Review of achievements and research directions in computer modeling of machines and mechanisms in KhNAHU

Abstract

The paper presents the implementation of computer-aided design technologies in the educational process, diploma design, as well as in scientific researches. It is underlined that a qualitative leap in the possibilities of modeling machines and mechanisms occurred in 2006, with the start of the Autodesk Inventor Series package using. It allowed creating a detailed model of the product – a digital prototype – simulating not only the geometry but also the basic physical properties of the parts. An important and actual problem is the analysis of the methods used for models creations, the generalization of the results obtained and the development of algorithms and modeling methods for specific machines and mechanisms. The created models of construction and road machines were described, as well as the elements of a crank, link, pendulum, and other mechanisms. With the addition of a dynamic modeling environment and calculations based on the finite element method, it became possible not only to simulate motion but to conduct virtual experiments with developed digital prototypes. First of all, it is the study of the stability of machines, the determination of tip-ping angles, the analysis of forces and support reactions in the elements of running equipment when overcoming obstacles. In conclusion, it was noted that computer modeling makes possible to solve a wide range of engineering and research problems. Geometric modeling is worked out most deeply, and the task is to create parametric families of parts. It is more difficult to model the behavior of machines, their components, assemblies and components. These problems should be solved by the method of successive approximation of virtual objects to real machines with acceptable simplifications. It is also necessary to conduct computer studies of physical phenomena as applied to the design of construction and road machines, including the possibility of integration with settlement systems (such as MatLab, Simulink, Ansys). The results of the research will be presented in future publications.