弹性元件集中力刚度试验的不确定度评定  

Uncertainty Evaluation in Concentrated Force Spring Rate Test of Elastic Element

作　　者：李晓旭[1] 王俊东 冯波 李鹏程[1] 张立佳[1] 李琳[1] 王健[1] LI Xiao-xu;WANG Jun-dong;FENG Bo;LI Peng-cheng;ZHANG Li-jia;LI Lin;WANG Jian(National Supervising and Testing Center for the Quality of Instruments and Components,Shenyang 110043,China;Martinrea(Shenyang)Automotive Components Co.,Ltd.,Shenyang 110000,China)

机构地区：[1]国家仪器仪表元器件质量监督检验中心,辽宁沈阳110043 [2]玛汀瑞亚(沈阳)汽车零部件有限公司,辽宁沈阳110000

出　　处：《管道技术与设备》2020年第5期23-24,62,共3页Pipeline Technique and Equipment

摘　　要：文中主要按JB/T 6169—2006《金属波纹管》中的轴向刚度试验,使用弹性元件有效面积测试仪对弹性元件进行了集中力刚度试验。分别通过对集中力和位移测试结果的不确定度评定,进一步计算出集中力刚度试验结果的不确定度,最终计算得到集中力刚度测试结果的相对扩展不确定度为0.052%,且从集中力和位移的不确定度结果来看,位移测量结果引入的不确定度是评定结果的主要贡献量。In this paper,according to the axial stiffness test in JB/T 6169—2006 Metal Bellows,the effective area tester of elastic element was used to carry out the concentrated force stiffness test on elastic elements.By evaluated the uncertainty of the test results of the concentrated force and displacement,the uncertainty of the test results of the concentrated force stiffness was further calculated.The relative extended uncertainty of the stiffness test results of the concentrated force is calculated as 0.052%,and from the result of uncertainty of concentration force and displacement,the uncertainty introduced by displacement measure-ment result was the main contribution of evaluation result.

关 键 词：弹性元件 刚度试验 集中力 位移 不确定度 

分 类 号：TH703[机械工程—仪器科学与技术]