The system of automatic control of glow discharge electron gun current and it's computer simulation

2002 ◽  
Author(s):  
S.V. Denbnovetsky ◽  
V.I. Melnyk ◽  
I.V. Melnyk ◽  
B.A. Tugay
Keyword(s):  
Computer Simulation ◽  
Glow Discharge ◽  
Automatic Control ◽  
Electron Gun

Automatic Control of Underway Replenishment Maneuvers in a Random Sea

1978 ◽  
Vol 22 (01) ◽  
pp. 20-28
Author(s):  
Reidar Alvestad
Keyword(s):  
Computer Simulation ◽  
Automatic Control ◽  
Collision Avoidance ◽  
Nonlinear Interaction ◽  
Interaction Forces ◽  
Random Seas ◽  
Close Proximity ◽  
Controller Performance ◽  
Hybrid Computer ◽  
Avoidance Problem

This paper describes a hybrid computer simulation of two ships performing replenishment operations in random seas. Such operations present collision hazards due to the nonlinear interaction forces and moments which result from close proximity maneuvering while underway. Maneuvers are simulated to demonstrate automatic controller performance during station-keeping, station-changing, and the approach and breakaway phases of typical underway replenishment (UNREP) operations. Results indicate that automatic control should be considered as a possible solution to the UNREP collision avoidance problem.

scholarly journals Glow‐discharge‐created electron beams: Cathode materials, electron gun designs, and technological applications

1984 ◽  
Vol 56 (3) ◽  
pp. 790-797 ◽  
Author(s):  
J. J. Rocca ◽  
J. D. Meyer ◽  
M. R. Farrell ◽  
G. J. Collins
Keyword(s):  
Glow Discharge ◽  
Cathode Materials ◽  
Electron Beams ◽  
Electron Gun

Application of glow discharge electron gun to surface modification

Vacuum ◽  
1990 ◽  
Vol 41 (7-9) ◽  
pp. 2177-2180 ◽  
Author(s):  
J. Felba ◽  
K. Friedel ◽  
K. Przybecki
Keyword(s):  
Surface Modification ◽  
Glow Discharge ◽  
Electron Gun

Computer simulation of gas transport in a magnetically stabilized glow discharge

1984 ◽  
Vol 55 (3) ◽  
pp. 708-713 ◽  
Author(s):  
D. M. Antoniuk ◽  
C. E. Capjack ◽  
H. J. J. Seguin
Keyword(s):  
Computer Simulation ◽  
Glow Discharge ◽  
Gas Transport

scholarly journals Synthesis and modeling of the multidimensional technological object control system on the state regulator basis

Vestnik IGEU ◽  
2020 ◽  
pp. 57-64
Author(s):  
A.N. Labutin ◽  
Yu.N. Zagarinskaya ◽  
V.Yu. Nevinitsyn ◽  
G.V. Volkova ◽  
V.A. Zaitsev
Keyword(s):  
Computer Simulation ◽  
Control System ◽  
Automatic Control ◽  
Control Systems ◽  
State Vector ◽  
Chemical Reactor ◽  
The State ◽  
Static Error ◽  
Integral Component ◽  
State Regulator

The problem of structural-parametric synthesis of automatic control systems (ACS) of technological objects is deter-mined by the multi-dimensionality, multi-connectedness and nonlinearity of their mathematical models. Despite the indicated properties of such objects, traditional linear systems based on PID-algorithms are still used for process control. Since the synthesis of linear systems using input-output models does not take into account the multi-dimensionality and mutual influence of state coordinates, such systems increase the influence of parametric and signal perturbations on the quality of control processes. The increasing requirements for the quality and efficiency of technological processes control made it expedient to apply the control principle by the state vector based on the use of uninertial state regulators or combined state regulators including flexible feedback on the derivative state coordinates or state coordinate integrals. The research uses methods of system analysis of technological processes as control objects, methods of automatic control theory, methods of control systems synthesis on the state regulators basis, meth-ods of computer simulation. The linearized mathematical model of liquid-phase chemical reactor in the state space has been obtained. It has been established that the investigated object has the property of free movement stability and it is fully controlled in the state space. The problem of synthesis of a single-channel concentration vector control system in a chemical reactor using state regulator has been solved. The parameters of state regulator settings have been determined using the method of modal control. The efficiency of the automatic control system on the basis of the state regulator with an integral component has been shown using the method of computer simulation of the ‘nonlinear object – linear control subsystem’ complex. It has been demonstrated that the absence of an integral component in the control algorithm structure leads to a great static error of regulation. To eliminate the static error of control and ensure the robustness of the control system, it is recommended to introduce an integral component into the structure of state controller. This ensures the efficiency of the control system both for the case of complete measurement of the state vector and for the case of measurement of the output controlled variable only.

Investigation of the throughput of the dosing device gas leak for gas discharge electron gun

2012 ◽  
Vol 16 (5) ◽  
pp. 25-30
Author(s):  
I.V. Mel'nik ◽  
S.B. Tugaj
Keyword(s):  
Experimental Data ◽  
Mathematical Model ◽  
Glow Discharge ◽  
High Voltage ◽  
Beam Current ◽  
Electron Gun ◽  
Technological Equipment ◽  
Gas Leak ◽  
Electron Guns ◽  
Empirical Coefficients

Model of capacity of valve with conic rod, which is used for control of beam current of high voltage glow discharge electron guns, is considered. Because of complicity of valve details geometry, mathematical model of dozed item is improved by suitable choosing of empirical coefficients and its approximation. On the base of modeling and experimental data analyzing of dependence of valve exploitation characteristics from geometry parameters of dozed item is provided. Obtained results can be used for simulation of stability of operation of high voltage glow discharge electron guns inconsisting of technological equipment

Computer simulation and parameter optimization of phase-locked loops (PLL)

SIMULATION ◽  
1971 ◽  
Vol 16 (2) ◽  
pp. 77-83
Author(s):  
Fred Ricci
Keyword(s):  
Mathematical Model ◽  
Computer Simulation ◽  
Automatic Control ◽  
Parameter Optimization ◽  
Digital Computer ◽  
Random Noise ◽  
Phase Locked Loops ◽  
Simulation Techniques ◽  
Performance Results ◽  
Computer Simulation Techniques

The automatic control and simulation of phased- locked loops (PLL) is treated with particular em phasis on the use of analog and digital computer simulation techniques. The object is to obtain an adequate mathematical model for the PLL and then to use this model to optimize parameters and investi gate pull-in performance. Results are presented for the second-order loop, with ramp, step, random noise, and sinusoidal inputs. The significant result is that an optimization of the PLL loop parameters is obtained using computer techniques.

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