ISSN 1991-2927
 

ACP № 2 (56) 2019

'Automation of Control Processes' # 3 (53) 2018

Contents
AUTOMATED CONTROL SYSTEMS

Iurii Petrovich Egorov, Federal Research-and-Production Center Joint Stock Company ‘Research-and-Production Association ‘Mars’, Doctor of Science in Engineering, Professor; graduated from the Faculty of Radioengineering at the Admiral Makarov Leningrad Higher Maritime School of Engineering; Chief Staff Scientist at Federal Research-and-Production Center Joint Stock Company ‘Research-and-Production Association ‘Mars’; specializes in the field of macro-design of large-scale information management systems; an author of monographs, articles, inventions in the field of computer-aided control systems design. [e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ]I. Egorov,

Anatolii Ivanovich Piatakov, FRPC JSC ‘RPA ‘Mars’, Candidate of Science in Engineering; graduated from the Marshal Budjonny Military Academy of Signal Corps; completed his postgraduate studies ibidem; Chief Specialist of FRPC JSC ‘RPA ‘Mars’; specializes in the field of organization and creation of discrete messages transmitting systems; an author of articles in the field of the automation complexes reliability and data communication. [e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ]A. Piatakov

Optimization of Automated Troop Command and Control System Operation Effectiveness in Terms of Reliability Criterion 53_1.pdf

A right selection between performance evaluation of effectiveness and functioning of automation solutions for automated troop command and control systems (hereinafter referred to as the C2 Systems) is the most important research aspect of its functioning effectiveness. C2 Systems, like any other large hardware and software complexes, have a range of technical features that provide meeting of requirements for these systems. Requirements in its turn are of regulatory nature specified in directive documents on automation of the Armed Forces of the Russian Federation. Reliability is one of the important features that have an impact on effectiveness of C2 Systems functioning. The article deals with a model of estimation of C2 Systems functioning when hardware and software failure. The estimation of C2 Systems effectiveness was demonstrated to refer to deterministic evaluation procedures and it can be represented as a multiplicative convolution of reliability performance. Two approaches to the estimation of effectiveness were unveiled and one of these approaches was chosen on a reasonable basis. The presented techniques allow changing the specific reliability performances of specific hardware and software complexes to a summarized system reliability value pertaining to a target function of the automated complex. The given approach to optimization of automated complexes in terms of cost-effectiveness factor allows to achieve the required performances at minimal costs.

Reliability, reliability evaluation, estimation of effectiveness, reliability of automated systems, reliability performance, retention factor.


Andrei Feliksovich Zalmarson, the Military Educational-and-Research Centre Naval Academy named after ‘Admiral of the Fleet of the Soviet Union N.G. Kuznetsov’ (Naval Academy), Candidate of Military Sciences; graduated from the Faculty of Radiocommunications of the Higher Naval School of Radioelectronics named after A.C. Popov, Higher Military Officer Training Courses, the Military Educational-and-Research Centre Naval Academy named after ‘Admiral of the Fleet of the Soviet Union N.G. Kuznetsov’ (Naval Academy); Senior Staff Scientist of the Military Educational-and-Research Centre ‘Naval Academy’; specializes in justification of creation and development of military-oriented automated command and control systems; an author of articles and papers in the subject area. [e-mail: ]A. Zalmarson,

Vasilev, Military Educational-and-Research Centre ‘Naval Academy’, graduated from the Faculty of Automated Command and Control Systems of the Higher Naval School of Radioelectronics named after A.C. Popov; Senior Staff Scientist - Deputy Head of the Department of the Military Educational-and-Research Centre ‘Naval Academy’; specializes in justification of creation and development of military-oriented automated command and control systems; an author of articles and papers in the subject area. [e-mail: tanu4a@bk.ru]V. Vasilev,

Mikhail Igorevich Eletskii, Military Educational-and-Research Centre ‘Naval Academy’, graduated from the Faculty of Automated Command and Control Systems of the Higher Naval School of Radioelectronics named after A.C. Popov; Staff Scientist of the Military Educational-and-Research Centre ‘Naval Academy’; specializes in justification of creation and development of military-oriented automated command and control systems; an author of articles and papers in the subject area. [e-mail: m.yeletsky@gmail.com]M. Eletskii,

Stepan Sergeevich Sidorov, Military Educational-and-Research Centre ‘Naval Academy’, graduated from the Faculty of Mathematical Support of Automated Command and Control Systems of the Higher Naval School of Radioelectronics named after A.C. Popov; Head of the Department - Assistant Head in Affairs for National Security Information security of the Military Educational-and-Research Centre ‘Naval Academy’; specializes in information of military-oriented automated command and control systems; an author of articles and papers in the subject area. [e-mail: sidorov_stepan@inbox.ru]S. Sidorov

System-wide Performance Indicators of Automated Command and Control Systems (software-hardware Complexes) 53_2.pdf

A series of articles [1-8] deals with algorithms, criteria, and hierarchical system for performance evaluation of automated command and control systems when developing a complex approach to the evaluation of effectiveness of automated C2 systems and software-hardware complexes. The upper level of performance criteria as well as typical performance indicators in sum have been already analyzed in these publications. The present article considers system-wide performance indicators of automated command and control systems (software-hardware complexes).

Automated control system, criterion, software-hardware complex, feature, system performance, typical performance indicator, effectiveness.

Maksim Olegovich Beliakov, Joint Stock Company ‘Research-and-Production Enterprise ‘Rubin’, graduated from Penza State University; Software Engineer at Joint Stock Company ‘Research-and-Production Enterprise ‘Rubin’; an author of articles in the field of software development, system analysis. [e-mail: sort@protomail.com]M. Beliakov,

Roman Vadimovich Riabchikov, Joint Stock Company ‘Research-and-Production Enterprise ‘Rubin’, Candidate of Science in Engineering; graduated from Penza State Technological Academy; Software Engineer at Joint Stock Company ‘Research-and-Production Enterprise ‘Rubin’; an author of articles and inventions in the field of system analysis, neural network modeling. [e-mail: starwalker58@gmail.com]R. Riabchikov

Problems of Coordinate Data Translation in the Air Defense Task Force of a Tactical Unit 53_3.pdf

The article deals with problems arising when interchanging the information on aircrafts location in the air defense task force of a tactical unit. Basic factors of coordinate information deviation when transmitting such as delays in communication channel, adjustment error of information sources and data receivers, limitations of information traffic capacity are considered. A concept of common logical coordinate system utility as well as the ways of its creation is proposed. This principle allows to correct errors when coordinate data transmitting which are caused by errors of fire weapon adjustment, it can be of a great importance in the case of navigation equipment failure. A version of coordinate information tracking is proposed, and the scenarios of its application are described. The article considers problems on optimal detection of check point as well as possibilities for extending the accuracy of data transmitted.

Ant-air defense (aad), tactical unit, coordinates, navigation.

INFORMATION SYSTEMS

Dmitrii Vladimirovich Ganin, Nizhny Novgorod State University of Engineering and Economics, Candidate of Science in Economics, Associate Professor; graduated from Nizhny Novgorod State Agricultural Academy; Vice-Rector for Scientific Affairs and Innovation Development of the Nizhny Novgorod State University of Engineering and Economics; an author of 35 scientific papers among them in the field of communication theory. [e-mail: ngiei135@mail.ru]D. Ganin,

Roman Vladimirovich Klimov, Nizhny Novgorod State University of Engineering and Economics, graduated from Ulyanovsk State Technical University, Assistant Professor of the Department of Information and Communication Technologies and Systems at the Nizhny Novgorod State University of Engineering and Economics; an author of articles, monograph, and patents in the field of communication theory. [e-mail: klimov_exp@mail.ru]R. Klimov,

Pavel Nikolaevich Romanov, Nizhny Novgorod State University of Engineering and Economics, graduated from the Moscow Technical University of Communications and Informatics; Assistant Professor of the Department of Information and Communication Technologies and Systems at the Nizhny Novgorod State University of Engineering and Economics; an author of articles in the field of soft decoding redundant codes. [e-mail: pavel.romanov011@gmail.com]P. Romanov,

Dmitrii Aleksandrovich Semenov, Nizhny Novgorod State University of Engineering and Economics, Candidate of Science in Engineering, Associate Professor; graduated from the Nizhny Novgorod State University of Engineering and Economics; Head of the Department of Information and Communication Technologies and Systems at the Nizhny Novgorod State University of Engineering and Economics; an author of articles in the field of power engineering. [e-mail: xxxmy@mail.ru]D. Semenov,

Aleksandr Evgenevich Borisov, FRPC JSC ‘RPA ‘Mars’, graduated from Ulyanovsk State Agricultural Academy; Engineer of FRPC JSC ‘RPA ‘Mars’; specializes in the field of soft decoding redundant codes. [e-mail: ]A. Borisov

Creation of Regenerative Codes and Local Codes on the Basis of Production Codes With Even Parity 53_4.pdf

Tasks on optimal problem solving in the selection of noise-resistant coding schemes arise when designing and developing new data storage systems (Storage). Storage reliability, redundancy, data availability, the amount of data traffic that occurs in the conditions of failure of individual storage devices can be referred to the criteria of optimal Storage. Methods of correcting coding, traditionally used in Storage, do not allow to achieve multi-criteria optimality for all described parameters. The use of regenerative and locally decoded codes is a solution for a problem of finding the optimal approach to correcting coding. The paper presents an approach to the implementation of the construction of regenerative codes based on the use of the product of codes with a simple test for parity with the shift of control characters of storage areas. The proposed method allows to reduce the load on the data transmission network in the cases of reconstruction procedures of lost storage devices. The method of construction of locally decoded codes on the basis of the product of codes with parity check of any dimension is also presented.

Distributed data storage systems, regeneration coding, locally decodable codes, product codes with a simple even parity.

Dionisii Igorevich Shlykov, FRPC JSC ‘RPA ‘Mars’, graduated from the Faculty of Mathematics, Information and Aviation Technologies of Ulyanovsk State University; Software Engineer at FRPC JSC ‘RPA ‘Mars’; an author of articles in the field of information security. [e-mail: shlykov.di@mail.ru]D. Shlykov

On Speed Cipher Implementation Using Aes Algorithm in Sdicrypt-library 53_5.pdf

The article deals with methods for improving the efficiency of symmetric ciphers illustrated by the example of AES algorithm that is an international advanced encryption standard of block ciphers ISO/IEC 18033-3:2010. It is demonstrated that these methods allow to exceed the popular cryptographic libraries OpenSSL и Crypto++ in speed performance twice and more than twice. Speed performance curves of algorithms for encryption and decryption information using AES algorithm from the developed library and the corresponding curves relative to OpenSSL и Crypto++. libraries are considered.

Cipher, symmetric cipher, aes algorithm, hardware implementation, gpu computing.

Nafis Gishkullovich Talipov, Kazan National Research Technical University named after A.N. Tupolev-KAI, Candidate of Science in Engineering; graduated from the Pacific Higher Naval School named after S.O. Makarov; Associate Professor of the Information Security Systems Department of the Kazan National Research Technical University named after A.N. Tupolev-KAI (KNRTU-KAI); an author of scientific works in the field of mathematical modeling, decision support systems, fuzzy methods of rational choice of alternatives. [e-mail: talipovng@gmail.com]N. Talipov,

Aleksei Sergeevich Katasev, Kazan National Research Technical University named after A.N. Tupolev-KAI, Candidate of Science in Engineering; graduated from the Faculty of Physics and Mathematics of Elabuga State Pedagogical Institute; Associate Professor of the Information Security Systems Department of the KNRTU-KAI; an author of scientific works in the field of mathematical modeling, data mining, decision support systems. [e-mail: Kat_726@mail.ru]A. Katasev,

Sofia Sergeevna Kildeeva, Kazan National Research Technical University named after A.N. Tupolev-KAI, graduated from the Institute of Computer Technologies and Information Security of the KNRTU-KAI; Master Student of the Information Security Systems Department of the KNRTU-KAI; an author of scientific works in the field of mathematical modeling. [e-mail: Sofi-pi@mail.ru]S. Kildeeva,

Dina Vladimirovna Kataseva, Kazan National Research Technical University named after A.N. Tupolev-KAI, graduated from the Faculty of Enterprise Economics of the Kazan State Financial and Economic Institute; Senior Lecturer of the Information Security Systems Department of the KNRTU-KAI; an author of scientific works in the field of mathematical modeling, analysis and forecasting of time series. [e-mail: 415pisarevadv@mail.ru]D. Kataseva

Automation of Tasks Distribution Process in Electronic Document Management Systems Based on Fuzzy-production Model 53_6.pdf

This article solves the problem of tasks distribution to performers in electronic document management systems. A fuzzy product model is being developed to solve this problem. Its construction required fuzzy-product rules type choice, their construction methodology development, an output on rules algorithm, as well as methods for membership functions constructing and fuzzy rules reliability determining. On the basis of the proposed methods and algorithms, a software package was developed, that supports decision-making in task performer’s choice. The software package structure, the developed model adequacy experiments results, as well as its practical use results are presented.

Electronic document management, task distribution, fuzzy product model, software complex, decision making.

Kirill Valerevich Sviatov, Ulyanovsk State Technical University, Candidate of Science in Engineering; graduated from Ulyanovsk State Technical University; Dean of the Faculty of Information Systems and Technologies at Ulyanovsk State Technical University; an author of articles, monographs, textbooks, and certifications of software registration in the field of machine learning and robotic engineering. [e-mail: k.svyatov@ulstu.ru]K. Sviatov,

Aleksandr Viacheslavovich Mikheev, Ulyanovsk Regional Center of New Information Technologies at UlSTU, graduated from Ulyanovsk State Technical University; software engineer of the Ulyanovsk Regional Center of New Information Technologies at UlSTU; interested in the field of machine learning. [e-mail: a.miheev@simcase.ru]A. Mikheev,

Maksim Andreevich Shliamov, Ulyanovsk State Technical University, Student of the Faculty of Information Systems and Technologies at Ulyanovsk State Technical University; interested in the field of machine learning. [e-mail: m.shlyamov@simcase.ru]M. Shliamov

Software Package for Visual Monitoring of the Cargo Transportation 53_7.pdf

The article considers the process of designing and implementing a software package to check the completeness of trucks loading when passing checkpoints using technical vision algorithms and machine learning methods. Load completeness checking is used in the governmental supervision of the Russian roads operation as well as checking the cargo transportation volume by private companies when executing orders under the agreements for cargo transportation services. The article deals with the problem of supervising the volume of transported cargo in open-top trucks with bulk non-metallic materials (sand, gravel, coal). Currently, the problem of road-freight transport weight-checking is solved in most cases by the use of weighing units. Also, there are solutions when ultrasonic distance sensors are used that generate a signal corresponding to the shape of the vehicle when driving under several sensors. However, these solutions are quite expensive to install, they do not consider the difference between signals when various vehicle types or models are used on one route. In addition, the weight does not always reflect the completeness of the load body because some materials weigh much more than payload at low volume. And under different weather conditions (e.g. high humidity), the mass of certain goods can vary significantly within 15 percent. At the same time, the transportation efficiency is estimated based on the minimum possible number of passes for the export of cargo of the given volume. The vision systems allow to solve the problem on checking the transported bulk cargo volume. The article focuses on the development description of such a system.

Computer-aided design, artificial intelligence, neural networks, machine learning, computer vision.

Ilia Vladimirovich Zhuikov, Volga State University of Technology, Postgraduate Student; graduated from the Department of Applied Mathematics and Information Technologies of Volga State University of Technology; an author of articles in the field of intelligent test systems. [e-mail: zhuikill@yandex.ru]I. Zhuikov,

Igor Nikolaevich Nekhaev, Volga State University of Technology, Candidate of Science in Engineering, Associate Professor of the Department of Applied Mathematics and Information Technologies of Volga State University of Technology, Head of the e-Learning Center of Volga State University of Technology; an author of scientific papers in the field of soft computing, fuzzy logic, and e-learning. [e-mail: nehaevin@volgatech.net]I. Nekhaev

Application of Lp-structures When Constructing the Intelligent Test System 53_8.pdf

Tasks of competence level are complex tasks for solving which is not enough only knowledge, so learning and testing systems should be able to simulate structures of gradually complicating tasks. In some cases, these structures can be modeled using mathematical lattices describing the structure of cases with additional attitude of complication. This article describes a model of the lattice of non-complication of cases for the subject domain. A method for specifying and constructing such lattice using finite LP-structures and applying operations of transitive closure on the lattice of clarification of case situations is proposed. In conclusion, the example of using this approach to construct intelligent test system of the ability to perform solve tasks of comparing numbers from the domain of arithmetic of natural numbers is considered. It is shown that this approach could be used for further analyzing the results of solutions and to construct a more pragmatic lattice of complication of cases and test tasks.

Lp-структура, competency-based approach, intelligent test system, lattice of complication of cases, lp-structure.

MATHEMATICAL MODELING

Aleksandr Kupriianovich Ivanov, Federal Research-and-Production Center Joint Stock Company ‘Research-and-Production Association ‘Mars’, Doctor of Science in Engineering; graduated from the Faculty of Physics of Irkutsk State University; completed his postgraduate studies at Bauman Moscow Higher Technical School and his doctoral studies at Ulyanovsk State Technical University; Chief Staff Scientist at Federal Research-and-Production Center Joint Stock Company ‘Research-and-Production Association ‘Mars’; an author of monographs, articles, and a manual in the field of mathematical modeling of hierarchical real-time computer-aided control systems. [e-mail: mars@mv.ru]A. Ivanov

Distribution Laws of Stochastic Data Volumes on Hierarchical System Objects 53_9.pdf

The article determines analytical dependences of information resource volumes on objects of the hierarchical control system from initial data volumes incoming to the system. The article considers the following variants such as control when initial data is executive orders from an object of high level; and situation data acquisition and analyzing when initial data comes from an object of low level. It is assumed output data volume at each level to be proportional to input data volume. The calculation procedures of distribution laws and numerical characteristics of stochastic data volumes of all objects at known distribution laws of initial data and random conversion ratio of input data into output data are specified. A simulation model of the hierarchical system is created which allows to obtain distribution functions and probability density of stochastic data volumes of all objects based on known numerical characteristics of the initial data. The simulation results are presented that demonstrate the principle possibility of obtaining distribution laws and their approximation by the normal law.

Hierarchical systems, stochastic variables, distribution law, simulating modeling.

Andrei Evgenievich Kukin, FRPC JSC ‘RPA ‘Mars’, Postgraduate Student of the Department of Telecommunication Technologies and Networks of Ulyanovsk State University; graduated from the Information Technology Department of UlSU; Software Engineer of FRPC JSC ‘RPA ‘Mars’; an author of articles in the field of software development for automated command and control systems. [e-mail: mars@mv.ru]A. Kukin,

Aleksandr Nikolaevich Piftankin, FRPC JSC ‘RPA ‘Mars’, Candidate of Science in Engineering, ; graduated from the Faculty of Mechanics and Mathematics at UlSU; Chief Specialist of FRPC JSC ‘RPA ‘Mars’; an author of articles in the field of automation of fighter aircraft control and action planning. [e-mail: mars@mv.ru]A. Piftankin,

Aleksandr Sergeevich Gutorov, FRPC JSC ‘RPA ‘Mars’, Candidate of Science in Engineering; graduated from the Faculty of Radioengineering of Ulyanovsk State Technical University; Chief Designer of FRPC JSC ‘RPA ‘Mars’; an author of articles in the field of statistical methods for signal processing. [e-mail: mars@mv.ru]A. Gutorov,

Aleksandr Aleksandrovich Lushnikov, FRPC JSC ‘RPA ‘Mars’, Postgraduate Student of Ulyanovsk Civil Aviation Institute named after Air Chief Marshal B.P. Bugaev; graduated from the Faculty of Radioengineering of Ulyanovsk State Technical University; Deputy Chief Designer of FRPC JSC ‘RPA ‘Mars’; an author of articles in the field flight operation safety and automatic flight and traction control of aircraft. [e-mail: a.lushnikov@mail.ru]A. Lushnikov

The Model for Forming the Flight Profile of an Aircraft Using Dynamic Programming Tools 53_10.pdf

The article deals with the process of forming the flight profile of an aircraft. Calculation and selection of the optimal flight profile of aircraft are some of the most common issues in the tasks related to the planning of aviation operations. The flight profile in the coordinates ‘range-altitude’ is a sequence of areas each of which corresponds to a specific program for changing altitude and speed. The construction of the flight trajectory of an aircraft is characterized by the work with a large number of nonlinearly varying dependent parameters and taking into account the restrictions imposed on flights: the permitted echelons of aviation flight altitudes, forbidden zones with unacceptable meteorological conditions, forbidden zones of action of enemy air defenses. These factors make it very difficult to model the specified process. The application of the mathematical apparatus of dynamic programming in solving this problem can allow the most efficient choice of flight modes of aircraft and optimize the process of forming the flight profile as a whole.

Fighter aircrafts, flight profile, optimization algorithm, dynamic programming.

Oleg Vladimirovich Saverkin, FRPC JSC ‘RPA ‘Mars’, graduated from the Faculty of Radioengineering of Ulyanovsk State Technical University with the specialty in Telecommunications Networks and Connecting Systems; Postgraduate Student of UlSTU, Research Engineer of FRPC JSC ‘RPA ‘Mars’; an author of articles in the field of statistical signal processing. [e-mail: saverkin-oleg@mail.ru]O. Saverkin

On the Efficiency of Trajectory Filtering in Fixed Coordinate System 53_11.pdf

The article presents the analysis results of algorithms for estimating the motion parameters of the accompanying objects based on the application of the Kalman filter. It is shown that the application of some known algorithms is associated with the need to perform complex mathematical operations, and under certain conditions can lead to significant errors. It is established that the use of filtering in fixed coordinate system in the algorithm allows taking into account data on the direction and maneuvering of the object thereby increasing the accuracy and tracking stability. At the same time, simplicity of implementation is preserved when using the linear Kalman filter.

Object tracking, trajectory parameters estimation, fixed coordinate system, kalman filter.

ELECTRICAL ENGINEERING AND ELECTRONICS

Mikhail Konstantinovich Samokhvalov, Ulyanovsk State Technical University, Doctor of Sciences in Physics and Mathematics, Professor; graduated from the Faculty of Physics of Saratov State University named after N.G. Chernyshevsky; Professor of the Department of Electronic Instrumentation Design and Technology at Ulyanovsk State Technical University; an author of articles and monographs in the field of optoelectronics. [e-mail: sam@ulstu.ru]M. Samokhvalov

Modeling the Brightness Dynamics of Thin-film Electroluminescent Capacitors 53_12.pdf

The processes of excitation of luminescence of thin-film electroluminescent capacitors within the model of direct shock excitation of activator centers in the luminophore are analyzed. Mathematical modeling of the dynamics of the brightness of radiation sources is carried out on the basis of the solution of the nonlinear ordinary differential equation describing the kinetics of changes in the density of excited centers of luminescence in the phosphor film. A program for numerical solution of nonlinear equation of luminance dynamics by Runge-Kutt method using a computer is developed. It is shown that the duration of transient processes determined by the brightness waves reaches 8-10 periods of applied alternating voltage. In order to obtain high brightness levels of electroluminescent indicators, it is necessary to excite the indicator elements with suites of alternating voltage pulses, the duration of which must be at least the time of reaching the steady-state operation.

Thin film electroluminescent capacitor, brightness, phosphor, electroluminescence, indicator.

Rudolf Aleksandrovich Brazhe, Ulyanovsk State Technical University, Doctor of Sciences in Physics and Mathematics, Professor, Head of the Department of Physics at Ulyanovsk State Technical University; graduated from the Faculty of Physics of Saratov State University named after N.G. Chernyshevsky; an author of numerous scientific papers, monographs, tutorials, and invention certificates; has research interests in the field of wave processes, meta- and nanomaterials, nanoelectronics, and control system elements [e-mail: brazhe@ulstu.ru]R. Brazhe,

Andrei Fedorovich Savin, RITG, LLC, graduated from the Faculty of Physics and Mathematics of Ulyanovsk State Teachers University named after I.N. Ulyanov; Lead Analyzer of RITG, LLC; an author of publications in the field of mathematical modeling of nanoscale radioengineering components. [e-mail: a_f_savin@mail.ru]A. Savin

Electric Characteristics of Sensing Elements of Resonance Nanosensors for Robotic Systems Based on Spiral Nanotubes 53_13.pdf

Sensing devices of nanosensors for robotic and biorobotic systems based on separate spiral nanotubes draw an attention of researchers both as from the point of view of opportunities of their design with the use of the temporary nanotechnologies as from the point of view of their high sensitivity to external influences. Owing to deformation of nanocoil as a result of external influence, its impedance changes, and a shift of a resonant frequency appears. It is shown that the resonant frequency of such nanosolenoids can reach tens petahertz, and its shift can make the tenth shares of petahertz as a result of nanocoil’s length change for 1 percent.

Spiral nanotubes, resonant nanosensors, impedance properties.

Rudolf Aleksandrovich Brazhe, Ulyanovsk State Technical University, Doctor of Sciences in Physics and Mathematics, Professor, Head of the Depart-ment of Physics at Ulyanovsk State Technical University; graduated from the Faculty of Physics of Saratov State University named after N.G. Chernyshevsky; an author of numerous scientific papers, monographs, tutorials, and invention certificates; has research interests in the field of wave processes, meta- and nanomaterials, nanoelectronics, and control system elements. [e-mail: brazhe@ulstu.ru]R. Brazhe

Mechanical Characteristics of Electromechanical Resonators Based on Spiral Nanotubes 53_14.pdf

In electromechanical resonators shaped as spiral nanotubes, two types of resonances such as an electrical resonance like in serial RLC circuit and the mechanical one like in a coil spring can exist. Both types of resonances can be used for designing the sensing devices of resonance nanosensors for robotic and biorobotic systems though their resonant frequencies strongly differ from each other. This paper deals with a comparison of electrical and mechanical characteristics of the electromechanical resonators based on coiled nanotubes. It is shown that the frequency of the displacement resonance in such mechanical oscillators can reach tens of gigahertz while the current resonance occurs at the frequencies reaching tens petahertz. The amplitude-frequency and phase-frequency characteristics of forced oscillations in the considered nanospirals are brought. It is shown that their mechanical figure of merit does not exceed several units and is comparable with the electrical one because of grate attenuation.

Spiral nanotubes, electromechanical resonator, resonance characteristics.

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