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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part C. Journal of mechanical engineering science >Optimization of pipeline system with multi-hoop supports for avoiding vibration, based on particle swarm algorithm
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Optimization of pipeline system with multi-hoop supports for avoiding vibration, based on particle swarm algorithm

机译：利用多箍支撑避免振动的管道系统优化，基于粒子群算法

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摘要

In the dynamics design of aero-engine pipeline systems, it is necessary to avoid the excitation frequency of the engine (mainly including the rotational frequencies of high pressure and low pressure rotor systems) to improve the operational reliability of the pipeline system. In this study, a single-pipe system with multi-hoop supports was chosen as the research object, and a method based on the particle swarm algorithm was developed to optimize the layout of the hoops for effectively avoiding vibration of the pipeline system. A finite element model (FEM) of the pipeline system was created and the group of spring elements with non-uniform distribution of stiffness values was used to simulate the hoop support for improving the analysis accuracy of the model in the modeling process. Taking the hoop position as design variable, an optimization model of the pipe hoop layout was established, which aims at avoiding one or two excitation frequencies at the same time. Furthermore, the calculation procedure of optimizing pipe hoop layout using the particle swarm algorithm was given. Finally, a case study was carried out, the rationality of the created FEM was validated by experiments, and the optimal layout of hoops was obtained using the proposed optimization method.
机译：在航空发动机管路系统的动力学设计中，为了提高管路系统的运行可靠性，需要避免发动机的激励频率（主要包括高压和低压转子系统的旋转频率）。本研究以具有多个环箍支撑的单管系统为研究对象，开发了一种基于粒子群算法的环箍优化布置方法，以有效避免管道系统的振动。为了提高建模过程中模型的分析精度，建立了管道系统的有限元模型，并采用刚度值分布不均匀的弹簧单元组来模拟环向支架。以环箍位置为设计变量，建立了管道环箍布置的优化模型，旨在避免同时出现一个或两个激励频率。在此基础上，给出了用粒子群算法优化管箍布置的计算过程。最后进行了算例分析，通过实验验证了所建立的有限元模型的合理性，并利用所提出的优化方法得到了环箍的最优布置。

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