Experimental Verification of the Mathematical Model for Thin-Walled Cylindrical Shell Vibrations on Exposure to Uniform Temperature, Based on Variational Formulation

2021 ◽  
pp. 196-203
Author(s):  
Evgeniy O. Sysoev ◽  
Artem Y. Dobryshkin ◽  
Oleg E. Sysoev
Keyword(s):  
Mathematical Model ◽  
Cylindrical Shell ◽  
Experimental Verification ◽  
Variational Formulation ◽  
Uniform Temperature ◽  
Thin Walled ◽  
The Mathematical Model

Rig Test and Analysis of Dynamic Engagement Process of Wet Clutch

2014 ◽  
Vol 945-949 ◽  
pp. 1461-1464
Author(s):  
Han Yu Jin ◽  
Xiu Sheng Cheng ◽  
Xiu Feng Song
Keyword(s):  
Mathematical Model ◽  
Experimental Verification ◽  
Constant Pressure ◽  
Simulation Analysis ◽  
Test Rig ◽  
Wet Clutch ◽  
Engagement Process ◽  
Working Principle ◽  
The Mathematical Model

The working principle of wet clutch was analyzed and the mathematical model was established for torque deliver. Experimental verification and simulation analysis was carried out for the clutch model in the situation of constant pressure engaging process. An efficiency examination of wet clutch implemented on the test rig and provided theory evidence for pressure precisely control.

Water diffusion in polymer coatings containing water-trapping particles. Part 2. Experimental verification of the mathematical model

2012 ◽  
Vol 75 (3) ◽  
pp. 207-214 ◽  
Author(s):  
Małgorzata Krzak ◽  
Zbisław Tabor ◽  
Paweł Nowak ◽  
Piotr Warszyński ◽  
Anastasis Karatzas ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Experimental Verification ◽  
Polymer Coatings ◽  
Water Diffusion ◽  
Water Trapping ◽  
The Mathematical Model

Behaviour of a Cylindrical Shell Subject to a Static Couple

1965 ◽  
Vol 7 (3) ◽  
pp. 339-347 ◽  
Author(s):  
J. L. Hedges ◽  
B. Mills ◽  
B. N. Cole
Keyword(s):  
Cylindrical Shell ◽  
Experimental Verification ◽  
Load Application ◽  
Characteristic Curves ◽  
Satisfactory Correlation ◽  
Thin Walled ◽  
Theoretical Results

The Rayleigh theory of inextensibility is used to predict the displacement behaviour of a thin-walled cylindrical shell subject to a static couple. The effect of the position of load application is investigated. Characteristic curves are presented for a series of load positions for constant shell dimensions, together with curves showing the effect of different shell sizes. Experimental verification of the theory is provided, tests being performed on a cylinder in which the loads are applied at the ends of a diameter. Satisfactory correlation was found between the experimental and theoretical results.

scholarly journals DETERMINATION OF TRANSFER FUNCTION OF MAGNETIC LEVITATION MODEL AND EXPERIMENTAL VERIFICATION OF OPTICAL SENSOR

2019 ◽  
pp. 148-154
Author(s):  
Erik Prada
Keyword(s):  
Mathematical Model ◽  
Transfer Function ◽  
Experimental Verification ◽  
Optical Sensor ◽  
Magnetic Levitation ◽  
Positioning Systems ◽  
Levitation System ◽  
Magnetic Levitation System ◽  
The Mathematical Model

Urgency of the research. The potential of controlling the position of levitating objects has great application in deposition and in various positioning systems. Magnetic levitation eliminates direct mechanical friction between moving parts. Target setting. The measurement shielding method used is one of the methods of determining the position of a levitating object. By combining positioning and regulating elements, we achieve a feedback control. The use of a given type of measurement has advantages in places where the use of other methods is not appropriate. Actual scientific researches and issues analysis. The problem of magnetic levitation is addressed by several research laboratories with a direct connection to practice. The problem that is currently solved within magnetic levitation is the regulation of the levitating object using various types of regulators. The research objective. Derivation of mathematical model of magnetic levitation and examination of nonlinear system followed by linearization by Taylor series. Experimental determination of characteristics and dependence between object position, voltage and current. The statement of basic materials. The position of the levitating object is determined by the shading of the optical sensor. The light source is a laser light. Conclusions. In this work we defined the mathematical model of the magnetic levitation system and subsequently derived the transfer function of the levitation system and the position sensor. From the experimental verification of the shadow method for the determination of the position of the levitating object and the consequent need for regulation, we found that the dependence of the position of the levitating object on current and voltage on the photodiode is linear in the active region.

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.

The Numerical Simulation and Optimization of Feeding Velocity in Rubber Roller Husker Vibrating Feeder

2014 ◽  
Vol 635-637 ◽  
pp. 233-236 ◽  
Author(s):  
Jing Lan Ruan ◽  
Le Le Jia
Keyword(s):  
Numerical Simulation ◽  
Mathematical Model ◽  
Experimental Verification ◽  
Feeding System ◽  
Optimal Parameters ◽  
Theory Analysis ◽  
Simulation And Optimization ◽  
Rubber Roller ◽  
The Mathematical Model ◽  
Vibrating Feeder

Establish the mathematical model of feeding velocity in Rubber Roller Husker vibrating feeder through analyzing the material movement, and determine the relational expression according to the theory analysis of material movement in the feeder. Analyzing the influence of groove obliquity angle , vibrating direction angle, frequencyand amplitude, which are simulated numerically by using the MATLAB software, and optimizing the material theoretical speed are the main objective. The optimal parameters of transmission and the experimental verification can provide more reference for the design of the Rubber Roller Husker vibrating feeding system.

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