脉动风压实测管路系统频率响应特性研究  

Study on the frequency response characteristics of tube system for field measurement fluctuating pressure

作　　者：胡尚瑜[1,2] 王栖[2] 聂功恒 邢心魁[1,2] 

机构地区：[1]广西岩土力学与工程重点试验室,广西桂林541004 [2]桂林理工大学土木与建筑工程学院,广西桂林541004

出　　处：《中国科技论文》2016年第1期110-114,共5页China Sciencepaper

基　　金：国家自然科学基金资助项目(51308140);广西自然科学基金资助项目(2013GXNSFBA019232;2015GXNSFAA139251);广西岩土力学与工程重点试验室立项项目(12-A-02-011);广西高校科研项目(2013YB104)

摘　　要：基于声音振动原理开展了风压实测T型管路系统频率响应特性试验研究,分析了T型测压管路系统中各部分管路长度和相关直径等因素对测压管路系统频率响应特性的影响规律.结果表明：在现场实测工作频率（0～20Hz）内,T型管路各部分长度和相关直径变化对频率响应函数的影响不大,该测压管路系统具有较好的适应性和测试精度;同时,基于流体管路耗散理论模型,建立了T型管路系统传递函数方程,并借助Matlab软件编程进行了理论分析,数值计算结果与试验结果基本一致,验证了本文T型管路系统理论计算方程的准确性.The dynamic frequency response characteristics of pressure measured Tee junction tube system were investigated by dynamic pressure response experimental methods based on the principles of sound vibrations induced pressure.The effect of the Tee junction tube system components length and diameter on dynamic frequency responses functions was studied.The results indicate that the Tee junction tube system has good adaptability and test precision.Meanwhile,the variation of tubing length has little influence in the low frequency range(0-20 Hz)which is close to field measurement.In addition,The Tee junction tube system transfer function was proposed based on the dissipative model and the dynamic frequency response was predicted by Matlab software tools.Furthermore,the method was verified by the fact that the estimated values were in accordance with the experimental results.

关 键 词：脉动风压 测压管路 频率响应函数 现场实测 

分 类 号：TU312.1[建筑科学—结构工程]