FEATURES OF THE WIRELESS ENERGY TRANSFER’S CHANNEL IN A DYNAMIC MODE

2018 ◽  
pp. 79-88 ◽  
Author(s):  
L. B. Kochin ◽  
S. Yu. Strakhov ◽  
S. A. Matveev
Keyword(s):  
Mathematical Model ◽  
Energy Transfer ◽  
Pulse Mode ◽  
Dynamic Processes ◽  
Dynamic Mode ◽  
Experimental Setup ◽  
Wireless Energy Transfer ◽  
Practical Applications ◽  
The Mathematical Model ◽  
Energy Channels

Work is devoted to wireless energy transfer to the removed devices by means of laser radiation. This problem is actual in some practical applications. The dynamic mode of the laser wireless energy transfer's channel is considered. The mathematical model is offered. Influence of terminal loading on dynamic processes in the channel is investigated. The factors increased of energy transfer channel's efficiency are analyzed. Parameters of lenses and beam expanders, accuracy of optical component's installation, uniformity of a photocell's light spot are investigated. It is shown, that in a pulse mode efficiency of energy channels depends also on an impedance of loading. Additional impedance increased of fluctuation's amplitude and reduced channel's efficiency. The description of experimental setup, data of measurements and their analysis are resulted.

scholarly journals Enzyme-Based Biosensors: Tackling Electron Transfer Issues

Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3517 ◽  
Author(s):  
Paolo Bollella ◽  
Evgeny Katz
Keyword(s):  
Mathematical Model ◽  
Electron Transfer ◽  
Fuel Cells ◽  
Glucose Oxidase ◽  
Rate Constant ◽  
Direct Electron Transfer ◽  
Redox Enzymes ◽  
Practical Applications ◽  
The Mathematical Model

This review summarizes the fundamentals of the phenomenon of electron transfer (ET) reactions occurring in redox enzymes that were widely employed for the development of electroanalytical devices, like biosensors, and enzymatic fuel cells (EFCs). A brief introduction on the ET observed in proteins/enzymes and its paradigms (e.g., classification of ET mechanisms, maximal distance at which is observed direct electron transfer, etc.) are given. Moreover, the theoretical aspects related to direct electron transfer (DET) are resumed as a guideline for newcomers to the field. Snapshots on the ET theory formulated by Rudolph A. Marcus and on the mathematical model used to calculate the ET rate constant formulated by Laviron are provided. Particular attention is devoted to the case of glucose oxidase (GOx) that has been erroneously classified as an enzyme able to transfer electrons directly. Thereafter, all tools available to investigate ET issues are reported addressing the discussions toward the development of new methodology to tackle ET issues. In conclusion, the trends toward upcoming practical applications are suggested as well as some directions in fundamental studies of bioelectrochemistry.

scholarly journals Mathematical model of dynamic processes during frictional hardening of the cylindrical surfaces of parts

2020 ◽  
Vol 100 (4) ◽  
pp. 29-39
Author(s):  
Volodymyr Gurey ◽  
Ihor Kuzio
Keyword(s):  
Mathematical Model ◽  
Metal Layer ◽  
Nanocrystalline Structure ◽  
Dynamic Processes ◽  
Special Device ◽  
Lagrange Equations ◽  
Spindle Unit ◽  
Transverse Grooves ◽  
The Mathematical Model ◽  
Frictional Hardening

The mathematical model of the elastic machine system has been developed, and describes the dynamic processes that occur during the frictional hardening of cylindrical surfaces of parts using a tool with transverse grooves on its working part, which forms a surface hardened metal layer with nanocrystalline structure. Transverse grooves on the working part of the tool increase the intensity of deformation of the surface layer in the contact area of the tool-part and the oscillating processes of the system. Differential equations that describe this process are based on Lagrange equations of the second kind. Based on the solution of the model’s the systems of equations, it is possible to determine the velocity and magnitude of displacement of a special device with autonomous drive of the tool, tool and treatment part during machining, reaction of device supports and spindle unit.

scholarly journals Machine Directional Register System Modeling for Shaft-Less Drive Gravure Printing Machines

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Shanhui Liu ◽  
Xuesong Mei ◽  
Jian Li ◽  
Li'e Ma
Keyword(s):  
Mathematical Model ◽  
System Modeling ◽  
System Model ◽  
Experimental Setup ◽  
Gravure Printing ◽  
Servo Motor ◽  
Definition Of ◽  
The Mathematical Model ◽  
Register Error ◽  
Control Accuracy

In the latest type of gravure printing machines referred to as the shaft-less drive system, each gravure printing roller is driven by an individual servo motor, and all motors are electrically synchronized. The register error is regulated by a speed difference between the adjacent printing rollers. In order to improve the control accuracy of register system, an accurate mathematical model of the register system should be investigated for the latest machines. Therefore, the mathematical model of the machine directional register (MDR) system is studied for the multicolor gravure printing machines in this paper. According to the definition of the MDR error, the model is derived, and then it is validated by the numerical simulation and experiments carried out in the experimental setup of the four-color gravure printing machines. The results show that the established MDR system model is accurate and reliable.

MATHEMATICAL MODEL OF A SWARM ROBOTIC SYSTEM WITH WIRELESS BI-DIRECTIONAL ENERGY TRANSFER

2020 ◽  
Author(s):  
К.Д. КРЕСТОВНИКОВ ◽  
А.Р. ШАБАНОВА ◽  
А.Д. КОВАЛЕВ
Keyword(s):  
Mathematical Model ◽  
Energy Transfer ◽  
Robotic System ◽  
Mathematical Framework ◽  
Wireless Power ◽  
Individual Agent ◽  
Energy Characteristics ◽  
Time And Energy ◽  
The Mathematical Model ◽  
Robot Group

Рассмотрена задача математического моделирования передачи энергии в автономной робототехнической роевой системе. Существующие математические модели не учитывают особенности беспроводной передачи энергии между агентами роя, действующими как совместно с роем, так и отдельно от него. Представлен обзор и сравнительный анализ современных исследований в данной области. Показана необходимость разработки модели исходя из энергообмена между агентами. Рассмотрена математическая модель роевой робототехнической системы, учитывающая энергетические характеристики единичного агента,группы роботов и роя в целом. Продемонстрировано успешное применение данной модели на примере гомогенных мобильных роботов МАРС в совокупности с системой беспроводной передачи энергии БСПЭ-3. In this paper the energy transfer mathematical model in terms of autonomous swarm robotic system is considered. Existing mathematical models do not account for wireless power transfer peculiarities among swarm agents, acting as together with the whole swarm, as separately from it. This paper presents review and comparative analysis of recent research in this domain. The paper shows the relevance of development of such mathematical model, that would cover energy exchange among agents. The developed mathematical model accounts for energy characteristics of an individual agent, of a robot group and of a whole swarm, as well the possibility, that the task may be executed by one or several agents. The proposed mathematical framework allows calculating time and energy, required to complete the task, particularly, the energy, transmitted between the agents with respect to the power losses of the transmission channel. The mathematical model was successfully tested within a swarm of mobile MARS robots, combined with wireless energy transfer system WETS-3.

Experimental verification of a mathematical model of a computer effusion decreasing discharge pressure gas density analyzer

2020 ◽  
pp. 57-63
Author(s):  
Stanislav Yu. Zhigulin ◽  
Leonid V. Iliasov
Keyword(s):  
Mathematical Model ◽  
Model Test ◽  
Experimental Verification ◽  
Experimental Studies ◽  
Calculated Data ◽  
Effect Of Temperature ◽  
Experimental Setup ◽  
Gas Density ◽  
Discharge Pressure ◽  
The Mathematical Model

The article presents the results of checking mathematical model of the created decreasing pressure effusion computer gas density analyzer. Operating principle of a decreasing pressure effusion gas density analyzers is based on measuring the outflow time of the analyzed gas certain volume through a microdiaphragm. A generalized scheme of such analyzers and their operation are described in article. Initial equations of the mathematical model, the assumptions and the results of the development of the mathematical model are presented. The created experimental setup for testing the developed mathematical model and its operation also are described. The mathematical model was tested in the course of numerous experiments on this facility for a number of gases. Studies have also been performed to assess the effect of temperature on the measurement result. The results of the mathematical model test are presented in the article. The results of experimental studies were compared with the calculated data obtained on the basis of a mathematical model. As a result, the error of the mathematical model of the decreasing pressure effusion gas density analyzers was determined and conclusions were made about its adequacy and possible further use for designing and calculating decreasing pressure effusion gas density analyzers.

scholarly journals System identification analysis for an air compressor system and enhancement proposal by sensors based in nanostructures

2019 ◽  
Vol 95 ◽  
pp. 02007
Author(s):  
Jesus A. Calderón ◽  
Cesar J. Valdivia ◽  
Roland Mas ◽  
Luis Chirinos ◽  
Enrique Barrantes ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Energy Transfer ◽  
System Identification ◽  
Mechanical System ◽  
Air Flow ◽  
Pressure Level ◽  
Air Pressure ◽  
Air Compressor ◽  
Identification Analysis ◽  
The Mathematical Model

An Air Compressor System is an equipment (mechanical system) which can transmit energy due to increase air pressure level of air flow that through it. This energy can be used in many applications, such as in drills for mining, adding air to tires on vehicles, spraying crops, etc. Therefore, it is necessary to know the mathematical model of an Air Compressor System to study all the thermodynamical variables: “Temperature, Pressure, Air Flow” which let to get a formalized explanation of the energy transfer through this equipment. Furthermore it is described that Air Compressor System can be enhanced while it uses sensors/actuators based in nanostructures.

scholarly journals Development and research of the rotating lever object as a dynamic model of a cycle mechanism

2018 ◽  
Vol 224 ◽  
pp. 02078 ◽  
Author(s):  
Viktor Telegin ◽  
Alexander Kozlov ◽  
Tatyana Shumilova
Keyword(s):  
Mathematical Model ◽  
Sharp Increase ◽  
High Speed ◽  
Quantitative Estimation ◽  
Automatic Machine ◽  
Dynamic Processes ◽  
Common Elements ◽  
Positioning Accuracy ◽  
Concentrated Masses ◽  
The Mathematical Model

The operation of high-speed automatic machine mechanisms causes oscillating (dynamic) processes because of the elastic deformation of their elements. This results in a sharp increase in loads in the mechanism links and a decrease in their positioning accuracy. The quantitative estimation of dynamic processes is performed on the basis of modeling the mechanisms by systems of concentrated masses connected by elastic-dissipative and kinematic bonds. One way to develop such systems and describe them mathematically is the method of representing the mechanism as a set of a limited number of objects, each of which represents either a typical mechanism or its separate part. This article considers the development and research of the mathematical model of the rotating lever as one of the most common elements of cycle mechanisms which also include cam-leverage, crank-and-rod and other mechanisms.

Study on the Turing of Toric Spectacle Lens by Use of Slow Tool Servo Method

2011 ◽  
Vol 52-54 ◽  
pp. 1526-1531 ◽  
Author(s):  
Min Kang ◽  
Xing Sheng Wang ◽  
Yong Yang ◽  
Xu Zheng
Keyword(s):  
Mathematical Model ◽  
Control System ◽  
Numerical Control ◽  
Experimental Setup ◽  
Numerical Control System ◽  
Spectacle Lens ◽  
Slow Tool Servo ◽  
The Mathematical Model

To solve the difficulties in machining toric spectacle lens, the turning method with slow tool servo was discussed. First, the experimental setup was developed, which have X-axis, Z-axis and C-axis, and the movement of the three axes can be simultaneously controlled by numerical control system. Then, the mathematical model of toric was established, and its machining model was analyzed and simulated. Finally, the machining experiments were carried in the experimental setup. The experiments showed that the turning method based on slow tool servo can meet the requirements for machining the toric spectacle lens.

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