Analyzing of heating elements' location of distributed control objects
At the present stage of development of automatic control systems the issue of maintaining of a given temperature regime appears. The authors have developed a method of synthesis of nonlinear regulators to stabilize a control object temperature field (published by Ilyushin, Y., Pervukhin, D., Afanasieva, O., Klavdiev, A., & Kolesnichenko, S. (2014). The Methods of the Synthesis of the Nonlinear Regulators for the Distributed One-Dimension Control Objects. Modern Applied Science, 9(2), 42–61. http://dx.doi.org/10.5539/mas.v9n2p42). The resulting controller allows creating an adaptive regulated system to maintain a temperature field - to do that, it is necessary to analyze a control system in order to find an optimal number of heating elements to stabilize a temperature field. In this there have been article obtained functions for calculating an optimal number of heating elements of silicon-carbide heaters, used for a temperature treatment of various kinds of products (bread baking, metal hardening, etc.). The article describes a method to calculate the number of heating elements of n-dimensional control objects. A check of an adequacy of a mathematical model, obtained within a synthesis process is provided as well. Obtained hodographs of the system demonstrate a stability of running processes and therefore an adequacy of results.
Design of Automated Control System Supporting Temperature Field in
In the conditions of industrial automation, more and more importance is given to robotic control systems. Such systems operate in automatic mode and perform the functions of maintaining a predetermined pressure, temperature, humidity, etc. Many industrial machines use pulsed elements as control actions. Such elements in mathematics are usually expressed as a Green function. Such machines have a point effect. But the problem arises of finding the optimal location of the heating elements. This article discusses the issue of finding the place and time of switching on sectional heaters, while stabilizing the temperature field based on the Green function. Mathematical models are presented and the temperature field is studied for a three-dimensional control object. The materials of the article underwent the procedure of introduction to industrial enterprises All received software systems have patents registered in the manner prescribed by law.
Monitoring and Optimization of Internal Grinding Process
Summary The grinding process is influenced by many factors such as grinding wheel characteristics, dressing conditions and, course, grinding conditions. Therefore, it is difficult to perform the grinding operation in an optimum state. In this study, in-process monitoring methods using power and acoustics emission sensors are proposed to detect malfunctions in the internal grinding process. In addition, a new internal grinding cycle featuring rapid indeed is proposed to minimize the grinding cycle time.