CN107253337A - A kind of blasting bolt box and preparation method thereof - Google Patents
A kind of blasting bolt box and preparation method thereof Download PDFInfo
- Publication number
- CN107253337A CN107253337A CN201710703074.5A CN201710703074A CN107253337A CN 107253337 A CN107253337 A CN 107253337A CN 201710703074 A CN201710703074 A CN 201710703074A CN 107253337 A CN107253337 A CN 107253337A
- Authority
- CN
- China
- Prior art keywords
- plate
- valve
- blasting bolt
- bolt box
- hole
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
- F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
Abstract
A kind of blasting bolt box and preparation method thereof, it is related to bolt box and preparation method thereof, it is poor the invention aims to solve existing blasting bolt load endurance, intensity is not high, brisance easily causes pollution, the problem of being difficult to control to, blasting bolt box backboard both sides are provided with two quick-fried and fried bolt box side plates；Top plate is provided with the top of blasting bolt box backboard and two blasting bolt box swash plates, backboard center offers lightening hole, and provided with several screws or rivet through hole；Preparation method：Prepreg is laid on point valve surface；A point valve is put into locating slot, the remaining covering of laying；Matched moulds；Heating, solidification；Cooling, the demoulding；Machining.The present invention is applied to aerospace field.
Description
Technical field
The present invention relates to bolt box and preparation method thereof.
Background technology
Blasting bolt is a kind of Fire load for being applied to spacecraft earliest, and its structure is main by the body of bolt and nut group
Into.Blasting bolt is as a connector, and the realization of its linkage function and the connected mode of plain bolt or stud are closely similar,
Two targets can be connected as a single entity by tightening nut or the body of bolt.On the outer wall of body of bolt coyote hole, there is one week " v " shape
Groove, forms the link of a strength weak in the structure of the body of bolt.When two connectors will be to be separated, main charge burning,
Pressure in coyote hole is raised suddenly, is reached after certain numerical value, the fracture of V-shaped groove position, and in the presence of gunpowder thrust, two are connected
The object separation connect, its bearing capacity is mainly completed by the corresponding blasting bolt box of blasting bolt：Secondary structure will be drawn
Power loads on blasting bolt, and drag load is transferred to the illiteracy of barrel shell section in upper level structure by blasting bolt by blasting bolt box again
Pi Shang.
Bang path of the above-mentioned drag load in above-mentioned blasting bolt box is divided into two：A portion pulling force passes through quick-fried
Fried bolt box structure is overall, and small size rigid body sliding axially occurs along rocket body, and attachment screw is transferred to via backboard by bolt box plate
Or in rivet.This part pulling force makes attachment screw or rivet occur detrusion, due to the sliding of structure rigid body, therefore each link
Shearing force produced by bolt is essentially identical.Malformation of another part pulling force by blasting bolt box in itself, by bolt box
Bottom plate is transferred in the attachment screw on backboard or rivet by floor.This part pulling force stretches attachment screw or rivet
Deformation, and the floor of traditional blasting bolt box designs and the link screw of diverse location or the pulling force of rivet is differed greatly：Lean on
The screw or rivet pulling force of nearly backboard end are far above the screw or rivet of base plate vicinity.The pulling force transmitted due to the second paths
Account for the major part of total pulling force load, therefore traditional blasting bolt box is limited to the utilization ratio of attachment screw or rivet, often spiral shell
Bolt box backboard end cancellous screw or rivet have failed, and the screw of base plate vicinity or rivet not yet plastic deformation.It is how effectively real
The ability to bear of existing blasting bolt box, and make its lightweight as far as possible, it is current problem.
Blasting bolt is simple in construction, reliable operation, with larger energy-mass ratio, meanwhile, with small volume, operation
Easy to use the characteristics of.But because it is separation that connector is realized by the fracture of metal shell, therefore, impact during separation
It is very big, it is difficult to realize the accurate control of separating force, and fragment and pollutant generation have been also tended to when unlocking separation, this is right
There may be adverse effect for spacecraft.Therefore, with the development of space technology and increasingly carrying to spacecraft security requirement
Height, blasting bolt is independently fewer and fewer in spaceborne application with separator as connection.
In addition, explosion product is enclosed in box intracavitary by existing blasting bolt box, used in the occasion of pollution need to be controlled, with point
From it is simple in construction, assembling and it is easy to use the features such as.If blasting bolt box is destroyed under transient pressure and percussion,
Box is interior or box body component flies out, and percussion device or instrument may influence the safety of aircraft.It is badly in need of a kind of effective blasting bolt
Box solves the above problems.
Existing blasting bolt, is used for Mulit-point Connection parting surface.Each blasting bolt likeness in form plain bolt, inside is equipped with fried
Medicine and igniter.During separation, explosive is detonated, and shearing lock is cut or is weakened groove along bolt and is disconnected, realizes two chorista solutions
Lock.Blasting bolt is wide in variety, mainly there is open flume type, shearing pin, steel-ball type blasting bolt and pollution-free blasting bolt etc..It is this
The advantage of device is large carrying capacity, simple in construction, reliable operation, easy to use.Weak point is to generally require multiple bolts,
Ensure that whole bolts are simultaneously switched off difficult larger.Also to ensure that remains do not injure the structure of surrounding and set when bolt disconnects in addition
It is standby, therefore protection structure should be correspondingly set if necessary.
The content of the invention
Poor the invention aims to solve existing blasting bolt load endurance, intensity is not high, and brisance is easy
Pollute, it is difficult to the problem of controlling, and there is provided a kind of blasting bolt box and preparation method thereof.
A kind of blasting bolt box of the present invention, it is by top plate, blasting bolt box backboard, two blasting bolt box swash plate structures
Into；Blasting bolt box backboard both sides are provided with two blasting bolt box side plates；Blasting bolt box backboard and two blasting bolt boxes
Top plate is provided with the top of swash plate；Described top plate center offers blasting bolt connecting hole；Described blasting bolt box backboard
Center offers lightening hole；
The vertical portion of described blasting bolt box backboard is 160 °, bending part with the angle а that bending part is formed
Angle beta with top plate formation is 110 °；
Several screws or rivet through hole are offered on described blasting bolt box backboard.
A kind of preparation method of blasting bolt box of the present invention, it is prepared using blasting bolt box mould, tool
Body step is as follows：
First, according to laying angle needed for preparing blasting bolt box and prepreg consumption, respectively in point valve, the small point of and of valve one greatly
The working face of small point of valve two lays prepreg；
2nd, point valve, small point of valve one and the small point of valve two greatly of prepreg will have been laid, 3 positioning of lower plate are respectively placed at
In groove one；
3rd, on the basis of the prepreg that the big point of valve, small point of valve one and the small point of working face of valve two of step one are laid, by blast
Laying angle needed for bolt box and prepreg consumption, and thickness requirement, continue to lay prepreg；
4th, matched moulds
A, left plate and right plate lower end be placed in the both sides locating slot two of lower plate, by being arranged on left plate and right side
Screw hole in the screwing through hole and lower plate both sides locating slot two of plate bottom, using bolt respectively by left plate and right plate with
Lower plate is fixed；
B, front side board and back side panel be placed in lower plate, the lower surface of front side board and back side panel is fitted the upper of lower plate
Surface；Front side board and back side panel inner surface are fitted left plate and the end face of right plate both sides, and use screw or rivet, are passed through
The screw or rivet through hole for being arranged on front side board and back side panel rear and front end are fixed；
C, left plate and right plate upper end be placed in the locating slot two of upper plate both sides respectively, by be arranged on left plate and
Screw hole in the screwing through hole and upper plate both sides locating slot two on right plate top, using bolt respectively by left plate and right side
Plate is fixed with upper plate；
D, screw or rivet through hole by being arranged on upper plate and lower plate left and right ends, with screw or rivet by upper plate and under
Plate is (fixed；
5th, the good mould of step 4 matched moulds is put into curing oven and is heated, solidified；
6th, it is stripped；
7th, the testpieces after the demoulding is machined, opens up blasting bolt connecting hole, lightening hole and screw or riveting
Follow closely through hole；
Described blasting bolt box mould includes lower plate, divides valve, small point of valve one, small point of valve two, left plate, right side greatly
Plate, front side board, back side panel and upper plate；Wherein, lower plate upper surface offers 3 locating slots one, and the both sides of upper plate and lower plate are opened
Provided with locating slot two；
Point valve, small point of valve one, small point of valve two are rectangular parallelepiped structure greatly；And divide valve, small point of valve one and small point of valve two greatly
Length and height all same, small point of valve one are identical with the width of small point of valve two；
The side and small point of valve one side corresponding with point valve greatly of big point of valve are provided with right angled triangle sloping platform；Institute
The short side for the right angled triangle sloping platform stated is located at the rear side of big point of valve and small point of valve one, and short side distance point valve greatly or small point respectively
The upper surface beeline of valve one is 8~10mm；
Point valve, small point of valve one and the small point of bottom of valve two are provided with the projection that shape matches with locating slot one greatly；
The length of locating slot two and the identical length of left plate, right plate are same；On left plate and right plate interior side-wall surface
Boss is respectively arranged with, the length of boss is consistent with the length of locating slot two, width and front side board, the height of back side panel of boss
It is consistent；
Distance of two locating slots one in outside respectively away from lower plate edge is identical with projection width in three locating slots one；Often
Distance is 1.5 times of one width of locating slot between individual locating slot one；
Described point valve, small point of valve one greatly is bent downwards with the small point of top front end of valve two；Wherein, the horizontal end face on top with
The angle а that bending end face is formed is 160 °, and bending end face and the angle beta of anterior vertical plane formation are 110 °；
The upper and lower part of left plate and right plate offers multiple screwing through hole, and locating slot two and screwing through hole phase
Corresponding position offers screw hole, and left plate and right plate pass through on screw respectively fixed and locating slot two；
The inner surface of front side board and back side panel fits in the end face of left plate and right plate both sides respectively, and front side board is with after
The lower surface of side plate is fitted with the upper surface of lower plate respectively；The front-end and back-end of front side board and back side panel offer screw or riveting
Follow closely through hole；Front side board is fixedly connected with back side panel by screw or rivet through hole；
The left and right ends of upper plate and lower plate offer screw or rivet through hole, and fix company by screw or rivet through hole
Connect.
The present invention includes following beneficial effect：
The blasting bolt box that the present invention is designed is in 150000N pulling force finite element load tests, blasting bolt of the invention
Box has good bearing capacity, under this pulling force, and bolt hole can not carry larger stress.
The present invention prepares blasting bolt box using carbon fibre material, is compared with Al-alloy parts, weight have dropped 14.5%.
The present invention is efficiently solved during preparing blasting bolt box, easily gone out by designing the mould of blasting bolt box
It is uneven in the blasting bolt box hand now prepared, the problem of preparing complicated.
The present invention by setting the angle and prepreg consumption of backboard, and backboard, top plate and swash plate thickness, and the back of the body
The angle of plate and top plate is set so that the blasting bolt box prepared using carbon fiber has very high bearing capacity.
Brief description of the drawings
Fig. 1 is blasting bolt box structural representation；
Fig. 2 is Fig. 1 front view；
Fig. 3 is Fig. 1 top view；
Fig. 4 is Fig. 1 rearview；
Fig. 5 is Fig. 1 upward view；
Fig. 6 is Fig. 1 side view；
Fig. 7 is blasting bolt box mould structure schematic diagram；
Fig. 8 is the small point of structural representation of valve one；
Fig. 9 and Figure 10 are the structural blast bolt box mould schematic diagram in the working face lay prepreg of size point valve；
Figure 11, Figure 12 and Figure 13 are a point valve positioning schematic diagram；
Figure 14 and Figure 15 is remaining cover portion (black portions) schematic diagram of lay；
Figure 16 is schematic diagram after installation left and right side plate；
Figure 17 is schematic diagram after the forward and backward side plate of installation；
Figure 18 is schematic diagram after installation upper plate；
Figure 19 is testpieces (blasting bolt box) photo after machined；
Figure 20 is rigid boundary experimental rig figure, wherein, 1 is testpieces, and 2 be hydraulic cylinder (maximum 20 tons), and 3 be that pulling force is passed
Sensor, 4 be displacement transducer, and 5 be strain chip test system；
Figure 21 is strain measurement point diagram；
Figure 22 is aluminum alloy test part strain testing curve map；Wherein, A to H corresponds to 1~8# measurement points respectively；
Figure 23 is aluminum alloy test part and carbon fiber testpieces displacement measurement curve map；Wherein, A is carbon fiber testpieces position
Test curve is moved, B is aluminum alloy test part displacement measurement curve；
Figure 24 is testpieces photo after first time tension test (slab is cracking)；
Figure 25 is second of tension test photo after improvement Lay up design；
Figure 26 is rigid boundary condition's experimental provision structural representation；Wherein, 1 is that, to connecting bolt, 2 is install frock additional, and 3 are
Pad, 4 be testpieces, and 5 be fixing bolt, and 6 be fixing seat, and F is power, and the direction of arrow is power thrusts；
Figure 27 for etc. rigidity boundary condition experimental rig；Wherein, 1 is installs frock additional, and 2 be loading bolt, and 3 be testpieces, 4
For fixing seat, F is power, and the direction of arrow is power thrusts；
Figure 28 is global finite element illustraton of model；
Figure 29 is X to maximum displacement distribution map；
Figure 30 is Y-direction maximum displacement distribution map；
Figure 31 is Z-direction maximum displacement distribution map；
Figure 32 is combination maximum displacement distribution map；
Figure 33 is that maximum stress checks Distribution value figure；
Figure 34 is that maximum stress checks Distribution value figure；
Figure 35 is X to stress envelope；
Figure 36 is Y-direction stress envelope；
Figure 37 is YZ to stress envelope；
Figure 38 is XZ to stress envelope.
Embodiment
Embodiment one：A kind of blasting bolt box of present embodiment, it by top plate 1, blasting bolt box backboard 2,
Two blasting bolt box swash plates 3 are constituted；The both sides of blasting bolt box backboard 2 are provided with two blasting bolt box side plates 3；Blasting bolt
The top of box backboard 2 and two blasting bolt box swash plates 3 is provided with top plate 1；The described center of top plate 1 offers blasting bolt company
Connect hole 4；The described center of blasting bolt box backboard 2 offers lightening hole 5；
The vertical portion of described blasting bolt box backboard 2 is 160 °, bending part with the angle а that bending part is formed
Angle beta with the formation of top plate 1 is 110 °；
Several screws or rivet through hole 6 are offered on described blasting bolt box backboard 2.
Embodiment two：Present embodiment from unlike embodiment one：The described blasting bolt box back of the body
The thickness of plate 2 is 13mm；The thickness of blasting bolt box swash plate 3 is 9mm；The thickness of top plate 1 is 30mm.Other and embodiment one
It is identical.
Embodiment three：Present embodiment from unlike embodiment one：Blasting bolt box is to use carbon
What fiber or aluminium alloy were made.It is other identical with embodiment one.
Embodiment four：A kind of preparation method of blasting bolt box of present embodiment, it is to use blasting bolt
Prepared by box mould, comprise the following steps that：
First, according to laying angle needed for preparing blasting bolt box and prepreg consumption, respectively in point valve 7, small point of valve 1 greatly
Prepreg is laid with the working face of small point of valve 2 12；
2nd, point valve 7, small point of valve 1 and the small point of valve 2 12 greatly of prepreg will have been laid, 3 of lower plate 2 are respectively placed at
In locating slot 1；
3rd, on the basis of the prepreg that the big point of valve 7, small point of valve 1 and the small point of working face of valve 2 12 of step one are laid, press
Laying angle needed for blasting bolt box and prepreg consumption, and thickness requirement, continue to lay prepreg；
4th, matched moulds
A, left plate 3 and the lower end of right plate 4 be placed in the both sides locating slot 2 10 of lower plate 2, by being arranged on left plate 3
With the screw hole 14 in the screwing through hole 13 and the both sides locating slot 2 10 of lower plate 2 of the bottom of right plate 4, using bolt respectively by a left side
Side plate 3 and right plate 4 are fixed with lower plate 2；
B, front side board 5 and back side panel 6 be placed in lower plate 2, front side board 5 and the lower surface of back side panel 6 is fitted down
The upper surface of plate 2；Front side board 5 and the inner surface of back side panel 6 are fitted left plate 3 and the end face of the both sides of right plate 4, and use screw
Or rivet, fixed by the screw or rivet through hole 15 that are arranged on front side board 5 and the rear and front end of back side panel 6；
C, left plate 3 and the upper end of right plate 4 be placed in the locating slot 2 10 of the both sides of upper plate 1 respectively, by being arranged on a left side
Screw hole 14 in the both sides locating slot 2 10 of screwing through hole 13 and upper plate 1 on side plate 3 and the top of right plate 4, using bolt point
Left plate 3 and right plate 4 are not fixed with upper plate 1；
D, screw or rivet through hole 16 by being arranged on upper plate 1 and the left and right ends of lower plate 2, with screw or rivet by upper plate
1 and lower plate 2 fix；
5th, the good mould of step 4 matched moulds is put into curing oven and is heated, solidified；
6th, it is stripped；
7th, the testpieces after the demoulding is machined, opens up blasting bolt connecting hole, lightening hole and screw or riveting
Follow closely through hole；
Described blasting bolt box mould includes lower plate 2, greatly point valve 7, small point of valve 1, small point of valve 2 12, left plate
3rd, right plate 4, front side board 5, back side panel 6 and upper plate 1；Wherein, the upper surface of lower plate 2 offers 3 locating slots 1, and upper plate 1 is with
The both sides of plate 2 offer locating slot 2 10；
Point valve 7, small point of valve 1, small point of valve 2 12 are rectangular parallelepiped structure greatly；And big point of valve 7, small point of valve 1 and small point
The length and height all same of valve 2 12, small point of valve 1 are identical with the width of small point of valve 2 12；
The side and small point of valve 1 side corresponding with point valve 7 greatly of big point of valve 7 are provided with right angled triangle sloping platform
17；The short side of described right angled triangle sloping platform 17 is located at the rear side of big point of valve 7 and small point of valve 1 respectively, and short side distance is big
The upper surface beeline for dividing valve 7 or small point of valve 1 is 8~10mm；
Point valve 7, small point of valve 1 and the small point of bottom of valve 2 12 are provided with the projection that shape matches with locating slot one greatly
13；
The length of locating slot 2 10 and the identical length of left plate 3, right plate 4 are same；Left plate 3 and the madial wall of right plate 4
Boss 11 is respectively arranged with surface, the length of boss 11 is consistent with the length of locating slot 2 10, the width of boss 11 and front side
Plate 5, back side panel 6 height it is consistent；
Distance and boss 11 width phase of two locating slots 1 in outside respectively away from the edge of lower plate 2 in three locating slots 1
Together；Distance is 1.5 times of one 9 width of locating slot between each locating slot 1；
Described point valve 7, small point of valve 1 greatly is bent downwards with the small point of top front end of valve 2 12；Wherein, the horizontal ends on top
The angle а that face is formed with bending end face is 160 °, and bending end face and the angle beta of anterior vertical plane formation are 110 °；
The upper and lower part of left plate 3 and right plate 4 offers multiple screwing through hole 13, and locating slot 2 10 and screw
The corresponding position of through hole 13 offers screw hole 14, and left plate 3 and right plate 4 are fixed and locating slot 2 10 respectively by screw
On；
The inner surface of front side board 5 and back side panel 6 fits in the end face of left plate 3 and the both sides of right plate 4, and front side board respectively
5 and upper surface of the lower surface respectively with lower plate 2 of back side panel 6 fit；The front-end and back-end of front side board 5 and back side panel 6 are opened up
There are screw or rivet through hole 15；Front side board 5 is fixedly connected with back side panel 6 by screw or rivet through hole 15；
The left and right ends of upper plate 1 and lower plate 2 offer screw or rivet through hole 16, and pass through screw or rivet through hole 16
It is fixedly connected.
Embodiment five：Present embodiment from unlike embodiment four：Described laying angle and pre-
Leaching material consumption is referred specifically to：
The angle and prepreg consumption condition of blasting bolt box backboard are as follows：90°：45°：- 45 °=50%：25%：
25%；
The angle and prepreg consumption condition of blasting bolt box swash plate are as follows：90°：45°：- 45 °=50%：25%：
25%；
The angle and prepreg consumption condition of blasting bolt box top plate are as follows：0°：90°：45°：- 45 °=25%：25%：
25%：25%.
It is other identical with embodiment four.
Embodiment six：Present embodiment from unlike embodiment four：Described laying angle and pre-
Leaching material consumption is referred specifically to：
The angle and prepreg consumption condition of blasting bolt box backboard are as follows：90°：45°：- 45 °=50%：25%：
25%；
The angle and prepreg consumption condition of blasting bolt box swash plate are as follows：90°：45°：- 45 °=80%：10%：
10%；
The angle and prepreg consumption condition of blasting bolt box top plate are as follows：0°：90°：45°：- 45 °=25%：25%：
25%：25%.
It is other identical with embodiment four.
Embodiment seven：Present embodiment from unlike embodiment four：Described thickness refers to composite wood
Expect the thickness of the backboard, swash plate and top plate of blasting bolt box, respectively 13mm, 9mm and 30mm.Other and embodiment four
It is identical.
Embodiment eight：Present embodiment from unlike embodiment four：Described prepreg is that carbon is fine
Tie up prepreg or aluminium alloy prepreg.It is other identical with embodiment four.
Embodiment nine：Present embodiment from unlike embodiment four：Before starting to lay prepreg,
In the working face of point valve 7, small point of valve 1 and small point of valve 2 12 greatly, and the surface of right angled triangle sloping platform 17 coating releasing agent.Its
It is identical with embodiment four.
Present invention is not limited only to the content of the respective embodiments described above, the group of one of them or several embodiments
Contract sample can also realize the purpose of invention.
Beneficial effects of the present invention are verified by following examples：
Embodiment 1
1st, blasting bolt box structure
Composite blasting bolt box (see Fig. 1 to Fig. 6) high 200mm, wide 170mm of the present embodiment, by top plate 1, blast
Bolt box backboard 2, two blasting bolt box swash plates 3 are constituted；The both sides of blasting bolt box backboard 2 are provided with two quick-fried and fried bolt boxes
Side plate 3；The top of blasting bolt box backboard 2 and two blasting bolt box swash plates 3 is provided with top plate 1；Open at the described center of top plate 1
Provided with blasting bolt connecting hole 4；The described center of blasting bolt box backboard 2 offers lightening hole 5；
The vertical portion of described blasting bolt box backboard 2 is 160 °, bending part with the angle а that bending part is formed
Angle beta with the formation of top plate 1 is 110 °；
Several screws or rivet through hole 6 are offered on described blasting bolt box backboard 2.
The blasting bolt box of the present embodiment can be prepared by aluminium alloy or carbon fiber.
2nd, blasting bolt box testpieces (hereinafter referred to as testpieces) mould is designed
According to blasting bolt box shaped, blasting bolt box testpieces mould is using a point lobed formula.Mould is overall
Including lower plate 2, greatly point valve 7, small point of valve 1, small point of valve 2 12, left plate 3, right plate 4, front side board 5, back side panel 6 and upper plate
1；Wherein, the upper surface of lower plate 2 offers 3 locating slots 1, and the both sides of upper plate 1 and lower plate 2 offer locating slot 2 10；Into
The form schematic diagram of pattern tool is as shown in Figure 7 and Figure 8.
The upper surface of mould lower plate 2 offers 3 locating slots 1, for positioning point valve 7, small point of valve 1 and small point greatly
Valve 2 12；Upper plate 1 and lower plate 2 each side drive a locating slot 2 10, for position left plate 3, right plate 4 and upper plate 1,
The position relationship of lower plate 2；1/2 thickness is left to swash plate 3 in point side of valve 7 and small point of valve 1 and the small point of single side of valve 2 12 greatly
Degree, to ensure the thickness of swash plate 3；Pass through above positioning relation, it is ensured that position, thickness and the testpieces of testpieces swash plate 3
The size of left and right directions.
After left plate 3, right plate 4 and upper plate 1, lower plate 2 are positioned, front side board 5 and back side panel 6 are just positioned, so can be with
The size of guarantee test part fore-and-aft direction；Meanwhile, the thickness of boss 11 and front side board 5 and the back side panel 6 of left plate 3 and right plate 4
Height be consistent, for the size of location test part above-below direction.
3rd, blasting bolt box testpieces Lay up design
According to the stressing conditions and Finite element analysis results to each position of blasting bolt box, optimization design blasting bolt box
The carbon fiber laying angle and consumption (being shown in Table 1) of backboard, top plate and two swash plate each several parts.
The blasting bolt box carbon fiber laying angle of table 1 and use scale
| Region | Laying (°) |
| Backboard 13mm | 90°：45°：- 45 °=50%：25%：25% |
| Swash plate 9mm | 90°：45°：- 45 °=50%：25%：25% |
| Top plate 30mm | 0°：90°：45°：- 45 °=25%：25%：25%：25% |
4th, prepared by testpieces
First, according to the laying angle as needed for blasting bolt box in table 1 and prepreg consumption, respectively in point valve 7, small point of valve greatly
1 and the working face of small point of valve 2 12 first lay one layer of prepreg；Due to dividing valve 7, small point of valve 1 and the small point of side of valve 2 12 greatly
There is the structure of right angled triangle sloping platform 17, after three is grouped together, in point valve 7 greatly and small point of valve 1, small point of valve 2 12
Between there is space, prepreg is mainly filled this space by this step, prepares the swash plate 3 of blasting bolt box, and pre- laying
Working face when leaching material in point valve 7, small point of valve 1 and small point of valve 2 12 greatly can lay a thin layer of prepreg, still
This prepreg can not reach the thickness requirement of the dorsulum of table 1 and top plate, in addition it is also necessary in step 3 continue lay prepreg with
Reach the thickness requirement of the dorsulum of table 1 and top plate；(as shown in Figure 9)
2nd, point valve 7, small point of valve 1 and the small point of valve 2 12 greatly of prepreg will have been laid, 3 of lower plate 2 are respectively placed at
In locating slot 1；(as shown in Figure 10)
3rd, after previous step says that each point of valve is installed in locating slot 1, valve 7, small point of valve 1 and small point of valve 2 12 are divided greatly
It is just fixed each other, so that the prepreg being filled in three space is also just fixed, the preliminary swash plate 3 for completing blasting bolt box
Preparation, next laid in point valve 7, small point of valve 1 and a small point of valve 2 12 greatly on the working face of a thin layer of prepreg,
Continuation integrally lays remaining preimpregnation according to the laying angle as needed for blasting bolt box in table 1 and prepreg consumption, and thickness
Expect (cover portion) so that the prepreg thickness of backboard and top plate after laying, which is reached in table 1, to be required, and the thickness of swash plate, by
Set in the thickness of prior right angled triangle sloping platform 17, therefore after filling prepreg, the swash plate thickness of preparation is also full
The requirement of sufficient table 1；(as shown in figure 11)
4th, matched moulds
A, by left plate 3 and the opsition dependent relation of right plate 4, left plate 3 will be installed and the lower end of right plate 4 is placed at lower plate 2
Both sides locating slot 2 10 in, it is fixed by the screwing through hole 13 and the both sides of lower plate 2 that are arranged on left plate 3 and the bottom of right plate 4
Screw hole 14 in the groove 2 10 of position, is respectively fixed left plate 3 and right plate 4 with lower plate 2 using bolt；(as shown in figure 12)
B, by front side board 5 and the opsition dependent relation of back side panel 6, be placed in lower plate 2, make the following table of front side board 5 and back side panel 6
Face is fitted the upper surface of lower plate 2；Front side board 5 and the inner surface of back side panel 6 are close to the end for closing left plate 3 and the both sides of right plate 4
Face, and fixed by the screw or rivet through hole 15 for being arranged on front side board 5 and the rear and front end of back side panel 6；(as shown in figure 13)
C, opsition dependent relation install upper plate 1, and left plate 3 and the upper end of right plate 4 are placed in the locating slot of the both sides of upper plate 1 respectively
In 2 10, by being arranged in the screwing through hole 13 and the both sides locating slot 2 10 of upper plate 1 of left plate 3 and the top of right plate 4
Screw hole 14, is respectively fixed left plate 3 and right plate 4 with upper plate 1 using bolt；(as shown in figure 14)
D, screw or rivet through hole 16 by being arranged on upper plate 1 and the left and right ends of lower plate 2, with screw or rivet by upper plate
1 and lower plate 2 fix；
5th, the good mould of step 4 matched moulds is put into curing oven and is heated, solidified；
6th, it is stripped；
7th, the testpieces after the demoulding is machined, opens up blasting bolt connecting hole, lightening hole and screw or riveting
Follow closely through hole；(as shown in figure 15).
First, finite element model analysis (analogue simulation) is carried out to the blasting bolt box of above-mentioned preparation, by sunykatuib analysis,
It is preliminary to judge prepared blasting bolt box performance, and answered improvements.Then further verified by stretching bearing test,
The performance of blasting bolt box.
5th, testpieces finite element model analysis
According to blasting bolt box digital-to-analogue, the analysis of rigidity and intensity is carried out to composite blasting bolt box.Composite
King-bolt loading lotus is connected on blasting bolt box, sets 14 stove bolts to constrain on 14 screws or rivet through hole 6.
5.1st, FEM model is set up
Model is set up using ANSYS finite element softwares, unit selects SHELL99 unit simulation composite laminated plate knots
Structure.SHELL99 is a linear layer structure shell unit, can be used for analysis and applies sandwich construction shell model.
Composite blasting bolt box, increase steel plate, king-bolt and stove bolt simulation actual loading conditions, such as Figure 24 is sat
The setting of mark system is as follows：
Origin：Blasting bolt box backboard base center；
X-axis：Parallel to blasting bolt box slab；
Y-axis：Parallel to blasting bolt box backboard；
Z axis：Perpendicular to blasting bolt box backboard.
Using SHELL99 layer units to simulate actual laying, (Preliminary design is 90 °：45°：- 45 °=25%：37.5%：
37.5%) situation.By 150000N tensile tests.
5.2, material and mass property
Composite blasting bolt box is carbon fiber resin composite material laminated plate structure, with reference to Unidirectional Composites
Energy parameter, performance parameter is shown in Table 5.
The T800/TDE85 performance parameters of table 5
| Longitudinal modulus | 140GPa |
| Transverse modulus | 9GPa |
| Modulus of shearing | 4.8GPa |
| Poisson's ratio | 0.3 |
| Longitudinal tensile strength | 2100MPa |
| Longitudinal compressive strength | 950MPa |
| Transverse tensile strength | 25MPa |
| Transverse compression intensity | 190MPa |
| Shear strength | 50MPa |
| Density | 1600Kg/m3 |
5.3rd, failure criteria
Using maximum stress failures criterion, judge whether individual layer fails.
The maximum stress failure criteria of individual layer is expressed from the next：
σ1=Xt(during compression | σ1|=Xc)
σ2=Yt(during compression | σ2|=YC)
|τ12|=S
This formula shows that, when individual layer is under any stress state of plane stress, any one stress of the positive axial direction of individual layer divides
When amount reaches the limit of stress, individual layer just fails.
5.4th, result of calculation
5.4.1, displacement result of calculation
It is 0.8mm to combine maximum displacement result of calculation.X is shown in Figure 25, Y-direction maximum displacement to maximum displacement distribution result of calculation
Distribution result of calculation is shown in Figure 26, and Z-direction maximum displacement distribution result of calculation is shown in Figure 27, and combination maximum displacement distribution result of calculation is shown in figure
28.It can be seen that, Z-direction maximum displacement is located at loading king-bolt hole, and Y-direction maximum displacement and combination maximum displacement are located at slab upper limb
Place.
5.4.2, stress criterion check result
Maximum stress criterion check value is 1.8, is occurred near bolt hole.Maximum stress criterion is checked Distribution value cloud atlas and seen
Figure 29.Maximum stress criterion is checked more than 1, then can be determined that and failed for individual layer.Distribution value cloud is checked according to maximum stress criterion
Figure, it may be determined that individual layer invalid position occurs near loading king-bolt hole.
5.4.3, individual layer stress calculating results
Distribution value cloud atlas is checked according to maximum stress criterion, it is determined that individual layer invalid position occurs near bolt hole, but
Which direction individual layer stress failures also needs determination is.According to individual layer all directions components of stress result of calculation (see Figure 30, Figure 31,
Figure 32, Figure 33, Figure 34), it is seen then that nearby stress is higher in loading king-bolt hole, 90 degree of tensile stresses, inplane shears around bolt hole
Stress, interlayer shear stress are higher, it may occur however that glue-line ftractures.
5.4.4, finite element analysis conclusion
By applying finite element analysis during 150000N pulling force to composite blasting bolt box, it is known that, blasting bolt box
With good bearing capacity.
6th, carbon fiber testpieces load test
In order to study stiffness characteristics of carbon fibre composite when by larger concentrfated load, failure mode, carrying effect
Rate and the feasibility of blasting bolt box of the present invention are tested as follows.
6.1st, the material that carbon fiber testpieces is loaded is prepared according to the supporting table of table 3.
The test tool of table 3 produces supporting table
6.2nd, experiment loading is required
Tension test include rigid boundary condition and etc. the class of rigidity boundary condition two experiment.Figure 22 fills for rigid boundary condition
Put schematic diagram, Figure 23 for etc. rigidity boundary condition experimental rig schematic diagram.
Loading is required：In experiment loading test is carried out according to table 4 below.
The load table of table 4
Measurement request：Testpieces pastes foil gauge, to measure the strain in loading procedure；Measured and loaded using displacement meter
During specified point displacement；Testpieces is carried out in loading procedure using acoustic emission detection method to the damage process of testpieces
Detection.
7th, testpieces tensile property is tested
Carry out load test to aluminum alloy test part and carbon fiber testpieces respectively, the ultimate load of testing experiment part, refer to
Fixed point strain and displacement and failure mode etc..
7.1st, Al-alloy parts load test
Aluminum alloy test part only does rigid boundary stretching bearing test, and the experimental rig built certainly is as shown in figure 16.The examination
Experiment device is made up of the part such as hydraulic cylinder, pulling force sensor, displacement transducer and strain measurement system.Strain measurement point such as Figure 17
It is shown, 20 measurement points altogether.
The strain (1~8# measurement points) of aluminum alloy test part and displacement measurement curve is as shown in Figure 18 and Figure 19.Due to liquid
Cylinder pressure maximum does power for 20 tons, for the sake of security, and the maximum load of this experiment is 18 tons.
7.2nd, carbon fiber testpieces is tested
The testpieces stretching clamp and tensile test apparatus of design are required according to tension test.And has been carried out to testpieces
One-off drawing tests (backboard, swash plate and the top plate thickness of the tension test are respectively less than the thickness of table 2), and testpieces collapse state is such as
Shown in Figure 20.
After testing for the first time, swash plate 3 and backboard 2 are as excellent as before, and destruction position occurs in top plate 1, and breakoff phenomenon is interlayer
Cracking.
According to such a phenomenon, bolt is increased in the relevant position of top plate 1, the backboard, swash plate and top plate of blasting bolt box is thick
Degree becomes the thickness requirement of table 2, and has carried out second of tension test.
During second of experiment, breaking load is improved.Breakoff phenomenon is to be opened in top plate 1 with the junction of swash plate 3 and top plate 1
Split (see Figure 21).Illustrate that the improvement project after testing for the first time serves positive effect.
Therefore, on the basis of last time experiment improvement project, continue to increase increases bolt in the delamination position of top plate 1.And
And, the ratio of 90 ° of layings of swash plate 3 is improved, 80% is brought up to from 50%.Blasting bolt box backboard 2, top plate 1 and two swash plates 3
Carbon fiber laying angle and the consumption adjustment of each several part are shown in Table 2.
Second of table 2 experiment after-explosion bolt box carbon fiber laying angle and use scale
。
It follows that the blasting bolt box of the present embodiment can be reached very by adjusting after ply stacking angle and fiber consumption
Good stretch-proof effect.
Claims (9)
1. a kind of blasting bolt box, it is characterised in that it is oblique by top plate (1), blasting bolt box backboard (2), two blasting bolt boxes
Plate (3) is constituted；Blasting bolt box backboard (2) both sides are provided with two blasting bolt box side plates (3)；Blasting bolt box backboard (2)
Top plate (1) is provided with the top of two blasting bolt box swash plates (3)；Described top plate (1) center offers blasting bolt company
Connect hole (4)；Described blasting bolt box backboard (2) center offers lightening hole (5)；
The vertical portion of described blasting bolt box backboard (2) is 160 ° with the angle а that bending part is formed, bending part with
The angle beta of top plate (1) formation is 110 °；
Several screws or rivet through hole (6) are offered on described blasting bolt box backboard (2).
2. a kind of blasting bolt box according to claim 1, it is characterised in that the thickness of described blasting bolt box backboard (2)
Spend for 13mm；Blasting bolt box swash plate (3) thickness is 9mm；Top plate (1) thickness is 30mm.
3. a kind of blasting bolt box according to claim 1, it is characterised in that blasting bolt box is to use carbon fiber or aluminium
What alloy was made.
4. a kind of preparation method of blasting bolt box, it is characterised in that it is prepared using blasting bolt box mould, tool
Body step is as follows：
First, according to laying angle needed for preparing blasting bolt box and prepreg consumption, respectively in point valve (7), small point of valve one (8) greatly
Prepreg is laid with the working face of small point of valve two (12)；
2nd, point valve (7), small point of valve one (8) and the small point of valve two (12) greatly of prepreg will have been laid, lower plate (2) is respectively placed at
3 locating slots one (9) in；
3rd, on the basis of the prepreg that big point of valve (7) of step one, small point of valve one (8) and small point of valve two (12) working face are laid,
Laying angle and prepreg consumption as needed for blasting bolt box, and thickness requirement, continue to lay prepreg；
4th, matched moulds
A, left plate (3) and right plate (4) lower end be placed in the both sides locating slot two (10) of lower plate (2), by being arranged on a left side
Screw hole in side plate (3) and the screwing through hole (13) and lower plate (2) both sides locating slot two (10) of right plate (4) bottom
(14) it is, respectively that left plate (3) and right plate (4) and lower plate (2) is fixed using bolt；
B, front side board (5) and back side panel (6) be placed in lower plate (2), make the lower surface of front side board (5) and back side panel (6) equal
The upper surface of lower plate of fitting (2)；Front side board (5) and back side panel (6) inner surface are fitted left plate (3) and right plate (4) both sides
End face, and use screw or rivet, it is logical by the screw or rivet that are arranged on front side board (5) and back side panel (6) rear and front end
Hole (15) is fixed；
C, the locating slot two (10) that left plate (3) and right plate (4) upper end are placed in into upper plate (1) both sides respectively are interior, pass through and set
Screw hole in the screwing through hole (13) and upper plate (1) both sides locating slot two (10) on left plate (3) and right plate (4) top
(14) it is, respectively that left plate (3) and right plate (4) and upper plate (1) is fixed using bolt；
D, screw or rivet through hole (16) by being arranged on upper plate (1) and lower plate (2) left and right ends, will be upper with screw or rivet
Plate (1) and lower plate (2) are fixed；
5th, the good mould of step 4 matched moulds is put into curing oven and is heated, solidified；
6th, it is stripped；
7th, the testpieces after the demoulding is machined, opens up blasting bolt connecting hole, lightening hole and screw or rivet is logical
Hole；
Described blasting bolt box mould includes lower plate (2), divides valve (7), small point of valve one (8), small point of valve two (12), a left side greatly
Side plate (3), right plate (4), front side board (5), back side panel (6) and upper plate (1)；Wherein, lower plate (2) upper surface offers 3 and determined
The both sides of position groove one (9), upper plate (1) and lower plate (2) offer locating slot two (10)；
Point valve (7), small point of valve one (8), small point of valve two (12) are rectangular parallelepiped structure greatly；And divide valve (7), small point of valve one (8) greatly
And the length and height all same of small point of valve two (12), small point of valve one (8) be identical with the width of small point of valve two (12)；
It is oblique that the side and small point of valve one (8) side corresponding with point valve (7) greatly of big point of valve (7) are provided with right angled triangle
Platform (17)；The short side of described right angled triangle sloping platform (17) is located at big point of valve (7) and the rear side of small point of valve one (8) respectively, and
The upper surface beeline of big point of valve (7) of short side distance or small point of valve one (8) is 8~10mm；
Point valve (7), small point of valve one (8) and small point of valve two (12) bottom are provided with the projection that shape matches with locating slot one greatly
(13)；
The length of locating slot two (10) and the identical length of left plate (3), right plate (4) are same；Left plate (3) and right plate (4)
Boss (11) is respectively arranged with interior side-wall surface, the length of boss (11) is consistent with the length of locating slot two (10), boss
(11) width is consistent with the height of front side board (5), back side panel (6)；
Distance of two locating slots one (9) in outside respectively away from lower plate (2) edge and boss (11) are wide in three locating slots one (9)
Degree is identical；Distance is 1.5 times of locating slot one (9) width between each locating slot one (9)；
Described point valve (7), small point of valve one (8) greatly bends downwards with small point of valve two (12) top front end；Wherein, the level on top
The angle а that end face is formed with bending end face is 160 °, and bending end face and the angle beta of anterior vertical plane formation are 110 °；
The upper and lower part of left plate (3) and right plate (4) offers multiple screwing through hole (13), and locating slot two (10) with
The corresponding position of screwing through hole (13) offers screw hole (14), and left plate (3) and right plate (4) are fixed respectively by screw
With on locating slot two (10)；
The inner surface of front side board (5) and back side panel (6) fits in the end face of left plate (3) and right plate (4) both sides respectively, and preceding
Fit upper surface of the lower surface of side plate (5) and back side panel (6) respectively with lower plate (2)；Before front side board (5) and back side panel (6)
End and rear end offer screw or rivet through hole (15)；Front side board (5) and back side panel (6) pass through screw or rivet through hole (15)
It is fixedly connected；
The left and right ends of upper plate (1) and lower plate (2) offer screw or rivet through hole (16), and pass through screw or rivet through hole
(16) it is fixedly connected.
5. a kind of preparation method of blasting bolt box according to claim 4, it is characterised in that described laying angle and
Prepreg consumption is referred specifically to：
The angle and prepreg consumption condition of blasting bolt box backboard are as follows：90°：45°：- 45 °=50%：25%：25%；
The angle and prepreg consumption condition of blasting bolt box swash plate are as follows：90°：45°：- 45 °=50%：25%：25%；
The angle and prepreg consumption condition of blasting bolt box top plate are as follows：0°：90°：45°：- 45 °=25%：25%：25%：
25%.
6. a kind of preparation method of blasting bolt box according to claim 4, it is characterised in that described laying angle and
Prepreg consumption is referred specifically to：
The angle and prepreg consumption condition of blasting bolt box backboard are as follows：90°：45°：- 45 °=50%：25%：25%；
The angle and prepreg consumption condition of blasting bolt box swash plate are as follows：90°：45°：- 45 °=80%：10%：10%；
The angle and prepreg consumption condition of blasting bolt box top plate are as follows：0°：90°：45°：- 45 °=25%：25%：25%：
25%.
7. the preparation method of a kind of blasting bolt box according to claim 4, it is characterised in that described thickness refers to compound
The thickness of the backboard of material blasting bolt box, swash plate and top plate, respectively 13mm, 9mm and 30mm.
8. the preparation method of a kind of blasting bolt box according to claim 4, it is characterised in that described prepreg is carbon
Fiber prepreg material or aluminium alloy prepreg.
9. the preparation method of a kind of blasting bolt box according to claim 4, it is characterised in that starting to lay prepreg
Before, applied in the working face of point valve (7), small point of valve one (8) and small point of valve two (12) greatly, and right angled triangle sloping platform (17) surface
Cover releasing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703074.5A CN107253337B (en) | 2017-08-16 | 2017-08-16 | A kind of blasting bolt box and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710703074.5A CN107253337B (en) | 2017-08-16 | 2017-08-16 | A kind of blasting bolt box and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107253337A true CN107253337A (en) | 2017-10-17 |
| CN107253337B CN107253337B (en) | 2019-04-12 |
Family
ID=60026717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710703074.5A Active CN107253337B (en) | 2017-08-16 | 2017-08-16 | A kind of blasting bolt box and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107253337B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109911246A (en) * | 2019-02-20 | 2019-06-21 | 上海卫星工程研究所 | Spacecraft composite structure is connected suitable for point type |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111409875A (en) * | 2020-03-19 | 2020-07-14 | 上海卫星工程研究所 | Composite material bearing structure suitable for space vehicle separation cabin section |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5463957A (en) * | 1994-05-26 | 1995-11-07 | Lockheed Missiles & Space Company, Inc. | Inflatable nose fairing |
| RU2399018C1 (en) * | 2009-03-18 | 2010-09-10 | Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр имени М.В. Хруничева" | Fitting and method of its fabrication |
| CN203464858U (en) * | 2013-08-22 | 2014-03-05 | 北京宇航系统工程研究所 | Combined explosive bolt box structure capable of releasing pressure in sliding manner |
| CN204881355U (en) * | 2015-06-19 | 2015-12-16 | 北京宇航系统工程研究所 | Compound explosion bolt box structure |
-
2017
- 2017-08-16 CN CN201710703074.5A patent/CN107253337B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5463957A (en) * | 1994-05-26 | 1995-11-07 | Lockheed Missiles & Space Company, Inc. | Inflatable nose fairing |
| RU2399018C1 (en) * | 2009-03-18 | 2010-09-10 | Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр имени М.В. Хруничева" | Fitting and method of its fabrication |
| CN203464858U (en) * | 2013-08-22 | 2014-03-05 | 北京宇航系统工程研究所 | Combined explosive bolt box structure capable of releasing pressure in sliding manner |
| CN204881355U (en) * | 2015-06-19 | 2015-12-16 | 北京宇航系统工程研究所 | Compound explosion bolt box structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109911246A (en) * | 2019-02-20 | 2019-06-21 | 上海卫星工程研究所 | Spacecraft composite structure is connected suitable for point type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107253337B (en) | 2019-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shroff et al. | Design, analysis, fabrication, and testing of composite grid-stiffened panels for aircraft structures | |
| Karal | AST composite wing program: executive summary | |
| Smeets et al. | Structural testing of a shear web attachment point on a composite lattice cylinder for aerospace applications | |
| CN107253337B (en) | A kind of blasting bolt box and preparation method thereof | |
| Yovanof et al. | Compressive behavior of frame-stiffened composite panels | |
| Wang et al. | Experimental and numerical studies on the stability behavior of composite panels stiffened by tilting hat-stringers | |
| Fleuret et al. | Complex wing spar design in carbon fiber reinforced composite for a light aerobatic aircraft | |
| Giglio et al. | Crack propagation on helicopter panel: Experimental test and analysis | |
| Hou et al. | Failure characteristics of composite metallic foam core hat-shaped tubular T-joints under static and impact loading | |
| Zhang et al. | Experiment and analysis of composite reinforced panel’s limit load capacity under axial compression | |
| Kindervater et al. | Crash and impact simulation of aircraft structures-hybrid and FE based approaches | |
| Nguyen et al. | Influence of automated fiber placement (afp) manufacturing signature on the mechanical performance of a composite | |
| Huang et al. | Molding process influence on pull-off performance of composite stiffened panels | |
| Hu et al. | Design technique of the test static for large curvature composite radome | |
| Thomson et al. | Experience with the finite element modelling of a full-scale test of a composite aircraft control surface | |
| Jegley | Behavior of compression-loaded composite panels with stringer terminations and impact damage | |
| Engleder et al. | The development of an innovative composite tailboom | |
| Zhang et al. | Analysis of the openings of aircraft composite laminated wing beam web under shear load | |
| Troiani et al. | Cfrp crash absorbers in small uav: Design and optimization | |
| Mueller et al. | Design and analysis of composite helicopter fuselage structures | |
| Lehman | Development of an Advanced Composite Rudder for Flight Service on the DC-10 | |
| Rouse et al. | Evaluation of scaling approach for stiffened composite flat panels loaded in compression | |
| Eremin et al. | Determination of Load-Carrying Capacity of the Honeycomb Panel at Fixing Points of Embedded Bushings Under In-Plane Load | |
| Magryta et al. | FEM Simulation of Different Engine Mount Models in an Aircraft Piston Diesel Engine | |
| Michael | AST Composite Wing Program---Executive Summary |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |