scholarly journals Research on High-Temperature Cooling Flight Test Technology of a Certain Type of Civil Aircraft Generator

2021 ◽  
Vol 2136 (1) ◽  
pp. 012018
Author(s):  
Jingtao Wu ◽  
Jin Cai ◽  
Ming Ma
Keyword(s):  
Data Analysis ◽  
High Temperature ◽  
Flight Test ◽  
Test Subject ◽  
Flight Tests ◽  
Technical Research ◽  
Technical Preparation ◽  
Test Technology ◽  
Civil Aircraft

Abstract The high-temperature special flight test is one of the important special meteorological flight tests for civil aircraft airworthiness certification flight test, and generator high-temperature cooling flight test is also very important as the key flight test subject of high-temperature special flight test. The purpose of this paper is to summarize and study the airworthiness background, technical research, technical preparation, technical implementation, and data analysis results of a certain type of civil aircraft generator high-temperature cooling flight test, to provide guidance and help for subsequent civil aircraft generator high-temperature cooling flight test.

scholarly journals A Flight Test Method of Flammable Liquid Leakage and Discharge for Certain Aircraft

2018 ◽  
Vol 227 ◽  
pp. 01001
Author(s):  
Jiangtao Song ◽  
Yan Zhao ◽  
Yu Li
Keyword(s):  
Flight Test ◽  
Test Methods ◽  
Test Method ◽  
Test Equipment ◽  
Test Results ◽  
Successful Completion ◽  
Flammable Liquid ◽  
Flight Tests ◽  
Civil Aircraft ◽  
Certification Test

To guarantee the successful completion of airworthiness certification test for a certain type of aircraft, the leakage and discharge compliance criteria of flammable liquid were designed by studying airworthiness requirements and the design characteristic of the civil aircraft, where flammable liquid leakage zones and hazardous zones in which liquids are not allowed to enter were determined. Further the test equipments and the dyeing liquor for replacing flammable fluid were developed, and ground and flight test methods were proposed. Moreover, the above test equipment and methods were applied to flight tests of flammable liquid leakage and discharge for certain civil aircraft. The test results show that the test equipment is stable and reliable, and the flight test method can accurately demonstrate the flammable liquid leakage and discharge.

A Design of a Monitoring Expert System of Flight Parameter

2013 ◽  
Vol 791-793 ◽  
pp. 874-877
Author(s):  
Yan Song Zhang ◽  
Hui Feng Zhang ◽  
Wei Ye ◽  
Chao Jiang Wang ◽  
Zhen Dong Xu
Keyword(s):  
Expert System ◽  
Real Time ◽  
Flight Test ◽  
Information Control ◽  
Digital Information ◽  
Video Information ◽  
Test Technology ◽  
Flight Controls ◽  
Flight Parameters ◽  
Special Circumstances

In order to meet the trend for flight test technology, this paper presents a monitoring expert system of flight parameters based on embedded technology , which can achieve real-time interpretation of flight data air and provide the parameters for the AHRS, engines, flight controls for aircraft crew members as well as the disposal of the special circumstances operating. It can be used for real-time collection and record a variety of digital information, control information and video information transmitting by the missiles and fiber during the fly testing process.

scholarly journals Pengaruh Metode Bercerita Terhadap Kemampuan Mengungkapkan Bahasa Anak Usia 5-6 Tahun di TK Pertiwi 1 Banjarsari

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Gana Kartinika Hadi
Keyword(s):  
Data Analysis ◽  
Experimental Design ◽  
Research Design ◽  
Test Subject ◽  
Language Ability ◽  
T Test ◽  
Quantitative Approach ◽  
Analysis Technique ◽  
Experiment Method ◽  
Experiment Analysis

<p><em>The purpose of this study is to reveal the influence of storytelling method toward the ability of revealed language the of Child Aged 5-6 Years Old at Pertiwi 1 Banjarsari. This research uses quantitative approach by using experiment method; the research design uses Pre-Experimental design (nondesign) which includes pre-test and pos-test. Subject of this research is a child aged 5-6 years old in Pertiwi 1 Banjarsari Kindergarten about 19 students. Data collecting technique through the observation and documentation. Data analysis technique the inferensial statistics by using t data experiment analysis (T-Test). The result of data analysis is acquired value r = 0,68, </em><em> wich are -</em><em>2,450 </em><em> -11,66, thus </em><em>is accepted wich means there is significanct influence between </em><em>Sorytelling Method to child’s revealed language ability.</em><strong><em></em></strong></p>

Data Analysis of Phoenix RLV Demonstrator Flight Test

2005 ◽  
Author(s):  
Ravindra Jategaonkar ◽  
Roland Behr ◽  
Wilhelm Gockel ◽  
Christoph Zorn
Keyword(s):  
Data Analysis ◽  
Flight Test

scholarly journals Method for the Accelerated Testing of the Durability of a Construction Binder using the Arrhenius Approach

2016 ◽  
Vol 24 (1) ◽  
pp. 24-33 ◽  
Author(s):  
Marcela Fridrichová ◽  
Karel Dvořák ◽  
Dominik Gazdič
Keyword(s):  
Compressive Strength ◽  
High Temperature ◽  
Time Budget ◽  
Test Subject ◽  
Fluidised Bed ◽  
Good Correspondence ◽  
Chemical Corrosion ◽  
Chemical Reaction Kinetics ◽  
X Ray

AbstractThe single most reliable indicator of a material’s durability is its performance in long-term tests, which cannot always be carried out due to a limited time budget. The second option is to perform some kind of accelerated durability tests. The aim of the work described in this article was to develop a method for the accelerated durability testing of binders. It was decided that the Arrhenius equation approach and the theory of chemical reaction kinetics would be applied in this case. The degradation process has been simplified to a single quantifiable parameter, which became compressive strength. A model hydraulic binder based on fluidised bed combustion ash (FBC ash) was chosen as the test subject for the development of the method. The model binder and its hydration products were tested by high-temperature X-ray diffraction analysis. The main hydration product of this binder was ettringite. Due to the thermodynamic instability of this mineral, it was possible to verify the proposed method via long term testing. In order to accelerate the chemical reactions in the binder, four combinations of two temperatures (65 and 85°C) and two different relative humidities (14 and 100%) were used. The upper temperature limit was chosen because of the results of the high-temperature x-ray testing of the ettringite’s decomposition. The calculation formulae for the accelerated durability tests were derived on the basis of data regarding the decrease in compressive strength under the conditions imposed by the four above-mentioned combinations. The mineralogical composition of the binder after degradation was also described. The final degradation product was gypsum under dry conditions and monosulphate under wet conditions. The validity of the method and formula was subsequently verified by means of long-term testing. A very good correspondence between the calculated and real values was achieved. The deviation of these values did not exceed 5 %. The designed and verified method does not also consider the influence of other effects, for instance, chemical corrosion or corrosion caused by frost-thaw cycles. However, this method could be a supplementary tool applicable to the study of degradation processes and the estimation of a binder´s durability as well.

scholarly journals Research on Civil Aircraft Flight Test of Power Supply Quality Analysis

2021 ◽  
Vol 2136 (1) ◽  
pp. 012016
Author(s):  
Jingtao Wu ◽  
Pei Wang ◽  
Jin Cai ◽  
Ying Liu
Keyword(s):  
Power Supply ◽  
Flight Test ◽  
Quality Standard ◽  
Test Method ◽  
Quality Analysis ◽  
Quality Test ◽  
Test Characteristic ◽  
Aircraft Flight ◽  
Civil Aircraft ◽  
Test Requirements

Abstract In the process of civil aircraft airworthiness, analyzing power quality is the key to verify whether the power supply system meets the requirements of the clause. This paper makes deep research on the domestic and foreign power supply quality standard files and detailed introduces the characteristics of the power supply quality standard files. Then, comparative and analysis give suggestions which tally with power supply quality test requirements. Finally, define the special power supply quality test method for the practical engineering specifically, and power supply quality test characteristic in civil aircraft flight test, to provide guidance help for the future civil aircraft models.

scholarly journals Sensitivity Analysis and Flight Tests Results for a Vertical Cold Launch Missile System

Aerospace ◽  
2020 ◽  
Vol 7 (12) ◽  
pp. 168
Author(s):  
Robert Głębocki ◽  
Mariusz Jacewicz
Keyword(s):  
Vision System ◽  
Flight Test ◽  
Measurement Unit ◽  
Flight Tests ◽  
Test Range ◽  
Roll Rate ◽  
Six Degree Of Freedom ◽  
Main Engine ◽  
Missile Test ◽  
Missile System

In vertical cold launch the missile starts without the function of the main engine. Over the launcher, the attitude of the missile is controlled by a set of lateral thrusters. However, a quick turn might be disturbed by various uncertainties. This study discusses the problem of the influences of disturbances and the repeatability of lateral thrusters’ ignition on the pitch maneuver quality. The generic 152.4 mm projectile equipped in small, solid propellant lateral thrusters was used as a test platform. A six degree of freedom mathematical model was developed to execute the Monte-Carlo simulations of the launch phase and to prepare the flight test campaign. The parametric analysis was performed to investigate the influence of system uncertainties on quick turn repeatability. A series of ground laboratory trials was accomplished. Thirteen flight tests were completed on the missile test range. The flight parameters were measured using an onboard inertial measurement unit and a ground vision system. It was experimentally proved that the cold vertical launch maneuver could be realized properly with at least two lateral motors. It was found that the initial roll rate of the projectile and the lateral thrusters ‘igniters’ uncertainties could affect the pitch angle achieved and must be minimized to reduce the projectile dispersion.

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