复杂测压管路系统动态特性的通用分析程序

利用流体管道耗散模型 ,建立可用于计算复杂传压管路动态特性的方法和通用计算程序 ,结果用于脉动风压测量的畸变信号修正 .与相关文献比较 ,使用本方法可以灵活地处理更为复杂的管路情况 .定义了衡量管路动态特性品质的控制目标函数 ,并导出了该函数对各种管路参数灵敏度的解析表达式 ,以便于提高管路优化计算的效率 .最后结合两个算例 ,证明了本方法的有效性 .根据计算结果 ,推荐了适合于简单逐点测压试验应用的一组简单优化管路配置方案 ,可供脉动风压测试风洞试验中的传压管路设计时参考 .

General Arithmetic to Analyze Dynamic Characteristics of Complex Tubing System for Fluctuating Wind Pressure Measurements

Using an existing theoretical model,a general arithmetic to analyze the dynamic characteristics of the complex piping system was proposed in this paper.This proposed arithmetic,compared with other literatures,has more flexibility and efficiency to deal with a more complex piping system.The object function that characterizes the dynamic characteristics of the piping system was defined,and the analytic sensitivity expression of the object function with respect to the tubing parameters were also derived.Piping system optimizations were carried out.The examples show the efficiency of the proposed method with which the complex tubing system can be designed to give a better dynamic characteristic for dynamic wind pressure measurements.And some optimized piping systems were proposed finally.