管道系统动力特性的近似计算

Approximate Calculation of Dynamic Characteristics of Piping Systems

运用能量法的原理，提出了近似计算连续梁基本频率和三维任意走向复杂管道系统３个低阶重要振型及频率的方法，并用算例比较了本文方法与精确方法的计算结果．

On the principle of energy method, new procedures are proposed for approximate calculation of the fundamental frequency of continuous beams and three important lower mode shapes and frequencies of 3-D complicated piping systems. A real-life piping system and other examples are calculated using the proposed method and the results are compared with the exact solutions from the dynamic analyses.