The Effect of Icing on the Output Parameters of the Airflow-Angle Sensor in Case of Failure of the Electric Heating System

At present, with the intensive operation of aircrafts in extremely harsh air conditions, their all-weather use, the work related to improving the flight safety is especially relevant. One of the directions of work in this topic is the study of the types of parametric failures of onboard equipment associated with the influence of the external environment in order to assess their impact on interacting systems and develop recommendations for identifying and countering detected failures. The presented paper considers the results of a full-scale experiment to determine the possibility of operation of the aerodynamic angle sensor in artificially formed icing conditions in case of failure of its electric heating system, as well as a description and results of subsequent modeling of the sensor icing process, and an assessment of its effect on the accuracy characteristics of the sensor output signal. The statement of the research problem is formulated as follows: it is necessary to ensure the testing of the sensor and the subsequent processing of the results obtained in order to form a generalized mathematical model of the sensor icing process, as well as to solve the problem of introducing additional errors into the sensor signals, which makes it possible to study the behavior of air signal systems using vane sensors of aerodynamic angles with artificially introduced failures. A full-scale experiment was carried out in an air-cooling tube on the basis of the enterprise JSC "UKBP". Numerical modeling and determination of correction factors were carried out in the software packages Ansys FENSAP ICE and MathCAD. Analysis of the results achieved in the course of modeling confirmed the convergence of the model obtained with the data of real experiments in an air-cooling tube. The data obtained made it possible to confirm the possibility of detecting distorted values for the angle of attack by the parametric quorum control method.

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Full-scale experiment and numerical simulation of prestressed concrete cylinder pipe with broken wires strengthened by prestressed CFRP

Tunnelling and Underground Space Technology ◽

10.1016/j.tust.2021.104021 ◽

2021 ◽

Vol 115 ◽

pp. 104021

Author(s):

Kejie Zhai ◽

Hongyuan Fang ◽

Chengchao Guo ◽

Pengpeng Ni ◽

Hanying Wu ◽

...

Keyword(s):

Numerical Simulation ◽

Prestressed Concrete ◽

Full Scale ◽

Concrete Cylinder ◽

Full Scale Experiment ◽

Scale Experiment ◽

Prestressed Concrete Cylinder Pipe

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Full-Scale Experiment on the Behavior of a Railway Vehicle being Subjected to Lateral Force

Journal of Mechanical Systems for Transportation and Logistics ◽

10.1299/jmtl.3.35 ◽

2010 ◽

Vol 3 (1) ◽

pp. 35-43 ◽

Cited By ~ 11

Author(s):

Yu HIBINO ◽

Takayuki SHIMOMURA ◽

Katsuya TANIFUJI

Keyword(s):

Lateral Force ◽

Full Scale ◽

Railway Vehicle ◽

Full Scale Experiment ◽

Scale Experiment

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Full-Scale Experiment of Longitudinal Ventilation Smoke Control System and Central Smoke Exhaust System in City Underwater Tunnel

Procedia Engineering ◽

10.1016/j.proeng.2013.02.149 ◽

2013 ◽

Vol 52 ◽

pp. 330-335 ◽

Cited By ~ 5

Author(s):

Jia-yun Sun ◽

Zheng Fang ◽

Juan-juan Chen

Keyword(s):

Control System ◽

Exhaust System ◽

Full Scale ◽

Smoke Control ◽

Longitudinal Ventilation ◽

Full Scale Experiment ◽

Underwater Tunnel ◽

Scale Experiment ◽

Smoke Control System

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Ground heat transfer: A numerical simulation of a full-scale experiment

Building and Environment ◽

10.1016/j.buildenv.2005.12.022 ◽

2007 ◽

Vol 42 (3) ◽

pp. 1478-1488 ◽

Cited By ~ 11

Author(s):

S.W. Rees ◽

Z. Zhou ◽

H.R. Thomas

Keyword(s):

Heat Transfer ◽

Numerical Simulation ◽

Full Scale ◽

Full Scale Experiment ◽

Scale Experiment

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Investigations of electrophysical monitoring in a full-scale experiment to clean soil contaminated with oil

E3S Web of Conferences ◽

10.1051/e3sconf/202017704003 ◽

2020 ◽

Vol 177 ◽

pp. 04003

Author(s):

Sergey Prostov ◽

Evgeniy Shabanov

Keyword(s):

High Efficiency ◽

Oil Pollution ◽

Soil Mass ◽

Full Scale ◽

Used Oil ◽

Complex Processes ◽

Full Scale Experiment ◽

Scale Experiment ◽

Processing Zone ◽

Conductive Properties

This article presents the main results of the study of electrophysical processes occurring in the zone of electrical processing during the cleaning of soils from oil pollution. The main conclusions are formulated about the processes occurring in the electric processing zone by changing the relative electrical resistance of the soil, which was measured using microprobe sensors. A comparative analysis of the results of a laboratory experiment on the electrochemical cleaning of contaminated soil in a tank is carried out with the results of a full-scale experiment conducted on a plot of a soil mass in real conditions, but artificially contaminated with oil products (gasoline, used oil. Using single measurements of electrical resistivity by microprobe sensors, the spread of the pollutant in the soil was clarified , the relationship between the physical properties of the array and its electrical wire is established conductive properties. Confirmed high efficiency of this type of control in the study of complex processes occurring in the contaminated ground array.

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