English

应用科学学报 ›› 2004, Vol. 22 ›› Issue (3): 380-383.

• 论文 • 上一篇    下一篇

多自由度管系气柱固频振动消减树状算法研究

吕林涛1, 崔杜武1, 吕晖2   

  1. 1 西安理工大学计算机学院 陕西西安 710048;
    2 重庆大学土木工程学院 重庆 400045
  • 收稿日期:2003-06-30 修回日期:2003-11-24 出版日期:2004-09-30 发布日期:2004-09-30
  • 作者简介:吕林涛(1954-),男,陕西西安人,副教授,硕士;崔杜武(1945-),男,陕西西安人,教授,博导.

The Tree-Structure Algorithm for the Elimination-Reduction of Air-Column-Inherent Frequency in the Multi-degree-of-Freedom Piping System

LÜ Lin-tao1, CUI Du-wu1, LÜ Hui2   

  1. 1. Department of Computer and Engineering, Xi'an University of Technology, Xi'an 710048, China;
    2. College of Civil Engineering, Chongqing University, Chongqing 400045, China
  • Received:2003-06-30 Revised:2003-11-24 Online:2004-09-30 Published:2004-09-30

PDF

46

摘要： 为了避免多自由度管路系统的气柱固有频率和机械固有频率的共振,基于小波分析、应用数学、数据结构等理论,提出了一种解决多自由度管路系统气柱固有频率振动消减的树状几何模型及树状算法.将由该算法设计的软件系统用于实际工程管路系统振动分析,证明其计算结果与实测结果吻合很好.本算法对于石油、化工、电力等行业的管路系统设计或用于老厂挖潜改造管路系统设计都具有一定的理论和实用价值.

关键词: 共振, 气柱固有频率, 振动消减, 树状算法, 树状几何模型, 多自由度管路系统

Abstract: Based on such theories as wavelet analysis, applied mathematics and data structure, the tree-structured geometrical model and algorithm for the elimination-reduction of air-column-inherent frequency were proposed in order to avoid resonance between the air-column-inherent frequency of the multi-degree-of-freedom piping system and the mechanical-inherent frequency. By applying the software system based on this algorithm to the fluctuation analysis of a piping system, it was found that its calculation coincide with the experimental results very well. Therefore, it has both theoretic and practical value to the designing of a new piping system and the rebuilding of an old one in petroleum, chemical and electric power industries.

Key words: elimination-reduction, tree-structured geometrical model, multi-degree-of-freedom piping system, sympathetic fluctuation, air-column inherent frequency, tree-structured algorithm

中图分类号: