Study and animation of nonlinear elastic damper of oscillations

A mathematical model and animation of the dynamic system of the passive spring damper of oscillations was built. The effect of the spring dynamic absorber was calculated using the proposed method with two-sided estimation of the local error. These calculation formulas make it possible to obtain an approximation to the exact solution from above and below, as well as to calculate the value of the main term of the local error

The shaping of a fused surface to the influence of centrifugal rotational motion

Different methods of surfacing are using to strengthen machine parts. The surfacing will perform with using simultaneous centrifugal rotation compared to the traditional surfacing scheme. The disk is located in a fixed position during the entire surfacing process according to the traditional scheme. The rotational movement is carrying out with a certain angular velocity at the time of fusion of the metal laye

Thermal connection of cylindrical shells

The main ratios for determining the distribution of displacements, as well as the temperature field, bending moments and forces on different sections of the elastic cylindrical shell during the connection process, were obtained. The law of distribution of the intensity of heat sources has been determined, which provides for a given time a temperature field that differs as little as possible from the given one. The stress-strain state of the heating stage was studied for different sets of boundary conditions