JPH03287498A - Pogo suppressing device for liquid fuel rocket - Google Patents
Pogo suppressing device for liquid fuel rocketInfo
- Publication number
- JPH03287498A JPH03287498A JP2088372A JP8837290A JPH03287498A JP H03287498 A JPH03287498 A JP H03287498A JP 2088372 A JP2088372 A JP 2088372A JP 8837290 A JP8837290 A JP 8837290A JP H03287498 A JPH03287498 A JP H03287498A
- Authority
- JP
- Japan
- Prior art keywords
- pogo
- compliance
- orifice
- accumulator
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims description 10
- 239000007788 liquid Substances 0.000 title claims description 9
- 230000001629 suppression Effects 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 abstract description 8
- 230000010349 pulsation Effects 0.000 abstract description 6
- 230000001133 acceleration Effects 0.000 abstract 2
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical compound C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 239000002760 rocket fuel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/40—Arrangements or adaptations of propulsion systems
- B64G1/402—Propellant tanks; Feeding propellants
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、液体燃料ロケットのポゴを抑止する装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for inhibiting pogo of a liquid fuel rocket.
〔従来の技術］
従来の液体燃料ロケットの推進系で発生するポゴ振動対
策として装備されているポゴ抑止装置はアキュムレータ
内ガス容量とオリフィス径が初期にセントされたままの
固定型である。そのため、ロケット飛行時間すべてにわ
たってポゴ印止するのは容易でなく、初期設定量の央め
方が困難である。[Prior Art] The pogo suppression device, which is installed as a countermeasure against pogo vibration generated in the propulsion system of conventional liquid fuel rockets, is a fixed type in which the gas capacity in the accumulator and the orifice diameter remain set at the initial stage. Therefore, it is not easy to perform pogo marking for the entire rocket flight time, and it is difficult to determine the initial setting amount.
液体燃料ロケットのポゴは一種の自助振動であり、第２
図に示すように推進系の何らかの脈動がエンジンの推力
変動を引き起こし、それにより機体を加振しその力が推
進系の脈動を励起する閉ループ系をなしているものであ
る。The pogo of a liquid fuel rocket is a kind of self-supporting vibration, and the second
As shown in the figure, any pulsation in the propulsion system causes fluctuations in the thrust of the engine, which excites the aircraft, and the resulting force excites the pulsation in the propulsion system, creating a closed-loop system.
（発明が解決しようとする課題〕
上記従来のポゴ抑止装置には解決すべき次の課題があっ
た。(Problems to be Solved by the Invention) The conventional pogo deterrent device described above has the following problems to be solved.
即ち、ポゴを抑止するために推進系の脈動をなくし閉ル
ープ系を振動上切断すればよいわけで、従来は燃料系統
のフィードラインにアキュムレータタイプのポゴ抑止装
置を装置して対処していた。That is, in order to suppress pogo, it is sufficient to eliminate pulsation in the propulsion system and to cut the closed loop system due to vibrations. Conventionally, this has been dealt with by installing an accumulator type pogo suppression device in the feed line of the fuel system.
しかし、ポゴは機体との連成であるため複数ある機体の
振動モード各々の振動数で起こる可能性があり、またそ
の振動数が推進薬の消費に従って変化する。そのため、
従来の固定されたアキュムレ−タ容積とオリフィス径の
ポゴ抑止装置では、ロケットの飛行時間すべてにわたっ
て、ポゴを抑止することは容易ではないという問題があ
った。However, since pogo is coupled to the aircraft, it may occur at the frequency of each of the aircraft's multiple vibration modes, and the frequency changes as the propellant is consumed. Therefore,
Conventional pogo deterrents with fixed accumulator volumes and orifice diameters have a problem in that it is difficult to deter pogos throughout the rocket's flight time.
この発明は、上記問題点を解消したロケットのポゴ抑止
装置を提供することを目的とする。An object of the present invention is to provide a rocket pogo restraint device that solves the above-mentioned problems.
（課題を解決するための手段〕
本発明は上記課題の解決手段として、液体燃料ロケット
のポゴ抑止装置において、ポゴ抑止装置にコンプライア
ンスを与えるアキュムレータと、ポゴ抑止装置にレジス
タンスを与えるオリフィスと、ポゴ振動数を検知する加
速度計と、上記アキュムレータヘガスを供給するガス供
給装置と、上記オリフィスの開度を調整する開度調整装
置とを具備してなることを特徴とする液体燃料ロケット
のポゴ抑止装置を提供しようとするものである。(Means for Solving the Problems) As a means for solving the above problems, the present invention provides a pogo restraint device for a liquid fuel rocket, which includes an accumulator that provides compliance to the pogo restraint device, an orifice that provides resistance to the pogo restraint device, and a pogo vibration A pogo deterrent device for a liquid fuel rocket, characterized in that it is equipped with an accelerometer that detects the number of accelerometers, a gas supply device that supplies gas to the accumulator, and an opening adjustment device that adjusts the opening degree of the orifice. This is what we are trying to provide.
（作用〕
本発明は上記のように構成されるので次の作用を有する
。(Function) Since the present invention is constructed as described above, it has the following function.
即ち、ポゴの振動モードに従ってガスを供給されるアキ
ュムレータのコンプライアンスと開度調整装置によって
開度を調整されるオリフィスのレジスタンスを自動的に
調整し、推進系の脈動を押さえ、ポゴ発生を抑止する。That is, the compliance of the accumulator to which gas is supplied according to the vibration mode of the pogo and the resistance of the orifice whose opening is adjusted by the opening adjustment device are automatically adjusted to suppress pulsation in the propulsion system and suppress the occurrence of pogo.
〔実施例］
本発明の一実施例を第１図により説明する。第１図は本
実施例の全体構成の模式的で、図において１はアキュム
レータでありガスを内部に含むことによりコンプライア
ンスを与え、オリフィス２で与えられるレジスタンスを
含めてポゴ抑止の働きをする。これらは、フィードライ
ン６に装着される。コンプライアンス及びレジスタンス
の調整は各々ガス供給装置４とオリフィス径調整装置５
によってなされる。ここで、コンプライアンス及びレジ
スタンスは下記で定義される。[Example] An example of the present invention will be described with reference to FIG. FIG. 1 schematically shows the overall configuration of this embodiment. In the figure, 1 is an accumulator which provides compliance by containing gas therein, and functions to suppress pogo including the resistance provided by the orifice 2. These are attached to the feed line 6. Compliance and resistance are adjusted by the gas supply device 4 and orifice diameter adjustment device 5, respectively.
done by. Here, compliance and resistance are defined below.
Ｓ−Ｐ＋ （Ｌａ−３”＋Ｒａ−５十上）Ｑ−Ｏａ
ここで、Ｃａ：コンプライアンス、
Ｒａニレジスタンス、
Ｌａ：イナータンス、
Ｐ；入口の圧力変動、
Ｑ：アキュムレータ内流量変動、
Ｓニラプラス演算子（Ｓ−ＰミＰ）
ポゴ発生は、機体の振動モードと連成して起こるため、
加速度計３を機体に装着し脈動（もしくは振動）が発生
すればどの振動モードか加速度計３でモニターできるた
め、その信号でコンプライアンス、レジスタンスを調整
し、ポゴ抑止をできる値にする。S-P+ (La-3" + Ra-5 10+) Q-Oa where, Ca: Compliance, Ra resistance, La: Inertance, P: Inlet pressure fluctuation, Q: Accumulator flow fluctuation, S Nira plus operator (S-PmiP) Pogo generation occurs in conjunction with the vibration mode of the aircraft, so
When an accelerometer 3 is attached to the aircraft, if pulsation (or vibration) occurs, the vibration mode can be monitored using the accelerometer 3, and compliance and resistance can be adjusted based on that signal to values that allow pogo suppression.
また、コンプライアンスの調整は具体的にはガスをアキ
ュムレータ１に供給し、その供給ガス圧とつり合うとこ
ろでアキュムレータ１内ガス容量が決定される。また、
レジスタンスの調整は穴のあいた曲面プレートを２枚重
ねて、１枚を回転させるオリフィス径調整装置５により
穴径を調整し、所定のレジスタンスを与えるものである
。Moreover, specifically, compliance adjustment is performed by supplying gas to the accumulator 1, and determining the gas capacity in the accumulator 1 when the gas pressure is balanced with the supplied gas pressure. Also,
The resistance is adjusted by stacking two curved plates with holes and adjusting the hole diameter using an orifice diameter adjusting device 5 that rotates one of the plates to provide a predetermined resistance.
［考案の効果］
本発明は上記のように構成されるので次の効果を有する
。[Effects of the Invention] Since the present invention is configured as described above, it has the following effects.
即ち、ポゴ振動が抑止されるのでロケット燃料の安定し
た燃焼が得られ、この結果、ロケットの安定飛翔が得ら
れる。That is, since pogo vibrations are suppressed, stable combustion of rocket fuel can be obtained, and as a result, stable flight of the rocket can be obtained.
第１図は本発明の一実施例に係る液体燃料ロケットのポ
ゴ抑止装置の模式的構成図、第２図はポゴ（ＰＯＧＯ）
のメカニズムを説明するために示したポゴ振動閉ループ
の図である。
１・・・アキュムレータ、 ２・・・オリフィス、
３・・・加速度計、 ４・・・ガス供給装置、
５・・・オリフィス径調整装置、
６・・・フィードライン。Fig. 1 is a schematic configuration diagram of a pogo restraint device for a liquid fuel rocket according to an embodiment of the present invention, and Fig. 2 shows a pogo (POGO)
FIG. 2 is a diagram of a pogo vibration closed loop shown to explain the mechanism of the oscillation. 1...Accumulator, 2...Orifice,
3... Accelerometer, 4... Gas supply device,
5... Orifice diameter adjustment device, 6... Feed line.
Claims (1)
置にコンプライアンスを与えるアキュムレータと、ポゴ
抑止装置にレジスタンスを与えるオリフィスと、ポゴ振
動数を検知する加速度計と、上記アキュムレータへガス
を供給するガス供給装置と、上記オリフィスの開度を調
整する開度調整装置とを具備してなることを特徴とする
液体燃料ロケットのポゴ抑止装置。A pogo deterrent device for a liquid fuel rocket includes an accumulator that provides compliance to the pogo deterrent device, an orifice that provides resistance to the pogo deterrent device, an accelerometer that detects the pogo vibration frequency, and a gas supply device that supplies gas to the accumulator. A pogo suppression device for a liquid fuel rocket, comprising: an opening adjustment device for adjusting the opening of the orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2088372A JPH03287498A (en) | 1990-04-04 | 1990-04-04 | Pogo suppressing device for liquid fuel rocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2088372A JPH03287498A (en) | 1990-04-04 | 1990-04-04 | Pogo suppressing device for liquid fuel rocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03287498A true JPH03287498A (en) | 1991-12-18 |
Family
ID=13940966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2088372A Pending JPH03287498A (en) | 1990-04-04 | 1990-04-04 | Pogo suppressing device for liquid fuel rocket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03287498A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2975440A1 (en) * | 2011-05-17 | 2012-11-23 | Snecma | POWER SYSTEM AND METHOD FOR POGO EFFECT DELETION |
| RU2474517C2 (en) * | 2011-02-16 | 2013-02-10 | Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр имени М.В. Хруничева" | Method of killing elastic vibrations of clustered rocket body |
| JP2013155655A (en) * | 2012-01-30 | 2013-08-15 | Japan Aerospace Exploration Agency | Device and method for controlling thrust of liquid rocket engine |
| FR3026440A1 (en) * | 2014-09-30 | 2016-04-01 | Snecma | METHOD OF POGO EFFECT DELETION |
| JP2018507346A (en) * | 2015-01-30 | 2018-03-15 | アリアーヌグループ ソシエテ パ アクシオンス シンプリフィエ | Capacitive device for suppressing pogo action with a somewhat centered discharge tube that can be positioned in the bend |
| JP2020513498A (en) * | 2016-12-02 | 2020-05-14 | アリアーヌグループ ソシエテ パ アクシオンス シンプリフィエ | Pogo effect correction system |
| JP2020531739A (en) * | 2017-08-24 | 2020-11-05 | アリアーヌグループ ソシエテ パ アクシオンス シンプリフィエ | Improved supply system for supplying rocket engines |
-
1990
- 1990-04-04 JP JP2088372A patent/JPH03287498A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2474517C2 (en) * | 2011-02-16 | 2013-02-10 | Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр имени М.В. Хруничева" | Method of killing elastic vibrations of clustered rocket body |
| EP2772638A3 (en) * | 2011-05-17 | 2015-04-08 | Snecma | Rocket engine fuel supply system and method for eliminating the POGO effect |
| RU2598508C2 (en) * | 2011-05-17 | 2016-09-27 | Снекма | Fuel supply system and method for eliminating pogo effect |
| US9528470B2 (en) | 2011-05-17 | 2016-12-27 | Snecma | Feed system and a method of suppressing the POGO effect |
| JP2014517893A (en) * | 2011-05-17 | 2014-07-24 | スネクマ | Supply system and method for suppressing pogo effect |
| FR2975440A1 (en) * | 2011-05-17 | 2012-11-23 | Snecma | POWER SYSTEM AND METHOD FOR POGO EFFECT DELETION |
| EP2772639A2 (en) | 2011-05-17 | 2014-09-03 | Snecma | Rocket engine fuel system and method for eliminating the POGO effect |
| WO2012156615A3 (en) * | 2011-05-17 | 2013-03-28 | Snecma | Power supply system and method for eliminating the pogo effect |
| EP2772639A3 (en) * | 2011-05-17 | 2015-04-08 | Snecma | Rocket engine fuel system and method for eliminating the POGO effect |
| EP2772638A2 (en) | 2011-05-17 | 2014-09-03 | Snecma | Rocket engine fuel supply system and method for eliminating the POGO effect |
| JP2013155655A (en) * | 2012-01-30 | 2013-08-15 | Japan Aerospace Exploration Agency | Device and method for controlling thrust of liquid rocket engine |
| WO2016051047A1 (en) * | 2014-09-30 | 2016-04-07 | Snecma | Method for eliminating the pogo effect |
| FR3026440A1 (en) * | 2014-09-30 | 2016-04-01 | Snecma | METHOD OF POGO EFFECT DELETION |
| US10914268B2 (en) | 2014-09-30 | 2021-02-09 | Arianegroup Sas | Method for suppressing the pogo effect |
| JP2018507346A (en) * | 2015-01-30 | 2018-03-15 | アリアーヌグループ ソシエテ パ アクシオンス シンプリフィエ | Capacitive device for suppressing pogo action with a somewhat centered discharge tube that can be positioned in the bend |
| JP2020513498A (en) * | 2016-12-02 | 2020-05-14 | アリアーヌグループ ソシエテ パ アクシオンス シンプリフィエ | Pogo effect correction system |
| JP2020531739A (en) * | 2017-08-24 | 2020-11-05 | アリアーヌグループ ソシエテ パ アクシオンス シンプリフィエ | Improved supply system for supplying rocket engines |
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