Designing a unified wireless system for vibration control

Heo, Gwanghee; Kim, C

doi:10.1016/j.soildyn.2012.01.012

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…Their low-cost and low-power system was demonstrated to be robust and accurate. Heo et al [22] proposed a unified wireless system to control the vibration of bridges. The system consists of four parts: the wireless measurement (WM) system, the wireless analog output (WAO) system, the main control (MC) system, and the wireless bidirectional communication system (WBC).…”

Section: Of 18mentioning

confidence: 99%

Development of a Low-Cost Vibration Measurement System for Industrial Applications

2019

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Vibration-Based Condition Monitoring (VBCM) provides essential data to perform Condition-Based Maintenance for efficient, optimal, reliable, and safe industrial machinery operation. However, equipment required to perform VBCM is often relatively expensive. In this paper, a low-cost vibration measurement system based on a microcontroller platform is presented. The FRDM K64F development board was selected as the most suitable for fulfilling the system requirements. The industrial environment is highly contaminated by noise (electromagnetic, combustion, airborne, sound borne, and mechanical noise). Developing a proper antialiasing filter to reduce industrial noise is a real challenge. In order to validate the developed system, evaluations of frequency response and phase noise were carried out. Additionally, vibration measurements were recorded in the industry under different running conditions and machine configurations. Data were collected simultaneously using a standard reference system and the low-cost vibration measurement system. Results were processed using Fast Fourier Transform and Welch’s method. Finally, a low-cost vibration measurement system was successfully created. The validation process demonstrates the robustness, reliability, and accuracy of this research approach. Results confirm a correlation between signal frequency spectrum obtained using both measurement systems. We also introduce new guidelines for practical data storage, communications, and validation process for vibration measurements.

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Section: Of 18mentioning

confidence: 99%

Development of a Low-Cost Vibration Measurement System for Industrial Applications

2019

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“…A Unified Wireless Control (UWC) system that was developed based on National Instruments' cRIO-9014 and cRIO-9104 devices was utilized to control the trials (Heo and Kim, 2012). First, the external load input system was configured by emplacing an electronic vibration testing device SET (EDS20-120) and a Power Amplifier-1200, as shown in Fig.…”

Section: Experimental Setup and Configurationmentioning

confidence: 99%

A damage assessment technique based on a revised Statistical Pattern-recognition Technique (SPRT)

Heo

Kim

Lee

et al. 2017

KSCE Journal of Civil Engineering

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Structural conditions assessment utilizes data analysis methods based on signals measured from subject structures. Among the various signal-based analysis methods available, a Statistical Pattern-recognition Technique (SPRT) based on Mahalanobis Distance (MD) theory is considered useful in assessing structural conditions; however, its evaluation of volatile signal data incurred by external loads such as seismic loads is usually limited. In this study, an experiment was conducted to attempt to overcome such limitations of MD theory. Furthermore, research was conducted on condition assessment methods based on SPRTs that can accurately assess structural conditions, even with highly volatile measured data. As a first step, the limitations of the standard MD theory were experimentally confirmed. Based on these limitations, a revised MD (RMD) theory was subsequently proposed. To verify the proposed SPRT, standardized cyclic loads and non-standardized seismic loads were used to conduct experiments on structural damage assessment. Based on these results, the RMD theory proposed in this study was confirmed to be a valid method for comprehending structural damage.

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“…These have been experimental validated with large-scale structural-control experiments 91 and can account for the inherent non-linear characteristics of semi-active control devices, a feature not present in clipped-optimal controllers. 92 Most recently, a wireless control and monitoring system has been developed that unifi es structural monitoring with feedback semi-active vibration control with a graphical interface for end users 93 for maintenance and management.…”

Section: Application Softwarementioning

confidence: 99%

Design and selection of wireless structural monitoring systems for civil infrastructures

Kane

Peckens

Lynch

2014

Sensor Technologies for Civil Infrastructures

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A dichotomy exists in structural monitoring installations: those with sensors tethered to the data repository with wires, and those which use wireless communication to create a distributed network of sensors. This chapter discusses the impact of the paradigm shift from the wired monitoring systems traditionally used, to the wireless systems recently developed. This new technology is capable of achieving effective measurements on par with its predecessor, and introduces new possibilities of large-scale networks of hundreds of sensors made possible by low installation costs and scalable in-network data processing. Design and selection considerations covered in this chapter include network architecture, wireless node hardware, and distributed embedded software. Although rapidly maturing and reaching commercialization, research opportunities still exist in the fi elds of data and power management, which are discussed as the chapter culminates.

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Designing a unified wireless system for vibration control

Cited by 7 publications

References 11 publications

Development of a Low-Cost Vibration Measurement System for Industrial Applications

Development of a Low-Cost Vibration Measurement System for Industrial Applications

A damage assessment technique based on a revised Statistical Pattern-recognition Technique (SPRT)

Design and selection of wireless structural monitoring systems for civil infrastructures

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