Experimental Study of the Working Process in a Pilot Sample of an Axial Pump with Three-Row Multiplane Flow Paths

The shortage of oil resources and aggravation of environmental pollution drive the whole world look for new alternative fuel for vehicles. By virtue of the renewability and burning cleanability, ethanol has become one of the research priorities for alternative fuel for vehicles at home and abroad. Based on the GT-Power software, a model of the internal combustion engine was established, the working process of the engine using ethanol gasoline as the fuel was simulated, and the experiment platform was established to verify the validity of the simulation model.

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Development of a methodology for calculating the working process of a small-size two-stroke internal combustion engine

VESTNIK of the Samara State Aerospace University ◽

10.18287/2541-7533-2021-20-3-97-109 ◽

2021 ◽

Vol 20 (3) ◽

pp. 97-109

Author(s):

V. V. Biryuk ◽

A. A. Gorshkalev ◽

M. O. Zakharov ◽

V. L. Larin

Keyword(s):

Experimental Study ◽

Internal Combustion Engine ◽

Internal Combustion Engines ◽

Combustion Engine ◽

Experimental Studies ◽

Internal Combustion ◽

Maximum Speed ◽

Combustion Engines ◽

Working Process ◽

Power Characteristics

On the basis of the available theoretical calculations, methods for calculating the working process and power characteristics of internal combustion engines and the experimental studies carried out, a method for calculating the working process for small-sized two-stroke internal combustion engines was developed and tested. In the course of this work, the following results were obtained: the parameters of the working process and power characteristics of a small two-stroke internal combustion engine; the parameters obtained by calculation during the study of the Evolution 20GX2 engine were compared with the results of an experimental study. According to the results of the comparison, deviations in the values of the parameters of the engine under study from the results of the experimental study at the maximum power and maximum speed modes were identified.

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Modeling and Experimental Study on Dynamic Characteristics of Dual-Mass Flywheel Torsional Damper

Shock and Vibration ◽

10.1155/2019/5808279 ◽

2019 ◽

Vol 2019 ◽

pp. 1-13 ◽

Cited By ~ 1

Author(s):

Long Chen ◽

Wen-ku Shi ◽

Zhi-yong Chen

Keyword(s):

Experimental Study ◽

Dynamic Condition ◽

Excitation Amplitude ◽

Model Verification ◽

Test Method ◽

Torsional Stiffness ◽

Frictional Torque ◽

Working Process ◽

Working Principle ◽

And Performance

Theoretical modeling and experimental research are carried out on the dynamic torsional characteristics of a dual-mass flywheel (DMF) in this paper. Firstly, the structure and working principle of the DMF are analyzed. Secondly, the arc spring is analyzed by the discrete element method. For the different frictional torques in the working process, the linear fitting and equivalent energy methods are used to model the frictional torque under the dynamic condition of the arc spring. The fractional derivative model is used to model the viscous damping of DMF. Then, the parameter identification and model verification are carried out on the model, and the model error is analyzed. Finally, an experimental study on the dynamic torsional characteristics of DMF is carried out. The results demonstrate that the torsional stiffness of the DMF varies with the excitation amplitude and frequency. This modeling and test method can be used for structural design and performance prediction analysis of DMF.

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Theoretical Analysis and Experimental Research on Cluster Bomb Warhead Built Pressure Device Based on Mechanical Mechanics

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.644.260 ◽

2013 ◽

Vol 644 ◽

pp. 260-264

Author(s):

Han Zhang

Keyword(s):

Experimental Study ◽

Rocket Engine ◽

Pressure Rise ◽

Calculation Model ◽

Pressure Chamber ◽

Pressure Curve ◽

Pressure Balance ◽

Working Process ◽

Cluster Bomb ◽

Working Section

This paper according to a certain type of cluster bomb warhead built pressure chamber technical index requirements, design process a set of gas pressure device built principle prototype, and experimental study was carried out. Based on gas build pressure device working process research has determined its three working section: pressure rise section, pressure balance segment and pressure drop section, and then according to the rocket engine interior ballistic principle for each work period respectively calculated, get gas build pressure device and build pressure chamber of the interior ballistic pressure curve, and finally use of principle prototype experimental study. The theoretical calculation curve and test the measured curve have very good consistency; prove this paper established pressure calculation model is reasonable and credible for future related problems research provides a basis.

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Numerical and experimental study of using axial pump as turbine in Pico hydropower plants

Renewable Energy ◽

10.1016/j.renene.2012.11.016 ◽

2013 ◽

Vol 53 ◽

pp. 258-264 ◽

Cited By ~ 34

Author(s):

A. Bozorgi ◽

E. Javidpour ◽

A. Riasi ◽

A. Nourbakhsh

Keyword(s):

Experimental Study ◽

Axial Pump ◽

Hydropower Plants

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Virtual Laboratory in Chemistry - Experimental Study of Understanding, Reproduction and Application of Acquired Knowledge of Subject's Chemical Content

Organizacija ◽

10.2478/v10051-012-0011-7 ◽

2012 ◽

Vol 45 (3) ◽

pp. 108-116 ◽

Cited By ~ 9

Author(s):

Nataša Herga ◽

Dejan Dinevski

Keyword(s):

Experimental Study ◽

Point Of View ◽

Virtual Laboratory ◽

Traditional Teaching ◽

Active Involvement ◽

Chemical Content ◽

Visualization Tools ◽

Pilot Sample ◽

Science Classes ◽

Better Than

Virtual Laboratory in Chemistry - Experimental Study of Understanding, Reproduction and Application of Acquired Knowledge of Subject's Chemical ContentTraditional teaching does not often allow very active involvement of pupils in class. In chemistry and natural sciences in general experimental and laboratory work is one of the most effective methods for acquiring knowledge. Experimental work can also be exercised using virtual world. Virtual laboratory offers some important advantages. Understanding chemistry involves the ability of cognitive comprehension on three levels: the macroscopic level, the symbolic level and the level of particles where the virtual laboratory can be an effective tool. On this basis a didactic experiment was performed in order to verify the effectiveness of virtual laboratory from pupils' knowledge point of view. The experiment involved seventh grade pupils (N = 38). Furthermore, we tried to answer the question whether the learning results of pupils, according to the experimental design of classes using a virtual laboratory, are better than results gained through teaching classical science classes without visualization tools. The research of the didactic experiment carried out on a relatively small, pilot sample of pupils has shown that acquiring knowledge is more effective when using the virtual laboratory instead of classical teaching (in the case when classical approach does not include visualization elements crucial for learning and understanding chemistry).

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