vibration

The influence of local transformations on the temperature field of the tourbogenerator’s rotor

The method of determining the integral characteristics of the temperature field of a turbine generator rotor in the case of local overheating is proposed in relation to the study of its deflections and the level of vibration; Influence of thermophysical and geometrical parameters of rotor ТГВ-500-4 on its temperature field is investigated.

Vibration of orthotropic doubly curved panel with a set of inclusions of arbitrary configuration with different types of connections with the panel

In the framework of the refined theory of shells, which takes into account transverse shear deformation and all inertial components, the solution of the problem on  the steady-state vibration of the orthotropic doubly curved panel with the arbitrary number of absolutely rigid inclusions  of the arbitrary geometrical form and location is constructed. The inclusions have different types of connections with the panel and perform the translational motion in the normal direction to the middle surface of the panel. The external boundary of the panel is of the arbitrary geometrical configuration.

Optymizatsiia tekhnolohii naplavlennia znosostiikykh shariv na ploski elementy konstruktsii [Optimization of technology of surfacing wear-resistant layers on flat structural elements]

The influence of the profile, surfacing on the formation of the weld by automatic submerged arc wire with powder brand CW80Cr20B3Ti. As a result, design of experiments established the relationship between the geometric dimensions of the seam and the depth of penetration of current value and welding speed. The resulting optimal mode of deposition used in forming the roller for extra vibration substrate.

Complex approach for improvement stability of electronic devices to mechanical destabilizing factors

The paper considers complex ways to improve the stability of electronic devices (ED) to shocks and vibrations, which are the main destabilizing factors among mechanical effects. In mechanical shock, the inertial overload may reach up to 5..15 units. In many situations, the upper limit of the energy spectrum of acceleration reaches 50..150 m/s2. Such large inertial overload very quickly (in tens or hundreds of beats) causes the destruction of regular ED.

Process optimization of vibroresonance sewage disinfection

Mathematical models which adequately combine their technological parameters with indicators of treatment quality have been designed for the cavitation cleaning processes of sewage from organic admixtures. Water of brewing, milk processing industry and public water use it is considered as sewage.

Optimization of process work adaptive vibration machine by distribution vibration in vibrokyp'yachomu layer

The method of control dynamic parameters controlled vibrogear for stabilizing the depth of penetration of mechanical low-frequency oscillations in the layers of vibration boil loose material working body with its own operating frequency resonant vibration of adaptive technology machines.

The hydro-automatic damping system against dynamic vibrations

A review and analysis of the developed hydraulic system for quenching dynamic oscillations has been carried out. A mathematical model for determining the operation delay time of the hydraulic system of the dynamic quenching of oscillations has been created. A period’s calculation of cleavage of the soil and the operation delay time of quencher dynamic oscillations from which it is possible in theory to establish the ability of the hydraulic system of dynamic quenching of oscillations to operate in due time is performed.