Структура програмних модулів та процедур комп’ютерної програми для основних елементів системи при реалізації алгоритму рекурсії

Abstract

На основі реалізації алгоритму рекурсії розроблені модулі та процедури комп’ютерної програми для визначення натягу нитки в робочій зоні текстильних та трикотажних машин у випадку використання різних типів пристроїв для забезпечення натягу та направляючих елементів у формі циліндричних поверхонь та поверхонь у формі тора. Представлені програмні модулі та процедури для визначення натягу, при використанні основних елементів для забезпечення натягу та направляючих елементів у формі циліндричних поверхонь та поверхонь у формі тора системи подачі нитки на текстильних та трикотажних машинах, комп’ютерної програми реалізації алгоритму рекурсії. Представлені програмні модулі та процедури комп’ютерної програми для визначення натягу в робочій зоні на текстильних та трикотажних машинах з урахуванням діаметру перетину нитки, її фізико-механічних властивостей для широкого спектру комплексних ниток та пряжі. Програмними модулями передбачена можливість завдання закону зміни діаметру перетину нитки у вигляді гармонічної функції або довільній функції користувача з використанням зворотних польських записів у вигляді транслятора.

Based on the implementation of the recursion algorithm, modules and procedures of a computer program for determining the tension of the thread in the working area of textile and knitting machines in the case of using different types of devices to provide tension and guide elements in the form of cylindrical surfaces and torus surfaces. Software modules and procedures for determining tension, using basic elements to provide tension and guide elements in the form of cylindrical surfaces and surfaces in the form of a torus of the thread feed system on textile and knitting machines, a computer program for the implementation of the recursion algorithm. Software modules and computer program procedures for determining the tension in the working area on textile and knitting machines, taking into account the diameter of the thread, its physical and mechanical properties for a wide range of complex threads and yarns. The software modules provide the possibility of setting the law of changing the diameter of the thread in the form of a harmonic function or an arbitrary function of the user using inverse Polish records in the form of a translator. Simple textile and knitting machines are associated with the elimination of thread breakage. This negatively affects the productivity of textile and knitwear machines, reduces the quality of textiles and knitwear. The main parameter of optimization of the thread feed system on textile and knitting machines is the minimum required tension in the working area. The breakage of threads during processing on textile and knitting machines is due to the imperfection of the thread feeding system on technological machines and its components. The largest number of breaks falls on the area of different types of devices to provide tension and guide elements in the form of cylindrical surfaces and surfaces in the form of a torus. Studies of the influence of the design of different types of devices to provide tension and guide elements in the form of cylindrical surfaces and surfaces in the form of a torus on the conditions of their interaction with the thread taking into account its uneven cross-sectional diameter are important in determining tension in the working area. The thread tension increases when passing through the refueling zones of the thread supply system on textile and knitting machines. This increase is due to the interaction of the thread with different types of devices to provide tension and guide elements in the form of cylindrical surfaces and surfaces in the form of a torus. The maximum value of tension will be in front of the working area of technological machines. Minimizing the tension in front of the work area is important for improving technological processes from the standpoint of improving the productivity of technological machines and product quality. Thus, the topic of this article is relevant, which is important for improving the system of thread supply on textile and knitting machines, the design of existing types of devices to provide tension and guide elements in the form of cylindrical surfaces and surfaces in the form of torus. Development of special computer programs for determining the tension in the working area of textile fabric and knitwear on textile and knitwear machines allows you to quickly determine the necessary technological parameters, to adjust both the structure and components of the thread feed system on technological machines to obtain the minimum required tension in the working area of the formation of textile fabrics and knitwear. Objects and methods of research. Various types of devices for providing tension and guide elements in the form of cylindrical surfaces and surfaces in the form of a torus are an integral part of the thread feeding system of textile and knitting machines. The imperfection of the design of different types of devices for providing tension and guide elements in the form of cylindrical surfaces and surfaces in the form of a torus on technological machines leads to fluctuations in the tension of the thread during its processing and violation of the technological regime. The theoretical basis for solving scientific and technical problems are the works of leading scientists in the fields of technology of textile and knitwear production, textile materials science, thread mechanics, elasticity theory, mathematical modeling. Theoretical and experimental research uses methods of theoretical mechanics, resistance of materials, experimental planning and statistical processing of research results.