INNOVATIVE DESIGN SOLUTION FOR QUICK-HEATING ACTIVE THERMAL TARGET FOR NIGHT SHOOTING

2020 ◽  
Vol 151 (3) ◽  
pp. 21-29
Author(s):  
Waldemar Świderski ◽  
Paweł Hłosta ◽  
Grzegorz Polak ◽  
Dariusz Tymiński
Keyword(s):  
Control System ◽  
Steady State ◽  
Design Solution ◽  
Innovative Design ◽  
Voltage Supply ◽  
Innovative Solution ◽  
The Times

The paper presents a concept of a heated active thermal target designed for training and shooting with thermal sights at night conditions. The innovative solution contains a control system and a target with specially matched parameters providing several times greater power at the beginning of heating than the power needed to maintain a demanded difference of temperatures in the steady state. After reaching the required temperature, the control system does not give full voltage to the target. The times of voltage supply and its switching off are so selected that the temperature of the target corresponds to the required value. The time needed to obtain the required temperature in the proposed solution is several times shorter than in the currently used configurations. This allows the heater to be activated at the same time as the blade lift is activated. The solution eliminates disadvantages of heated targets used for shooting up to now.

Innovative Solution of an Integrated Motor Pump Assembly

2017 ◽  
Author(s):  
Wieslaw Fiebig ◽  
Piotr Cependa ◽  
Paulina Jedraszczyk ◽  
Hubert Kuczwara
Keyword(s):  
Electric Motor ◽  
Permanent Magnets ◽  
Design Solution ◽  
Experimental Investigations ◽  
Inlet Channel ◽  
Vane Pump ◽  
Cfd Simulations ◽  
Innovative Design ◽  
Innovative Solution ◽  
Pump Assembly

In this paper an innovative design solution of a vane pump integrated with an electric motor is presented. In the proposed solution the double vane pump is embedded into the rotor of electric permanent magnets motor (BLDC). CFD simulations of the flow have been carried out to analyze the flow in the pump crossover areas and to avoid the cavitation phenomena at the inlet channel. Results of experimental investigations of the motor pump assembly prototype are presented.

Research on Power Regulation Schedule Control System for Turboprop Engine

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Tianqian Xia ◽  
Xianghua Huang
Keyword(s):  
Control System ◽  
Steady State ◽  
Fuel Consumption ◽  
Reference Model ◽  
Sliding Mode ◽  
Speed Control ◽  
Variable Speed ◽  
Turboprop Engine ◽  
Speed Control System ◽  
Variable Speed Control

Abstract A method of variable speed control system for turboprop engine is presented in this paper. Firstly, the steady operation state of turboprop engine is analyzed, and the operating line is figured out in the steady state characteristic diagram, which is the design basis of Engine Thrust Management System (ETMS). Secondly, the reference model sliding mode multivariable control is used to design the control law to follow the speed instructions given by ETMS. Finally, the optimization of the minimum fuel consumption operating curve is realized, and the control system designed is applied to a numerical model of a turboprop engine. The simulation results show that compared with the constant speed control system, the variable speed control system can reduce the specific fuel consumption by 2.37 % on average and 3.1 % in steady state conditions. Furthermore, the method can enable the pilot to manipulate the turboprop aircraft by using only one throttle lever, which can greatly reduce the pilot operation burden.

Machine Control System of Steady State Superconducting Tokamak-1

2016 ◽  
Vol 112 ◽  
pp. 731-734 ◽  
Author(s):  
Harish Masand ◽  
Aveg Kumar ◽  
M. Bhandarkar ◽  
K. Mahajan ◽  
H. Gulati ◽  
...  
Keyword(s):  
Control System ◽  
Steady State ◽  
Machine Control ◽  
Superconducting Tokamak

scholarly journals Desain dan analisis pengaruh parameter PI dan variasi kecepatan pada respon sistem kontrol arah hadap prototype kendaraan listrik

2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Afif Caesar Distara ◽  
Fatkhur Rohman
Keyword(s):  
Control System ◽  
Steady State ◽  
Electric Vehicles ◽  
Rise Time ◽  
Small Error ◽  
Settling Time ◽  
System Stability ◽  
Prototype System ◽  
Stability Parameters ◽  
The Stability

Electric vehicles are alternative vehicles that carry energy efficient. At this time the dominant vehicle uses ordinary wheels so that it will become an obstacle in the maneuver function that requires movement in various directions. With mechanum wheels the vehicle can move in various directions by adjusting the direction of rotation of each wheel. The problem is choosing the right control system for the control system needed by the vehicle. The purpose of this study is to determine and analyze the effect of variations in the value of PI (Proportional Integral) and speed of the vehicle to the stability response of the system to control the direction of prototype electric vehicles. This study method is an experiment that is by giving a treatment, then evaluating the effects caused by the research object. The results of this study can be concluded that the variation of PI constant values and speed variations have an effect on the stability parameters of the system, namely rise time, settling time, overshot, and steady state error. To get the best system stability response results can use the constant value PI Kp = 2; and Ki = 17; where the stability response of the system for direction control at each speed condition has a fairly good value with a fast rise time, fast settling time, small overshot and a small error steady state compared to other PI constant values in this study.Keywords: mechanum wheel, PI control, direction, prototype, system stability

Adaptation in the respiratory control system

2003 ◽  
Vol 81 (8) ◽  
pp. 765-773 ◽  
Author(s):  
James Duffin ◽  
Safraaz Mahamed
Keyword(s):  
Experimental Data ◽  
Control System ◽  
Steady State ◽  
Graphical Model ◽  
Respiratory Control ◽  
Ventilatory Responses ◽  
System A ◽  
Hypoxia Adaptation ◽  
Peripheral Chemoreflex

Exposure to hypoxia, whether for short or prolonged periods or for repeated episodes, produces alterations in the ventilatory responses. This review presents evidence that these adaptations are likely to be mediated by adaptations in the respiratory chemoreflexes, particularly the peripheral chemoreflex, and proposes models of respiratory control explaining the observed changes in ventilation. After a brief introduction to the respiratory control system, a graphical model is developed that illustrates the operation of the system in the steady state, which will be used later. Next, the adaptations in ventilatory responses to hypoxia that have been observed are described, and methods of measuring the alterations in the chemoreflexes that might account for them are discussed. Finally, experimental data supporting the view that changes in the activity of the peripheral chemoreflex can account for the ventilatory adaptations to hypoxia are presented and incorporated into models of chemoreflex behaviour during exposures to hypoxia of various durations.Key words: respiration, chemoreflexes, hypoxia, adaptation, models.

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