转鼓试验台测量结果的不确定度评定

Uncertainty Evaluation of Measurement Result of Drum Test Rig

转鼓试验台是拖拉机在室内模拟道路试验的一种常用的整车性能试验装置。为了提高拖拉机在转鼓试验台上测量准确度和试验质量,简要介绍了转鼓试验台的工作原理,分析了影响测量结果误差的各个因素,并结合测量不确定度的理论,对引入的测量不确定度分量进行了合成标准不确定度和扩展不确定度的评定,也为检定和校准其他类似仪器提供科学的测量校准方法。

In order to improve the measurement accuracy and test quality of the tractor on the drum test bench,the working principle of rotary drum test rig is briefly introduced,the factors that affect the measurement error are analyzed,and connecting with the theory of measurement uncertainty,the synthetic standard uncertainty and expanded uncertainty are calculated and evaluated on the basis of measurement uncertainty component,and which can provide a scientific measurement calibration method for verification and calibration of other similar instruments.