SU630456A1 - Device for protecting gas-turbine engines from surging - Google Patents
Device for protecting gas-turbine engines from surgingInfo
- Publication number
- SU630456A1 SU630456A1 SU762338447A SU2338447A SU630456A1 SU 630456 A1 SU630456 A1 SU 630456A1 SU 762338447 A SU762338447 A SU 762338447A SU 2338447 A SU2338447 A SU 2338447A SU 630456 A1 SU630456 A1 SU 630456A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- turbine engines
- output
- surging
- protecting gas
- spectral analyzer
- Prior art date
Links
Description
подачей топлива, регул тор 7 положени , индикатор 8.fuel supply, regulator 7 position, indicator 8.
Акустические колебани , излучаемые двигателем , воспринимаютс датчиком 1 и в виде, электрического сигнала через усилитель 2.поступают на спектральный анализатор 3. Частотный диапазон анализатора 3 перекрывает спектр акустических колебаний; На вьжадб анализатора 3 имеетс комплекс йрйзн-атов, число которых равно числу выбранных полос анализа. Логический блок 4 по этой совокупности признаков определ ет начало помпажных влений по правилам теории распознавани образов. В качестве логического блока можно использовать известные распознающие устройства (персептрон, адантивные самообучающиес системы и т. п.), а также ЭЦВМ с программой работы, реализующей алгоритмы распознавани . Сигнал с выхода логического блока 4 поступает на исполнительный элемент 5, который подает питание на элемент 6 управлени подачей топлива, регул тор 7 положени , измен ющий положение направл ющих аппаратов, и индикатор 8, сигнализирующий о начале срывных влений. Уменьшени е подачи топлива в камеры сгорани и поворот направл ющих аппаратов компрессора устран ют помпаж.Acoustic oscillations emitted by the engine are sensed by sensor 1 and in the form of an electrical signal through amplifier 2. they reach the spectral analyzer 3. The frequency range of the analyzer 3 covers the spectrum of acoustic oscillations; On the analyzer 3 there is a complex of active-numbers, the number of which is equal to the number of selected bands of analysis. Logic unit 4 by this combination of features determines the beginning of surge effects according to the rules of the pattern recognition theory. As a logical unit, you can use well-known recognition devices (perceptron, adantive self-learning systems, etc.), as well as an electronic computer with a program of work that implements recognition algorithms. The signal from the output of logic unit 4 is supplied to the actuating element 5, which supplies power to the fuel supply control element 6, the position controller 7, which changes the position of the guide vanes, and the indicator 8, which signals the start of stalling phenomena. Reducing the fuel supply to the combustion chambers and turning the compressor’s guide vanes eliminate surge.
Благодар введению в схему новых элементов: спектрального анализатора и логического блока - повыщаетс точность и надел ность определени начала помпал ных влений в газотурбинных двигател х, что в совокупности с устранением расходов на разработку и совершенствованием устройств дл защиты газотурбинных двигателей от помпажных и срывных влений дает экономию в народном хоз йстве.Due to the introduction of a new element in the scheme: a spectral analyzer and a logic unit, the accuracy and reliability of determining the onset of pumping phenomena in gas turbine engines increases, which together with the elimination of development costs and improvement of devices for protecting gas turbine engines from surge and disruptive effects in the national household.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762338447A SU630456A1 (en) | 1976-03-24 | 1976-03-24 | Device for protecting gas-turbine engines from surging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762338447A SU630456A1 (en) | 1976-03-24 | 1976-03-24 | Device for protecting gas-turbine engines from surging |
Publications (1)
Publication Number | Publication Date |
---|---|
SU630456A1 true SU630456A1 (en) | 1978-10-30 |
Family
ID=20653660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762338447A SU630456A1 (en) | 1976-03-24 | 1976-03-24 | Device for protecting gas-turbine engines from surging |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU630456A1 (en) |
-
1976
- 1976-03-24 SU SU762338447A patent/SU630456A1/en active
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