Rail Base Point Inspection Using the Mirror through Transmission Testing Technique on Multiple Reflections

Volkova, L. V.; Platunov, A. V.

doi:10.22213/2413-1172-2019-4-38-45

Cited by 4 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Modern methods of non-destructive testing make it possible to simultaneously detect defects, carry out thickness measurement and evaluate the structure of the material (structural health monitoring) [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. One of these methods is acoustic guided wave testing, based on the use of guided waves, in particular, horizontally polarized shear wave, symmetric and antisymmetric Lamb wave modes.…”

Section: Introductionmentioning

confidence: 99%

The propagation of antisymmetric Lamb wave in the hollow cylinder

Myshkin¹,

Муравьева²,

Voronchikhin³

et al. 2020

Instrumentation Engineering, Electronics and Telecommunications

View full text Add to dashboard Cite

The article presents research on the propagation of an antisymmetric Lamb wave mode in a hollow steel cylinder with an outer diameter of 1020 mm and a wall thickness of 16 mm at frequencies of 50 and 120 kHz. Dispersion curves for a pipe and a plate are given, examples of which show their similarity in the frequency range from 5 kHz and the presence of higher-order modes. Experimental studies were carried out using piezoelectric transducers with dry point contact on a spiral welded pipe. The research results showed the combined effect of the geometric anisotropy and anisotropy of the pipe material properties on the propagation velocity of the antisymmetric Lamb wave mode. The maximum difference in velocity depending on the angle of deviation of the wave propagation trajectory (deviation angle) was 35 and 55 m/s at a frequency of 50 and 120 kHz, respectively. The effect of the pipe wall thickness on the character of the dependence of the velocity on the deviation angle in the presence of dispersion was established, which amounted to 20 m/s per 1 mm of wall thickness for a given pipe geometry. A qualitative description of the formation of the shape of the dependence of the wave velocity on the deviation angle, which has a minimum at 30 degrees and a maximum at 90 degrees, is presented.

show abstract

Section: Introductionmentioning

confidence: 99%

The propagation of antisymmetric Lamb wave in the hollow cylinder

Myshkin¹,

Муравьева²,

Voronchikhin³

et al. 2020

Instrumentation Engineering, Electronics and Telecommunications

View full text Add to dashboard Cite

show abstract

Mirror-Shadow Method of Ultrasonic Testing of the Railroad Wheelset Axles Using the Electromagnetic-Acoustic Method of Wave Generation and Reception

Platunov,

Murav’ev,

Murav’eva

et al. 2023

Russ J Nondestruct Test

View full text Add to dashboard Cite

Structuroscopy of Coils after High-Temperature Mechanical Treatment on the Basis of Measurements of Rayleigh Waves Velocity

Муравьев

Gushchina

2022

Prib. metody izmer.

View full text Add to dashboard Cite

For the manufacture of spring springs of rolling stock (wagons, locomotives, cars), bars made of spring steels are used. With high-temperature machining, when winding springs and quenching them, there is a difference in the cooling rates of the inner and outer sides of the spring coils, which leads to a difference in the structural state and affects the durability of the springs. The aim of the work is to study the effect of structural changes in the outer and inner surfaces of spring steel coils after winding and high–temperature machining operations on the measured characteristics of Rayleigh acoustic waves.The propagation velocities of Rayleigh waves in spring-spring steel 60C2A after winding and hightemperature machining operations are investigated. The shadow method and the autocirculation method with piezoelectric converters CTS-19 with a frequency of 5 MHz with a special block design were used for research. The converters provide input and reception of the Rayleigh wave along the inner and outer forming surface of the spring. It is shown that the method of comparing the results of measuring the velocity of Rayleigh waves on a fi base by the coil generator on the inner and outer surfaces of the spring is sensitive to disturbances in the structure of the material and the appearance of defects. An unambiguous relationship of the structural states on the outer and inner sides of the spring with the velocity of the Rayleigh wave is found.As a result of the measurements, a conclusion was made about the significant sensitivity of Rayleigh waves to the structural state of the steel under study. An increase in the wave velocity was detected on the inner surface of the coil in the contact zone with the mandrel relative to the outer side of the coil, signaling incomplete hardening of steel in this zone during high-temperature machining. The relative speed difference in different spring samples is approximately up to 1 % (≈ 30 m/s), which is a significant value for assessing the quality of high-temperature machining.

show abstract

Rail Base Point Inspection Using the Mirror through Transmission Testing Technique on Multiple Reflections

Cited by 4 publications

References 8 publications

The propagation of antisymmetric Lamb wave in the hollow cylinder

The propagation of antisymmetric Lamb wave in the hollow cylinder

Mirror-Shadow Method of Ultrasonic Testing of the Railroad Wheelset Axles Using the Electromagnetic-Acoustic Method of Wave Generation and Reception

Structuroscopy of Coils after High-Temperature Mechanical Treatment on the Basis of Measurements of Rayleigh Waves Velocity

Contact Info

Product

Resources

About