Non-contacting measurement of torque and axial translation in high-speed rotating shafts

Kakaley, Daniel E.; Altieri, Russell; Buckner, Gregory D.

doi:10.1016/j.ymssp.2019.106520

Cited by 11 publications

(5 citation statements)

References 5 publications

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“…Among them are measurement methods that are based on the use of photo sensors that receive a pulse characteristic of rotation using special slots in discs placed on the shaft, which are fixed by logical semiconductor photocells. An example can be the implementation given in works [7,8], in which the pulse method of moment measurement is presented. Its practical implementation is based on measuring the time between pulses.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Devising a technique for measuring torque of electric motors using machine vision

Kvasnikov,

Kvashuk,

Prygara

et al. 2024

EEJET

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The object of research is the technique for measuring torques of electric motors. The main problem to be solved is the need to expand the range of informative parameters used in transmission torque converters of electric motors. This need arises from the design complications of placing the measuring devices directly on the motor shaft. As part of the study, a system was designed for determining the torques of electric motors, which combines the procedure for assessing the load on the shaft and software tools for visually determining the quantitative characteristics of such a load using machine vision. In order to acquire visual characteristics of the twisting of the shaft, a special coupling with an insert containing a liquid was designed. This coupling is able to change its shape in proportion to the load on electric motor shaft. The proposed visual control system, based on video information processing techniques, makes it possible to analyze changes in the shape of the coupling caused by the action of the torque. Features of the application of the proposed measurement technique are that there is no need to place electronic components of the measuring transducer directly on the shaft. Due to the specified features, the proposed procedure provides a solution to the problems of torque measurement in aggressive environments, which is of crucial importance for the efficiency of some specific production processes. Analysis of the visual characteristics of torque showed that the proposed approach could be applied in measuring transducers. At the same time, the results of testing the procedure confirmed that it requires the use of high-precision video recording equipment. This paves the way for the design of new, more modern, and reliable measurement systems that could be used in a wide range of industrial solutions

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…With small deviations of the parameters from their rated values, when solving practical problems, it is enough to consider the first two terms of the series (8). However, in certain scenarios there is a need to consider higher-order sensitivity functions, such as the second:…”

Section: Uy Cementioning

confidence: 99%

Devising a technique for measuring torque of electric motors using machine vision

Kvasnikov,

Kvashuk,

Prygara

et al. 2024

EEJET

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“…Therefore, the 2X amplitude of the OSVM sensor data at the critical frequency can be used to determine the intensity of the vibration for rotor imbalance analysis. 22…”

Section: Verification Of Imbalance Analysismentioning

confidence: 99%

“…Okabe and Tanaka [21] described an ultrasonic sensor-based method for shaft vibration detection by measuring the propagation time of the ultrasonic wave from the sensor to the shaft surface. Kakaley et al [22] introduced a non-contact variable reluctance (VR) sensor system for the simultaneous estimation of the torque, speed, and axial translation of high-speed rotating shafts. The non-contact shaft vibration sensing techniques may obtain signals of high sensitivity and good quality.…”

Section: Introductionmentioning

confidence: 99%

Development of an On-Shaft Vibration Sensing Module for Machine Wearable Rotor Imbalance Monitoring

Meng,

Liu,

Chen

et al. 2024

Electronics

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Rotor imbalance is considered to be one of the main mechanical faults of rotating machinery; which may result in bearing damage and even catastrophic system failure. Recent progress in the Internet of Things (IoT) has promoted the application of novel sensing and computing techniques in the industry, and it is promising to employ novel IoT techniques for imbalance detection to avoid potential failures. Existing sensing techniques suffer from the impact of bearing structure dynamics, loss of accuracy during their lifetime, and security risks introduced by the sensor cabling and supports, which may, in turn, interfere with the machine operations due to inappropriate design and installation. This investigation provides an on-shaft machine wearable vibration sensing technique for effectively monitoring the running state of rotors while minimizing the interference with their operations. In this work, key investigations include the following: (1) theoretical modeling and an analysis of rotor imbalance, and its measurement with an on-shaft micro-electromechanical system (MEMS) accelerometer; (2) the development of a wirelessly powered, cordless on-shaft vibration measurement (OSVM) sensor for unobtrusive sensing of the vibration of rotating shafts; (3) the in-sensor computing design for optimizing the distribution of computing resources and decreasing data transmission. The tests and evaluation of the proposed techniques were conducted with a rotor test rig to demonstrate their feasibility. The presented investigation is a typical example of applying new sensing and computing paradigms to improve the flexibility and convenience of applications, which is a good reference for related investigations and practices.

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“…Com o objetivo de superar as limitações inerentes a utilização de sensores com contato, tem-se buscado opções de sensores sem contato para medições de deslocamento linear e angular. No trabalho realizado por KAKALEY et al [15] foram utilizados sensores de relutância variável (VR) sem contato em um sistema para medição simultânea do torque, velocidade e deslocamento axial em eixos de alta velocidade. Este sistema consiste em seis sensores VR montados em uma carcaça que envolve duas rodas dentadas e o eixo rotativo.…”

Section: Figuraunclassified

Torcímetro digital para teste de torção em materiais e avaliação dos parâmetros elasto-plásticos de cisalhamento

2021

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RESUMO Neste trabalho estão mostrados o projeto, os principais componentes e os resultados obtidos com o protótipo de um torcímetro digital que foi construído para medir a variação do ângulo de torção em ensaios mecânicos de materiais. Este dispositivo foi construído utilizando um encoder magnético, modelo AS5048A, com 14 bits de resolução e para o processamento dos dados foi utilizada uma placa microcontroladora Arduino Mega 2560. Além do baixo custo dos componentes eletrônicos e mecânicos, outra vantagem do sistema de medição desenvolvido é a grande quantidade de aplicativos gratuitos disponíveis para o processamento e aquisição dos dados com a placa microcontroladora utilizada. Foram realizados testes para verificar a exatidão nas leituras da variação angular e ensaios de torção com corpos de prova tubulares de alumínio (liga AA6351T6) para avaliar o desempenho do sistema de medição em ensaios monotônicos. A relação de Ramberg-Osgood foi utilizada para descrever o comportamento do material e as tensões de cisalhamento foram avaliadas empregando relações não lineares propostas por diferentes autores. Os dados obtidos indicam que o torcímetro digital apresentou resultados satisfatórios para a obtenção do ângulo de torção e as principais vantagens deste dispositivo incluem a medição do ângulo de torção sem contato, linearidade, boa acurácia, faixa de medição ilimitada, tamanho reduzido e baixo custo para confecção.

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Non-contacting measurement of torque and axial translation in high-speed rotating shafts

Cited by 11 publications

References 5 publications

Devising a technique for measuring torque of electric motors using machine vision

Devising a technique for measuring torque of electric motors using machine vision

Development of an On-Shaft Vibration Sensing Module for Machine Wearable Rotor Imbalance Monitoring

Torcímetro digital para teste de torção em materiais e avaliação dos parâmetros elasto-plásticos de cisalhamento

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