机床与液压
機床與液壓
궤상여액압
MACHINE TOOL & HYDRAULICS
2014年
19期
191-194
,共4页
数控机床%截尾%威布尔分布%可靠性
數控機床%截尾%威佈爾分佈%可靠性
수공궤상%절미%위포이분포%가고성
NC machine tool%Truncated%Weibull distribution%Reliability
通过对一系列数控机床截尾故障数据进行了收集整理，假设数据服从二参数威布尔分布并求得相关参数，同时进行了相关性检验和假设检验的验证，得出了该批数控机床故障间隔时间分布的数学模型，进而确定了数控机床可靠性的相关指标，机床的观测值、点估计及区间估计等指标值为机床可靠性研究提供了参考。
通過對一繫列數控機床截尾故障數據進行瞭收集整理，假設數據服從二參數威佈爾分佈併求得相關參數，同時進行瞭相關性檢驗和假設檢驗的驗證，得齣瞭該批數控機床故障間隔時間分佈的數學模型，進而確定瞭數控機床可靠性的相關指標，機床的觀測值、點估計及區間估計等指標值為機床可靠性研究提供瞭參攷。
통과대일계렬수공궤상절미고장수거진행료수집정리，가설수거복종이삼수위포이분포병구득상관삼수，동시진행료상관성검험화가설검험적험증，득출료해비수공궤상고장간격시간분포적수학모형，진이학정료수공궤상가고성적상관지표，궤상적관측치、점고계급구간고계등지표치위궤상가고성연구제공료삼고。
By collecting and packing up a series of numerical control (NC)machine tool truncated failure data,the data were assumed to be two parameter Weibull distribution and related parameters were obtained. At the same time,the relevant inspection and test of hypothesis were validated,and the mathematical model of batch of NC machine tool failure interval time distribution was conclu-ded. Moreover the related index of reliability of NC machine tools are determine,as well as its observation values,point and region es-timation,and etc. ,which provide reference for reliability research of the machine tool.
