为解决双轮式摩擦仪测量模型参数的动态标定问题,提出了基于共激励源的模型参数动态标定方法,设计了反力约束型动态标定装置,通过共激励源条件下的数据序列匹配,建立双轮式摩擦仪力传感器和参考力传感器之间的数据映射关系,利用分组回归及二维最优化方法确定测量模型参数。试验表明,所提方法可有效实现双轮式摩擦仪测量模型参数的动态求解,对仪器动态试验过程中的运动状态转变具有良好的适应性,拟合的残差平方和比直接对校准全过程进行最小二乘法拟合的残差平方和减小50%以上。
Abstract
To characterize the measurement model of dual-wheel friction testers, the dynamic calibration method based on co-excitation source was proposed. In the method, counterforce constraint based dynamic calibration device was used for data collection, then data sequences matching was done, and mapping relation between the dataset of the objective sensor and that of the reference sensor was obtained. Finally, the parameters of measurement model were confirmed by grouping regression analysis and 2D optimization. The experimental results showed that the proposed method can achieve dynamic calibration of the dual-wheel friction tester′s measurement model with good adaptation to the variation of its state of motion. The residual sum of squares of fitting with the proposed method was reduced by over 50% comparing with the globle least square method.
关键词
计量学 /
摩擦测量 /
双轮式摩擦仪 /
动态标定 /
测量模型
Key words
metrology /
friction meaurement /
dual-wheel friction tester /
dynamic calibration /
measuring model
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
［1］Hall J W, Smith K L, Titus-Glover L, et al. Guide for pavement friction. NCHRP. Web-only document 108. Contractor’s Final Report NCHRP Project 01-43［Z］. Transportation Research Board of the National Academes, 2009.
［2］Cerezo V, Gothié M. Adhera Research: A new approach for pavement performance evaluation［J］. Wear, 2009, 267(5-8): 1105-1110.
［3］Jafari K, Toufigh V. Interface between tire and pavement［J］. Journal of Materials in Civil Engineering, 2017, 29(9): 04017123.
［4］ASTM E303. Standard Test Method for Measuring Surface Frictional Properties Using the British Pendulum Tester［S］. 2013.
［5］ASTM E1911 2002. Standard test method for measuring paved surface frictional properties using the dynamic friction tester［S］. 2002
［6］ASTM E670 2009. Standard Test Method for Testing Side Force Friction on Paved Surfaces Using the Mu-Meter［S］. 2009.
［7］ASTM E274 2011. Standard Test Method for Skid Resistance of Paved Surfaces Using a Full-Scale Tire［S］. 2011.
［8］和松, 夏礼秀. 高速公路路面摩擦系数的测试与评价［J］. 公路交通科技, 2002, 19(1):8-11.
He S, Xia L X. Friction Coefficient Measurement and Evaluation for Lane Surface of Highway［J］. Journal of Highway and Transportation Research and Development, 2002, 19(1):8-11.
［9］沈训龙, 徐明波, 胡训仁. MU-Meter MK6路面摩擦系数测试系统应用研究［J］. 公路交通科技(应用技术版), 2009, 5(10):37-41.
Shen X L, Xu M B, Hu X R. Application Research for Mu-Meter MK6 Pavement Friction Coefficient Testing System［J］. Journal of Highway and Transportation Research and Development (Application Technology Edition), 2009, 5(10):37-41.
［10］中华人民共和国交通运输部. JTG E60－2008公路路基路面现场测试规程［S］. 2008.
［11］Vlajic N, Chijioke A. Traceable Dynamic Calibration of Force Transducers by Primary Means［J］. Metrologia, 2016, 53(4):S136-S148.
［12］胡红波, 孙桥, 白杰. 基于窄脉冲冲击激励的压电加速度计动态校准［J］. 计量学报, 2017, 38(2): 184-188.
Hu H B, Sun Q, Bai J. Dynamic Calibration of Accelerometer Using Short Shock Excitation［J］. Acta Metrologica Sinica, 2017, 38(2): 184-188.
［13］Prilepko M Y. Calibration and Validation of Dynamic Force Transducers［J］. Measurement Techniques, 2017, 60(1):1-5.
［14］何懿才, 廖建平, 赵君辙. 数学摆台法的超低频加速度校准［J］. 计量学报, 2017, 38(4):424-428.
He Y C, Liao J P, Zhao J Z. Calibration of Ultra-low Frequency Acceleration by Mathematical Pendulum-vibration Generator Method［J］. Acta Metrologica Sinica, 2017, 38(4):424-428.
基金
国家重点研发计划(2017YFF0206305); 中央级公益性科研院基本科研业务费重点项目(2017-9057)
PDF(1134 KB)
