噪声与振动控制Issue(3)：30-33,4.DOI:10.3969/j.issn.1006-1335.2014.03.007
管道系统时域响应的传递矩阵计算方法
Transfer Matrix Method for Analysis of Time-domain Response of Pipeline System
张志鑫 1柳贡民 2李帅军2
作者信息
- 1. 海军驻哈尔滨汽轮机厂有限责任公司军事代表室，哈尔滨 150046
- 2. 哈尔滨工程大学 动力与能源工程学院，哈尔滨 150001
- 折叠
摘要
Abstract
Based on the 12-equation model of fluid flow pipelines, constructing time-domain response functions by Fourier series expansion and applying the numerical inversion of Laplace transform to the transfer matrix method (TMM) for solution, the time-domain transient response simulation of pipelines is realized. The algorithm for solving time-domain steady response by undetermined coefficients method is employed, which can suppress the instability of the inverse Laplace transform in the solving process. To illustrate the practical implementation of the proposed methods, a pipeline system, which contains straight pipe, curved pipe, pipeline with elastic supports, and a cantilever pipe, is analyzed as an example, and the results are compared with those of finite element simulation. It is found that the results of proposed models and algorithm for the pipelines are close to the results of finite element simulation by means of ANSYS code. The feasibility of this method for solving the time-domain dynamics problems of the actual fluid-flow pipelines is validated.关键词
振动与波/时域响应/传递矩阵/Laplace逆变换/待定系数法Key words
vibration and wave/time-domain response/transfer matrix method/inverse Laplace transform/undetermined coefficients method分类
通用工业技术引用本文复制引用
张志鑫,柳贡民,李帅军..管道系统时域响应的传递矩阵计算方法[J].噪声与振动控制,2014,(3):30-33,4.
