Abstract
The article deals with an important issue of creating virtual test grounds. The problem of measuring vibrations and acoustic emissions of designed objects of the aircraft industry, etc is studied. Thus, for example, one of the important tests of the coaxial helicopter at the development stage is the assessment of the impact of manufacturing tolerances on fuselage vibrations. The general problems of modeling and control of the acoustic field, the measurement of the acoustic emission of objects are considered. The research results can be used to solve the problems of creating virtual test grounds and other digital systems, where the assessment of the behavior of a complex object is made on the basis of its digital twin or, in general, on a mathematical or computer model. The introduction of such systems can significantly reduce financial costs when creating a product, increase quality of designed systems and predict their behavior under certain conditions without expensive testing.
Highlights
IntroductionThe software environments for the development of Matlab and COMSOL and examples of projects carried out in them are considered
To undertake the research, the software environments for the development of Matlab and COMSOL and examples of projects carried out in them are considered
We can say that we managed to explore the capabilities of the software packages for calculating and modeling acoustic levitation systems
Summary
The software environments for the development of Matlab and COMSOL and examples of projects carried out in them are considered. The transverse radiation force (radial force) is a pressure force acting in the transverse direction relative to the primary force This force arises due to the fact that the object in the field is an obstacle, the environment flows around the particle. Where k is the number of waves, rs is the radius of the sphere, E is the total energy of sound in the medium, F is the coefficient of relative density, ps is the density of the sphere. Taking into account this force, there is no need for the reflector and the emitter to be perpendicular to the vertical axis. As long as the angle relative to the axis does not exceed certain values, the object will still levitate if the force of gravity does not exceed the sum of the main and lateral forces [4]
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