基于横向振动建模的钢丝绳输送带张力研究

IF 2.7 3区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Measurement Science and Technology Pub Date : 2023-12-28 DOI:10.1088/1361-6501/ad180d

Xiaoxia Sun, Hui Xiao, Wenjun Meng

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引用次数: 0

摘要

钢丝绳输送带是一种重要的承载介质，对其进行精确的非接触式张力测量对于长距离带式输送机至关重要。有必要建立输送带横向振动与张力之间的关系，以便通过间接测量横向振动来分析输送带张力的变化。本文分析了现有的输送带横向振动模型，发现这些模型很难直接准确地计算出输送带的张力。因此，需要对其进行修改。首先，本文建立了带式输送机的动态模型，并使用 RecurDyn 软件进行了仿真分析。作者由此获得了输送带的张力和横向振动位移。采用快速傅立叶变换确定振动频率，用于评估输送带在不同运行条件下的振动特性。然后，本文对不同托辊间距的带式输送机的频率和张力进行了仿真分析，并在 MATLAB 软件中进行了非线性最小二乘法计算，以修改横向振动模型的系数。这一过程涉及非线性拟合，从而改进了横向振动模型。最后，将改进后的横向振动模型与原始模型进行比较。修改后的横向振动模型可以根据传送带的振动频率更准确地计算出传送带的张力。不同类型的传送带验证了改进模型的有效性。

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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Research on the tension of steel cord conveyor belts based on transverse vibration modelling

The accurate non-contact tension measurement of steel cord conveyor belt, an important load bearing medium, is critical for long distance belt conveyors. It is necessary to establish the relationship between the conveyor belt transverse vibration and the tension, in order to analyse the conveyor belt tension changes through indirect measurement of transverse vibration. The paper analyses the existing models of transverse vibration in conveyor belts, and finds that these models can hardly directly and accurately calculate the tension of the conveyor belt. Therefore, modifications are needed. Firstly, the paper establishes a dynamic model of the belt conveyor and conducts simulation analysis using RecurDyn software. This allows the authors to obtain the belt tension and transverse vibration displacement of the conveyor belt. Fast Fourier transform is employed to determine the vibration frequency, which is used to evaluate the vibration characteristics of conveyor belts under different operating conditions. Then, the paper conducts simulation analysis on the frequency and tension of the belt conveyor with different idler spacing, and performs nonlinear least squares calculation in MATLAB software to modify the coefficients of the transverse vibration model. This process involves nonlinear fitting, resulting in an improved transverse vibration model. Finally, the modified transverse vibration model is compared with the original model. The modified transverse vibration model can more accurately calculate the tension of the conveyor belt based on its vibration frequency. The validity of the modified model is verified by different types of conveyor belts.

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来源期刊

Measurement Science and Technology 工程技术-工程：综合

CiteScore

4.30

自引率

16.70%

发文量

656

审稿时长

4.9 months

期刊介绍： Measurement Science and Technology publishes articles on new measurement techniques and associated instrumentation. Papers that describe experiments must represent an advance in measurement science or measurement technique rather than the application of established experimental technique. Bearing in mind the multidisciplinary nature of the journal, authors must provide an introduction to their work that makes clear the novelty, significance, broader relevance of their work in a measurement context and relevance to the readership of Measurement Science and Technology. All submitted articles should contain consideration of the uncertainty, precision and/or accuracy of the measurements presented. Subject coverage includes the theory, practice and application of measurement in physics, chemistry, engineering and the environmental and life sciences from inception to commercial exploitation. Publications in the journal should emphasize the novelty of reported methods, characterize them and demonstrate their performance using examples or applications.