面向自行火炮变型设计问题的混合案例推理技术研究

自行火炮设计过程中存在大量变型设计问题，为提高自行火炮设计质量和效率，将案例推理技术引入自行火炮变型设计问题求解过程中。针对自行火炮案例特点及变型设计的需求，提出了一种混合案例推理技术。通过研究基于本体的自行火炮案例表示技术，构建了自行火炮设计案例本体，并确定自行火炮案例检索过程中不同情况下的相似度计算方法。在此基础上，采用基于神经网络的参数预测技术，实现了变型设计问题中设计参数的求解。并以复进机设计为例，验证了所提出方法的可行性和有效性。

Research on Hybrid Case-based Reasoning Technique for Self-propelled Artillery Variant Design

In order to improve the design quality and efficiency of self-propelled artillery in consideration of a large number of variant design problems existing in self-propelled artillery design, the case-based reasoning technology is introduced into the solution procedure for self-propelled artillery variant design problem. The process of hybrid case reasoning is determined according to the characteristics of self-propelled artillery design case and the requirements of variant design. The ontology-based case representation technique is studied, and a self-propelled artillery design case ontology is built.The similarity calculation formulas for different scenarios are determined for the self-propelled artillery case retrieval. On this basis, the solution of design parameters for variant design problem is achieved by using neural network-based parameter prediction technique. The feasibility and effectiveness of the proposed method are demonstrated by taking recuperator design for example.