Comparison of Noise Floors of Various Torsional Vibration Sensors

Seidlitz, Steve; Kuether, Robert J.; Allen, Matthew S.

doi:10.1007/978-1-4614-2419-2_14

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…Structurally, by the sensitive element motion type, vibration sensors can be conditionally divided into two classes: 1—axial ones, ensuring linear oscillatory motion of the sensitive element [ 20 , 25 ]; 2—pendulum sensors, implementing angular displacement of the sensitive element during its torsional oscillations relative to the suspension point [ 26 , 27 ].…”

Section: General Issues In Vibration-based Diagnosticsmentioning

confidence: 99%

Hybrid Vibration Sensor for Equipment Monitoring and Diagnostics

Bryakin,

Bochkarev,

Khramshin

et al. 2024

Sensors

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Vibration diagnostics based on vibroacoustic signal data belong to the most common ways to monitor the technical condition of equipment and technical structures. The paper considers the general issues of vibration-based diagnostics and shows that in general, it is required to monitor both axial and torsional oscillations, as well as the inclination angle, occurring during the operation of various technical objects. To comprehensively monitor these parameters, a hybrid vibration sensor is proposed, simultaneously implementing three operating modes: recording linear displacements of the vibrating object; recording the rotation angle of the object at its torsional oscillations; recording the object angular deviation from the vertical component of the natural local geomagnetic field, i.e., the inclinometer mode. The proposed hybrid sensor design is described, and a theoretical analysis of the sensor’s operation in each of the aforementioned operating modes is performed. The authors show that in the inclinometer mode the sensor actually operates as a fluxgate meter. Generalizing the results of the sensor’s operation simultaneously in all three operating modes, an equation for the total output data signal has been obtained, which allows for obtaining the required information on the current values of linear displacements and rotation and inclination angles by selectively filtering it with respective three filters tuned to specific frequencies. The experimental studies of the proposed hybrid vibration sensor confirmed its ability to record various vibrational disturbances and changes in the inclination angle of the monitored object.

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Section: General Issues In Vibration-based Diagnosticsmentioning

confidence: 99%

Hybrid Vibration Sensor for Equipment Monitoring and Diagnostics

Bryakin,

Bochkarev,

Khramshin

et al. 2024

Sensors

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“…Generally, it is necessary to use wireless transceiver or slip ring to output electrical signals on the rotating shaft. The non-contact torsional vibration measurement technology is a torsional vibration measurement method that the sensor is not directly connected with the measured shafting [30,31]. The instantaneous change speed is measured directly through the speed sensor, and the instantaneous change speed signal is converted to the electrical signal, and the torsional vibration signal is extracted by electronic technology or data processing.…”

Section: Introductionmentioning

confidence: 99%

Study on torsional vibration of RT60 crane transmission system

Xiao

Zhou

2020

Mechanics & Industry

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In the process of engineering use, the elastic coupling of the RT60 crane transmission system has a large noise and even breaks down sometimes. In this paper, RT60 crane transmission system is the research object. A finite element model and a discrete model for torsional vibration of transmission system are established by finite element method and lumped parameter method. Through the study of the finite element model and the vibration test of transmission system, the correctness of the system model, equivalent parameter, calculation method and MATLAB program are verified. Because of the high efficiency of the torsional vibration discrete system, the discrete model is used in this paper to replace the finite element model. The free vibration and response vibration of the crane transmission system are calculated and analyzed, and the reasons for the existence of the system noise are explained in the starting stage. Through the study of the vibration theory and the matching method of the elastic coupling, the CX-45-VFA-60-11 elastic coupling is proposed to replace the CX-45-VFA-11 elastic coupling. In this paper, the data signal is collected by the hall gear sensor, and the data are analyzed by the self-developed vibration tester. The vibration amplitude of the torsional vibration of the crane transmission system is greatly reduced by testing the transmission system of the replacement of the elastic coupling. This paper provides a theoretical guiding significance for the low noise design of the crane transmission system.

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