Vjuginova A., Vjuginov S.N., Novik A.A. «Simulation of Ultrasonic Tools for Cutting Honeycomb Panels Made of Aluminum and Aramid (Kevlar)» Acoustical Physics, 70, № 1, с. 189-193 (2024)

Honeycomb panels made of aluminum and composite materials aramid, or Kevlar–are widely used in aviation, space, automotive, and other fields due to their unique characteristics: high strength and rigidity, low density, and good thermal insulation properties. However, the mechanical processing of products made of honeycomb materials faces several difficulties, and one of the technologies that effectively solves the problems of cutting products made of honeycomb materials is ultrasonic cutting. In this paper, the finite element method is used to study the frequency properties necessary for designing tools for ultrasonic cutting of products made of honeycomb materials with operating frequencies around 20 kHz and various geometric parameters for cutting different variants of honeycomb constructions. The results of analyzing the wave dimensions of specialized ultrasonic triangular and disk-type instruments depending on geometry features are shown, along with the experimental results for a number of developed variants.

Vjuginova A., Vjuginov S.N., Novik A.A. «Simulation of Ultrasonic Tools for Cutting Honeycomb Panels Made of Aluminum and Aramid (Kevlar)» Acoustical Physics, 70, № 1, с. 189-193 (2024)

Honeycomb panels made of aluminum and composite materials aramid, or Kevlar–are widely used in aviation, space, automotive, and other fields due to their unique characteristics: high strength and rigidity, low density, and good thermal insulation properties. However, the mechanical processing of products made of honeycomb materials faces several difficulties, and one of the technologies that effectively solves the problems of cutting products made of honeycomb materials is ultrasonic cutting. In this paper, the finite element method is used to study the frequency properties necessary for designing tools for ultrasonic cutting of products made of honeycomb materials with operating frequencies around 20 kHz and various geometric parameters for cutting different variants of honeycomb constructions. The results of analyzing the wave dimensions of specialized ultrasonic triangular and disk-type instruments depending on geometry features are shown, along with the experimental results for a number of developed variants.

Mansfeld D., Belyaev R.V., Volkov G.P., Kuzmin A.A., Sanin A.G., Shaikin A.A. «Monitoring the Internal Temperature of Active Elements of High-Power Lasers Using Ultrasonic Probing» Acoustical Physics, 70, № 1, с. 68-75 (2024)

Monitoring the internal temperature of active elements (AE) of high-power lasers is necessary for their safe operation. The article describes a method and device for monitoring the internal temperature of the AE of lasers. The measurements utilize pulsed ultrasonic (US) probing and the temperature dependence of the sound speed in the AE material. A change in the sound speed leads to a change in the phase of the ultrasonic signal passing through the object, which is recorded by the described device. The results of monitoring the AE temperature using ultrasonic probing during operation of a laser device are presented.