A Calibration Technique for Bi-axial Shake Tables with Stepper Motor

IF 0.8 4区工程技术 Q4 ENGINEERING, CIVIL

Teknik Dergi Pub Date : 2020-09-28 DOI:10.18400/tekderg.634582

Erdem Damcı, Ç. Şekerci, Y. Taskin, Koray Gürkan

引用次数: 0

Abstract

Shaking tables are frequently used to determine the dynamic behavior of structures in the laboratory environment. In order to obtain realistic results in experimental studies, table response and performance should be consistent with the desired motion. In this multidisciplinary study, an application of a new method for determining and calibrating the mechanical response of a developed bi-axial displacement controlled shake table according to the desired motion data is presented. The bi-axial shake table's electro-mechanical components consist of stepper motors, ball screw sets, linear ball bearings, and linear potentiometers positioned on both axes for displacement measurements. For the control and data acquisition (DAQ) unit of the shake table, an open-source electronic prototyping platform Arduino was used. From several experimental results, it was seen that, with the presented calibration method, harmonic and earthquake simulations could be achieved with a relative root mean square error (relative RMS error) of less than 5% for desired displacement-time histories.

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带步进电机的双轴振动台标定技术

振动台经常用于确定实验室环境中结构的动态行为。为了在实验研究中获得真实的结果，工作台的响应和性能应该与所需的运动一致。在这项多学科研究中，提出了一种新方法的应用，根据所需的运动数据来确定和校准所开发的双轴位移控制振动台的机械响应。双轴振动台的机电部件包括步进电机、滚珠丝杠组、线性滚珠轴承和位于两个轴上的线性电位计，用于位移测量。对于振动台的控制和数据采集（DAQ）单元，使用了开源电子原型平台Arduino。从几个实验结果中可以看出，使用所提出的校准方法，可以在所需位移时程的相对均方根误差（相对RMS误差）小于5%的情况下实现谐波和地震模拟。

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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来源期刊

Teknik Dergi 工程技术-工程：土木

自引率

30.80%

发文量

审稿时长

>12 weeks

期刊介绍： The scope of Teknik Dergi is naturally confined with the subjects falling in the area of civil engineering. However, the area of civil engineering has recently been significantly enlarged, even the definition of civil engineering has somewhat changed. Half a century ago, engineering was simply defined as “the art of using and converting the natural resources for the benefit of the mankind”. Today, the same objective is expected to be realised (i) by complying with the desire and expectations of the people concerned and (ii) without wasting the resources and within the sustainability principles. This change has required an interaction between engineering and social and administrative sciences. Some subjects at the borderline between civil engineering and social and administrative sciences have consequently been included in the area of civil engineering. Teknik Dergi defines its scope in line with this understanding. However, it requires the papers falling in the borderline to have a significant component of civil engineering.