拖拉机最大提升力不确定度评定  

Uncertainty Evaluation of Maximum Lifting Force for Tractor

作　　者：王扬光 于桂英 王庆厚 WANG Yangguang;YU Guiying;WANG Qinghou(China Agricultural Mechanization Center,Ministry of Agriculture and Rural Affairs,Beijing 100122,China)

机构地区：[1]农业农村部农业机械化总站,北京100122

出　　处：《农业工程》2021年第9期76-78,共3页AGRICULTURAL ENGINEERING

摘　　要：最大提升力测试是拖拉机性能试验中基本的且必做项目,不确定度是评判实验室检测质量水平的依据之一。依据不确定度相关理论知识,以试验测量数据为基础,分步骤开展拖拉机最大提升力不确定度评定,得到测试过程的扩展不确定值为0.17 kN。对比不确定度来源各分量的数值大小,得出所在实验室拖拉机最大提升力试验质量控制能力较高。Maximum lifting force test is a basic and necessary item in tractor performance test,the uncertainty is one of base to judge quality level of laboratory testing.Uncertainty of tractor maximum lifting force was evaluated based on theory of uncertainty and test data step by step,and results of uncertainty value was 0.17 kN.Comparing of influence of uncertainty items,it was cleared that tractor maximum lifting force test in test center was in control.

关 键 词：拖拉机 不确定度 最大提升力 液压悬挂装置 

分 类 号：S219.01[农业科学—农业机械化工程]