B7.3 - Distributed Fibre Optic Acoustic and Vibration Sensors for Industrial Monitoring Applications

Hicke, Konstantin; Hussels, Maria-Teresa; Eisermann, René; Chruseicki, S.; Krebber, Katerina

doi:10.5162/sensor2017/b7.3

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…When the axle of the steel conveyor roller with a φ133 mm diameter is fitted into the plastic brackets (see Figure 11 Research by K. Hicke at al. [54] focuses on monitoring the acoustic condition and detection of roller faults in industrial conveyor belts.…”

Section: Discussionmentioning

confidence: 99%

“…The effective vibration values v (*)RMS(fi) [mm•s −1 ] of φ133 mm conveyor rollers at different revolutions when red line is plastic trestle, roller casing-steel, blue line is steel trestle, roller casing-steel, fialová line is plastic trestle, roller casing-plastic, and green line is steel trestle, roller casing-plastic. Measuring point as in Figure 11 (a) B, (b) D, (c) A, (d) C.Graphs (a) to (d) show that the effective vibration values v (*)RMS(fi) [mm•s −1 ] of the rotating conveyor rollers reach the highest values at higher frequencies set on the frequency converter (the speed of the driving electric motor was controlled by a frequency converter) corresponding to the revolutions of the conveyor rollers.Research by K. Hicke at al [54]. focuses on monitoring the acoustic condition and detection of roller faults in industrial conveyor belts.Graphs (a) to (d) also show that the higher effective vibration values v (*)RMS(fi) [mm•s −1 ] were measured at points A to D, in the case when the axles of the conveyor rollers were placed in a steel trestle (green and blue curves) than when the axles of the conveyor rollers were positioned in plastic brackets (purple and red colour curves).InFigure 20, we can see the effective vibration values v (*)RMS(fi) [mm•s −1 ] for the rotating conveyor rollers measured at the points A to D, of which the plastic or steel casing of a 108 mm diameter rotates at a circumferential speed of v r = 4.66 (3.84, 2.5, or 1.25) m•s −1 , provided that the flattened ends of the conveyor roller axles are fitted into the steel or plastic trestle of the fixed conveyor idler.…”

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confidence: 99%

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The Reduction of Rotating Conveyor Roller Vibrations via the Use of Plastic Brackets

Hrabovský,

Nováková,

Pravda

et al. 2023

Machines

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This paper presents the basic structural parts, a 3D model, and the overall design of a laboratory machine, which was created to detect vibrations generated by the casing of a conveyor roller rotating at different speeds. The intention of the authors was to verify whether plastic brackets inserted into the structurally modified trestles of a fixed conveyor idler can reduce the vibration values transmitted from the rotating conveyor roller to the trestle of a fixed idler. Experimental vibration measurements taken on the non-rotating parts of conveyor rollers, performed on a laboratory machine according to ISO 10816, are suitable for characterizing their operating conditions with regard to trouble-free operation. The aim of this paper is to detect the vibrations of a rotating conveyor roller on a laboratory machine in the defined places of a fixed conveyor idler and also on the steel frame of a laboratory machine that represents the supporting track of a belt conveyor. Vibrations detected by piezoelectric acceleration sensors were recorded by a measuring apparatus and displayed in the environment of Dewesoft X software (version 10). The measurements show that the vibration values grow with the increasing speed of the conveyor roller rotation. Experimental measurements have proven the correctness of the assumption that the vibrations transmitted to the trestle of a fixed conveyor idler are lower by up to 40% when using plastic brackets into which the axle of the conveyor roller is attached, compared to the solution where the axle of the conveyor roller is inserted into the notches of a steel trestle.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

The Reduction of Rotating Conveyor Roller Vibrations via the Use of Plastic Brackets

Hrabovský,

Nováková,

Pravda

et al. 2023

Machines

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show abstract

“…In the article [8], K. Hicke et al describe the acoustic monitoring of the rollers' condition in industrial conveyor belt installations.…”

Section: Introductionmentioning

confidence: 99%

Measuring Device Detecting Impact Forces on Impact Rollers

Hrabovský,

Kurač,

Pravda

et al. 2024

Processes

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This paper presents laboratory devices on which measurements were carried out to prove the validity of the assumption about the reduction in vibrations transmitted to the conveyor belt structure generated by the impact forces of falling material grains in the places of transfer or on the hoppers of conveyor belts. In order to limit damage to the conveyor belts caused by the impact of the sharp edges of material grains, conveyor belts are supported by impact rollers or impact rubber rods. A special modification of the fixed conveyor idler is presented, which consists of inserting plastic brackets into the structurally modified roller axle holders of the fixed conveyor idler. Measurements showed that the specially modified fixed conveyor idler resulted in a higher damping of up to 15% of the impact forces of the falling weight on the rubberized hoop of the impact roller shell compared to the conventional fixed conveyor idler design. Measurements carried out show that the effective vibration velocity values detected at the points where the impact roller axis fits into the fixed roller table holder are higher than when using plastic brackets, up to 6% for a 108-mm-diameter roller, compared to steel impact roller brackets.

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Acoustic Technology for Maritime Surveillance: Insights from Experimental Exercises

Dias,

Santos,

Lobo

2024

OCEANS 2024 - Singapore

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B7.3 - Distributed Fibre Optic Acoustic and Vibration Sensors for Industrial Monitoring Applications

Cited by 3 publications

References 5 publications

The Reduction of Rotating Conveyor Roller Vibrations via the Use of Plastic Brackets

The Reduction of Rotating Conveyor Roller Vibrations via the Use of Plastic Brackets

Measuring Device Detecting Impact Forces on Impact Rollers

Acoustic Technology for Maritime Surveillance: Insights from Experimental Exercises

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