CN107283872A - The ply sequence and manufacture method of a kind of electronic racing car monocoque body - Google Patents
The ply sequence and manufacture method of a kind of electronic racing car monocoque body Download PDFInfo
- Publication number
- CN107283872A CN107283872A CN201710657446.5A CN201710657446A CN107283872A CN 107283872 A CN107283872 A CN 107283872A CN 201710657446 A CN201710657446 A CN 201710657446A CN 107283872 A CN107283872 A CN 107283872A
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- laying
- fiber skin
- test specimen
- monocoque body
- 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
- B29C70/30—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
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
-
- 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
- B29C70/342—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 isostatic pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3055—Cars
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of ply sequence of electronic racing car monocoque body and manufacture method, the body material for making the monocoque body is combined by two layers of carbon fiber skin and laminboard layer, laminboard layer is honeycomb aluminum or PVC structural foams, monocoque body is divided into six kinds of carbon fiber skin ply sequence regions according to different structure and mechanical property requirements, releasing agent is coated in manufacturing process on mould, then first layer carbon fiber skin has been coated with it according to the ply sequence of design, then mould is put into vacuum bag and vacuumized and hot-forming, afterwards by honeycomb aluminum or PVC structural foams by glue-film stickup on first layer carbon fiber skin, second layer carbon fiber skin has been coated with according to design, it is put into vacuum bag and vacuumizes and hot-forming in the same way, the demoulding obtains electronic racing car monocoque body afterwards.The present invention is being obviously improved the rigidity of vehicle body, intensity, safety coefficient and and is reaching light-weighted target while excellent shock absorption and energy-absorbing effect.
Description
Technical field
The present invention relates to the electronic racing car monocoque body field of university student, more particularly to a kind of electronic racing car monocoque body
Ply sequence and manufacture method.
Background technology
Nowadays motor sport, which more and more turns into the weight of racing car in important sports, motor sport, becomes energy
The no key factor got good grades, wherein target of the loss of weight of racing body into numerous fleets.Current racing car generally makes
With steel pipe truss formula vehicle frame and carbon fiber skin vehicle body, kerb weight is excessive, torsional rigidity, intensity with outstanding energy absorption
Ability can not be met simultaneously, it is impossible to light-weighted effect be reached while vehicle security is improved, in addition currently without correlation
Disclosed general method of testing, which carrys out science, to be proved monocoque construction security therefore is badly in need of a kind of electronic racing car bearing-type
The method of testing of body structure security, it is ensured that the security performance of racing car.
The content of the invention
The purpose of the present invention is for the overall torsional rigidity of existing Non-carrying type racing body is too small, energy absorbing efficiency
Difference, the larger defect of quality provide the ply sequence of a kind of carbon fiber, honeycomb aluminum and PVC foam core materials, reduce electronic racing car car
Preferable mechanical property and security are obtained while body quality.Another object of the present invention is to provide a kind of electronic racing car to hold
The method of testing of load formula body structure security, it is ensured that the security performance of racing car.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of ply sequence of electronic racing car monocoque body, it is characterised in that：Make the vehicle body material of the monocoque body
Material is combined by two layers of carbon fiber skin and laminboard layer, and the laminboard layer is honeycomb aluminum or PVC structural foams, according to different
Monocoque body is divided into polylith region difference on polylith region, monocoque body and uses six altogether by structure and mechanical property requirements
Carbon fiber skin ply sequence is planted, different zones and the ply sequence corresponding relation of monocoque body are shown in Table 1, every kind of ply sequence
Middle carbon fibre initial rinse fabric ply stacking-sequence is shown in Table 2：
The ply sequence that the different zones of the monocoque body of table 1. are used
| Laying code name | Laying is distributed |
| Laying one | Dividing plate before front deck |
| Laying two | Front deck or so panel, cockpit lower panel, battery flat top panel |
| Laying three | Cockpit or so panel the latter half |
| Laying four | Front deck upper and lower panel |
| Laying five | Cockpit or so panel top half |
| Laying six | Battery flat or so panel, battery flat lower panel, motor room panel up and down |
Table 2
| Laying code name | Ply stacking-sequence |
| Laying one | [45F/04/90/04/90/04/90/04/45F/Core/45F/03/90/04/90/04/90/03/45F] |
| Laying two | [45F/03/0F/03/0F/03/45F/CorePVC/45F/03/0F/03/45F] |
| Laying three | [45F/902/0F/90/45F/CorePVC/45F/902/0F/90/45F] |
| Laying four | [45F/902/0F/90/45F/Core/45F/902/0F/90/45F] |
| Laying five | [45F/03/0F/02/45F/Core/45F/02/0F/0/45F] |
| Laying six | [45F/903/0F/902/45F/Core/45F/902/0F/90/45F] |
In table 2：It is honeycomb aluminum, Core that Core, which represents sandwich layer material,PVCIt is PVC structural foams to represent sandwich layer material；
It is to be before Core or CorePVC after inner first layer carbon fiber skin ply stacking-sequence, Core or CorePVC
The ply stacking-sequence of outer second layer carbon fiber skin, with/represent between carbon fibre initial rinse fabric laying in carbon fiber skin
Interval；
Above there is the expression ply stacking angle of numeral in each carbon fibre initial rinse fabric laying, 0,45 and 90 represent carbon fiber respectively
Prepreg cloth is laid for 0 degree, 45 degree and 90 degree along machine direction；
In each carbon fibre initial rinse fabric laying, there is F to represent plain, F is not marked for unidirectional cloth；
In each carbon fibre initial rinse fabric laying, cloth of the same race two layers of carbon fibre initial rinse of continuous laying is represented at additional subscript
Cloth, the only laying individual layer carbon fibre initial rinse fabric without subscript；
Angle explanation：It is 0 ° of direction along body structure to the horizontal axis of rear end, angle is positive and negative to be defined as：Offset up for
Just, it is negative to offset downward as negative or skew to the left, and skew is just to the right.
As an improvement, built-in fitting load tie point laying carries out local reinforcement, the laying of strengthening course on monocoque body
Sequentially it is：0/90/45/-45, the strengthening course is symmetrically added on inside and outside two layers of carbon fiber skin.
A kind of manufacture method of electronic racing car monocoque body, it is characterised in that will constitute inside and outside the monocoque body
Two layers of carbon fiber skin is designated as first layer carbon fiber skin and second layer carbon fiber skin respectively, and specific preparation method is as follows：
Step 1: the die surface in manufacture monocoque body coats releasing agent；
Step 2: corresponding position requires to carry out multilayer carbon according to different on mould according to carbon fiber skin Lay up design
Fiber prepreg is coated with, and forms first layer carbon fiber skin；
Step 3: being coated with release cloth on the first layer carbon fiber skin surface being coated with；
Step 4: the above-mentioned mould for being coated with first layer carbon fiber skin is put into vacuum bag, and pass through vacuum pumping
Vacuum, tests vacuum and meets requirement afterwards；
It is hot pressed into Step 5: the mould that first layer carbon fiber skin is covered after above-mentioned vacuumize is put into autoclave
Vacuum bag is removed after type, hot pressing, release cloth is removed, the monocoque body of first layer carbon fiber skin composition is obtained；
Step 6: being all coated with glued membrane on the first layer carbon fiber skin surface for removing release cloth, it is coated with glued membrane
It is connected between aluminium honeycomb, aluminium honeycomb by structure glue；
Step 7: according to above-mentioned monocoque body carbon fiber skin Lay up design, in the aluminium honeycomb table of mould respective regions
Require that carrying out carbon fibre initial rinse fabric is coated with, and forms second layer carbon fiber skin according to different on face；
Step 8: being coated with release cloth on the second layer carbon fiber skin surface being coated with；
Step 9: the mould for being coated with second layer carbon fiber skin is put into very according to above-mentioned steps four and step 5 method
In empty bag, it is put into hot-forming in autoclave after vacuumizing, removes vacuum bag after hot pressing, remove release cloth, completed after the demoulding
Monocoque body makes.
As an improvement, in step one, what it is in die surface coating is chemical releasing agent six layers thin, per stratification releasing agent
Between minimum interval 15 minutes, last stratification releasing agent at least wants 1 hour can just carry out next step afterwards after being painted with.
As an improvement, step 4 neutralization procedure nine, has at the injustice of turning on monocoque body surface, vacuum bag is folded,
Vacuum bag is kept to be in close contact with the carbon fiber skin surfacing covered with release cloth.
As an improvement, in step 4, the vacuum monitor duration is not less than 20 minutes after to bag vacuum.
As an improvement, in step 5 and step 9, hot pressing is carried out using the technological parameter set in autoclave, specific temperature
Spending parameter is：Constant-speed heating is warming up to constant-speed heating in 15 DEG C, 30 minutes and is warming up to 85 DEG C in 2 minutes, is kept for 85 DEG C, during constant temperature
Between be warming up to 120 DEG C for constant-speed heating in 50-90 minute, afterwards 13 minutes, kept for 120 DEG C, constant temperature time is that 100-150 divides
Clock, 60 DEG C are at the uniform velocity cooled in last 12 minutes；Pressure parameter runs in 2-5 minutes, 2 minutes for 0KPa and is at the uniform velocity pressurized to
200KPa, keeps 200KPa, and constant voltage time is at the uniform velocity to be depressured to 0KPa in 210-260 minutes, afterwards 2 minutes.
As an improvement, in step 8, on the release cloth on second layer carbon fiber skin surface being coated with one layer again can absorb
The suction rubber mat of Excess resin on carbon fibre initial rinse fabric.
A kind of Testing Method of Safety of electronic racing car monocoque body, it is characterised in that the security performance test side
Method includes the testing of materials, and the testing of materials is the body material test specimen for taking the above-mentioned monocoque body of polylith, then to vehicle body material
Expect that test specimen carries out three-point bend test and circumferential shear test；
The three-point bend test uses microcomputer controlled electronic universal tester, and loading seaming chuck is the hemispheric ball in end
Face the column indenter indentation, its radius is R1, bearing is that fillet bearing radius is r1, bearing span L=400mm, the loading seaming chuck amount of feeding
For 5mm/min, comprise the following steps that：
A. body material test specimen outward appearance and state are checked, it is intact certified products to confirm body material test specimen；
B. by qualified body material test specimen numbering, line, measurement body material test specimen middle(-)third span is appointed
Anticipate 3 points of thickness h, take arithmetic mean of instantaneous value, computational accuracy is 0.01mm；
C. the position of regulation span L and seaming chuck, accurately to 0.5mm, loads seaming chuck and is located in the middle of bearing, and make pressure
Head is parallel with the chamfering face of cylinder axis of bearing；
D. body material test specimen tension face is marked, body material test specimen is symmetrically placed on two bearings；
E. the instrument for measuring deformation is placed at span centre, contacted with body material test specimen lower surface, application is preloaded, examined
Instrument is looked into and adjusted, whole system is in normal condition；
F. body material test specimen is continuously loaded, until reaching maximum load, and load declines 30% from maximum load and stopped
Only test；
G. experiment 10 times is repeated according to above-mentioned steps, calculates modulus of shearing, excluded abnormal data, take arithmetic mean of instantaneous value；
The circumferential shear test uses compression test, and loading seaming chuck should be the flat punch of cylinder, flat punch end
Portion is plane, and cylinder diameter is φ, and bearing is the hollow circuit cylinder platform of an aluminum, and the radius of hollow circuit cylinder platform is R2, in
Circle hole radius in the middle of hollow round column platform are r2, cylinder and circular hole coaxial line；It is 20mm/min, tool to load the seaming chuck amount of feeding
Body step is as follows：
A. body material test specimen outward appearance and state are checked, it is intact certified products to confirm body material test specimen；
B. by qualified body material test specimen numbering, line, random site in any three side of measurement body material test specimen
Thickness, takes arithmetic mean of instantaneous value, and computational accuracy is 0.01mm；
C. loading seaming chuck is located in the middle of bearing, and makes the face of cylinder coaxial line of loading seaming chuck and bearing；
D. body material test specimen tension face is marked, body material test specimen is symmetrically placed on bearing；
E. body material test specimen is continuously loaded, until body material test specimen is completely penetrated；
F. experiment 10 times is repeated according to above-mentioned steps, the load-deflection curve recorded according to equipment calculates elasticity of flexure mould
Amount and maximum stress in bend, exclude abnormal data, take arithmetic mean of instantaneous value.
As an improvement, the Testing Method of Safety also includes sunykatuib analysis, concretely comprise the following steps：
(1) after the testing of materials terminates, constantly laying scheme is optimized according to result that is measured or calculating, selected
Go out the more excellent design of monocoque body respective regions；
(2) racing car appearance and modeling modeling is carried out with 3 d modeling software CATIA, ALIAS；
(3) measured by the testing of materials or obtained mechanics parameter will be calculated it is input in ANSYS, with ANSYS to racing car
Vehicle various working simulated, carried out so as to adjust electronic racing car each region laying and corresponding construction under various working
Improve；
(4) ply sequence is improved with after structure, meeting monocoque body mechanical property according to software sunykatuib analysis result
Design requirement, i.e., under various working, monocoque body any part deformation quantity is no more than 25mm, and any one structure division is not
Fail.
Beneficial effects of the present invention：The ply sequence is used as the respective mechanics of laminboard layer by the use of honeycomb aluminum and PVC foams
Advantage, provides varying strength with reference to vehicle different zones mechanical property requirements, is obviously improved the electronic racing car bearing-type car of university student
The rigidity of body, intensity, safety coefficient and and reach light-weighted target while excellent shock absorption and energy-absorbing effect, carry
The method of testing of formula body structure security provide carbon fiber aluminum honeycomb composite materials property testing equipment and
Step, while also giving the security simulation softward and safety post of carbon fiber aluminum honeycomb composite monocoque body
It is accurate.
Brief description of the drawings
Fig. 1 is body material structural representation.
Fig. 2 is monocoque body laying distribution mode front-view schematic diagram.
Fig. 3 is monocoque body laying distribution mode schematic top plan view.
Fig. 4 is monocoque body laying distribution mode left view schematic diagram.
Fig. 5 is that the monocoque body laying distribution mode right side regards schematic diagram.
Fig. 6 is monocoque body laying distribution mode elevational schematic view.
Fig. 7 is three-point bend test schematic front view.
Fig. 8 is three-point bend test left view schematic diagram.
Fig. 9 is three-point bend test body material test specimen, loading pressure head and bearing schematic diagram.
Figure 10 is circumferential shear test schematic diagram.
1- first layer carbon fiber skins, 2- second layer carbon fiber skins, 3- laminboard layers, 4- glued membranes, 5- front deck top panels, 6-
Dividing plate before front deck, 7- battery flat top panels, 8- motor room top panels, 9- cockpit left panel top halfs, 10- front deck left panels,
11- cockpit left panels the latter half, 12- battery flat left panels, 13- motor room left panels, 14- cockpit right panel top halfs,
15- motor room right panels, 16- battery flat right panels, 17- cockpit right panels the latter half, 18- front deck right panels, 19- motor rooms
Lower panel, 20- battery flat lower panels, 21- cockpit lower panels, 22- front deck lower panels, 23- sphere the column indenter indentations, 24- fillet branch
Seat, 25- body material test specimens, 26- flat punches, 27- hollow circuit cylinder platforms.
Embodiment
The present invention is illustrated below in conjunction with the accompanying drawings
A kind of ply sequence of electronic racing car monocoque body, the body material for making the monocoque body is fine by two layers of carbon
Dimension covering and laminboard layer 3 are combined, and the laminboard layer 3 is honeycomb aluminum or PVC structural foams, according to different structure and mechanics
Monocoque body is divided into polylith region difference on polylith region, monocoque body and covered using six kinds of carbon fibers altogether by performance requirement
Skin ply sequence, the different zones and ply sequence corresponding relation of monocoque body are as follows：
The ply sequence that the different zones of the monocoque body of table 1. are used
Laying one：Dividing plate 6 before front deck；
Laying two：Front deck left panel 10, front deck right panel 18, cockpit lower panel 21, battery flat top panel 7；
Laying three：Cockpit left panel the latter half 11, cockpit right panel the latter half 17；
Laying four：Front deck top panel 5, front deck lower panel 22；
Laying five：Cockpit left panel top half 9, cockpit right panel top half 14；
Laying six：Battery flat left panel 12, battery flat right panel 16, battery flat lower panel 20, motor room top panel 8, electricity
Cabin lower panel 19, motor room left panel 13, motor room right panel 15；
Carbon fibre initial rinse fabric ply stacking-sequence is shown in Table 2 in every kind of ply sequence：
Table 2
| Laying code name | Ply stacking-sequence |
| Laying one | [45F/04/90/04/90/04/90/04/45F/Core/45F/03/90/04/90/04/90/03/45F] |
| Laying two | [45F/03/0F/03/0F/03/45F/CorePVC/45F/03/0F/03/45F] |
| Laying three | [45F/902/0F/90/45F/CorePVC/45F/902/0F/90/45F] |
| Laying four | [45F/902/0F/90/45F/Core/45F/902/0F/90/45F] |
| Laying five | [45F/03/0F/02/45F/Core/45F/02/0F/0/45F] |
| Laying six | [45F/903/0F/902/45F/Core/45F/902/0F/90/45F] |
In table 2：It is honeycomb aluminum, Core that Core, which represents the material of laminboard layer 3,PVCIt is PVC structural foams to represent the material of laminboard layer 3；
It is to be before Core or CorePVC after inner first layer carbon fiber skin ply stacking-sequence, Core or CorePVC
The ply stacking-sequence of outer second layer carbon fiber skin, with/represent between carbon fibre initial rinse fabric laying in carbon fiber skin
Interval；
Above there is the expression ply stacking angle of numeral in each carbon fibre initial rinse fabric laying, 0,45 and 90 represent carbon fiber respectively
Prepreg cloth is laid for 0 degree, 45 degree and 90 degree along machine direction；
In each carbon fibre initial rinse fabric laying, there is F to represent plain, F is not marked for unidirectional cloth；
In each carbon fibre initial rinse fabric laying, cloth of the same race two layers of carbon fibre initial rinse of continuous laying is represented at additional subscript
Cloth, the only laying individual layer carbon fibre initial rinse fabric without subscript；
Angle explanation：It is 0 ° of direction along body structure to the horizontal axis of rear end, angle is positive and negative to be defined as：Offset up for
Just, it is negative to offset downward as negative or skew to the left, and skew is just to the right.
The patent material therefor attribute of the present invention of table 3.：
| Title material | Material specifying information |
| Plain | The trade mark is 2554-C03303200, and carbon fiber is TC33-3K, unit area weight 200g/m2. |
| Unidirectional cloth | The trade mark is 2554-C03612075, and carbon fiber is TC36S-12K, unit area weight 75g/m2. |
| Honeycomb aluminum | Material is 5052 aluminium, honeybee lattice length of side 4mm, wall thickness 0.1mm. |
| PVC structural foams | Laminboard layer thickness has 15mm, 20mm, 25mm, density 80kg/m3. |
Preferably, built-in fitting load tie point laying carries out local reinforcement, the laying of strengthening course on monocoque body
Sequentially it is：0/90/45/-45, the strengthening course is symmetrically added on inside and outside two layers of carbon fiber skin.
A kind of manufacture method of electronic racing car monocoque body, will constitute two layers of carbon fiber inside and outside the monocoque body and covers
Skin is designated as first layer carbon fiber skin 1 and second layer carbon fiber skin 2 respectively, and specific preparation method is as follows：
Step 1: the die surface in manufacture monocoque body coats chemical releasing agent six layers thin, the demoulding per stratification
Minimum interval 15 minutes between agent, last stratification releasing agent can just carry out next after at least being wanted after being painted with 1 hour
Step, mold material is aluminium, and length is more than 800mm, and width is more than 600mm, the smooth no concave-convex of surfacing；
Step 2: corresponding position requires to carry out multilayer carbon according to different on mould according to carbon fiber skin Lay up design
Fiber prepreg is coated with, and forms first layer carbon fiber skin 1；
Step 3: being coated with release cloth on the surface of first layer carbon fiber skin 1 being coated with；Ensure that release cloth can cover
Lid carbon fibre initial rinse fabric, is generally cut into more bigger than the area of carbon fibre initial rinse fabric, and length is about 850mm, and width is about
650mm.The step purpose is convenient by used in carbon fiber skin and manufacturing process after the completion of the resin solidification in carbon fiber
Other materials separation.
Step 4: the above-mentioned mould for being coated with first layer carbon fiber skin 1 is put into vacuum bag, and pass through vacuum pumping
Vacuum, tests vacuum and meets requirement afterwards；Concretely comprise the following steps：
(1) vacuum valve is placed, vacuum valve is placed on to the surface of release cloth, vacuum valve is a kind of check valve, close for extracting out
The domestic air of seal ring, and keep vacuum.
(2) vacuum systems are arranged, sealant tape (being similar to double faced adhesive tape) is pasted onto the edge of mould.Cut one piece and compare mould
Has the bigger vacuum bag film of area.Since in corner, the paper at peel seal adhesive tape back presses vacuum bag film, adheres to exposure
Sealant tape on.Carbon fiber prepreg is sealed using vacuum bag, fluid sealant, mould.It is preferred that, vacuum bag film, length is about
For 1000mm, width is about 800mm.Have on monocoque body surface at the injustice of turning, vacuum bag folded, keep vacuum bag with
Carbon fiber skin surfacing covered with release cloth is in close contact.
(3) connection and sealing vacuum valve.All vacuum bag films all heaps are folded, and carbon fibre initial rinse fabric is sealed to vacuum bag
In, the breach of vacuum valve interface lane one in vacuum bag film makes vacuum valve interface stretch out vacuum bag film, and will with sealant tape
Breach is sealed.Connect the interface of vavuum pump in vacuum valve interface and autoclave.
(4) vavuum pump is opened, air is evacuated, vacuum bag is adjusted.When air is taken away out of vacuum bag, surrounding is moved simultaneously
Fixed vacuum bag film, it can be seen that vacuum bag film makes carbon fibre initial rinse fabric tightly be attached to all sites of die surface.
(5) vacuum is tested.The air in vavuum pump and suction ring border is opened, just can be appreciated that the vacuum of vavuum pump shows
Show that the vacuum values in instrument are begun to ramp up.When close to perfect vacuum, vacuum values are not rising.At this moment, it should carry out
Turn off vavuum pump, continue at least 20 minutes, then meticulous inspection vacuum values；If index decreased, then can determine true
Empty bag film has leakage, it is necessary to be adjusted.If endless hermetically sealed, vacuum bag film and sealant tape can be firmly pressed, then
Vacuum test is carried out, until being fully sealed.
It is hot pressed into Step 5: the mould that first layer carbon fiber skin 1 is covered after above-mentioned vacuumize is put into autoclave
Hot pressing is carried out using the technological parameter set in type, autoclave, and actual temp parameter is：Constant-speed heating is warming up in 2 minutes
Constant-speed heating is warming up to 85 DEG C in 15 DEG C, 30 minutes, is kept for 85 DEG C, constant temperature time be in 50-90 minutes, afterwards 13 minutes at the uniform velocity
120 DEG C are heated to, is kept for 120 DEG C, constant temperature time is at the uniform velocity to cool to 60 DEG C in 100-150 minutes, last 12 minutes；Pressure
Force parameter runs for 0KPa and 200KPa is at the uniform velocity pressurized in 2-5 minutes, 2 minutes, keeps 200KPa, constant voltage time is 210-260
Minute, at the uniform velocity it is depressured to 0KPa in 2 minutes afterwards.After the completion of hot pressing, mould is taken out from autoclave, vavuum pump is pulled out and connects
Mouthful, vacuum bag film is torn from mould, release cloth is removed, the monocoque body of the composition of first layer carbon fiber skin 1 is obtained.Tool
Body step is：
1. surrounding edge and the removal of vacuum bag film are cut.
2. the sealant tape of die edge is removed.
3. vacuum valve is removed, the sealant tape being bonded on vacuum valve is removed totally, made so that repeating vacuum valve is repeatable
With.
4. release cloth is carefully torn, carbon fiber layer should not be damaged.
Step 6: glued membrane 4 is all coated with the surface of first layer carbon fiber skin 1 for removing release cloth, on the upper berth of glued membrane 4
Aluminium honeycomb is covered, honeycomb aluminum and the first layer carbon fiber skin 1 completed are bonded firmly using glued membrane 4, led between aluminium honeycomb
Cross structure glue to be connected, general, aluminium honeycomb material is 5052 aluminium, honeybee lattice length of side 4mm, thickness 0.05mm, and height 5mm~25mm is not
Deng depending on monocoque body Lay up design.
Step 7: according to above-mentioned monocoque body carbon fiber skin Lay up design, in the aluminium honeycomb table of mould respective regions
Require that carrying out carbon fibre initial rinse fabric is coated with, and forms second layer carbon fiber skin 2 according to different on face；
Step 8: being coated with release cloth on the surface of second layer carbon fiber skin 2 being coated with, generally it is cut into and compares the second layer
The area of carbon fiber skin 2 is bigger.It is preferred that, release cloth, length is about 900mm, and width is about 700mm.It is fine in second layer carbon
One layer of suction rubber mat is coated with the release cloth on dimension covering 2 surface again, resin unnecessary on carbon fibre initial rinse fabric can be absorbed by inhaling rubber mat
Step 9: the mould for being coated with second layer carbon fiber skin 2 is put into according to above-mentioned steps four and step 5 method
In vacuum bag, it is put into hot-forming in autoclave after vacuumizing, removes vacuum bag after hot pressing, remove release cloth, it is complete after the demoulding
Made into monocoque body.
It is preferred that, using honeycomb aluminum and PVC structural foams as sandwich, specifically, the material of honeycomb aluminum is 5052 aluminium, honeybee
Lattice length of side 4mm, wall thickness 0.1mm.Foam is PVC structural foams, density 80kg/m3.The thickness of laminboard layer 3 have 15mm, 20mm,
25mm。
It is be bonded using structure glue progress between laminboard layer 3 and laminboard layer 3, it is preferred that to use DP460 epoxy resin structurals
Glue.
It is preferred that, the glued membrane 4 between honeycomb aluminum and carbon fiber skin uses epoxy jelly membrane 4.
A kind of Testing Method of Safety of electronic racing car monocoque body, the Testing Method of Safety is tried including material
Test and sunykatuib analysis, the testing of materials is the body material test specimen 25 for taking the above-mentioned monocoque body of polylith, then to vehicle body material
Expect that test specimen 25 carries out three-point bend test and circumferential shear test；
The three-point bend test uses microcomputer controlled electronic universal tester, particularly, is meeting the feelings of experimental condition
Also other testing machines can be used under condition；Loading seaming chuck is the hemispheric sphere the column indenter indentation 23 in end, and its radius is R1=(50
± 0.5) mm, bearing is that the radius of fillet bearing 24 is r1=(5 ± 0.1) mm, bearing span L=400mm, loading seaming chuck feeding
Measure as 5mm/min, comprise the following steps that：
A. the outward appearance of body material test specimen 25 and state are checked, it is intact certified products to confirm body material test specimen 25；
B. qualified body material test specimen 25 is numbered, rule, the middle(-)third of measurement body material test specimen 25 across
Thickness h away from any 3 points, takes arithmetic mean of instantaneous value, and computational accuracy is 0.01mm；
C. the position of regulation span L and seaming chuck, accurately to 0.5mm, loads seaming chuck and is located in the middle of bearing, and make pressure
Head is parallel with the chamfering face of cylinder axis of bearing；
D. the tension face of mark body material test specimen 25, body material test specimen 25 is symmetrically placed on two bearings；
E. the instrument for measuring deformation is placed at span centre, contacted with the lower surface of body material test specimen 25, application is preloaded,
Check and adjustment instrument, whole system is in normal condition；
F. body material test specimen 25 is continuously loaded, until reaching maximum load, and load declines 30% from maximum load
Stop experiment；
G. experiment 10 times is repeated according to above-mentioned steps, calculates the related mechanics parameter such as modulus of shearing, exclude abnormal data,
Take arithmetic mean of instantaneous value.
The circumferential shear test uses compression test, particularly, can also be used in the case where meeting experimental condition
Other testing machines.Loading seaming chuck should be the flat punch 26 of cylinder, and the end of flat punch 26 is plane, cylinder diameter be φ=
(25 ± 0.1) mm, cylinder material selects 40Cr；Bearing is the hollow circuit cylinder platform 27 of an aluminum, hollow circuit cylinder platform 27
Radius is R2Circle hole radius in the middle of=(50 ± 0.5) mm, hollow circuit cylinder platform 27 are r2=(16 ± 0.1) mm, cylinder and circle
Hole coaxial line；It is 20mm/min to load the seaming chuck amount of feeding, is comprised the following steps that：
A. the outward appearance of body material test specimen 25 and state are checked, it is intact certified products to confirm body material test specimen 25；
B. qualified body material test specimen 25 is numbered, rule, random order in any three side of measurement body material test specimen 25
The thickness put, takes arithmetic mean of instantaneous value, and computational accuracy is 0.01mm；
C. loading seaming chuck is located in the middle of bearing, and makes the face of cylinder coaxial line of loading seaming chuck and bearing；
D. the tension face of mark body material test specimen 25, body material test specimen 25 is symmetrically placed on bearing；
E. body material test specimen 25 is continuously loaded, until body material test specimen 25 is completely penetrated；
F. experiment 10 times is repeated according to above-mentioned steps, the load-deflection curve recorded according to equipment calculates elasticity of flexure mould
Amount mechanics parameter related to maximum stress in bend etc., excludes abnormal data, takes arithmetic mean of instantaneous value.
The sunykatuib analysis comprises the following steps：
(1) after the testing of materials terminates, constantly laying scheme is optimized according to result that is measured or calculating, selected
Go out the more excellent design of monocoque body respective regions；
(2) racing car appearance and modeling modeling is carried out with 3 d modeling software CATIA, ALIAS；
(3) measured by the testing of materials or obtained mechanics parameter will be calculated it is input in ANSYS, with ANSYS to racing car
Vehicle various working simulated, carried out so as to adjust electronic racing car each region laying and corresponding construction under various working
Improve；
(4) ply sequence is improved with after structure, meeting monocoque body mechanical property according to software sunykatuib analysis result
Design requirement, i.e., under various working, monocoque body any part deformation quantity is no more than 25mm, and any one structure division is not
Fail.
In addition, those skilled in the art can also make other changes in spirit of the invention, these are according to present invention essence certainly
The change that god is made, should all be included in scope of the present invention.
Claims (10)
1. a kind of ply sequence of electronic racing car monocoque body, it is characterised in that：Make the body material of the monocoque body
Combined by two layers of carbon fiber skin and laminboard layer, the laminboard layer is honeycomb aluminum or PVC structural foams, according to different knots
Monocoque body is divided into polylith region difference on polylith region, monocoque body and uses six kinds altogether by structure and mechanical property requirements
Carbon fiber skin ply sequence, different zones and the ply sequence corresponding relation of monocoque body are shown in Table in 1, every kind of ply sequence
Carbon fibre initial rinse fabric ply stacking-sequence is shown in Table 2：
The ply sequence that the different zones of the monocoque body of table 1. are used
Table 2
In table 2：It is honeycomb aluminum, Core that Core, which represents sandwich layer material,PVCIt is PVC structural foams to represent sandwich layer material；
It after inner first layer carbon fiber skin ply stacking-sequence, Core or CorePVC is outer to be before Core or CorePVC
Second layer carbon fiber skin ply stacking-sequence, with/represent interval between carbon fibre initial rinse fabric laying in carbon fiber skin；
Above there is the expression ply stacking angle of numeral in each carbon fibre initial rinse fabric laying, 0,45 and 90 represent carbon fibre initial rinse respectively
Cloth is laid for 0 degree, 45 degree and 90 degree along machine direction；
In each carbon fibre initial rinse fabric laying, there is F to represent plain, F is not marked for unidirectional cloth；
In each carbon fibre initial rinse fabric laying, cloth of the same race two layers of carbon fibre initial rinse fabric of continuous laying is represented at additional subscript, is not had
There is the only laying individual layer carbon fibre initial rinse fabric of subscript；
Angle explanation：It is 0 ° of direction along body structure to the horizontal axis of rear end, angle is positive and negative to be defined as：Offset up as just,
It is negative to offset downward as negative or skew to the left, and skew is just to the right.
2. the ply sequence of electronic racing car monocoque body according to claim 1, it is characterised in that：In monocoque body
Upper built-in fitting load tie point laying carries out local reinforcement, and the ply stacking-sequence of strengthening course is：0/90/45/-45, the strengthening course pair
Title is added on inside and outside two layers of carbon fiber skin.
3. a kind of manufacture method of electronic racing car monocoque body as claimed in claim 1, it is characterised in that this will be constituted and held
Inside and outside two layers of carbon fiber skin of load formula vehicle body is designated as first layer carbon fiber skin and second layer carbon fiber skin respectively, specific system
Make method as follows：
Step 1: the die surface in manufacture monocoque body coats releasing agent；
Step 2: corresponding position requires to carry out multilayer carbon fiber according to different on mould according to carbon fiber skin Lay up design
Prepreg cloth is coated with, and forms first layer carbon fiber skin；
Step 3: being coated with release cloth on the first layer carbon fiber skin surface being coated with；
Step 4: the above-mentioned mould for being coated with first layer carbon fiber skin is put into vacuum bag, and vacuumized by vavuum pump,
Test vacuum, which is met, afterwards requires；
Step 5: the mould that first layer carbon fiber skin is covered after above-mentioned vacuumize to be put into hot-forming in autoclave, heat
Vacuum bag is removed after pressure, release cloth is removed, the monocoque body of first layer carbon fiber skin composition is obtained；
Step 6: being all coated with glued membrane on the first layer carbon fiber skin surface for removing release cloth, aluminium honeybee is coated with glued membrane
It is connected between nest, aluminium honeycomb by structure glue；
Step 7: according to above-mentioned monocoque body carbon fiber skin Lay up design, on the aluminium honeycomb surface of mould respective regions
Require that carrying out carbon fibre initial rinse fabric is coated with, and forms second layer carbon fiber skin according to different；
Step 8: being coated with release cloth on the second layer carbon fiber skin surface being coated with；
Step 9: the mould for being coated with second layer carbon fiber skin is put into vacuum bag according to above-mentioned steps four and step 5 method
In, it is put into hot-forming in autoclave after vacuumizing, removes vacuum bag after hot pressing, remove release cloth, carrying is completed after the demoulding
Formula vehicle body makes.
4. the manufacture method of electronic racing car monocoque body as claimed in claim 3, it is characterised in that：In step one, in mould
Have surface coating is chemical releasing agent six layers thin, per minimum interval 15 minutes, last stratification between stratification releasing agent
Next step can just be carried out after at least being wanted 1 hour after releasing agent is painted with by learning.
5. the manufacture method of electronic racing car monocoque body as claimed in claim 3, it is characterised in that：Step 4 neutralization procedure
Nine, have on monocoque body surface at the injustice of turning, vacuum bag is folded, keep vacuum bag and the carbon fiber covered with release cloth
Skin-surface is smooth to be in close contact.
6. the manufacture method of electronic racing car monocoque body as claimed in claim 3, it is characterised in that：In step 4, right
The vacuum monitor duration is not less than 20 minutes after bag vacuum.
7. the manufacture method of electronic racing car monocoque body as claimed in claim 3, it is characterised in that：Step 5 and step 9
In, hot pressing is carried out using the technological parameter set in autoclave, and actual temp parameter is：Constant-speed heating is warming up in 2 minutes
Constant-speed heating is warming up to 85 DEG C in 15 DEG C, 30 minutes, is kept for 85 DEG C, constant temperature time be in 50-90 minutes, afterwards 13 minutes at the uniform velocity
120 DEG C are heated to, is kept for 120 DEG C, constant temperature time is at the uniform velocity to cool to 60 DEG C in 100-150 minutes, last 12 minutes；Pressure
Force parameter runs for 0KPa and 200KPa is at the uniform velocity pressurized in 2-5 minutes, 2 minutes, keeps 200KPa, constant voltage time is 210-260
Minute, at the uniform velocity it is depressured to 0KPa in 2 minutes afterwards.
8. the manufacture method of electronic racing car monocoque body as claimed in claim 3, it is characterised in that：In step 8,
The suction rubber mat of Excess resin on carbon fibre initial rinse fabric can be absorbed by being coated with one layer on the release cloth on two layers of carbon fiber skin surface again.
9. a kind of Testing Method of Safety of electronic racing car monocoque body as claimed in claim 1, it is characterised in that should
Testing Method of Safety includes the testing of materials, and the testing of materials is that the body material for taking the above-mentioned monocoque body of polylith is tried
Part, then carries out three-point bend test to body material test specimen and circumferential shear is tested；
The three-point bend test uses microcomputer controlled electronic universal tester, and loading seaming chuck is the hemispheric sphere circle in end
Post pressure head, its radius is R1, bearing is that fillet bearing radius is r1, bearing span L=400mm, loading the seaming chuck amount of feeding is
5mm/min, is comprised the following steps that：
A. body material test specimen outward appearance and state are checked, it is intact certified products to confirm body material test specimen；
B. by qualified body material test specimen numbering, line, measurement body material test specimen middle(-)third span any three
The thickness h of point, takes arithmetic mean of instantaneous value, computational accuracy is 0.01mm；
C. regulation span L and seaming chuck position, accurately to 0.5mm, loading seaming chuck be located at bearing in the middle of, and make seaming chuck and
The chamfering face of cylinder axis of bearing is parallel；
D. body material test specimen tension face is marked, body material test specimen is symmetrically placed on two bearings；
E. by measure deformation instrument be placed at span centre, contacted with body material test specimen lower surface, application is preloaded, check and
Instrument is adjusted, whole system is in normal condition；
F. body material test specimen is continuously loaded, until reaching maximum load, and load declines 30% from maximum load and stops examination
Test；
G. experiment 10 times is repeated according to above-mentioned steps, calculates modulus of shearing, excluded abnormal data, take arithmetic mean of instantaneous value；
The circumferential shear test uses compression test, and loading seaming chuck should be the flat punch of cylinder, and flat punch end is
Plane, cylinder diameter is φ, and bearing is the hollow circuit cylinder platform of an aluminum, and the radius of hollow circuit cylinder platform is R2, hollow circle
Circle hole radius in the middle of post platform are r2, cylinder and circular hole coaxial line；It is 20mm/min to load the seaming chuck amount of feeding, specific step
It is rapid as follows：
A. body material test specimen outward appearance and state are checked, it is intact certified products to confirm body material test specimen；
B. by qualified body material test specimen numbering, line, the thickness of random site in any three side of measurement body material test specimen,
Arithmetic mean of instantaneous value is taken, computational accuracy is 0.01mm；
C. loading seaming chuck is located in the middle of bearing, and makes the face of cylinder coaxial line of loading seaming chuck and bearing；
D. body material test specimen tension face is marked, body material test specimen is symmetrically placed on bearing；
E. body material test specimen is continuously loaded, until body material test specimen is completely penetrated；
F. according to above-mentioned steps repeat experiment 10 times, the load-deflection curve recorded according to equipment, calculate the modulus of elasticity in static bending and
Maximum stress in bend, excludes abnormal data, takes arithmetic mean of instantaneous value.
10. the Testing Method of Safety of electronic racing car monocoque body as claimed in claim 9, it is characterised in that described
Testing Method of Safety also includes sunykatuib analysis, concretely comprises the following steps：
(1) after the testing of materials terminates, constantly laying scheme is optimized according to result that is measured or calculating, selects and holds
The more excellent design of load formula vehicle body respective regions；
(2) racing car appearance and modeling modeling is carried out with 3 d modeling software CATIA, ALIAS；
(3) measured by the testing of materials or obtained mechanics parameter will be calculated it is input in ANSYS, with ANSYS to the whole of racing car
Car various working is simulated, and is changed so as to adjust electronic racing car each region laying and corresponding construction under various working
It is kind；
(4) ply sequence is improved with after structure, making monocoque body mechanical property meet design according to software sunykatuib analysis result
It is required that, i.e., under various working, monocoque body any part deformation quantity is no more than 25mm, and any one structure division is occurred without
Failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657446.5A CN107283872B (en) | 2017-08-03 | 2017-08-03 | A kind of ply sequence and manufacturing method of electronic racing car monocoque body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710657446.5A CN107283872B (en) | 2017-08-03 | 2017-08-03 | A kind of ply sequence and manufacturing method of electronic racing car monocoque body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107283872A true CN107283872A (en) | 2017-10-24 |
| CN107283872B CN107283872B (en) | 2019-06-25 |
Family
ID=60104382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710657446.5A Active CN107283872B (en) | 2017-08-03 | 2017-08-03 | A kind of ply sequence and manufacturing method of electronic racing car monocoque body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107283872B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932931A (en) * | 2017-12-20 | 2018-04-20 | 大连交通大学 | A kind of efficient carbon fiber cladding process of large area |
| CN109018024A (en) * | 2018-07-19 | 2018-12-18 | 广东工业大学 | A kind of FSE racing body |
| CN109203562A (en) * | 2018-09-20 | 2019-01-15 | 彭灿 | A method of improving binding paper box intensity |
| CN109755429A (en) * | 2018-12-19 | 2019-05-14 | 华侨大学 | A kind of antidetonation energy-absorbing battery case of high efficiency and heat radiation |
| CN110001182A (en) * | 2019-04-04 | 2019-07-12 | 北京卫星制造厂有限公司 | The preparation method of recoverable airship solar heat protection big bottom structure integrated with carrying |
| CN110001089A (en) * | 2019-04-15 | 2019-07-12 | 营口市飞龙碳纤维电动车有限公司 | Motorcycle integrated vehicle body and preparation method thereof |
| CN110749460A (en) * | 2019-11-25 | 2020-02-04 | 清华大学苏州汽车研究院（相城） | Collision trolley energy absorption structure suitable for multiple working conditions |
| CN110775171A (en) * | 2019-11-13 | 2020-02-11 | 合肥工业大学 | Formula car hollow wing piece and forming method thereof |
| CN111504782A (en) * | 2020-04-30 | 2020-08-07 | 同济大学 | Method for evaluating energy absorption performance of energy absorption pad with porous structure of automobile battery by compression test method |
| CN111639389A (en) * | 2020-04-30 | 2020-09-08 | 同济大学 | Method for evaluating energy absorption performance of porous structure |
| CN111859756A (en) * | 2020-07-20 | 2020-10-30 | 湖北汽车工业学院 | Three-dimensional modeling-based alternative frame simulation method and system |
| CN113400669A (en) * | 2021-05-27 | 2021-09-17 | 航天辰马(宁波)新材料有限公司 | Manufacturing method of high-energy-absorption honeycomb panel for lightning-proof vehicle floor |
| CN113787783A (en) * | 2021-08-27 | 2021-12-14 | 威海光晟航天航空科技有限公司 | Rear room structure for spherical screen and preparation method thereof |
| CN115246451A (en) * | 2021-04-26 | 2022-10-28 | 北京航空航天大学 | Car body of racing car, preparation method of car body and formula car |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744889A (en) * | 2012-07-06 | 2012-10-24 | 内蒙古金岗重工有限公司 | Carbon fiber hybrid resin-base composite material foam sandwich structure and preparation technique thereof |
| CN103979016A (en) * | 2014-05-16 | 2014-08-13 | 东莞中山大学研究院 | Lightweight electric vehicle body skeleton |
-
2017
- 2017-08-03 CN CN201710657446.5A patent/CN107283872B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744889A (en) * | 2012-07-06 | 2012-10-24 | 内蒙古金岗重工有限公司 | Carbon fiber hybrid resin-base composite material foam sandwich structure and preparation technique thereof |
| CN103979016A (en) * | 2014-05-16 | 2014-08-13 | 东莞中山大学研究院 | Lightweight electric vehicle body skeleton |
Non-Patent Citations (1)
| Title |
|---|
| 余海燕，徐豪: "大学生方程式赛车复合材料单体壳车身优化", 《同济大学学报（自然科学版）》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107932931A (en) * | 2017-12-20 | 2018-04-20 | 大连交通大学 | A kind of efficient carbon fiber cladding process of large area |
| CN109018024A (en) * | 2018-07-19 | 2018-12-18 | 广东工业大学 | A kind of FSE racing body |
| CN109203562A (en) * | 2018-09-20 | 2019-01-15 | 彭灿 | A method of improving binding paper box intensity |
| CN109755429B (en) * | 2018-12-19 | 2021-08-31 | 华侨大学 | High-efficient radiating antidetonation energy-absorbing battery box |
| CN109755429A (en) * | 2018-12-19 | 2019-05-14 | 华侨大学 | A kind of antidetonation energy-absorbing battery case of high efficiency and heat radiation |
| CN110001182A (en) * | 2019-04-04 | 2019-07-12 | 北京卫星制造厂有限公司 | The preparation method of recoverable airship solar heat protection big bottom structure integrated with carrying |
| CN110001089A (en) * | 2019-04-15 | 2019-07-12 | 营口市飞龙碳纤维电动车有限公司 | Motorcycle integrated vehicle body and preparation method thereof |
| CN110775171A (en) * | 2019-11-13 | 2020-02-11 | 合肥工业大学 | Formula car hollow wing piece and forming method thereof |
| CN110775171B (en) * | 2019-11-13 | 2024-05-17 | 合肥工业大学 | Formula car hollow wing and forming method thereof |
| CN110749460A (en) * | 2019-11-25 | 2020-02-04 | 清华大学苏州汽车研究院（相城） | Collision trolley energy absorption structure suitable for multiple working conditions |
| CN111504782A (en) * | 2020-04-30 | 2020-08-07 | 同济大学 | Method for evaluating energy absorption performance of energy absorption pad with porous structure of automobile battery by compression test method |
| CN111639389A (en) * | 2020-04-30 | 2020-09-08 | 同济大学 | Method for evaluating energy absorption performance of porous structure |
| CN111859756A (en) * | 2020-07-20 | 2020-10-30 | 湖北汽车工业学院 | Three-dimensional modeling-based alternative frame simulation method and system |
| CN111859756B (en) * | 2020-07-20 | 2023-12-01 | 湖北汽车工业学院 | Three-dimensional modeling-based alternate vehicle frame simulation method and simulation system |
| CN115246451A (en) * | 2021-04-26 | 2022-10-28 | 北京航空航天大学 | Car body of racing car, preparation method of car body and formula car |
| CN115246451B (en) * | 2021-04-26 | 2023-07-28 | 北京航空航天大学 | Automobile body of racing automobile, preparation method of automobile body and formula racing automobile |
| CN113400669A (en) * | 2021-05-27 | 2021-09-17 | 航天辰马(宁波)新材料有限公司 | Manufacturing method of high-energy-absorption honeycomb panel for lightning-proof vehicle floor |
| CN113787783A (en) * | 2021-08-27 | 2021-12-14 | 威海光晟航天航空科技有限公司 | Rear room structure for spherical screen and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107283872B (en) | 2019-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107283872B (en) | A kind of ply sequence and manufacturing method of electronic racing car monocoque body | |
| Mania et al. | Comparative study of FML profiles buckling and postbuckling behaviour under axial loading | |
| Centea et al. | A review of out-of-autoclave prepregs–Material properties, process phenomena, and manufacturing considerations | |
| US6735866B2 (en) | Method for manufacturing elements of composite materials by the co-bonding technique | |
| CN110171183B (en) | Positioning and pressure-equalizing device containing embedded part honeycomb sandwich structure and forming method | |
| Thomas et al. | In situ estimation of through-thickness resin flow using ultrasound | |
| CN106827557B (en) | Composite material is glued reinforced structure and is glued face compensation method altogether | |
| US20160121553A1 (en) | Apparatus for and method of compaction of a prepreg | |
| EP2886311B1 (en) | Three-dimensional reuseable curing caul for use in curing integrated composite components and method of making the same | |
| Dahmen et al. | Fabrication of hybrid composite T-joints by co-curing with 3D printed dual cure epoxy | |
| CN111859756A (en) | Three-dimensional modeling-based alternative frame simulation method and system | |
| Arıkan et al. | Improvement of load carrying capacity of sandwich composites by different patch repair types | |
| CN114347508A (en) | Preparation process of carbon fiber composite material airplane longitudinal member | |
| Sebastian | Fibre waviness in pultruded bridge deck profiles: Geometric characterisation and consequences on ultimate behaviour | |
| CN102426200B (en) | Covering and sandwiched core gluing structure defect contrast sample | |
| Roy | Porosity in configured structures: effect of ply drops and caul sheets in the processing of composite parts | |
| JPH08169057A (en) | Adhesive jig and manufacture thereof | |
| CN115675824A (en) | Processing technology of hard cover plate at stringer end and hat-shaped stringer stiffened co-cured wallboard | |
| CN115339120A (en) | Forming process and quality inspection method of fiber-metal super-hybrid groove-shaped component | |
| Duffner | Experimental study of the pre-gelation behaviour of composite prepreg | |
| Cannon | The effects of ply dropoffs on the tensile behavior of graphite/epoxy laminates | |
| SzymańSki | Quality control process of manufactured composite structures | |
| Fergusson et al. | Flexural testing of composite sandwich structures with digital speckle photogrammetry | |
| Kelkar et al. | Introduction to low cost manufacturing of composite laminates | |
| Baucom | Processing composite materials |
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 |