Random Character Analysis on Road Surface Profiles
The random characters of the road surface profile are discussed with the uniform distribution and the normal distribution phaseangle inputs. The inputs are investigated on the amplitudes，the probability density，the cumulative probability and the amplitude frequency.The road surface is numerical simulated as a zero means stationary Gaussian random process according to International Organization forStandardization specifications，with the two distribution types. The calculations are inspected on the frequency，the power spectral densitywith roughness coefficient varying. The surface profiles and the power spectral density curve amplitudes are depended on the coefficient,and the random characters of the input distribution are not inherited directly by the surface. Furthermore，no dominate frequency emerges inthe PSD curves.
路面轮廓 随机特征 相位角 粗糙系数 均匀分布 正态分布
李炜明 朱宏平 夏勇
华中科技大学土木工程与力学学院,湖北武汉430074;华中科技大学控制结构湖北省重点实验室,湖北武汉 430074
国内会议
北京
英文
1-5
2008-11-22（万方平台首次上网日期，不代表论文的发表时间）