燃气轮机非线性隔振器的动态特性

IF 3.4 Q1 ENGINEERING, MECHANICAL 国际机械系统动力学学报(英文) Pub Date : 2024-08-05 DOI:10.1002/msd2.12121
Teng Wang, Linhan Feng, Lei Zhang, Chunhui Zhang, Yue Wu
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引用次数: 0

摘要

本研究建立了燃气轮机隔振系统的理论模型,并对其进行了数值求解。还建立了一个简化的有限元(FE)模型,以确定冲击载荷下的响应。FE 模型的结果用于验证理论模型和数值求解的有效性。使用控制变量法研究了隔振器刚度、隔振器阻尼和隔振器非线性刚度系数对隔振系统冲击响应的影响。这些参数(刚度、阻尼和非线性系数)会影响燃气轮机隔振器的抗冲击设计。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Dynamic characteristics of nonlinear vibration isolator for gas turbine

In this study, a theoretical model of the vibration isolation system of the gas turbine is developed and numerically solved. A simplified finite element (FE) model was also established to determine the response under the shock load. The results of the FE model are used to verify the effectiveness of the theoretical model and the numerical solution. The influence of isolator stiffness, vibration isolator damping, and vibration isolator nonlinear stiffness coefficient on the shock response of the vibration isolation system is studied using the controlled-variable method. These parameters (stiffness, damping, and nonlinear coefficient) enter into the shock resistance design of gas turbine vibration isolators.

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Issue Information Cover Image, Volume 4, Number 3, September 2024 Design of bionic water jet thruster with double-chamber driven by electromagnetic force A data-assisted physics-informed neural network (DA-PINN) for fretting fatigue lifetime prediction Comparison of the performance and dynamics of the asymmetric single-sided and symmetric double-sided vibro-impact nonlinear energy sinks with optimized designs
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