论文部分内容阅读
液体火箭发动机推力室的设计和制造是一项极其复杂的系统工程,其性能参数、结构形式、组织方式、材料等的选择尤其依赖于设计人员丰富的经验和成功研制型号积累的设计知识。为实现对以往设计经验和知识的继承,在推力室的设计中引入了基于案例推理(CBR,case-based reasoning)的方法。基于案例推理的方法作为人工智能领域的一个重要分支,是指将过去对典型问题的求解事例,按一定的组织方式存储起来,积累成案例库,当用户求解某一新问题时,利用该案例库来指导进行求解的一种策略。根据液体火箭发动机推力室的设计内容、设计流程以及设计特点,得出推力室性能参数关系图,并基于案例推理的方法提出了推力室的案例表示方法和案例调整方案,并应用该调整技术实现了具体的案例调整。
The design and manufacture of liquid rocket motor thrust chambers is an extremely complex system engineering. The choice of performance parameters, structure, organization, materials, etc. depends, in particular, on the rich experience of designers and the accumulated design knowledge of successful development models. In order to realize the succession of the past design experience and knowledge, a case-based reasoning (CBR) method was introduced into the thrust chamber design. Case-based reasoning method as an important branch of artificial intelligence field, refers to the past to resolve typical cases of cases, according to a certain organization stored up, accumulated into a case base, when the user to solve a new problem, the use of the case Library to guide the solution of a strategy. According to the design content, design flow and design features of thrust chamber of liquid rocket engine, the relationship diagram of thrust chamber performance parameters is obtained. Based on the case-based reasoning method, a case presentation method and a case adjustment scheme for thrust chamber are proposed. The adjustment technique is applied The specific case adjustment.