{"title":"Wave and Physical-Chemical Methods for Managing the Development of Oil Fields with Anomal Reserves","authors":"A. V. Akhmetzyanov, A. V. Samokhin","doi":"10.1134/S0005117924700310","DOIUrl":"10.1134/S0005117924700310","url":null,"abstract":"<p>When extracting oil from reservoirs, the use of active physical and chemical reagents in combination with high-frequency wave oscillations as control actions leads to an increase in the oil recovery factor due to the involvement in the process of displacement of reserves that cannot be recovered by traditional flooding (with the injection of water into injection wells). The article presents results of numerical experiments using a mathematical model of cylindrical waves in the direction of the filtration flow of fluids; the effectiveness of cyclic control wave influences is shown. Complex problems associated with the application of hydrodynamic methods to weakly discontinuous vibrations in an inhomogeneous medium are noted and ways to resolve these problems are indicated. It is shown that the proposed combined methods of control influences on the process of filtration displacement of anomalous and difficult-to-recover oil fractions from oil-saturated porous media of natural deposits provide an increase in the final oil recovery factor by potentially 10–15%.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 10","pages":"857 - 866"},"PeriodicalIF":0.6,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Diagnosis of Uncertain Systems with Arbitrary Relative Degree and Unknown Input","authors":"A. A. Margun, V. H. Bui, A. A. Bobtsov","doi":"10.1134/S0005117924700243","DOIUrl":"10.1134/S0005117924700243","url":null,"abstract":"<p>The problem of detecting sensor and actuator faults for a class of multivariable systems with arbitrary relative degree is considered. The proposed solution is based on the synthesis of unknown input observers. A modification is proposed that ensures a predefined convergence time, which is based on the dynamic regressor extension and mixing method and the Kreisselmeier scheme. The obtained solution is extended to the class of nonlinear systems with parametric uncertainties. Simulation results are provided to illustrate the effectiveness of the proposed approach.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 11","pages":"963 - 977"},"PeriodicalIF":0.6,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Models of Equipment Selection for Modernization of Enterprises with Conveyor Assembly of Products","authors":"E. N. Khobotov","doi":"10.1134/S0005117924700358","DOIUrl":"10.1134/S0005117924700358","url":null,"abstract":"<p>The article deals with problems of equipment selection and replacement arising during modernization of machine-building enterprises, where the assembly of manufactured products is carried out on conveyors. The author proposes methods for these tasks, which allow determining types and quantity of equipment, which should be purchased and which it is expedient to get rid of during modernization of enterprises.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 10","pages":"906 - 918"},"PeriodicalIF":0.6,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stabilization of Nonlinear Continuous-Discrete Dynamic Systems with a Constant Sampling Step","authors":"S. V. Akmanova","doi":"10.1134/S0005117924700218","DOIUrl":"10.1134/S0005117924700218","url":null,"abstract":"<p>This paper considers nonlinear continuous-discrete (hybrid) systems containing two subsystems of differential and difference equations, respectively, and one-dimensional (scalar) or multidimensional (vector) control. The transition from a nonlinear hybrid system with a constant sampling step <i>h</i> > 0 to an equivalent, in a natural sense, nonlinear discrete dynamic system is presented. Sufficient conditions are established, first, for reducing the first approximation systems of nonlinear discrete systems to the Brunovský canonical form and, second, for stabilizing such systems and nonlinear hybrid systems with control of different dimensions. Algorithms for constructing stabilizing control laws for nonlinear hybrid systems are developed. Numerical examples are provided to illustrate the effectiveness of this approach to stabilizing nonlinear hybrid dynamic systems.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 9","pages":"767 - 780"},"PeriodicalIF":0.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An Adaptive Stabilization Scheme for Autonomous System Oscillations","authors":"V. N. Tkhai","doi":"10.1134/S000511792470019X","DOIUrl":"10.1134/S000511792470019X","url":null,"abstract":"<p>A smooth autonomous system of general form is considered. A global family of non-degenerate periodic solutions by the parameter <i>h</i> is constructed; the period varies monotonically on this family. The problem of stabilizing the oscillations of the reduced controlled system is solved. A smooth autonomous control law with a parameter depending on <i>h</i> is applied, and an attracting cycle is constructed. The results are concretized for an <i>n</i>th-order differential equation. The relation of these results with the conclusions obtained for the reversible mechanical system is established. An adaptive control scheme for the reduced conservative system is proposed to stabilize any oscillation of the family. Some applications are presented.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 9","pages":"795 - 804"},"PeriodicalIF":0.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adaptive Auxiliary Loop for Output-Based Compensation of Perturbations in Linear Systems","authors":"A. Glushchenko, K. Lastochkin","doi":"10.1134/S000511792470022X","DOIUrl":"10.1134/S000511792470022X","url":null,"abstract":"<p>The problem of output-feedback compensation of bounded additive perturbations affecting a minimum-phase linear system with unknown parameters is considered. An adaptive auxiliary loop is developed, which does not require to know the perturbation model and allows one to: (a) separate the processes of estimation of parametric and additive perturbations, (b) estimate and compensate for the additive perturbation with any given accuracy if the conditions of the parametric identifiability are met. The above-mentioned separated estimation of two disturbances of different nature is achieved by augmentation of the A.M. Tsykunov auxiliary loop method with the law to identify the unknown parameters, which is based on the instrumental variables approach and the procedure of dynamic regressor extension and mixing (DREM). The obtained system of the additive perturbations compensation has a certain potential to be used together with the conventional industrial PI-, PID-controllers. The theoretical results of this study are validated via mathematical modelling.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 9","pages":"741 - 766"},"PeriodicalIF":0.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aggregate Estimates of Reflexive Collective Behavior Dynamics in a Cournot Oligopoly Model","authors":"G. I. Algazin, D. G. Algazina","doi":"10.1134/S0005117924700176","DOIUrl":"10.1134/S0005117924700176","url":null,"abstract":"<p>This paper considers an oligopoly model with an arbitrary number of Cournot-reflexive agents under incomplete information in the classical case of linear cost and demand functions. Agents make decisions based on a collective behavior model. The problem of identifying convergence conditions to the model equilibrium is studied, with an emphasis placed on the trajectory of the sum of the action residuals of all agents. Aggregate estimates of this trajectory are obtained. They can be used to judge how the trajectory of each agent evolves towards the equilibrium.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 9","pages":"821 - 831"},"PeriodicalIF":0.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On Reliability of Repairable Hot Double Redundant System with Arbitrarily Distributed Life and Repair Times of Its Elements","authors":"V. V. Rykov, N. M. Ivanova","doi":"10.1134/S0005117924700188","DOIUrl":"10.1134/S0005117924700188","url":null,"abstract":"<p>The article introduces the concept of Marked Markov processes, which are used to study a repairable hot double redundant system with a single repair facility. It is assumed that components’ life- and repair times follow arbitrary distributions. The proposed approach allows for calculating the system’s reliability function, and its mean lifetime, as well as conducting the sensitivity analysis to the shape of input distributions. The new method was validated with numerical examples by comparing it with previously obtained analytical results and showed high accuracy.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 9","pages":"805 - 820"},"PeriodicalIF":0.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Stability of Regular Precessions of a Body with a Fixed Point Bounded by the Ellipsoid of Revolution in a Flow of Particles","authors":"A. S. Kuleshov, M. M. Gadzhiev","doi":"10.1134/S0005117924700206","DOIUrl":"10.1134/S0005117924700206","url":null,"abstract":"<p>Stability of regular precessions of a rigid body bounded by the ellipsoid of revolution in a free molecular flow of particles is studied. Conditions of stability of regular precessions of the body are obtained and the Poincare–Chetaev bifurcation diagrams are constructed.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 9","pages":"781 - 794"},"PeriodicalIF":0.6,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142778382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Study of the Strategic Consequences of a Scoring Model Disclosure","authors":"G. M. Kryukov, M. S. Sandomirskaia","doi":"10.1134/S0005117924700139","DOIUrl":"10.1134/S0005117924700139","url":null,"abstract":"<p>In this paper, the disclosure of information about the scoring model is investigated. Some of the company’s customers find out their internal rating in the company. Such customers can change their behavior to increase their internal rating. The customers who are aware of the leakage are represented as players who can choose a strategy: whether to increase their internal rating and, if so, how much. The main goal is to find the Bayesian–Nash equilibrium in this game and find out how it depends on various parameters, such as the scale of the leakage, the distribution of ratings.</p>","PeriodicalId":55411,"journal":{"name":"Automation and Remote Control","volume":"85 8","pages":"696 - 710"},"PeriodicalIF":0.6,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}