CN106557619B - Band connection structure bearing capacity calculation method - Google Patents
Band connection structure bearing capacity calculation method Download PDFInfo
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- CN106557619B CN106557619B CN201610958078.3A CN201610958078A CN106557619B CN 106557619 B CN106557619 B CN 106557619B CN 201610958078 A CN201610958078 A CN 201610958078A CN 106557619 B CN106557619 B CN 106557619B
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- 238000004364 calculation method Methods 0.000 title claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 56
- 238000010168 coupling process Methods 0.000 claims abstract description 56
- 238000005859 coupling reaction Methods 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 56
- 238000005422 blasting Methods 0.000 claims abstract description 7
- 230000013011 mating Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 10
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
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- Evolutionary Computation (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The present invention provides a kind of calculation methods of the bearing capacity of band connection structure, wherein, the band connection structure includes: metal tape, blasting bolt and the multiple fixture blocks circumferentially distributed along interface, in assembly, by tightening blasting bolt, apply pretightning force in two metal tapes, and then radial pressure is generated to the fixture block of the circumferentially discrete distribution of lateral edge interface in metal tape, fixture block is set to clamp satellites coupling frame and adapter, constrain its axial relative movement, realize satellite and the rocket connection, the predictor method includes the following steps: step 1): calculating pretightning force and axial tension acts on lower satellites coupling frame deformation；Step 2): metal tape radial dilatation caused by satellites coupling frame deforms is calculated；Step 3): metal tape tensile force variation caused by metal tape is expanded is calculated；Step 4): the bearing capacity of band connection structure after the variation of metal tape tensile force is calculated.
Description
Technical field
The present invention relates to field of aerospace, are specifically related to the calculating of the kinetic parameter of satellite and the rocket connection and separating mechanism
Method.
Background technique
In space industry, each main carrier rocket in the world mostly uses band locking device as the satellite and the rocket and connects and separate
Mechanism.Unlock separation before, band connection structure should ensure that the strength and stiffness performance in satellite-rocket docking face meet requirement with
Realize that the satellite and the rocket are reliably connected.
Therefore, being computed correctly band connection structure bearing capacity is particularly important, and in the prior art, holds in estimation band
When loading capability, the deformation of each component in band connection structure is not considered, is regarded as rigid body, using the knowledge of rational mechanics, root
The ultimate tension that band can bear, the i.e. bearing capacity of band are calculated according to the stress balance of each component.
However, deformation can cause metal in fact, each component of band can deform under pretightning force and responsive to axial force
Variation with interior tensile force.Closely and, the variation of tensile force will affect the bearing capacity of band in metal tape.In other words, existing
The bearing capacity of band connection structure obtained from being calculated band as rigid body in technology and actual band carry energy
Power is not inconsistent, and there is no reliable methods to estimate or calculate band connection structure bearing capacity for the prior art.
Summary of the invention
Aspect, the present inventor propose packet of the invention at least one of in order to solve problems in the prior art
The bearing capacity calculation method of band connection structure.
The present invention provides a kind of calculation methods of the bearing capacity of band connection structure, wherein the band connection knot
Structure includes: metal tape, blasting bolt and the multiple fixture blocks circumferentially distributed along interface, in assembly, by tightening explosion spiral shell
Bolt applies pretightning force in two metal tapes, and then generates diameter to the fixture block of the circumferentially discrete distribution of lateral edge interface in metal tape
To pressure, fixture block is made to clamp satellites coupling frame and adapter, constrain its axial relative movement, realizes satellite and the rocket connection, it is described to estimate
Method includes the following steps:
Step 1): calculating pretightning force and axial tension acts on lower satellites coupling frame deformation；
Step 2): metal tape radial dilatation caused by satellites coupling frame deforms is calculated；
Step 3): metal tape tensile force variation caused by metal tape is expanded is calculated；
Step 4): the bearing capacity of band connection structure after the variation of metal tape tensile force is calculated.
Preferably, calculation method according to the present invention, wherein in step 1), the deformation packet of satellites coupling frame
It is inclined caused by satellites coupling frame to include pretightning force deflection distortion caused by satellites coupling frame and radial deformation and axial tension
Change shape and radial deformation.
Preferably, calculation method according to the present invention, wherein ignore the discrete distribution effect of fixture block in step 2)
It answers, the band connection structure under pretightning force and responsive to axial force is considered as axially symmetric structure.The radial dilatation of metal tape is by pre-tightening
Satellites coupling frame deflection distortion and radial deformation caused by power and axial tension determine jointly.
Preferably, calculation method according to the present invention, wherein will be based on elastic theory by metal tape in step 3)
The variable quantity of radius varitation calculating metal tape tensile force.
Preferably, calculation method according to the present invention, wherein the variation of metal tape tensile force is charged in step 4)
Amount, the bearing capacity based on the metal tape tension calculation band connection structure after change.
Provided method according to the present invention, for the bearing capacity of band connection structure calculated value accuracy significantly
Improve, be based on the calculated value, can accurate analysis bag band connection structure to the mechanical characteristic of satellite and the rocket system, to significantly improve
The design level of satellite and the rocket system and utilization are horizontal.
Detailed description of the invention
From later in conjunction with description of the attached drawing to embodiment, these and or other sides of exemplary embodiment of the present invention
Face and advantage will become obvious and be easier to understand, in the accompanying drawings:
Fig. 1 shows the schematic diagram of calculation method according to the present invention；
Fig. 2 shows the schematic diagrames of band connection structure；
Fig. 3 shows pretightning force and axial tension acts on the stress diagram of lower satellites coupling frame and fixture block；
Fig. 4 shows the deformation schematic diagram of satellites coupling frame under pretightning force independent role；
Fig. 5 shows the deformation schematic diagram of satellites coupling frame under pretightning force and axial tension collective effect；
Fig. 6, which shows responsive to axial force, causes satellites coupling frame to deflect the schematic diagram influenced on metal tape radial dilatation.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.Following ginsengs
It is intended to explain the present general inventive concept according to explanation of the attached drawing to embodiment of the present invention, and is not construed as to this
A kind of limitation of invention.
As shown in Figure 1, according to the present invention a kind of calculation method of the bearing capacity of band connection structure, wherein it is described
Band connection structure includes: that metal tape, blasting bolt and the multiple fixture blocks circumferentially distributed along interface pass through in assembly
Blasting bolt is tightened, applies pretightning force in two metal tapes, and then to the circumferentially discrete distribution of lateral edge interface in metal tape
Fixture block generates radial pressure, and fixture block is made to clamp satellites coupling frame and adapter, constrains its axial relative movement, realizes that the satellite and the rocket connect
It connects, the predictor method includes the following steps: step 1): calculating pretightning force and axial tension acts on lower satellites coupling frame deformation；
Step 2): metal tape radial dilatation caused by satellites coupling frame deforms is calculated；Step 3): metal caused by metal tape is expanded is calculated
Band tensile force changes；Step 4): the bearing capacity of band connection structure after the variation of metal tape tensile force is calculated.
In the case where not considering that each component of band deforms, the bearing capacity of band connection structure is by following formula
It obtains:
Wherein, TmFor axial tension suffered by satellites coupling frame, S0To prevent from occurring between fixture block and satellites coupling frame sliding relatively
Minimum pretightning force needed for dynamic, α are the fixture block angle of wedge, coefficient of friction of the μ between fixture block and satellites coupling frame, R0For satellites coupling frame master
The corresponding radius in face, R in shellbFor the corresponding radius in face in metal tape.
Provided method according to the present invention needs to consider to accurately calculate the bearing capacity of band connection structure
Caused by being deformed due to satellites coupling frame stress band connection structure deform influence, accordingly it is desirable to formula (1) into
Row improves.
As shown in Fig. 2, it illustrates the schematic diagrames of the band connection structure in the present invention.Wherein, appended drawing reference 1 indicates quick-fried
Fried bolt, appended drawing reference 2 indicate satellites coupling frame, and appended drawing reference 3 indicates adapter, and appended drawing reference 4 indicates metal tape, attached drawing mark
Note 5 indicates fixture block.
Fig. 3 show the stress diagram of satellites coupling frame and fixture block under pretightning force and axial tension collective effect.Wherein,
psPressure of the metal tape to fixture block on lower unit arc length, p are acted on for pretightning forcetFor pulling force suffered by satellites coupling frame in unit arc length,
qtAnd mtFor the tangential force and moment of flexure on unit arc length in column shell and flange ring section, fcBetween unit arc length interface frame, mating frame just
Pressure, fnAnd ffFor the normal direction contact force and frictional force in unit arc length between fixture block and interface frame, mating frame.rcFor the conjunction of upper and lower frames contact force
Radial distance of the point of force application away from flange ring outer rim, RfIt is half of flange ring at fixture block and interface frame, mating frame contact force point of resultant force
Diameter, R1For satellites coupling frame flange ring outer diameter, R2And R3Respectively satellites coupling frame cylindrical shell outer diameter and inner diameter.
When pretightning force independent role, the deflection distortion and radial deformation of satellites coupling frame are respectively
Wherein,E is satellites coupling frame elasticity
Modulus, A and IrFor interface frame, mating frame flange ring sectional area and rotary inertia,For flange ring mean radius, Δ R is face and method in column shell
The radial distance of blue ring outer rim, β are attenuation coefficient, tsFor thickness of shell, tfAt fixture block and interface frame, mating frame contact force point of resultant force
The thickness of flange ring.It is illustrated in figure 4 the deformation schematic diagram of satellites coupling frame radial section.
Under pretightning force and axial tension collective effect, the deflection distortion and radial deformation of satellites coupling frame are respectively
Wherein,ν is satellites coupling frame Poisson's ratio, TmFor axial tension, SmFor TmMake
Metal tape tensile force under.Axial tension is illustrated in figure 5 satellites coupling frame under pretightning force and axial tension collective effect
Deform schematic diagram.
As shown in fig. 6, comparison pretightning force independent role and pretightning force and satellites coupling frame under axial tension collective effect are inclined
The variation relation of corner, can obtain metal tape radial dilatation expression formula caused by being deflected by satellites coupling frame under responsive to axial force is
Metal tape radial dilatation expression formula caused by satellites coupling frame radial deformation is under responsive to axial force
In view of ψmAnd ψ0It is all that in a small amount, can obtain in formula (3) Above-mentioned expression formula is substituted into (3), and formula (3) is added with (4), axial tension can be obtained and caused
Metal tape amount of radial expansion expression formula
By metal tape amount of radial expansion expression formula, axial tension can be obtained and act on tensile force variable quantity in lower metal tape
By ψ in formula (1) and (2)0, u0, ψm, umExpression formula be written as follow form: And being substituted into formula (6), then axial tension acts on opens in lower metal tape
Clamp force changes expression formula
In formula, Kψ=2EbAb(R1-Rf)/RbSin2 α, Ku=EbAb/Rb。
Consider influence of the metal tape tensile force variation to band bearing capacity under responsive to axial force, energy is carried to traditional band
Power calculation formula improves, and obtains
Metal tape tensile force variable quantity expression formula (7) is substituted into formula (8), improved band bearing capacity can be obtained and calculate
Formula, the formula have higher precision.
While embodiments of the present invention have been shown and described, however those skilled in the art will be seen that, not
Variation can be made to the embodiment in the case where being detached from the principle of the present invention and marrow, protection scope of the present invention is limited to
In claim and its equivalent.
Claims (1)
1. a kind of calculation method of the bearing capacity of band connection structure, wherein the band connection structure include: metal tape,
Blasting bolt and the multiple fixture blocks circumferentially distributed along interface, in assembly, by tightening blasting bolt, in two metal tapes
Interior application pretightning force, and then radial pressure is generated to the fixture block of the circumferentially discrete distribution of lateral edge interface in metal tape, press from both sides fixture block
Tight satellites coupling frame and adapter, constrain its axial relative movement, realize satellite and the rocket connection,
The calculation method includes the following steps:
Step 1): calculating pretightning force and axial tension acts on lower satellites coupling frame deformation；
Step 2): metal tape radial dilatation caused by satellites coupling frame deforms is calculated；
Step 3): metal tape tensile force variation caused by metal tape is expanded is calculated；
Step 4): calculating the bearing capacity of band connection structure after the variation of metal tape tensile force,
Wherein, in step 1), the deformation of satellites coupling frame includes pretightning force deflection distortion caused by satellites coupling frame and diameter
To deformation and axial tension deflection distortion caused by satellites coupling frame and radial deformation,
Wherein, when pretightning force independent role, the deflection distortion ψ of satellites coupling frame0With radial deformation u0It is respectively as follows:
Under pretightning force and axial tension collective effect, the deflection distortion ψ of satellites coupling framemWith radial deformation umIt is respectively as follows:
Wherein,
TmFor axial tension suffered by satellites coupling frame, S0To prevent needed for occurring opposite sliding between fixture block and satellites coupling frame most
Small pretightning force, α are the fixture block angle of wedge, coefficient of friction of the μ between fixture block and satellites coupling frame, R0To be faced in satellites coupling frame column shell
The radius answered, RbFor the corresponding radius in face in metal tape, RfIt is half of flange ring at fixture block and interface frame, mating frame contact force point of resultant force
Diameter, R1For satellites coupling frame flange ring outer diameter, E is satellites coupling frame elasticity modulus, A and IrRespectively satellites coupling frame flange ring
Sectional area and rotary inertia,For the flange ring mean radius, Δ R is the diameter in face and flange ring outer rim in satellites coupling frame column shell
To distance, β is attenuation coefficient, tsFor the thickness of shell of satellites coupling frame column shell, tfFor fixture block and satellites coupling frame contact force resultant force
The thickness of flange ring at position, ν are satellites coupling frame Poisson's ratio, SmFor TmMetal tape tensile force under effect；
Wherein, the discrete Distribution Effect that fixture block is ignored in step 2), by the band connection structure under pretightning force and responsive to axial force
It is considered as axially symmetric structure, the radial dilatation of metal tape satellites coupling frame deflection distortion and diameter as caused by pretightning force and axial tension
It is determined to deformation is common；
Wherein, metal tape amount of radial expansion Δ R caused by axial tensionbExpression formula are as follows:
Wherein, the variable quantity of metal tape tensile force will be calculated in step 3) by metal tape radius varitation based on elastic theory；
Wherein, by ψ in above formula0, u0, ψm, umExpression formula be written respectively as following form: It obtains axial tension and acts on tensile force in lower metal tape
Changes delta SmExpression formula are as follows:
Wherein, Kψ=2EbAb(R1-Rf)/RbSin 2 α, Ku=EbAb/Rb,
Wherein, metal tape tensile force variable quantity is charged in step 4), based on the metal tape tension calculation band connection after change
The bearing capacity of structure；
Obtain band bearing capacity calculation formula are as follows:
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610915187 | 2016-10-20 | ||
| CN2016109151877 | 2016-10-20 |
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| CN106557619A CN106557619A (en) | 2017-04-05 |
| CN106557619B true CN106557619B (en) | 2019-06-11 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111619831B (en) * | 2020-04-29 | 2021-11-16 | 航天东方红卫星有限公司 | Connecting rod type satellite-rocket separation mechanism |
| CN117208237B (en) * | 2023-10-12 | 2024-02-09 | 大连理工大学 | Installation and adjustment method, device and system for satellite and rocket unlocking separation wrapping tape |
| CN117663899A (en) * | 2023-12-29 | 2024-03-08 | 北京天兵科技有限公司 | Connector capable of falling off rapidly and automatically, design method and rocket launching system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104834795A (en) * | 2015-05-27 | 2015-08-12 | 清华大学 | Belting connection structure contact friction nonlinear feature simulation method and system |
| CN105302949A (en) * | 2015-10-19 | 2016-02-03 | 清华大学 | Method for analyzing and calculating frictional damping characteristic of clamp band connection structure |
-
2016
- 2016-10-27 CN CN201610958078.3A patent/CN106557619B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104834795A (en) * | 2015-05-27 | 2015-08-12 | 清华大学 | Belting connection structure contact friction nonlinear feature simulation method and system |
| CN105302949A (en) * | 2015-10-19 | 2016-02-03 | 清华大学 | Method for analyzing and calculating frictional damping characteristic of clamp band connection structure |
Non-Patent Citations (5)
| Title |
|---|
| Hysteresis modeling of clamp band joint with macro-slip;Zhaoye Qin 等;《Mechanical Systems and Signal Processing》;20150516;第89-110页 |
| 包带式星箭连接结构轴向刚度研究;秦朝烨 等;《宇航学报》;20090930;第30卷(第5期);第2080-2085页 |
| 包带连接力学分析与建模;白绍竣 等;《上海航天》;20111231;第28卷(第6期);第43-48页 |
| 包带连接特性及星-箭-包带连接结构耦合动力学的研究进展;秦朝烨 等;《力学进展》;20120725;第42卷(第4期);第437-444页 |
| 轴向激励作用下包带连接结构接触摩擦特性研究;秦朝烨 等;《第十三届全国非线性振动暨第十届全国非线性动力学和运动稳定性学术会议摘要集》;20110325;第1-7页 |
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