摘要
在研究路面谱测量原理过程中,发现平稳过程自谱密度的运算有两个值得探讨的问题出现在公开发表的文章中。笔者运用随机振动基础理论,经过仔细推导得出正确的表达式,与TSO8608及GB7031—86取得一致的结果。从而为第五轮测量路面谱计算公式的建立铺平了道路。
Tn the process of researching into principle of road pavement spectrum measurement, it is noticed that there are two worth discussing problems which are explained in the openly published papers. Author, using the basic theory of random vibration, has obtained a right expression by attentive derivation and the same result with TSO 8608 and GB 7031—86. This paves the way for establishing an equation to calculating road pavement spectrum measurement by fifth wheel.
关键词
时间频率
空间频率
路面谱
密度
time frequency
space frequency
power spectrum density
