当前位置: X-MOL 学术Mech. Syst. Signal Process. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Numerical and experimental analysis of the influence of elastic supports on bearing-rotor systems
Mechanical Systems and Signal Processing ( IF 7.9 ) Pub Date : 2024-12-19 , DOI: 10.1016/j.ymssp.2024.112235
Jilai Zhou, Zhong Luo, Lei Li, Tianyue Ma, Hongyu Li

The application of elastic supports and bearings has a great influence on the performance of rotor systems. However, the coupling effect between these two is ignored in the current research. The primary purpose of this work is to reveal the influence of the strong coupling effect between elastic supports and bearings on rotor systems. This is conducive to improving rotor systems and thereby improving their performance. Hence, a 5-DOF model, which considers the strong coupling effect, is proposed and integrated into an elastic support-bearing-rotor system. For comparative purposes, a bearing-rotor system model is also developed. The vibration responses of both models are analyzed in the time and frequency domains by using the Newmark-β method. By comparing the results of these analyses, the impact of elastic supports on critical speed, vibration displacements, and contact load is determined. Furthermore, variations in critical speed and vibration displacements are examined through several experiments. Both experimental and simulation results indicate that elastic supports influence rotor systems by reducing critical speed, reducing vibration displacements, and decreasing contact load.

中文翻译:


弹性支座对轴承转子系统影响的数值和实验分析



弹性支撑和轴承的应用对转子系统的性能有很大影响。然而,这两者之间的耦合效应在目前的研究中被忽视了。这项工作的主要目的是揭示弹性支撑和轴承之间的强耦合效应对转子系统的影响。这有利于改进转子系统,从而提高其性能。因此,提出了一个考虑强耦合效应的 5-DOF 模型,并将其集成到弹性支撑轴承转子系统中。为了进行比较,还开发了一个轴承-转子系统模型。使用 Newmark-β 方法在时域和频域中分析了两种模型的振动响应。通过比较这些分析的结果,可以确定弹性支撑对临界速度、振动位移和接触载荷的影响。此外,通过几个实验检查了临界速度和振动位移的变化。实验和仿真结果表明,弹性支撑通过降低临界速度、减少振动位移和减少接触载荷来影响转子系统。
更新日期:2024-12-19
down
wechat
bug