基于颗粒阻尼技术的集装箱起重机减振机理与实验研究

IF 2.2 3区 工程技术 Q2 ENGINEERING, MECHANICAL
Actuators Pub Date : 2023-12-28 DOI:10.3390/act13010011
Fangping Ye, Xinyi Xue, Weijie Jiang, Xiyan Yin
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引用次数: 0

摘要

集装箱起重机已广泛应用于港口作业。然而,港口集装箱起重机结构庞大,在振动和强风作用下总会导致起重机损坏。因此,提出了一种基于粒子阻尼技术的集装箱起重机结构减振方法。本次研究建立了比例为 1:80 的起重机模型,并建立了等效力学模型,初步验证了抑振效果。此外,还通过实验分析了抑振效果与阻尼器关键参数,即填充材料、填充率、颗粒大小和阻尼器安装位置的关系。结果表明,Simulink 示波器显示的起重机结构振动峰值减弱且滞后,安装阻尼器可为起重机带来抑振效果,抑振效果达到 25%;在阻尼器填充材料具有较大密度和弹性模量、足够的碰撞空间和较高的碰撞频率、阻尼器安装位置远离起重机重心的条件下,起重机模式获得了最佳抑振效果。实验得出的阻尼器最佳参数为 12 毫米铅珠,填充率为 60%,安装在起重机前臂强度范围内的远端。由此得出结论,颗粒阻尼技术为集装箱起重机提供了一种有效的减风减震方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mechanism and Experimental Investigation of Vibration Reduction for Container Cranes Based on Particle Damping Technology
Container cranes have been widely used for port operation. However, the structure of the port container crane is large, which always leads to crane damage under vibration and strong wind. Therefore, a method for vibration reduction of container crane structure based on particle damping technology is proposed. In this investigation, the scale 1:80 crane model is built, and the equivalent mechanical model is also established to preliminarily verify the effect of vibration suppression. Furthermore, the dependence of vibration suppression effect on the key parameters of the damper, i.e., filling material, filling rate, particle size, and installation position of dampers are analyzed through experiments. The results indicate that the vibration peak of the crane structure displayed in the Simulink oscilloscope is weakened and lags behind, the installation of the damper brings the effect of vibration suppression for the crane, and the vibration suppression effect reaches 25%; the crane mode obtains the best vibration suppression effect under the condition that the material filled in the damper has a large density and elastic modulus, sufficient collision space and high collision frequency, and the dampers are installed far away from the crane center of gravity. The optimum parameters of the damper obtained from experiments were 12 mm lead beads, a filling rate of 60%, installed in the distal ends within the strength range of the forearm of the crane. It is thus concluded that particle damping technology has provided an effective way of wind and vibration reduction for container cranes.
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来源期刊
Actuators
Actuators Mathematics-Control and Optimization
CiteScore
3.90
自引率
15.40%
发文量
315
审稿时长
11 weeks
期刊介绍: Actuators (ISSN 2076-0825; CODEN: ACTUC3) is an international open access journal on the science and technology of actuators and control systems published quarterly online by MDPI.
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