JPS61130641A - Resonance prevention system for system - Google Patents

Resonance prevention system for system

Info

Publication number
JPS61130641A
JPS61130641A JP25241984A JP25241984A JPS61130641A JP S61130641 A JPS61130641 A JP S61130641A JP 25241984 A JP25241984 A JP 25241984A JP 25241984 A JP25241984 A JP 25241984A JP S61130641 A JPS61130641 A JP S61130641A
Authority
JP
Japan
Prior art keywords
resonance point
acceleration
spring constant
damping device
vibration
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
Application number
JP25241984A
Other languages
Japanese (ja)
Inventor
Ikuya Tachibana
立花　郁也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP25241984A priority Critical patent/JPS61130641A/en
Publication of JPS61130641A publication Critical patent/JPS61130641A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

PURPOSE:To improve the vibration-resisting quality of electronic equipment by changing the spring constant of a damping device for adjusting the resonance point and preventing the occurrence of acceleration over a predetermined level. CONSTITUTION:In a normal vibrating condition, a special damping device 3 and a general damping device 4 work concurrently and the characteristics of curves 7 are given with a resonance point W2 due to a synthetic spring constant. When a vibratory frequency nears the resonance point W2, generated acceleration increases. As soon as it has exceeded a predetermined acceleration level 9, the damping member of the foregoing damping device 3 gives a slip and this device becomes free. Consequently, the said spring constant is changed over, giving the characteristics of curves 6 with a resonance point W1, and generated acceleration rapidly gives a drop. The vibration-resisting quality of electronic equipment is thereby improved.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はレーダ等の装置の振動緩衝装置の共振防止方式
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a resonance prevention system for a vibration damping device for a device such as a radar.

〔従来の技術〕[Conventional technology]

従来、この種の振動緩衝方式はバネ定数一定の緩衝器を
使用していたため、ある振動周波数において共振点が必
ずあった。Conventionally, this type of vibration damping system used a damper with a constant spring constant, so there was always a resonance point at a certain vibration frequency.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来の振動緩衝方式は共振点を持りているので
使用環境条件から要求される振動周波数範囲外に共振点
を持って行く構造あるいは共振しても共振時の荷重に耐
えられる、電子部品の選択、及び高強度を有する堅固な
構造が必要であった。Since the conventional vibration damping method described above has a resonance point, it is necessary to have a structure that moves the resonance point outside the vibration frequency range required by the usage environment conditions, or an electronic component that can withstand the load at resonance even if it resonates. selection, and a solid structure with high strength was required.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の共振防止方式は従来の一般の緩衝器と加速度の
大小により動作、非動作を制御できる特殊緩衝器を組合
せた共振防止振動緩衝装置を有している。The resonance prevention method of the present invention has a resonance prevention vibration damping device that is a combination of a conventional general shock absorber and a special shock absorber whose operation and non-operation can be controlled depending on the magnitude of acceleration.

〔実施例〕〔Example〕

次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は本発明の一実施例を示す外観図、第２図は実施
例による振動性能を示すグラフである。FIG. 1 is an external view showing an embodiment of the present invention, and FIG. 2 is a graph showing the vibration performance of the embodiment.

電子装置１は取付ペース５に固定された共振防止緩衝装
置２に取付けられている共振防止緩衝装置２は特殊緩衝
器３及び一般の緩衝器４で構成されている。The electronic device 1 is attached to an anti-resonance shock absorber 2 fixed to a mounting plate 5. The anti-resonance shock absorber 2 is composed of a special shock absorber 3 and a general shock absorber 4.

通常振動時は特殊緩衝器３及び一般の緩衝器４が同時に
作動し、合成されたバネ定数によりＷｘの共振点を有し
、カーブ７の性能となる。振動周波数が共振点Ｗ２４Ｃ
近づくと、発生加速度が増加し、設定加速度９以上にな
ると特殊緩衝器３の緩衝材部分がスリップし、特殊緩衝
器３はフリー状態となる。そのため電子装置１は一般の
緩衝器のみで支持され、バネ定数が切換わり共振点Ｗｌ
を有するカーブ６の性能になり、発生加速度は急激に減
少する。発生加速度が減少すると特殊緩衝器３が再び作
動し、特殊緩衝器３及び一般の緩衝器４が同時に作用し
、カーブ７の性能に戻り発生加速度が増加する。再び設
定加速度９に達した点で特殊緩衝器３がフリー状態とな
り発生加速度が減少する。この繰り返しにより共振点近
辺の発生加速度を設定加速度９以下に押え、カーブ８の
性能にする事ができる。During normal vibration, the special shock absorber 3 and the general shock absorber 4 operate simultaneously, and the combined spring constant has a resonance point of Wx, resulting in the performance of curve 7. Vibration frequency is resonance point W24C
As it approaches, the generated acceleration increases, and when the set acceleration exceeds 9, the buffer material portion of the special shock absorber 3 slips, and the special shock absorber 3 becomes free. Therefore, the electronic device 1 is supported only by a general shock absorber, and the spring constant is switched so that the resonance point Wl
The performance becomes curve 6 with , and the generated acceleration decreases rapidly. When the generated acceleration decreases, the special shock absorber 3 operates again, and the special shock absorber 3 and the general shock absorber 4 act simultaneously, returning to the performance of curve 7 and increasing the generated acceleration. When the set acceleration 9 is reached again, the special buffer 3 becomes free and the generated acceleration decreases. By repeating this process, it is possible to suppress the acceleration generated near the resonance point to a set acceleration of 9 or less, and achieve the performance of curve 8.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明は緩衝器の働きを制御する
ことにより緩衝装置のバネ定数を切換え共振点を切換え
ることができる。この結果設定加速度以上の加速度が発
生する共振振動を防止することができ、電子装置の設計
において耐振性に対する特別な考慮をしなくても良い効
果がある。As described above, the present invention can change the resonance point by changing the spring constant of the shock absorber by controlling the function of the shock absorber. As a result, it is possible to prevent resonance vibration in which an acceleration higher than the set acceleration is generated, and there is an effect that there is no need to take special consideration to vibration resistance in designing the electronic device.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す外観図、第２図はその
振動性能を示すグラフである。 １・・・・・・電子装置、２・・・・・・共振防止緩衝
装置、３・・・・・・特殊緩衝器、４・・・・・・一般
の緩衝器、５・・・・・・取付ベース。FIG. 1 is an external view showing an embodiment of the present invention, and FIG. 2 is a graph showing its vibration performance. 1...Electronic device, 2...Resonance prevention buffer device, 3...Special buffer, 4...General buffer, 5... ...Mounting base.

Claims (1)

【特許請求の範囲】[Claims] 装置が載置されバネ定数が異なる緩衝器を備え、加速度
の大きさに応じて所要のバネ定数をもつ緩衝器が動作す
るようにしたことを特徴とする装置の共振防止方式。1. A resonance prevention method for a device, characterized in that the device is mounted on a buffer having a different spring constant, and the buffer having a required spring constant operates according to the magnitude of acceleration.
JP25241984A 1984-11-29 1984-11-29 Resonance prevention system for system Pending JPS61130641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25241984A JPS61130641A (en) 1984-11-29 1984-11-29 Resonance prevention system for system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25241984A JPS61130641A (en) 1984-11-29 1984-11-29 Resonance prevention system for system

Publications (1)

Publication Number Publication Date
JPS61130641A true JPS61130641A (en) 1986-06-18

Family

ID=17237090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25241984A Pending JPS61130641A (en) 1984-11-29 1984-11-29 Resonance prevention system for system

Country Status (1)

Country Link
JP (1) JPS61130641A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013511670A (en) * 2009-11-20 2013-04-04 イーエイーディーエス、ドイチュラント、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング Shock blocking structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013511670A (en) * 2009-11-20 2013-04-04 イーエイーディーエス、ドイチュラント、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング Shock blocking structure

Similar Documents

Publication Publication Date Title
US5236186A (en) Vibration damper
EP3004682B1 (en) Self-tuned mass damper and system comprising the same
Shekhar et al. Performance of non-linear isolators and absorbers to shock excitations
US20060175169A1 (en) Tunable vibration absorption device
JPS6235537B2 (en)
US20060225980A1 (en) Tunable adjustable multi-element hybrid particle damper
US5160121A (en) Shock absorbing compressional mounting apparatus
JPS61130641A (en) Resonance prevention system for system
RU2611231C1 (en) Kochetov's vibration isolator with variable damping structure
RU2611228C1 (en) Kochetov's vibration isolator with variable damping
CA1189559A (en) Electromagnetic vibrating system operable at high amplitudes
JP5801139B2 (en) Shock damper
JPS6059381B2 (en) Vibration isolation method for upper floor
US6138998A (en) Spacecraft antenna slew control systems
JP3835143B2 (en) Vibration control device
JPH06117485A (en) Frequency coping type vibration damper
Holdhusen et al. Damping effects on the state-switched absorber used for vibration suppression
JPS58146744A (en) Vibration absorber
JPH029190B2 (en)
JPH01207574A (en) Vibrationproof device for construction
KR102388199B1 (en) Dynamic absorber and vibration reduce facilities including the same
Zilletti et al. Electromechanical pendulum for vibration control and energy harvesting
JP2684999B2 (en) Electronic device anti-vibration
JP4197371B2 (en) Vibration control method
JPH09280310A (en) Method for controlling vibration using anti-resonance and viscous dynamic vibration absorber