Testing the Loading of Bearing Rings with Surface Waves Using Acoustoelasticity Effect

Bekher, S. A.; Степанова, Л. Н.; Ryzhova, A. O.; Bobrov, A. L.

doi:10.1134/s1061830921040033

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…With local compression of a ring mounted on an interference axis, the impact force will not only cause deformation of the ring surface, but will be spent on overcoming the friction force [6]. Surfaces near the edge of the sample will experience greater deformation, and less deformation near the plane of symmetry of the ring.…”

Section: Resultsmentioning

confidence: 99%

Study of press joints using strain gauges at low loads

Popkov,

Shlyakhtenkov,

Vyplaven

2024

E3S Web Conf.

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The destruction of the bearing ring of the axle box unit inevitably leads to the uncoupling of the car, which causes temporary and material losses. The problem of determining the bearing ring tension without removal is relevant; its solution will improve efficiency and reduce the inspection time. Experimental studies were carried out to determine the forces inside the contact pair, as well as their relationship with the amount of interference. It has been established that with small impacts on the ring, surface deformations in the area of impact are uneven and form a gradient in which large deformations are observed at the edge of the ring, smaller ones in the middle. It has been proven that the transition boundary of the magnitude of deformations depends on the magnitude of the interference in the contact pair. A method for determining the tension by strain gauging is proposed.

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Section: Resultsmentioning

confidence: 99%

Study of press joints using strain gauges at low loads

Popkov,

Shlyakhtenkov,

Vyplaven

2024

E3S Web Conf.

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“…Проводятся исследования чувствительности ЭМА-преобразователей для возбуждения рэлеевских волн к эксплуатационным дефектам различного размера и наклона [16]. Опробуется в производственных условиях методика опреде-ления степени натяга при напрессованном сочленении двух деталей с помощью рэлеевских волн [17]. В работе [18] авторами предложен способ контроля изделий с плоской и криволинейной поверхностью рэлеевскими волнами в иммерсионном варианте, как трещин, так и дефектов с гладким профилем глубиной от долей длины волны.…”

Section: Introductionunclassified

Ultrasonic Thread Surface Inspection of Railroad Car Wheels and Locomotive Tires Using Rayleigh Waves

Platunov,

Muravev,

Muraveva

2023

Intellekt. Sist. Proizv.

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Ultrasonic surface inspection of cylindrical objects using the Rayleigh wave echo method has many advantages. Despite strict requirements for surface cleaning, the method is widely implemented in industries and transport, for example on the all-rolled wheel thread or tires of railroad rolling stock. Taking into account the ability of the Rayleigh wave transducer to receive waves with a side ('back') lobe of the ray diagram, the influence of possible contamination or excess of contact fluid on the input surface on the control results, it becomes particularly difficult to explain the position and amplitude of the signal. Using mathematical modeling and experimental studies, the ray diagrams of Rayleigh wave piezoelectric transducers with the 'back lobe' characteristic of piezoelectric transducers of this type were obtained. The efficiency of emission and (or) receiving depends on the parameters of control and apparatus; this effect is more evident if the width of the transducer piezoelement deviates (e.g., during fabrication) and the frequency varies within 20 %, allowed by GOST R 55724-2013. The acoustic path of the Rayleigh wave reflected from the flaw with a diameter of 7 mm on the wheel thread is experimentally constructed and tested on the model. It is shown that the amplitude of the echo-signal changes nonuniformly, the local maxima obtained experimentally reach 9 dB relative to the exponential relation characteristic of propagation over a boundless surface. The reason for such phenomena lies in multiple re-reflections of waves from the boundaries on the tread surface of railway wagon wheels and locomotive tires (rim chamfer, ridge to ridge transition) and their further interference.

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