
Volume
78
Category
Article
ISSN
0021-8634

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✦ Synopsis

Owing to the complexity in designing a mouldboard plough, it has been manufactured mostly based on experience and empirical methods. In this research, a mathematical model of a mouldboard plough has been developed to design it for the minimum amount of operating energy. Using this model, a mouldboard plough requiring the least speci"c draught was designed for given soil conditions (speci"c weight of soil, cohesion, soil}metal adhesion, soil}metal frictional angle and soil internal frictional angle) and operating conditions (speed and depth of cut) for a given power availability. Five parameters were set to describe a mouldboard plough, namely width of cut, share angle, side rake angle, angular acceleration of soil inversion in the transverse plane and length of plough in the direction of travel.

The designed plough and a commercial mouldboard plough were tested in two di!erent soils in a laboratory soil bin to validate the model and to compare performance. Speci"c draught requirements were compared and it was found that the di!erence between predicted and measured speci"c draught was not signi"cant. The new plough, however, needed signi"cantly less speci"c draught than the commercial plough at identical operating conditions.

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