用于刚体定轴旋转控制的新型增强型扭转涡流阻尼器

IF 4.6 2区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Shuai Wang, Zhengqing Chen, Wenxi Wang, Tianfu Yu, Hongyi Zhang, Xugang Hua
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引用次数: 0

摘要

控制刚体定轴转动的角速度对于确保民用建筑和机械系统的安全性和功能性至关重要。本研究提出了一种新型增强扭转涡流阻尼器 (ETECD),用于在有限的安装空间内有效控制刚体的角速度。首先,我们开发了一种估算方法来确定有限安装空间内电涡流阻尼器(ECD)的阻尼系数。此外,我们还利用齿轮箱来增强 ECD 在有限空间内的阻尼性能。为了建立拟议 ETECD 的设计框架,我们推导了旋转体的运动方程和解法。通过分析带有扭转粘性阻尼器的旋转体响应的近似解,得出了扭转阻尼系数的要求范围。该范围可确保在线性角度相关扭矩下符合速度限制,为 ETECD 的设计提供指导。ETECD 由两个圆柱形扭转涡流阻尼器 (ECD) 和一个运动放大齿轮箱组成,针对旋转体进行了设计和测试。通过数值示例和实验测试验证了所提出的 ETECD 的性能。数值示例中计算的阻尼系数和预测的控制性能与实验结果非常吻合。值得注意的是,在最小和最大扭矩下,旋转体的末端角速度(TAV)可分别显著降低 70.76% 和 58.99%。这项工作强调了 ETECD 作为一种有效、经济的方法在降低旋转体角速度方面的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A Novel Enhanced Torsional Eddy Current Damper for Fixed-Axis Rotation Control of Rigid Bodies

A Novel Enhanced Torsional Eddy Current Damper for Fixed-Axis Rotation Control of Rigid Bodies

The control of angular velocities in the fixed-axis rotation of rigid bodies is crucial for ensuring the safety and functionality of civil structures and mechanical systems. In this research, a novel enhanced torsional eddy current damper (ETECD) is proposed to effectively control the angular velocities of rigid bodies within confined installation spaces. At first, an estimation approach is developed to determine the damping coefficient of the eddy current damper (ECD) within limited installation space. Furthermore, we utilize a gearbox to enhance the damping performance of the ECD in confined spaces. To establish the framework for the design of the proposed ETECD, the motion equation and solution of the rotating body are derived. By analytically presenting the approximate solution for the responses of a rotating body with a torsional viscous damper, the required range of the torsional damping coefficient is derived. This range ensures compliance to velocity restrictions under linearly angle-related torques, guiding the design of the ETECD. The ETECD, comprising two cylindrical torsional eddy current dampers (ECDs) and a motion-amplified gearbox, is designed and tested for a rotating body. Numerical examples and experimental tests are carried out to validate the performance of the proposed ETECD. The calculated damping coefficients and predicted control performance in the numerical examples agree well with the experimental results. Notably, under the minimum and maximum torques, the terminal angular velocity (TAV) of the rotating body can be significantly reduced by 70.76% and 58.99%, respectively. The proposed work emphasizes the potential of the ETECD as an effective and economic method in reducing angular velocities for rotating bodies.

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来源期刊
Structural Control & Health Monitoring
Structural Control & Health Monitoring 工程技术-工程:土木
CiteScore
9.50
自引率
13.00%
发文量
234
审稿时长
8 months
期刊介绍: The Journal Structural Control and Health Monitoring encompasses all theoretical and technological aspects of structural control, structural health monitoring theory and smart materials and structures. The journal focuses on aerospace, civil, infrastructure and mechanical engineering applications. Original contributions based on analytical, computational and experimental methods are solicited in three main areas: monitoring, control, and smart materials and structures, covering subjects such as system identification, health monitoring, health diagnostics, multi-functional materials, signal processing, sensor technology, passive, active and semi active control schemes and implementations, shape memory alloys, piezoelectrics and mechatronics. Also of interest are actuator design, dynamic systems, dynamic stability, artificial intelligence tools, data acquisition, wireless communications, measurements, MEMS/NEMS sensors for local damage detection, optical fibre sensors for health monitoring, remote control of monitoring systems, sensor-logger combinations for mobile applications, corrosion sensors, scour indicators and experimental techniques.
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