ABSTRACT
Technically, it is implemented by using ultrasonic stacks incorporating, in particular, waveguide sections and a radiator. However, ultrasonic stacks operating on longitudinal vibrations hold the greatest interest for technological applications, since they are simple in manufacturing and convenient for excitation and transmission of vibrational energy to load. Radiators used for excitation of intense vibrations in corrosive and high-temperature media must be resistant to their destructive action. Any sonotrode contacting a liquid or solid medium can serve as a radiator. Of great practical interest is the problem of the displacement amplitude distribution over the emitting surfaces of various cylindrical sonotrodes. In design practice, it is expedient first determine the ultimate resonator dimensions and the type of desirable oscillations in sonotrodes. Resonant frequency and dimensions of compound ultrasonic stacks can be determined from expression for the input impedance of vibratory system. An element of vibratory systems, which is in a direct contact with a processed medium, is radiator.
