CN108150603A - A kind of inertial navigation equipment damper - Google Patents
A kind of inertial navigation equipment damper Download PDFInfo
- Publication number
- CN108150603A CN108150603A CN201710706688.9A CN201710706688A CN108150603A CN 108150603 A CN108150603 A CN 108150603A CN 201710706688 A CN201710706688 A CN 201710706688A CN 108150603 A CN108150603 A CN 108150603A
- Authority
- CN
- China
- Prior art keywords
- inertial navigation
- iron piece
- navigation equipment
- parts
- rubber element
- 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
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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
- F16F15/04—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 using elastic means
- F16F15/08—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 using elastic means with rubber springs ; with springs made of rubber and metal
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention relates to a kind of inertial navigation equipment dampers,Including upper iron piece,Elastic element and lower iron piece,The elastic element is rubber element,The rubber element includes upper,Lower frustum and mediate cylindrical,The upper iron piece central upper opens up connection screw thread hole,Downside is wholely set the connection convex block of clamping rubber element upper groove,The lower iron piece includes the connecting groove and connecting plate of frustum under clamping rubber element,Connecting plate surrounding opens up lower connection through-hole,The rubber element lower end opens up ball platform groove,The inertial navigation equipment damper,The damper structure of reasonable design,Ensure the elastic stiffness ratio and deflection in three directions of elastic element,Design flexibility element,Utilize elastic stiffness and damping characteristic parameter,So that under vibration condition,Damper elastomeric rigidity keeps linear substantially,And under the conditions of impact,Then make damper that certain hardening occur,So that deflection and overload factor are respectively less than technical requirement,Ensure inertial navigation equipment normal operation.
Description
Technical field
The present invention relates to damper more particularly to inertial navigation equipment dampers.
Background technology
Peculiar to vessel, big gun is a kind of independent of external information, also do not led to the autonomous type of external radiation energy with inertial navigation equipment
Boat system when inertial navigation equipment is run, in order to ensure equipment normal operation, needs to install by damper, the correlation of damper
Technical requirement：
A) environment temperature requirement：- 50 DEG C~+70 DEG C of storage temperature, -40 DEG C~+55 DEG C of operating temperature；
Resonant frequency requirement：The vibration frequency of equipment horizontal direction in the range of total temperature after mounting dampers is in 10Hz
In~30Hz, for the vibration frequency of vertical direction in 10Hz~40Hz, all directions difference on the frequency is no more than 15Hz；
B) vibration condition requirement：(1) three direction room temperature swept-sine vibration, each direction (5~200~5) Hz frequency bands
Frequency sweep 2 times, scans 15min, vibration parameters every time：(5~7Hz, 25.4mm), (7~92Hz, 2.5g), (92~110Hz,
0.15mm), (110~200Hz, 3.5g)；(2) X-direction high and low temperature swept-sine vibration, respectively in -40 DEG C and+55 DEG C of conditions
Under, (5~200~5) Hz frequency bands 1 15min of frequency sweep, vibration parameters：(5~7Hz, 25.4mm), (7~92Hz, 2.5g),
(92~110Hz, 0.15mm), (110~200Hz, 3.5g)；(3) in the range of total temperature, the times magnification of damper all directions vibration
Number is no more than 7 times；
C) impact condition requirement：(1) X is to (inertial navigation equipment long axis direction)：200g, 3ms, 200 durable impacts of semisinusoidal,
It is carried out by quick washing and at a slow speed in the way of impact alternate cycles.1. quick washing：1min impacts 1 group of 2 conducts, continuous punching
5 groups are hit, every group of interval time 5min (totally 10 Secondary Shocks)；2. it impacts at a slow speed：3min impacts 1 group of 1 bump, 10 conducts,
5 groups are carried out altogether, every group of interval time 5min (totally 50 Secondary Shocks), it is desirable that the shock response of system is less than 50g；(2) Y-direction (inertial navigation
Equipment mounting surface normal direction)：100g, 6ms, 6 semisinusoidal impacts, it is desirable that the shock response of system is less than 60g；
Traditional rubber absorbers cannot be met the requirements, it is difficult to ensure inertial navigation equipment normal operation.
Invention content
The applicant is directed to disadvantage mentioned above, has carried out Improvement, provides a kind of inertial navigation equipment damper.
The technical solution adopted in the present invention is as follows：
A kind of inertial navigation equipment damper, including upper iron piece, elastic element and lower iron piece, the elastic element is rubber member
Part, the rubber element include upper and lower frustum and mediate cylindrical, and the upper iron piece central upper opens up connection screw thread hole,
Downside is wholely set the connection convex block of clamping rubber element upper groove, and the lower iron piece includes the company of frustum under clamping rubber element
Groove and connecting plate are connect, connecting plate surrounding opens up lower connection through-hole, and the rubber element lower end opens up ball platform groove.
As a further improvement of the above technical scheme：
The upper iron piece and lower iron piece are made of Q345 steel.
The rubber element formula is in the specific ratio of mass fraction：60 parts of 3L natural gums, 40 parts of cis-butadiene cement, sulphur 1.5
Part, 5 parts of zinc oxide, 1 part of stearic acid, 1 part of CZ accelerating agents, 39 parts of N330 carbon blacks, 20 parts of dibutyl ester, 2 parts of 4010N anti-aging agents, RD
20 parts of 1 part of anti-aging agent, 1 part of paraffin, 22.5 parts of paraffin oil and chlorinated scoline.
For the rubber element using colloid using squash type sulfidization molding technological forming, curing temperature is 160 DEG C, vulcanization pressure
Power 16MPa.
The hardness of the elastic element colloid be 55 ° of shore, the tensile strength ＞ 16MPa of colloid.
Beneficial effects of the present invention are as follows：The inertial navigation equipment damper, between inertial navigation equipment and mounting base, week
The vibration of collarette border generation, shock loading are transmitted to by damper in equipment by equipment installation pedestal, and damper, which will appear, to shake
Dynamic, blastic deformation；In the process, using elastic element rigidity and damping characteristic, the frequency of equipment and damper system is designed
The dynamic response characteristics such as sound achieve the purpose that control device vibration, shock response；By rationally designing damper structure, adjust
Elastic element is in the compressing of three major axes orientations of damper, shear-deformable form, it is ensured that the elasticity in three directions of elastic element is just
Degree ratio and deflection；And by adjusting the hardness and formula of rubber, obtain ideal elastic element elastic stiffness and damping
Characterisitic parameter so that under vibration condition, damper elastomeric rigidity keeps linear substantially, and under the conditions of impact, then make damper
Certain hardening occurs, so that deflection and overload factor are respectively less than technical requirement.
Description of the drawings
Fig. 1 is inertial navigation equipment damper sectional view provided by the invention.
Fig. 2 is inertial navigation equipment damper sectional view vertical view provided by the invention.
Fig. 3 is inertial navigation equipment damper system X provided by the invention to room temperature sine sweep trial curve.
Fig. 4 is inertial navigation equipment damper system X provided by the invention to low temperature sine sweep trial curve.
Fig. 5 is inertial navigation equipment damper system Y-direction impact test curve provided by the invention.
In figure：1st, upper iron piece；11st, upper connection screw thread hole；12nd, convex block is connected；2nd, elastic element；21st, upper groove；22nd, circle
Billiard table groove；3rd, lower iron piece；31st, connecting groove；32nd, connecting plate；33rd, lower connection through-hole.
Specific embodiment
Below in conjunction with the accompanying drawings, illustrate the specific embodiment of the present invention.
As shown in Figure 1 and Figure 2, the inertial navigation equipment damper of the present embodiment, including upper iron piece 1, elastic element 2 and lower iron piece
3, elastic element is rubber element, and rubber element includes upper and lower frustum and mediate cylindrical, and upper frustum cone angle is 37 °, frustum is high
17mm, mediate cylindrical outer diameter 56mm, height 10mm, the cone angle of lower frustum are 16 °, the high 14mm of frustum, 1 central upper of upper iron piece
Connection screw thread hole 11 is opened up, downside is wholely set the connection convex block 12 of clamping rubber element upper groove 21, and lower iron piece 3 includes card
The connecting groove 31 of frustum under rubber element and connecting plate 32 are connect, 32 surrounding of connecting plate opens up lower connection through-hole 33, rubber element
Lower end opens up ball platform groove 22, and the sphere diameter 20mm of the ball platform groove 22, is highly 16mm.
According to structure design as a result, establishing Performance simulation of shock absorbers model, steel construction piece linear elastic materials, rubber material
With Neo-Hooke models, the variation of use environment temperature is considered, the design rigidity of damper is preferably able to tend to design objective
Inertial navigation equipment vertical vibration frequency 30Hz, the oscillation crosswise frequency 20Hz of the average value of range, i.e. mounting dampers；Meanwhile subtract
Shake device under the conditions of vertical based on compressive deformation, damper springrate ratio is about at 1.6 times or so, to cut under side condition
Based on shear deformation, damper springrate ratio is about at 1.2 times or so；Estimate under vibrational state by this coefficient, damper hangs down
To Static stiffness be 116.6kN/m, lateral static stiffness 69.1kN/m；According to Static stiffness design parameter, the hardness of rubber bodies is adjusted
Performance simulation of shock absorbers calculating is carried out, the hardness for determining colloid is 55 ° of shore；On this basis, damper impact strength is carried out
It calculates, i.e., in the vertical application 100g/6ms semisinusoidals acceleration load of damper pedestal, is laterally applied to 200g/3ms semisinusoidals and adds
Speed load；By calculating, under the effect of vertical impact load, the maximum stress of damper is about 14MPa, lateral impact loading
Under effect, the maximum stress of damper is about 15.5MPa.
According to design of Simulation as a result, upper iron piece 1 and lower iron piece 2 are made of Q345 steel, the rubber element formula
It is in the specific ratio of mass fraction：60 parts of 3L natural gums, 40 parts of cis-butadiene cement, 1.5 parts of sulphur, 5 parts of zinc oxide, 1 part of stearic acid, CZ
1 part of accelerating agent, 39 parts of N330 carbon blacks, 20 parts of dibutyl ester, 2 parts of 4010N anti-aging agents, 1 part of RD anti-aging agents, 1 part of paraffin, paraffin oil
22.5 parts and 20 parts of chlorinated scoline, and pass through squash type sulfidization molding technological forming, curing temperature is 160 DEG C, vulcanization pressure
Power 16MPa, molding rubber element meets hardness for 55 ° of shore, and rubber element tensile strength ＞ 16MPa tensile strength ＞
16MPa。
The rubber element is molded by following steps：(1) sizing compound formula technique；(2) rubber mixing technique；(3) it is surface-treated
Process；(4) steel sand process is thrown on surface；(5) rubber-moulding process；(6) vulcanize suppression process；(7) product trimming process；(8) it examines
Requirement is tested, rubber element production is completed, is then assembled together rubber element and upper and lower ironware 1,2, separate unit inertial navigation equipment four
The upper connection screw thread hole 11 of upper iron piece 1 is coordinated to connect damper by bolt below a corner, worn below damper by bolt
The connection through-hole 33 for crossing lower iron piece 3 is connected in the mounting base of lower section, and inertial navigation equipment is connected in mounting base by damper
.
It installs rear inertial navigation equipment and damper system performance parameter is as follows：
A) three direction room temperature swept-sine vibration：Carried out using electric vibration experiment and tested, inertial navigation equipment, damper
System X is to resonant frequency 23.2Hz, amplification factor 4.36；Y-direction resonant frequency 29.4Hz, amplification factor 4.12；Z-direction resonant frequency
21.4Hz, amplification factor 4.72；Type testing is as shown in Figure 3；
B) X-direction high and low temperature swept-sine vibration：Carried out using electric vibration experiment and tested, inertial navigation equipment, vibration damping
Device system is under -40 DEG C of cryogenic conditions, resonant frequency 30.8Hz, resonance point amplification factor 2.56；In+55 DEG C of hot conditions
Under, resonant frequency 19.7Hz, resonance point amplification factor is 6.88Hz；Type testing curve is as shown in Figure 4；
C) Y-direction (inertial navigation equipment mounting surface normal direction) is impacted：Carried out using drop impact machine and tested, inertial navigation equipment, damper
System peak response 59.3g, is observed after experiment, and damper is intact, and surface does not have cracked or other damages；Type testing is bent
Line is as shown in Figure 5；
D) X is impacted to (inertial navigation equipment long axis direction)：Carried out using Pneumatic horizontal impact test system and tested, inertial navigation is set
Standby, damper system response acceleration average value is 31.8g, is observed after experiment, and damper is intact, surface do not have it is cracked or
Other damages.
Above description is explanation of the invention, is not the restriction to invention, limited range of the present invention is referring to right
It is required that in the case of the basic structure without prejudice to the present invention, the present invention can make any type of modification.
Claims (5)
1. a kind of inertial navigation equipment damper, it is characterised in that：It is described including upper iron piece (1), elastic element (2) and lower iron piece (3)
Elastic element is rubber element, and the rubber element includes upper and lower frustum and mediate cylindrical, on the upside of the upper iron piece (1) in
Centre opens up connection screw thread hole (11), and downside is wholely set the connection convex block (12) of clamping rubber element upper groove (21), described
Lower iron piece (3) includes the connecting groove (31) of frustum and connecting plate (32) under clamping rubber element, and connecting plate (32) surrounding opens up
Lower connection through-hole (33), the rubber element lower end opens up ball platform groove (22).
2. inertial navigation equipment damper according to claim 1, it is characterised in that：The upper iron piece (1) and lower iron piece (2) are equal
It is made of Q345 steel.
3. inertial navigation equipment damper according to claim 1, it is characterised in that：The rubber element formula presses mass fraction
Specifically ratio is：60 parts of 3L natural gums, 40 parts of cis-butadiene cement, 1.5 parts of sulphur, 5 parts of zinc oxide, 1 part of stearic acid, 1 part of CZ accelerating agents,
39 parts of N330 carbon blacks, 20 parts of dibutyl ester, 2 parts of 4010N anti-aging agents, 1 part of RD anti-aging agents, 1 part of paraffin, 22.5 parts of paraffin oil and chlorination
20 parts of butyl rubber.
4. inertial navigation equipment damper according to claim 2, it is characterised in that：The rubber element is using colloid using crowded
Pressure type sulfidization molding technological forming, curing temperature are 160 DEG C, sulfide stress 16MPa.
5. inertial navigation equipment damper according to claim 2, it is characterised in that：The hardness of the elastic element colloid is Shao
55 ° of family name, the tensile strength ＞ 16MPa of colloid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706688.9A CN108150603A (en) | 2017-08-17 | 2017-08-17 | A kind of inertial navigation equipment damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706688.9A CN108150603A (en) | 2017-08-17 | 2017-08-17 | A kind of inertial navigation equipment damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150603A true CN108150603A (en) | 2018-06-12 |
Family
ID=62468433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710706688.9A Pending CN108150603A (en) | 2017-08-17 | 2017-08-17 | A kind of inertial navigation equipment damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN108150603A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667883A (en) * | 2018-12-26 | 2019-04-23 | 长沙理工大学 | Rubber damping dissipative damping device |
| CN111692258A (en) * | 2020-05-18 | 2020-09-22 | 北京智天新航科技有限公司 | Shock-resistant rubber shock absorber |
| CN112483598A (en) * | 2020-10-27 | 2021-03-12 | 中国船舶重工集团公司第七0三研究所 | Large-displacement composite-rigidity conical column hybrid shock absorber of gas turbine generator set |
| WO2021208221A1 (en) * | 2020-04-17 | 2021-10-21 | 中国矿业大学 | Vibration damping system for inertial navigation integrated positioning device of boring machine and use method therefor |
| CN114321270A (en) * | 2021-11-30 | 2022-04-12 | 湖南航天机电设备与特种材料研究所 | Variable parameter rubber shock absorber for inertial measurement unit |
| WO2024067220A1 (en) * | 2022-09-27 | 2024-04-04 | 北京易控智驾科技有限公司 | Shock absorber, intelligent sensing device and carrier |
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| CN101333311A (en) * | 2008-07-27 | 2008-12-31 | 青岛茂林橡胶制品有限公司 | Rubber compositions for damping products for automobile and method for manufacturing same |
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| CN204494001U (en) * | 2015-01-14 | 2015-07-22 | 深圳市创世纪机械有限公司 | A kind of lathe anticreep damper mechanism |
| CN204785332U (en) * | 2015-02-15 | 2015-11-18 | 北京市长城机床附件有限责任公司 | Inflatable lathe damping parallels |
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| CN206129964U (en) * | 2016-10-21 | 2017-04-26 | 天津烯航石墨烯科技有限公司 | Shipping marine diesel engine unit rubber shock absorber for heat abstractor |
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| CN2752538Y (en) * | 2004-12-24 | 2006-01-18 | 中国船舶重工集团公司第七一一研究所 | Low-frequency large-loading rubber vibration isolator |
| CN101333311A (en) * | 2008-07-27 | 2008-12-31 | 青岛茂林橡胶制品有限公司 | Rubber compositions for damping products for automobile and method for manufacturing same |
| CN101975236A (en) * | 2010-10-21 | 2011-02-16 | 航天材料及工艺研究所 | Rubber buffering and vibration isolating elastomer structure |
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| CN204785332U (en) * | 2015-02-15 | 2015-11-18 | 北京市长城机床附件有限责任公司 | Inflatable lathe damping parallels |
| CN105754157A (en) * | 2016-04-13 | 2016-07-13 | 上海众力汽车部件有限公司 | Automobile chassis bush rubber composition |
| CN206129964U (en) * | 2016-10-21 | 2017-04-26 | 天津烯航石墨烯科技有限公司 | Shipping marine diesel engine unit rubber shock absorber for heat abstractor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667883A (en) * | 2018-12-26 | 2019-04-23 | 长沙理工大学 | Rubber damping dissipative damping device |
| WO2021208221A1 (en) * | 2020-04-17 | 2021-10-21 | 中国矿业大学 | Vibration damping system for inertial navigation integrated positioning device of boring machine and use method therefor |
| CN111692258A (en) * | 2020-05-18 | 2020-09-22 | 北京智天新航科技有限公司 | Shock-resistant rubber shock absorber |
| CN111692258B (en) * | 2020-05-18 | 2021-12-03 | 北京智天新航科技有限公司 | Shock-resistant rubber shock absorber |
| CN112483598A (en) * | 2020-10-27 | 2021-03-12 | 中国船舶重工集团公司第七0三研究所 | Large-displacement composite-rigidity conical column hybrid shock absorber of gas turbine generator set |
| CN114321270A (en) * | 2021-11-30 | 2022-04-12 | 湖南航天机电设备与特种材料研究所 | Variable parameter rubber shock absorber for inertial measurement unit |
| WO2024067220A1 (en) * | 2022-09-27 | 2024-04-04 | 北京易控智驾科技有限公司 | Shock absorber, intelligent sensing device and carrier |
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Application publication date: 20180612 |
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