A MATH MODEL OF ADJUSTABLE UNBALANCED VIBRO EXCITER BY PLANE-PARALLEL MOTION

Improving the energy efficiency of vibrating units is possible through the usage of adjustable vibratory drives. Adjustable unbalanced vibroexciter, which is cheaper and have more efficient dimensional and weight-related characteristics than the electromagnetic vibratory drive has, was not paid an appropriate attention due to the complexity of the kinematic connections. At the same time mutual position of rotating unbalances, which is the basis in regulation of the disturbing force, can be controlled by means of automated electric drives. In most cases rotation axes of the unbalances does not match the movable platform's center of mass. Further speculations on the adjustable unbalanced vibroexiter as like it is a single mass point are impossible because of the resulting torque. That's why the investigation of interaction between rotating unbalances upon plain-parallel movement of the platform is a problem of current interest. The suggested mathematical model of adjustable vibroexiter considers the resulting torque of unbalance whose axes of rotation does not match the platform's centre of mass. This model can be used in further development of adjustable unbalanced vibroexciter control system