基于不确定度理论的环境修正值的计算  

Calculation of Environment Correction Value Based on Uncertainty Theory

作　　者：韩国华[1] 靳晓雄[1] 袁卫平[2] 

机构地区：[1]同济大学汽车学院,上海201804 [2]上海内燃机研究所环境工程室,上海200438

出　　处：《振动．测试与诊断》2007年第2期142-145,共4页Journal of Vibration,Measurement & Diagnosis

摘　　要：不确定理论摈弃了传统的“系统误差”和“随机误差”的分类方法,而是将不确定度按照测量数据的性质分为A类不确定度和B类不确定度。不确定度科学地反映了测量结果的数值和可靠程度。目前,在内燃机行业中,一直用绝对比较法一进行环境修正,并且还未引入不确定度理论对其进行评价。本文采用绝对比较法二来进行环境修正,并且引入不确定理论对其进行评价,在具体实例的基础上,推导给出了环境修正值的不确定度表达式。Uncertainty theory abandons the traditional theory of classification in systematic error and random error,while classifies it into uncertainty A and uncertainty B.Uncertainty theory scientifically reflects the reliability of measurement result data.At present,absolute comparative method one is always used to correct the environment,and uncertainty theory isn't used to evaluate it.This paper takes absolute comparative method two to evaluate the environment correction value with uncertainty theory.On the basis of a concrete example,formulas of environment correction and uncertainty measurement are derivated.Therefore,advance the uncertainty measurement application in I.C.engine,and make a solid basis for more noise reduction in engines.

关 键 词：不确定度 内燃机 噪声 环境修正 绝对比较法二 

分 类 号：TB132[理学—物理]