基于轮胎-路面耦合噪声的公路路面抗滑性能检测技术
Skid Resistance Detection Technology of Highway Pavement Based on Tie-Pavement Coupling Noise
叶伟 1陈飞 1胡晓阳 2徐正卫 3李立国3
作者信息
- 1. 招商局重庆交通科研设计院有限公司,重庆市 400067
- 2. 招商局重庆交通科研设计院有限公司,重庆市 400067;哈尔滨工业大学(深圳)土木与环境工程学院,广东 深圳 518055
- 3. 招商局公路信息技术(重庆)有限公司,重庆市 400067
- 折叠
摘要
为提高公路路面抗滑性能检测技术,该文在总结传统路面噪声测量方法优缺点的基础上,采用随车法采集轮胎-路面耦合噪声,并对传声器的具体位置参数进行了优化.通过行车速度-等效连续A声级拟合,实现了等效连续A声级的速度修正.利用主成分分析法提取轮胎-路面耦合噪声特征信号,可以对交通噪声、风噪、发动机噪声等干扰信号进行有效抑制,并基于第一主成分分量F1在100～1 000 Hz频段上进行积分得到包络声能,用于表征路表纹理构造激励作用下产生的轮胎-路面耦合噪声能量.最后借助SPSS数理统计软件对不同磨耗程度路段下的包络声能和横向力系数进行拟合,结果显示两者在幂函数模型下拟合优度最高,R2高达0.978.
Abstract
In order to improve the skid resistance detection technology of highway pavement,this paper summarized the advantages and disadvantages of the traditional pavement noise measurement methods,adopted the vehicle-following method to collect the tie-pavement coupling noise,and optimized the specific positional parameters of the microphone.The speed correction of the equivalent continuous A-weighted sound level was realized through the fitting of driving speed and equivalent continuous A-weighted sound level.The characteristic signal of the tie-pavement coupling noise was extracted by the principal component analysis method,and it can effectively suppress interference signals such as traffic noise,wind noise,and engine noise.The envelope noise energy(ENE)was obtained by integrating the extracted first principal component(F1)in the frequency band of 100-1 000 Hz,so as to characterize the energy of tie-pavement coupling noise generated under the excitation of road surface texture construction.Data fitting of ENE and sideway force coefficient(SFC)in road sections with different degrees of wear was carried out by using SPSS mathematical statistics software.The results indicate that the goodness of fit of ENE and SFC is the highest in the power function model,and R2 is as high as 0.978.
关键词
轮胎-路面耦合噪声/测量方法/等效连续A声级/包络声能/横向力系数Key words
tie-pavement coupling noise/measurement method/equivalent continuous A-weighted sound level/envelope noise energy/sideway force coefficient引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据