Mathematical modeling of magnetic influence of direct current catenary with voltages of 3 and 24 kV on adjacent communication facilities

2021 ◽  
pp. 97-100
Author(s):  
E. S. Mushkov ◽  
◽  
A. N. Marikin ◽  
M. A. Ivanov ◽  
A. V. Agunov ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Dynamic Modeling ◽  
Direct Current ◽  
Matlab Simulink ◽  
Modeling Environment

The paper analyses a magnetic influence of a direct current catenary with voltages of 3 and 24 kV on adjacent communication facilities. The authors have compared the gained results with standards of magnetic interference. The have developed a model of catenary with voltages of 3 and 24 kV in the Matlab Simulink dynamic modeling environment. With the use of the model the authors have determined parameters of all key components that it is necessary to consider at analysis of magnetic compatibility of the direct current catenary with adjacent communication facilities.

Dynamic Modeling of a New Version of Cylindrical Planetary Gear Used for a Robotic Arm

2014 ◽  
Vol 511-512 ◽  
pp. 683-686
Author(s):  
Lucia Pascale ◽  
Paul Ciprian Patic
Keyword(s):  
Mechanical Properties ◽  
Dynamic Response ◽  
Dynamic Modeling ◽  
Equations Of Motion ◽  
Planetary Gear ◽  
Robotic Arm ◽  
Matlab Simulink ◽  
New Variant ◽  
Planetary Mechanism

This paper presents the dynamic modeling of a new variant of helical planetary gear proposed by the authors, generated by the Vaucanson`s planetary mechanism. This model can be apply successfully helping a robotic arm in motion. It is considered that the gear made connects between a motor and a pump, whose mechanical properties are known. Using Matlab-Simulink is setting the equations of motion and dynamic response, both in premise neglect friction and the premise of considering friction.

Mathematical Modeling of a Two Spool Flow Control Servovalve Using a Pressure Control Pilot1

2002 ◽  
Vol 124 (3) ◽  
pp. 420-427 ◽  
Author(s):  
Randall T. Anderson ◽  
Perry Y. Li
Keyword(s):  
Mathematical Modeling ◽  
Flow Control ◽  
Dynamic Model ◽  
Nonlinear Dynamic ◽  
Pressure Control ◽  
Dynamic Effects ◽  
Nonlinear Dynamic Model ◽  
Two Stage ◽  
Matlab Simulink ◽  
Proposed Model

A nonlinear dynamic model for an unconventional, commercially available electrohydraulic flow control servovalve is presented. The two stage valve differs from the conventional servovalve design in that: it uses a pressure control pilot stage; the boost stage uses two spools, instead of a single spool, to meter flow into and out of the valve separately; and it does not require a feedback wire and ball. Consequently, the valve is significantly less expensive. The proposed model captures the nonlinear and dynamic effects. The model has been coded in Matlab/Simulink and experimentally validated.

Dynamic Modeling and Analysis of Tank Vehicle under Braking Situation

2013 ◽  
Vol 694-697 ◽  
pp. 176-180
Author(s):  
Ying Wan ◽  
Li Mai ◽  
Zhi Gen Nie
Keyword(s):  
Steady State ◽  
Dynamic Modeling ◽  
Transient State ◽  
Equivalent Model ◽  
Vehicle Model ◽  
Matlab Simulink ◽  
Modeling And Analysis ◽  
Braking Performance ◽  
Pitch Motion ◽  
Vehicle System

Considering the instability of the direction dynamics of tank vehicle system under braking maneuver, the longitudinal equivalent model of liquid was formulated with consideration of both the steady-state and the transient state dynamics of the liquid. The Matlab/simulink program of the liquid was built and was combined with the vehicle model in Trucksim software to simulate and analyze the motion of the liquid cargo centroid and its dynamical effects on the vehicle under braking maneuver. It is observed that the liquid cargo slosh motion in tank vehicles has significant influences on braking performance, pitch motion and perpendicular motion of the vehicle. The results of this paper have significant help for studies on dynamics of vehicle tankers under braking maneuver and ensurement of braking stability and security.

scholarly journals A Logic-Based Dynamic Modeling Approach to Explicate the Evolution of the Central Dogma of Molecular Biology

2017 ◽  
Author(s):  
Mohieddin Jafari ◽  
Naser Ansari-Pour ◽  
Sadegh Azimzadeh ◽  
Mehdi Mirzaie
Keyword(s):  
Mathematical Modeling ◽  
Molecular Biology ◽  
Dynamic Modeling ◽  
Information Flow ◽  
Boolean Network ◽  
Conceptual Models ◽  
Central Dogma ◽  
Dynamic Framework ◽  
Modeling Approach ◽  
Biological Concepts

AbstractIt is nearly half a century past the age of the introduction of the Central Dogma (CD) of molecular biology. This biological axiom has been developed and currently appears to be all the more complex. In this study, we modified CD by adding further species to the CD information flow and mathematically expressed CD within a dynamic framework by using Boolean network based on its present-day and 1965 editions. We show that the enhancement of the Dogma not only now entails a higher level of complexity, but it also shows a higher level of robustness, thus far more consistent with the nature of biological systems. Using this mathematical modeling approach, we put forward a logic-based expression of our conceptual view of molecular biology. Finally, we show that such biological concepts can be converted into dynamic mathematical models using a logic-based approach and thus may be useful as a framework for improving static conceptual models in biology.

scholarly journals Mathematical modeling of a strain gauge measurement system in MATLAB SIMULINK program

2020 ◽  
Vol 6 (2) ◽  
pp. 85-93
Author(s):  
Timur A. Raianov
Keyword(s):  
Mathematical Modeling ◽  
Measurement System ◽  
Strain Gauge ◽  
System Analysis ◽  
Force Measurement ◽  
Operating Conditions ◽  
Matlab Simulink ◽  
Software Model ◽  
Output Characteristics ◽  
Gauge Measurement

Background: In recent years, modern strain gauge systems for measuring, which are used in automobile, railway, aviation, and ship transport, as well as in the pulp, paper, and metallurgical industries, have become extremely popular. These metrological systems provide accurate measurement in difficult operating conditions. The most popular among sensors are strain gauges, they are increasingly used in various areas of marine operations and legal proceedings. They are the optimal solution in the field of torque measurement. Aim: The program creates a model of a strain gauge measurement system. Analysis of power output characteristics. Methods: The article describes the construction of a mathematical model of the strain gauge measurement system. The MATLAB SIMULINK library was used for simulation. The work is based on mathematical modeling and is aimed at creating a computer-based strain gauge model. The output characteristics are analyzed. The accuracy of the software model measurement was verified by checking the convergence of the actual and measured values. Results: A software model of the strain gauge force measurement system was created to create a real computer strain gauge measurement system. Output characteristics are obtained. Conclusions: A software model of the strain gauge measurement system is proposed; The output characteristics were studied and the measurement accuracy was checked.

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