CN107304793A - Air environment with vibration isolation buffering device - Google Patents

Air environment with vibration isolation buffering device Download PDF

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Publication number
CN107304793A
CN107304793A CN201610240849.5A CN201610240849A CN107304793A CN 107304793 A CN107304793 A CN 107304793A CN 201610240849 A CN201610240849 A CN 201610240849A CN 107304793 A CN107304793 A CN 107304793A
Authority
CN
China
Prior art keywords
vibration
air environment
buffering device
vibration isolator
vibration isolation
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
CN201610240849.5A
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Chinese (zh)
Inventor
时钟
李玉峰
薛鹏
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.)
Nanjing Ceprei Industrial Technology Research Institute
Original Assignee
Nanjing Ceprei Industrial Technology Research Institute
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 Nanjing Ceprei Industrial Technology Research Institute filed Critical Nanjing Ceprei Industrial Technology Research Institute
Priority to CN201610240849.5A priority Critical patent/CN107304793A/en
Publication of CN107304793A publication Critical patent/CN107304793A/en
Pending legal-status Critical Current

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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
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0234—Feet; Stands; Pedestals, e.g. wheels for moving casing on floor

Landscapes

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

Abstract

The invention provides a kind of air environment with vibration isolation buffering device, including vibration isolation buffering device and air environment rack, described vibration isolation buffering device is bearing type vibration isolator and the upper frame formula vibration isolator supporting with it, and described bearing type vibration isolator and upper frame formula vibration isolator is arranged in the gravity plane of air environment rack.The air environment with vibration isolation buffering device of the present invention, after according to above-mentioned mentality of designing complete design, processing, passes through every vibration, impact test.It thus is seen that in the structure design of air environment, can make equipment that there is good antivibration, impact resistance using above antivibration design method, it is ensured that equipment normal work under the conditions of airborne mechanical environment.

Description

Air environment with vibration isolation buffering device
Technical field
The present invention relates to the air environment with vibration isolation buffering device, belong to intelligence manufacture skill Art field.
Background technology
Air environment is in use often by aircraft engine mechanical oscillation, spray Gas noise, aircraft exterior interference in air flow, the flight attitude of aircraft and take off, land, slide The vibration and impact produced etc. factor.The mechanical environment of these vibrations and impact is made to electronic equipment Into harm mainly have two kinds:1) that amplitude occurs under a certain excited frequency is very big for electronic equipment Resonance, is finally destroyed because vibration acceleration exceedes the limit acceleration that equipment can bear；Or Because the impulsive force produced by impact exceedes the strength degree of equipment and makes damage of facilities.2) it is long-term Vibration or repeat impact make fatigue of materials, so as to cause electronic equipment to destroy.
, in use will be because if the anti-vibration of electronic equipment itself, impact resistance are poor Above-mentioned vibration, percussion and produce failure, so as to influence the operational performance of whole aircraft.For The reliability of equipment is ensured, various vibrations, the shock environment of aircraft is adapted it to, it is necessary to it Carry out Anti-vibration Design.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art part slow with vibration isolation there is provided one kind The air environment of flushing device.
The air environment with vibration isolation buffering device of the present invention, including vibration isolation buffering device With air environment rack, described vibration isolation buffering device is matched somebody with somebody for bearing type vibration isolator and with it The upper frame formula vibration isolator of set, described bearing type vibration isolator and upper frame formula vibration isolator is arranged in machine Carry the gravity plane of electronic equipment cabinet.
Preferably,
Described bearing type vibration isolator and the mounting means of upper frame formula vibration isolator are as follows：In airborne electricity Sub- equipment enclosure bottom configures four bearing type vibration isolators, for constituting bottom installation system, Air environment enclosure top configures two upper frame formula vibration isolators, for limiting shaking for rack Shake.
Described bearing type vibration isolator is resonance free peak vibration isolator.
The air environment with vibration isolation buffering device of the present invention, thinks according to above-mentioned design After road complete design, processing, every vibration, impact test are passed through.It thus is seen that in machine In the structure design for carrying electronic equipment, using the above antivibration design method equipment can be made to have very Antivibration well, impact resistance, it is ensured that equipment normal work under the conditions of airborne mechanical environment.
Brief description of the drawings
Fig. 1 is vibration isolator mounting means schematic diagram；
Fig. 2 is vibration isolator mounting means simplified model figure.
Embodiment
Embodiment 1
Large scale electronic equipment is weakened using vibration isolation buffering device or external environment is avoided to electricity The adverse effect of sub- equipment is economical and one of effective measures.In order to further prevent vibration from rushing The harm produced to the electronic equipment is hit, equipment is improved using vibration isolator in system design Working environment.
(1) type selecting of vibration isolator
Rack is passive vibration isolation using vibration isolator vibration isolation, then has:G=1+ (2DC) 2 (1-C2) 2+ (2DC) 2
In formula, G is vibration transmissibility；D is damping ratio；C is that excited frequency P and vibrating isolation system are intrinsic The ratio between frequency fz.
According to above formula, the effect that vibrating isolation system plays decay vibration is wanted, it is necessary to G<1, i.e. C>2.Carry Excited frequency P=10, the Hz~2000Hz of machine random vibration, minimum excited frequency Pmin=10Hz, So calculating to obtain fz<7Hz.
According to this requirement, the GWF-K types of Nanjing Jie Nuo companies are selected without humorous by comparing us Shake peak vibration isolator.Resonance free peak vibration isolator be variation rigidity according to required by vibration isolation, buffer technology, A kind of metal isolator of variable resistance damping characteristics design, using rigidity fitting technique and dry-friction damping Technology realizes low intrinsic frequency, and can take into account the function of buffering.Its performance parameter is as follows:Inherently Frequency fz≤7Hz；Vibration transmissibility Gv≤1；Shock transmissibility Gsh≤0.7；Single quality m≤ 1.1kg.In order to reduce rocking for rack, also to select matching used with GWF-K type vibration isolators GDJ-K type upper frame formula vibration isolators, its performance parameter is as follows:Intrinsic frequency fz≤5Hz；Single quality m ≤0.7kg。
(2) the installation configuration of vibration isolator
The installation of vibration isolator is configured with diversified forms, but in order that system keeps stable, it should power The vibration between each free degree is asked not couple, the center of gravity that vibration isolator preferably is arranged on into equipment is put down Face.But in view of the actual installation environment in cabin, vibration isolator can not be arranged in rack by us Gravity plane on, but employ the mounting means shown in Fig. 1, its simplified model such as Fig. 2 It is shown：Four bearing type vibration isolators are configured in rack bottom, bottom installation system is constituted, Enclosure top configures two upper frame formula vibration isolators, limits rocking for rack.With wherein one rack Exemplified by, rack weight is 300kg, and the position that center of gravity is projected on bottom surface is as shown in Figure 2, figure midpoint 1st, 2,3,4 be respectively rack bottom surface four vibration isolator mount points, be also that four of equipment hold Loading point, center of gravity subpoint is on symmetrical center line, a1=310, a2=350, try to achieve each strong point Real load:
w1=w2=(w*a2)/(a1+a2)=(300*350)/660 ≈ 80kg
w3=w4=w/2-w1=70kg
In formula, w1、w2、w3、w4It is the real load of four strong points respectively, w is rack weight Amount.
According to result of calculation, two GWF-80k types vibration isolators of selection are arranged on rack bottom 1,2 Mount point, two GWF-70k types vibration isolators are arranged on 3,4 mount points, and two GDJ-80k are installed In enclosure top.Because the vibration isolator of bottom four is chosen according to actual bearer weight, rigidity Center is approximate with center of gravity subpoint to be overlapped, and two other back/top frame vibration-isolator is with center of gravity same vertical In plane, its vertical stiffness is zero, so the vertical vibration of rack is not almost coupled, while two Horizontal rigidity of the individual back/top frame vibration-isolator in free state is symmetrical on center of gravity, reduces level side To coupled vibrations, therefore this vibration isolator configuration mode can efficiently reduce coupled vibrations, make machine Cabinet has preferable stability.

Claims (3)

1. the air environment with vibration isolation buffering device, it is characterized in that, including vibration isolation buffering device and air environment rack, described vibration isolation buffering device is bearing type vibration isolator and the upper frame formula vibration isolator supporting with it, and described bearing type vibration isolator and upper frame formula vibration isolator is arranged in the gravity plane of air environment rack.
2. the air environment according to claim 1 with vibration isolation buffering device, it is characterised in that described bearing type vibration isolator and the mounting means of upper frame formula vibration isolator are as follows：Four bearing type vibration isolators are configured in air environment rack bottom, for constituting bottom installation system, two upper frame formula vibration isolators are configured in air environment enclosure top, for limiting rocking for rack.
3. the air environment according to claim 1 with vibration isolation buffering device, it is characterised in that described bearing type vibration isolator is resonance free peak vibration isolator.
CN201610240849.5A 2016-04-18 2016-04-18 Air environment with vibration isolation buffering device Pending CN107304793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610240849.5A CN107304793A (en) 2016-04-18 2016-04-18 Air environment with vibration isolation buffering device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610240849.5A CN107304793A (en) 2016-04-18 2016-04-18 Air environment with vibration isolation buffering device

Publications (1)

Publication Number Publication Date
CN107304793A true CN107304793A (en) 2017-10-31

Family

ID=60152088

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610240849.5A Pending CN107304793A (en) 2016-04-18 2016-04-18 Air environment with vibration isolation buffering device

Country Status (1)

Country Link
CN (1) CN107304793A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110056600A (en) * 2019-04-02 2019-07-26 南京捷诺环境技术有限公司 A kind of heave-load device anti-vibration and shock platform
CN113573511A (en) * 2020-12-22 2021-10-29 北京航天控制仪器研究所 Vibration reduction cabinet for unmanned ship and vibration reduction method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060086582A1 (en) * 2004-10-25 2006-04-27 Enidine Incorporated Semi-active isolator
CN102970838A (en) * 2012-11-20 2013-03-13 北京广利核***工程有限公司 High and low frequency impact resistance cabinet
CN202889828U (en) * 2012-11-20 2013-04-17 北京广利核***工程有限公司 Equipment cabinet for resisting high and low frequency impacts
CN203722947U (en) * 2013-12-27 2014-07-16 联方云天科技(北京)有限公司 A container data center cabinet damping system
CN104295656A (en) * 2014-10-13 2015-01-21 西安电子工程研究所 Vibration isolation device for electronic product and design method thereof
CN204807691U (en) * 2015-07-28 2015-11-25 北京长城电子装备有限责任公司 Operating board among sonar system
CN205142726U (en) * 2015-12-04 2016-04-06 中国舰船研究设计中心 Carrier -borne commercial electronic equipment rack

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060086582A1 (en) * 2004-10-25 2006-04-27 Enidine Incorporated Semi-active isolator
CN102970838A (en) * 2012-11-20 2013-03-13 北京广利核***工程有限公司 High and low frequency impact resistance cabinet
CN202889828U (en) * 2012-11-20 2013-04-17 北京广利核***工程有限公司 Equipment cabinet for resisting high and low frequency impacts
CN203722947U (en) * 2013-12-27 2014-07-16 联方云天科技(北京)有限公司 A container data center cabinet damping system
CN104295656A (en) * 2014-10-13 2015-01-21 西安电子工程研究所 Vibration isolation device for electronic product and design method thereof
CN204807691U (en) * 2015-07-28 2015-11-25 北京长城电子装备有限责任公司 Operating board among sonar system
CN205142726U (en) * 2015-12-04 2016-04-06 中国舰船研究设计中心 Carrier -borne commercial electronic equipment rack

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110056600A (en) * 2019-04-02 2019-07-26 南京捷诺环境技术有限公司 A kind of heave-load device anti-vibration and shock platform
CN113573511A (en) * 2020-12-22 2021-10-29 北京航天控制仪器研究所 Vibration reduction cabinet for unmanned ship and vibration reduction method thereof
CN113573511B (en) * 2020-12-22 2023-06-06 航天时代(青岛)海洋装备科技发展有限公司 Vibration reduction cabinet for unmanned ship and vibration reduction method thereof

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Application publication date: 20171031