Reconstruction schemes of load and constraint for global vibration evaluation of pipeline structures

IF 1.1 4区 工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
X. Gao, Hong-en Chen, Yong Li, Shuyun Li, Hui Chen, M. Wang, Sa Yang, Shuxia Tian, Zhen Chen
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引用次数: 0

Abstract

In this paper, inversion schemes for reconstruction of load and constraint of pipeline structure of a liquid rocket engine for global vibration evaluation of pipelines has been proposed and validated. The method involves modeling for forward simulation of random vibration and a multistep inversion scheme to reconstruct the unknown load and constraint parameters. In parallel, a piping structure vibration experimental system was also established to acquire the measured vibration signals for experimental validation of the numerical method. From both the numerical and experimental results, it was verified that a fine finite element model of a pipeline structure can be established based on the reconstructed load and constraint parameters which enables a global vibration evaluation of the pipeline structure based on limited vibration information.
管道结构整体振动评估的荷载与约束重构方案
针对某型液体火箭发动机管道结构的整体振动评估,提出了用于管道结构载荷和约束重构的反演方案并进行了验证。该方法包括对随机振动的正演模拟建模和对未知载荷和约束参数的多步反演方案。同时,建立了管道结构振动实验系统,采集了实测振动信号,对数值方法进行了实验验证。数值和实验结果验证了基于重构载荷和约束参数建立管道结构精细有限元模型的可行性,实现了基于有限振动信息的管道结构整体振动评估。
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来源期刊
CiteScore
1.70
自引率
0.00%
发文量
100
审稿时长
4.6 months
期刊介绍: The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are: Physics and mechanics of electromagnetic materials and devices Computational electromagnetics in materials and devices Applications of electromagnetic fields and materials The three interrelated key subjects – electromagnetics, mechanics and materials - include the following aspects: electromagnetic NDE, electromagnetic machines and devices, electromagnetic materials and structures, electromagnetic fluids, magnetoelastic effects and magnetosolid mechanics, magnetic levitations, electromagnetic propulsion, bioelectromagnetics, and inverse problems in electromagnetics. The editorial policy is to combine information and experience from both the latest high technology fields and as well as the well-established technologies within applied electromagnetics.
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