Subharmonic surface vibrocompactor

By the use of nonlinear dynamic effects, a new generation of technological vibration machines (vibrocompactors, vibroshaping machines, vibrowashers, etc.) is developed. These machines operate in nonlinear resonant regimes (main, subharmonic) and use nontraditional methods of vibration excitation. A typical example of such vibration machine is the Subharmonic surface vibrocompactor (see Figure).

The Subharmonic vibrocompactor is designed for compacting concrete mixes and soils in the construction of floors, roads, tunnels, as well as for the manufacture of reinforced concrete structures.

The use of subharmonic resonant effects made it possible to transform the basic oscillation law from the symmetric monoharmonic one (frequency 46 Hz) to the asymmetric polyharmonic (frequencies 23, 46 and 69 Hz). Due to this, technological efficiency of vibration compaction is increased sufficiently. The use of a vibrocompactor provides:

•         increasing the strength of concrete products by 20-25%

•         high quality of product’s external surface

•         saving of cement (up to 10%)

•         reduction of energy consumption by 50%.

These types of vibromachines are adopted in more than 10 engineering companies of Latvia, Lithuania and Russia.

The design of the Subharmonic vibrocompactor is protected by LR Patent No 13546 (2007).

Authors of the vibrocompactor design are V. Beresnevich and S. Cifanskis.