测压传压管路系统动态特性的试验分析  

Experimental investigation on the dynamic characteristics of tubing systems for fluctuating wind pressure measurements

作　　者：王维新[1] 谢壮宁[2] 

机构地区：[1]西安文理学院机械电子工程系,陕西西安710002 [2]汕头大学土木系,广东汕头515063

出　　处：《西北大学学报（自然科学版）》2005年第4期392-396,共5页Journal of Northwest University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(50478118);广东省自然科学基金资助项目(010455)

摘　　要：目的为得到脉动风压测压管路的动态特性。方法采用周期激励方法的试验方法,并用多项式回归方法对试验结果进行回归处理,给出了传压管路的频率响应函数。结果用简单的6阶多项式的形式便可以较好地拟合不同长度测压管路的频率响应函数。结论由回归得到的管路频率响应函数用于对实际管路脉动风压测试结果进行修正,结果较为满意,证明本文方法的有效性。Aim In order to get the model of the dynamic characteristics of tubing system in fluctuating wind pressure measurement. Methods Using periodic pressure signals exciting and regressions. Results The dynamic characteristics of tubing system were also discussed. The results show that the frequency response functions of the tubing systems can be well fitted by a six orders polynomial. Empirical formula for the frequency response functions are proposed and applied to revise the distorted wind pressure signal. Conclusion The result verifies the validity of the proposed formula.

关 键 词：脉动风压测量 风洞试验 管道 频响函数 

分 类 号：TU312.1[建筑科学—结构工程] V211.7[航空宇航科学与技术—航空宇航推进理论与工程]