CAJ | 학술논문

定量分析数控机床的可靠性对于数控机床的生产企业或者使用者来说，都有非常重要的现实意义。本文通过研究数控机床的可靠性指标，将数控机床的可靠性指标与其极值比较，建立数控机床可靠性的定量评价数学模型。我们在该模型中，用极值分布计算可靠性指标的极值，并用变异系数法确定指标的权重。试验数据的计算结果表明，该可靠性评价模型是合理可行的。
정량분석수공궤상적가고성대우수공궤상적생산기업혹자사용자래설，도유비상중요적현실의의。본문통과연구수공궤상적가고성지표，장수공궤상적가고성지표여기겁치비교，건립수공궤상가고성적정량평개수학모형。아문재해모형중，용겁치분포계산가고성지표적겁치，병용변이계수법학정지표적권중。시험수거적계산결과표명，해가고성평개모형시합리가행적。
Quantitatively analyzing reliability of numerically-controlled machine tools have vital practical signifi-cance both for their manufacturing enterprises and users. Via studying reliability indexes of numerically-controlled machine tools and comparing these indexes with their extremum,a mathematical model is established to evaluate re-liability of machine tools. In this model,extremum distribution is introduced to calculate extremum of indexes,and coefficient of variation is also used to determine weight of indexes. Result of experimental data indicates that this model was rational and feasible to evaluate reliability of machine tools.