火箭发动机激振立交桥的模态研究

推进技术 ›› 1997, Vol. 18 ›› Issue (3): 24-27.

火箭发动机激振立交桥的模态研究

李兆民,魏英华,王守范

北京理工大学飞行器工程系!北京;100081;北京理工大学飞行器工程系!北京;100081;北京理工大学飞行器工程系!北京;100081

发布日期:2021-08-15

THE MODAL INVESTIGATION ON EXCITATION OF HIGHWAY BRIDGE BY A SOLID ROCKET ENGINE

Dept. of Flight Vehicle Engineering, Beijing Iust. of Technology, Beijing, 100081;Dept. of Flight Vehicle Engineering, Beijing Iust. of Technology, Beijing, 100081;Dept. of Flight Vehicle Engineering, Beijing Iust. of Technology, Beijing, 100081

Published:2021-08-15

摘要/Abstract

摘要： 介绍了火箭发动机用于大型钢筋立交桥激振,对北京西厢工程中菜户营立交桥和天宁寺立交桥进行振动特性试验和模态参数识别的研究情况,给出了试验结果,为桥梁的动态测试提供了一种新的激振方法。

关键词: 火箭发动机;激振器;桥梁;动态特性;振动试验

Abstract: Vibration characteristic experiment and identification of modal parameters of largescale reinforced concrete highway bridges, Caihuying and Tianningsi for Beijing Xixiang Project inexcitation by solid rocket engine are introduced. The experimental results are given and a new excitingmethod is provided for bridge dynamic measurement.

Key words: Rocket engine;Stimulator;Bridge;Dynamic characteristic;Vibration test

李兆民,魏英华,王守范. 火箭发动机激振立交桥的模态研究[J]. 推进技术, 1997, 18(3): 24-27.