Pochka K. Dynamic optimization of cars of roller formation of products from construction mixes

Work contains the new solution of a current scientific and applied problem of the low-power-intensive principle of creation and research of dynamics of the movement of cars of roller formation of products from construction mixes and its influence on working process. Use in roller forming installation of energetically balanced and balanced drives allowing to carry out redistribution of the energy of forming carts during the continuous modes of the movement with start-up and braking due to use of the general driving mechanism is offered. Mathematical models of dynamics of the movement of roller forming installation with the offered drives based on which the dynamic analysis of installation is carried out are developed. For roller forming installations the dynamic analysis taking into account elastic and dissipative properties of driving mechanisms is carried out. The optimum value of rigidity of the driving mechanism and the recommended size of coefficient of dissipation which is regulated by selection of parameters of connecting couplings are defined. Dynamic equilibration of driving mechanisms of cars of roller formation is carried out. Use in roller forming installation of the drive in the form of the cam mechanism is offered. The analysis of the modes of the movement of cam mechanisms is carried out. The modes of the movement and the complex optimum mode of the movement of the forming cart are calculated optimum dynamic, breakthrough, behind accelerations of the third and fourth orders. Calculations of the combined modes of the movement of the forming cart are carried out. Optimization of the process of reversal of the forming cart on optimum dynamic, breakthrough, on the acceleration of the third and fourth orders, is carried out by the modes of the movement. For the specified modes of reversal optimization of boundary conditions is performed. Based on the results of theoretical and pilot studies received in dissertation work the recommendations about improvement of the drive and design of cars of roller formation protected by the patent of Ukraine for an invention that 48 mu patents of Ukraine for useful models are developed.