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Design Calibration And Application Of A Sensor For Measuring Time Dependent Angle Of Attack Of Helicopter Blades
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Book Synopsis Design, Calibration, and Application of a Sensor for Measuring Time Dependent Angle of Attack of Helicopter Blades by : Weiyuan Henry Liu
Download or read book Design, Calibration, and Application of a Sensor for Measuring Time Dependent Angle of Attack of Helicopter Blades written by Weiyuan Henry Liu and published by . This book was released on 1978 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sensor for Measuring Instantaneous Angle of Attack of Helicopter Blades by : P. S. Barna
Download or read book Sensor for Measuring Instantaneous Angle of Attack of Helicopter Blades written by P. S. Barna and published by . This book was released on 1980 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book NASA SP. written by and published by . This book was released on 1990 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sensor for Measuring Instantaneous Angle of Attack of Helicopter Blades by : P. S. Barna
Download or read book Sensor for Measuring Instantaneous Angle of Attack of Helicopter Blades written by P. S. Barna and published by . This book was released on 1980 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sensor for Measuring Instantaneous Angle of Attack of Helicopter Blades by : P. S. Barna
Download or read book Sensor for Measuring Instantaneous Angle of Attack of Helicopter Blades written by P. S. Barna and published by . This book was released on 1980 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1991 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1979 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Contractor Report written by and published by . This book was released on 1980 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calibration of a Flow Angularity Probe with a Real-time Pressure Sensor by : Brock Joseph Anthony Pleiman
Download or read book Calibration of a Flow Angularity Probe with a Real-time Pressure Sensor written by Brock Joseph Anthony Pleiman and published by . This book was released on 2019 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: In airframe propulsion integration, the pressure recovered at the beginning of the inlet in comparison to the end of the inlet is a critical design point. Studies conducted by the Air Force Research Lab show that a loss in recovery pressure directly and adversely relates to the change in range of the aircraft. For that reason, accuracy of pressure instrumentation at the aerodynamic interface plane, or the interface between the end of the inlet and the beginning of the engine, is critical. Historically, data from experimental tests at the aerodynamic interface plane have mostly been reduced into time-averaged and time-independent pressures; however, current engine manufacturers are increasing focus on the angularity of the flow entering the engine. Currently airframe propulsion integration test programs require multiple runs to test each configuration with different sensor types to measure the time-dependent and time-independent pressure values, as well as, the angularity of the flow. Testing the same configuration multiple times can quickly become expensive in larger, production tunnels so a new probe design capable of capturing the time-independent and time-dependent pressures, in conjunction with the angularity of the flow has been designed.In order to determine whether the design of the probe is adequate for capturing all three variables similar to historical results shown by Paul[1], Kulite[2] and Arrend[3], a calibration must first be completed followed by the collection of additional data points which provide calibration validation. In order to calibrate the new probe, previously calibrated instrumentation will be used as a 0́−truth0́+ model. To ensure that the measurement uncertainty due to test set-up is comparable, the technique and test approach will be modeled after the calibration of a series of 5-hole probes calibrated at Wright Patterson Air Force Base.This thesis will document the experimental set-up, test approach, data acquired, data reduction and measurement uncertainty for a series of Mach numbers to determine if a 5-hole probe with a time-dependent pressure sensor in the center port is capable of accurately measuring steady state total and static pressure, Mach number, angle of attack and yaw, and dynamic content simultaneously.After running the calibration, it was found that the steady-state total and static pressure, angle of attack and yaw uncertainty are similar to the results previously published by Gallington[4], Paul[1] and Semmelmayer[5] if the Mach number is greater than Mach 0.2. The amplitude of nearly all of the frequencies detected in the experiment increased with angle of attack, angle of yaw and Mach number therefore leading to an increased RMS about the average reading of the sensor; however, a relationship between the RMS and angle of attack, angle of yaw and Mach number was found. This relationship showed that calibrating the RMS of the probe at an angle of attack to what the RMS of the flow would have been if the probe were axially aligned may be possible. Although the initial results of the RMS relationship are promising, the final results lack closure and require additional testing. In conclusion the probe is capable of accurately measuring total and static pressure, Mach, angle of attack and yaw while the axially aligned fluctuations require more research to validate the proposed equation.
Book Synopsis Wind-tunnel Calibration and Requirements for In-flight Use of Fixed Hemispherical Head Angle-of-attack and Angle of Sideslip Sensors by : Earl J. Montoya
Download or read book Wind-tunnel Calibration and Requirements for In-flight Use of Fixed Hemispherical Head Angle-of-attack and Angle of Sideslip Sensors written by Earl J. Montoya and published by . This book was released on 1973 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind-tunnel tests were conducted with three different fixed pressure-measuring hemispherical head sensor configurations which were strut-mounted on a nose boom. The tests were performed at free-stream Mach numbers from 0.2 to 3.6. The boom-angle-of-attack range was -6 to 15 deg, and the angle-of-sideslip range was -6 to 6 deg. The test Reynolds numbers were from 3.28 million to 65.6 million per meter. The results were used to obtain angle-of-attack and angle-of-sideslip calibration curves for the configurations. Signal outputs from the hemispherical head sensor had to be specially processed to obtain accurate real-time angle-of-attack and angle-of-sideslip measurements for pilot displays or aircraft systems. Use of the fixed sensors in flight showed them to be rugged and reliable and suitable for use in a high temperature environment.
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1978 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Dissertation Index by :
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1984 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Electrolytic Tilt Sensors for Measuring Model Angle of Attack in Wind Tunnel Tests by : Douglas T. Wong
Download or read book Evaluation of Electrolytic Tilt Sensors for Measuring Model Angle of Attack in Wind Tunnel Tests written by Douglas T. Wong and published by . This book was released on 1992 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Rotor-mounted Digital Instrumentation System for Helicopter Blade Flight Research Measurements by : Vernie H. Knight
Download or read book A Rotor-mounted Digital Instrumentation System for Helicopter Blade Flight Research Measurements written by Vernie H. Knight and published by . This book was released on 1978 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Safety Science Abstracts Journal by :
Download or read book Safety Science Abstracts Journal written by and published by . This book was released on 1979 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: