基于熵权的火炮内弹道优化设计

Optimization Design of Gun Interior Ballistics Based on Information Entropy

火炮内弹道优化设计属于一类多指标决策问题,问题的求解通常需要专家提供关于指标的权重信息,而专家权重信息具有一定的主观性和不确定性,基于信息熵的熵权信息能够强化各方案对指标的贡献程度,弱化指标间的相似性,具有相对的客观性。综合考虑客观熵权和专家主观权重的评价方法,能够通过客观的熵权信息来调整专家主观权重的偏差,使得弹道方案的优化结果更为合理。某型火炮的弹道方案优化设计结果表明,该方法合理有效。

The optimal design of gun interior ballistics is a kind of multi-attribute decision problem, its solution often depends on the selection of weighting information provided by experience of experts, but the weighting information provided by experts have a certain degree of subjectivity and uncertainty, so the solution lacks in objectivity. The entropy weighting information based on information entropy can strengthen contribution of each scheme, weaken the analogy between attributes. Therefore the entropy weighting method has more objectivity. To take account of the methods which are respectively based on the objective entropy weighting method and the expert subjective weighting method synthetically, the deviation of expert subjective weighting method can be adjusted by the objective entropy weighting method, and the optimization result of ballistics design is more rational. This method was adopted in optimal design of a type of gun interior ballistics, and the results showed that the method is rational and effective.