CAJ | 학술논문

为满足工艺对比评价的应用需求,提出面向某型号飞机大部件自动对接装配系统的工艺选优方法.以数据库中的装配实例为数据源,详细阐述效能函数、费用函数、效能费用比的计算过程,并给出简化的评价模型.采用非参数统计思想,通过二维列联表的独立性检验实现工艺路线和工艺性能的相关性分析.通过Wilcoxon秩和检验方法,实现工艺路线的选优求解.为减少随机因素的影响,引入模糊聚类方法,完成典型实例集的工艺选优求解.计算实例表明,该方法能够从历史数据得到统计推断性结论,目标是选取较优的装配工艺、形成装配知识、控制装配费用、提高飞机装配的准确度和效率.
위만족공예대비평개적응용수구,제출면향모형호비궤대부건자동대접장배계통적공예선우방법.이수거고중적장배실례위수거원,상세천술효능함수、비용함수、효능비용비적계산과정,병급출간화적평개모형.채용비삼수통계사상,통과이유렬련표적독립성검험실현공예로선화공예성능적상관성분석.통과Wilcoxon질화검험방법,실현공예로선적선우구해.위감소수궤인소적영향,인입모호취류방법,완성전형실례집적공예선우구해.계산실례표명,해방법능구종역사수거득도통계추단성결론,목표시선취교우적장배공예、형성장배지식、공제장배비용、제고비궤장배적준학도화효솔.
To satisfy the requirements of technological comparison and evaluation during aircraft automatic join-assembly, a methodology of optimal selection for certain type airplane is proposed. Calculation procedures as well as simplified models for effectiveness function, cost function and effectiveness-cost ratio are described by utilizing the assembly examples in database as the data source. Based on nonparametric statistical method, independence test of 2-way contingency table is introduced to analyze the correlation between technological routine and technological performance. Then optimal selection and solution of technological routine is realized through Wilcoxon rank-sum test. To reduce the influence of random factors, fuzz cluster procedure is introduced. Thus optimal selection and solution of technology of typical example sets is realized. The application instance indicates that statistical conclusions can be deduced from historical data by using this method and the objective is to select a superior assembly technology, obtain assembly knowledge, control assembly cost, and improve the accuracy and efficiency of aircraft assembly.