| Popis: |
The purpose of the work is to create a software and mathematical support for selecting design parameters of a synchronization system due to the use of effective optimization methods at an early stage of the engineering. The object of the research is a throttle hydraulic synchronization system. Such systems are used in various fields of mechanical engineering to ensure the synchronous movement of several power actuators and structural elements of aircraft, road and construction machines, machine tools, etc. The methodology of mathematical modeling of the throttle hydraulic synchronization system in the presence of external loads applied to its actuators is presented; wherein the loads are different in sign and direction. The method of multidimensional heuristic optimization is used to justify the selection of design parameters (the so-called effective areas) of throttles. The criterion of an optimization procedure was the minimization of a mismatch time of arrival of actuators to an end point of their motion. The proposed methodology is the basis of the developed application software, which is a necessary tool for computer-aided design. The computing core and user interface of the software environment are built on modern principles of object-oriented programming. The generated class hierarchy provides the following options for a computer system developer: providing the modular debugging of the used numerical methods, testing numerical methods for a wide class of applied problems with any number of unknown functions, providing the continuity of well-established numerical methods by other application programs, adding new numerical methods to the compute core occurs without changing a stable functioning algorithmic structure of the software environment, using a combination of various finite-difference and computational optimization algorithms. The program verified on various test tasks can be used by engineering experts during performing computational experiments at the stage of selecting structural options for throttle hydraulic synchronization systems. |
