Ascertaining Shearer Design Plan Based on Quantization of Weight of Multiple Attributes

ABSTRACT

To eliminate the instability in deciding upon shearer design plans and take into full account of relevancy among shearers’ attributes, the authors propose a way to ascertain the weight of multiple attributes on the basis of sensitivity analysis. With this method, one can work out a matrix through 3-level quantization criteria to compare attributes and then sort design plans accordingly; with interrelationship constraint of multiple attributes, one can obtain the variation range of weight of these attributes that has no impact on the ranking of design plans and identify the significant attribute so as to reach the optimal plan. This method has been proven feasible and practical through sorting the overall performance of design plans of the whole shearer and 6 torque-axis unload grooves in the cutting unit of a shearer.

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