CN104590397B - Application method for section structure of lightweight car body - Google Patents
Application method for section structure of lightweight car body Download PDFInfo
- Publication number
- CN104590397B CN104590397B CN201510012934.1A CN201510012934A CN104590397B CN 104590397 B CN104590397 B CN 104590397B CN 201510012934 A CN201510012934 A CN 201510012934A CN 104590397 B CN104590397 B CN 104590397B
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- Prior art keywords
- intermediate layer
- vehicle body
- layer
- lower frame
- core
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
- B62D29/005—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material preformed metal and synthetic material elements being joined together, e.g. by adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a lightweight car body structure, which comprises a core layer (300), a middle layer (200) and an outer layer (100), wherein the core layer (300) is a support framework which is made of aluminum magnesium alloy, the core layer (300) is of a hollow structure of which the section is in a circular, quadrilateral or hexagonal shape; the middle layer (200) is made of plastic, the middle layer is made into a rib structure through a 3D (three dimensional) print technology, and the rib structure is of a honeycomb structure, a mesh structure or a spatial cell body structure; the outer layer (100) is formed by adhering a carbon fiber sheet to the surface of the resin material. In the invention, the weight of the car body is reduced; the high-polymer carbon fiber material and the aluminum magnesium alloy are rationally applied to the structure design of the car body, and properly replace the previous sheet metal structure material; in the condition of guaranteeing the safe strength and rigidity property, the weight of the car body is reduced and the fuel consumption is reduced.
Description
Technical field
The present invention relates to a kind of body of a motor car section structure, more particularly to a kind of light-weighted vehicle body section structure and its make
Use method.
Background technology
As " energy-conserving and environment-protective " have increasingly becomed the topic of extensive concern, lightweight is also widely applied to general-utility car neck
Domain, can also there is outstanding fuel-economizing performance while improving handling.The oil consumption of automobile depend primarily on engine discharge capacity and
The gross mass of automobile, on the premise of keeping automobile overall quality, performance and cost constant or even optimizing, reduces automobile itself weight
Amount can improve power output, reduce noise, lifts handling, reliability, improve speed, reduce oil consumption, reduce waste gas discharge
Amount, lifting security.There is research numerical monitor, if vehicle complete vehicle weight reduction 10%, fuel efficiency can improve 6%-8%；If
Rolling resistance reduces 10%, and fuel efficiency can improve 3%；If the transmission efficiency of the devices such as vehicle bridge, speed changer improves 10%, fuel oil
Efficiency can improve 7%.Body of a motor car accounts for the 30% of automobile gross mass, and under no-load condition, about 70% oil consumption is used in vehicle body matter
In amount.Therefore, vehicle body lightens all of great advantage for the fuel economy of car load, wagon control stability, crashworthiness.
The lightweight of automobile, is exactly on the premise of the intensity and security performance of automobile is ensured, automobile to be reduced as much as possible
Kerb weight, so as to improve the dynamic property of automobile, reduce fuel consumption, reduce exhaust pollution.If it is demonstrated experimentally that vehicle complete vehicle
Weight reduction 10%, fuel efficiency can improve 6% -8%；Automobile kerb weight often reduces 100 kilograms, and fuel consumption per hundred kilometers can drop
It is low 0.3-0.6 liter；Vehicle weight reduces by 1%, and oil consumption can reduce by 0.7%.Currently, due to environmental protection and the needs of energy-conservation, automobile
Lightweight has become the trend of world car development.
Nowadays the main path of automotive light weight technology is as follows：
(1) to the optimization design of body structure：Automobile primary traffic specification vehicle Continuous optimization, what specification principal parameter size retained
Under the premise of, complete vehicle structure intensity is lifted, reduce consumptive material consumption；
(2) light material is adopted：Such as aluminium, magnesium, ceramics, plastics, glass fibre or carbon fibre composite；
(3) structure design is carried out using computer：Such as designed using finite element analysis, local strengthening；
(4) monocoque body is adopted：Thinning vehicle body sheet thickness etc.；
(5) advanced technologies are adopted：Such as vehicle body is built and is linked together by welding, adhesive technology.
Above lightweight approach is, for existing sheet metal structural vehicle body, to be used by reduction or control sheet metal whole to adjust
Car weight amount.Its related potential excavates the nearly lowest limit, and patent of the present invention is devoted to a kind of more reasonably body structure form of design,
Reach the purpose of Vehicle mass reduction.
However, the following defect of automotive light weight technology method for designing generally existing of prior art：
(1) substantial amounts of transition flange or welding scrap (bridge) in traditional panel beating vehicle body, there is non-utility function structure causes material
The waste of material, and cost and assembly difficulty are larger.
(2) non-solder snap-in position in traditional panel beating vehicle body, often have on a large scale panel beating without related support structure so that this
It is recessed after the easy stress of a little positions panel beating thin-walled.Affect structural strength and human body sense organ.For example car door, hair net, ceiling have anti-recessed
Property intensity requirement, the satisfaction of dent resistance intensity certainly will increase thickness of slab or set up gusset or complex-curved structure sacrifices lightweight
Achievement.
(3) need to consider manufacture craft in a large number during traditional panel beating vehicle body design, sheet-metal press working shape and depth have it
Technological limits, such as flange shaped negative angle structures cannot design enforcement.
(4) traditional sheet metal structural collision energy-absorbing, crushed areas predominantly reasonable in design and guiding Path of Force Transfer.Reality is because of face
Shape splicing construction energy-absorbing is extremely limited, and the present invention fundamentally increased endergonic structure distribution and size.
(5) traditional panel beating vehicle body sound insulation, heat-insulating property are not enough.Human body sense organ is affected, on-board air conditioner load is larger, energy profit
It is not high with rate.
The content of the invention
It is contemplated that designing a kind of synthesis uses various composites and the efficient lightweight vehicle body with technology
Section structure.
A kind of lightweight body structure of offer, including core layer, intermediate layer, extexine are provided, its
In：
Core layer is the support frame that almag is constituted, and core layer is hollow structure, and its cross sectional shape is circular, four sides
Shape or hexagon；
Intermediate layer is made up of plastic material, and bead structures are made in intermediate layer by 3D printing technique, and the bead structures are
Honeycomb, network structure or space cell structure；
Extexine is formed by resin material outside patch carbon fiber sheet.
The beneficial effects of the present invention is：
1st, good looking appearance, novelty, the lotus-like structure naturally occurred from nature obtains inspiration, and it is slightly repaiied
Change, keep the graceful camber line of its profile excessive so that body structural member profile is more mellow and fuller, more curve aesthetic feeling.
2nd, adopt material, body quality to mitigate, carbon fiber macromolecular material and almag are reasonably applied to into vehicle body
Structure design on, it is appropriate substitute before sheet metal structural material, under the premise of the intensity and toughness performance for ensureing safety so that car
The quality of body is mitigated, and oil consumption is reduced.
3rd, using advanced 3d printing techniques, 3d printing techniques are applied on body structural member, solve traditional vehicle body
Design closure member cannot be applied manufacturing and break part obtains the drawbacks of weakening on intensity and toughness so that original design
The performance of structural member gets a promotion under form.
4th, texture is excellent, and the filler of vehicle body weight causes automobile to change original hollow sensation, and vehicle body feels more solid.
5th, noise isolating is with better function, and the plastic filler in section causes noise to be weakened in way is propagated so that occupant
Possess more comfortable quietly environment in cabin, compare traditional sheet metal structural vehicle body, this vehicle body section structure is mainly with magnalium conjunction
Gold, carbon fibre material are aided with plastic rubber connector, effectively strengthen the bending rigidity of vehicle body, and mitigate body quality.
Description of the drawings
Fig. 1 is that body structure section of the present invention and cell structure are illustrated.
Fig. 2 is according to a kind of suitable application region of body structure of the present invention.
Application sectional schematic diagram of Fig. 3 present configurations in vehicle body lower-edge beam.
Fig. 4 present configurations are in car door application structure schematic diagram.
Fig. 5 present configurations are in hood application structure schematic diagram.
Wherein：100 extexines, 200 intermediate layers, 300 core layers
1- hoods；2- car body side bars；3- car doors；4- vehicle body front stall doorframe lower frame section extexines；Before 5- vehicle bodies
Seat doorframe lower frame section intermediate layer；6- vehicle body front stall doorframe lower frame section core layers；7- door accessories；8- car door core bones
Frame；9- car doors intermediate layer；10- car door extexines；11- hood extexines；12- hoods intermediate layer.
Specific embodiment
It is described in detail below with reference to the concrete technical scheme of Fig. 1 to the 5 couple of present invention.
As shown in figure 1, the present invention provides a kind of lightweight body structure, vehicle body each functional area is can be widely used for：
The structure can large-scale cavity and structural support, vehicle body support side bar, column, such as car body side bar 2.In addition the structure
Can be used for labyrinth functional unit, such as car door 3；May be also used in large area thin-walled functor, such as hood 1 etc..
Appearance is only coordinated by the interlayer structure of rationally arrangement rib and filling mode without the need for core skeleton using the structure of the present invention
Layer, you can obtain preferable dent resistance energy, and can accomplish higher bulk strength, obtains preferable collision energy-absorbing effect.
As shown in Fig. 2 a kind of lightweight body structure of the present invention, including core layer 300, intermediate layer 200, extexine
100, wherein：
Core layer 300 is almag or other high-strength structure materials as support frame, and core layer 300 is made hollow
Variously-shaped, such as circle, quadrangle, hexagon, as far as possible suitable rigidity requirement is reached with the material of light weight；
Intermediate layer 200 is moderate strength, and the less plastic material of density is made, and can make it using 3D printing technique complicated
Bead structures, as shown in figure 3, its structure can be honeycomb, network structure, space cell structure, while intermediate layer 200
Breakaway-element or other various forms can as needed be made；
Extexine 100 is made up of the resin material outside patch carbon fiber sheet of high intensity.
The extexine can be obtained by the production technology of prior art.Representative production technology has carbon fiber to contact low pressure molding
Technique, manual pasting forming process.It is characterized in that the manual of carbon fibre reinforcement lays and resin immersion, using vacuum bag or craft
Excess resin is discharged in extruding, obtains the carbon fiber surface Rotating fields of compact.
As shown in figure 3, present configuration is used for the method for building threshold side bar under car door, specific design embodiment is such as
Under：
Step 1, vehicle body front stall doorframe lower frame section 6 skeletons of core layer are complete through process meanses such as roll bending, stretching, pressing molds
Forming shape is constituted；
Step 2, the frame of vehicle body front stall doorframe lower frame section core layer bone 6 cross fixture mount sizing adjustment and are cut to size rule
Lattice；
Step 3, that the skeleton of vehicle body front stall doorframe lower frame section core layer 6 is placed in car load assembling jig is stand-by；
Step 4,3D printing vehicle body front stall doorframe lower frame section intermediate layer 5；
Step 5, complete 3D printing vehicle body front stall doorframe lower frame section intermediate layer 5 and assemble, core is coated using make-up form
Central layer skeleton, or 3D printing intermediate layer is directly inserted in vehicle body front stall doorframe lower frame section core layer 6, take auxiliary gluing or
Die mould positioning strengthens the bonding strength of core layer 6 and intermediate layer 5；
Step 6, by vehicle body front stall doorframe lower frame section intermediate layer 5 and vehicle body front stall doorframe lower frame section core layer 6
The assembly of composition, as bodywork component.Vehicle body entirety is constituted by bolt, bonding etc., technique type of attachment；
Step 7, vehicle body front stall doorframe lower frame section extexine 4 use carbon fiber manual pasting forming process, resin infiltration hand
Work patch applies laying high-strength degree carbon cloth；
Step 8, outward appearance japanning sanding and polishing.
As shown in figure 4, present configuration is used for the method for building car door door body, specific design embodiment is as follows：
Step 1, car door core skeleton 8 complete shape and constitute by process meanses such as roll bending, stretching, pressing molds.
Step 2, car door core skeleton 8 are cut to dimensions by fixture mount sizing adjustment.
Step 3, that car door core skeleton 8 is positioned over car load assembling jig is stand-by.
It is prepared by step 4,3D printing car door intermediate layer 9.
Step 5,3D printing car door intermediate layer 9 are assembled, using make-up form cladding car door core skeleton 8.Take auxiliary glue
Viscous or die mould positioning strengthens core layer and intermediate layer bonding strength.
The assembly that step 6, car door intermediate layer 9 are constituted with car door core skeleton 8, as bodywork component, by bolt, glues
Connect etc., technique type of attachment constitutes vehicle body entirety.
Step 7, the suitable fitting of door of shunting of installation.
Step 8, using carbon fiber cladding process, the manual patch of resin infiltration applies laying high-strength degree carbon cloth.
Step 9, outward appearance japanning sanding and polishing.
As shown in figure 5, present configuration is used for the method for building hood, specific design embodiment is as follows：
Step 1,3D printing hood intermediate layer 12.
Step 2, the assembling of 3D printing hood intermediate layer 12 adopt special fixture spelling group hood intermediate layer 12.
Step 3, installation are fitted and readjust the distribution cover upper lock body, hinge annex.
Step 4, using carbon fiber manual pasting forming process, the manual patch of resin infiltration applies laying high-strength degree carbon cloth.
Step 5, outward appearance japanning sanding and polishing.
As can be seen here, the present invention breaks through the limitation of traditional sheet metal structural vehicle body, there is provided a kind of stiffness and strength is adapted to actually make
With situation, while and the body structure form of fracture of body lightening requirement can be met.
Claims (2)
1. a kind of lightweight body structure is used for the method for building vehicle body front stall doorframe lower frame, it is characterised in that：The light weight
Changing body structure includes core layer (300), intermediate layer (200), extexine (100), wherein：
The support frame that core layer (300) is constituted for almag, core layer (300) is hollow structure, and its cross sectional shape is circle
Shape, quadrangle or hexagon；
Intermediate layer (200) is made up of plastic material, and bead structures are made in intermediate layer by 3D printing technique, and the bead structures are
Honeycomb, network structure or space cell structure；
Extexine (100) is formed for the laying of high-strength carbon fiber cloth；
Concrete steps include：
Step 1, vehicle body front stall doorframe lower frame section core layer (6) skeleton complete knot through roll bending, stretching, stamping technique means
Configuration shape；
Step 2, vehicle body front stall doorframe lower frame section core layer (6) skeleton are shaped, adjust, are cut to size by fixture mount
Specification；
Step 3, that vehicle body front stall doorframe lower frame section core layer (6) skeleton is placed in car load assembling jig is stand-by；
Step 4,3D printing vehicle body front stall doorframe lower frame section intermediate layer (5)；
Step 5, complete 3D printing vehicle body front stall doorframe lower frame section intermediate layer (5) assembling, using make-up form coat core
Vehicle body front stall doorframe lower frame section core layer (6) is directly inserted in 3D printing intermediate layer by layer skeleton；
Step 6, by vehicle body front stall doorframe lower frame section intermediate layer (5) and vehicle body front stall doorframe lower frame section core layer (6)
The assembly of composition, as bodywork component；
Step 7, vehicle body front stall doorframe lower frame section extexine (4) are infiltrated using carbon fiber manual pasting forming process by resin
Manual patch applies laying high-strength degree carbon cloth；
Step 8, outward appearance japanning sanding and polishing.
2. a kind of lightweight body structure is used for the method for building car door door body, it is characterised in that：The lightweight body structure
Including core layer (300), intermediate layer (200), extexine (100), wherein：
The support frame that core layer (300) is constituted for almag, core layer (300) is hollow structure, and its cross sectional shape is circle
Shape, quadrangle or hexagon；
Intermediate layer (200) is made up of plastic material, and bead structures are made in intermediate layer by 3D printing technique, and the bead structures are
Honeycomb, network structure or space cell structure；
Extexine (100) is formed for the laying of high-strength carbon fiber cloth；
Concrete steps include：
Step 1, car door core skeleton (8) complete planform by roll bending, stretching, stamping technique means；
Step 2, car door core skeleton (8) are shaped, adjust, are cut to dimensions by fixture mount；
Step 3, that car door core skeleton (8) is positioned over car load assembling jig is stand-by；
It is prepared by step 4,3D printing car door intermediate layer (9)；
Step 5,3D printing car door intermediate layer (9) assembling, using make-up form cladding car door core skeleton (8), and take auxiliary
Gluing or die mould positioning strengthens car door core skeleton (8) and intermediate layer (9) bonding strength；
The assembly that step 6, car door intermediate layer (9) are constituted with car door core skeleton (8), as bodywork component；
Step 7, the suitable fitting of door of shunting of installation；
Step 8, using carbon fiber cladding process, laying high-strength degree carbon cloth is applied by the manual patch of resin infiltration；
Step 9, outward appearance japanning sanding and polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012934.1A CN104590397B (en) | 2015-01-12 | 2015-01-12 | Application method for section structure of lightweight car body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510012934.1A CN104590397B (en) | 2015-01-12 | 2015-01-12 | Application method for section structure of lightweight car body |
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| CN104590397A CN104590397A (en) | 2015-05-06 |
| CN104590397B true CN104590397B (en) | 2017-05-10 |
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| SG10201806531QA (en) | 2014-07-02 | 2018-09-27 | Divergent Technologies Inc | Systems and methods for fabricating joint members |
| KR102612644B1 (en) * | 2015-08-31 | 2023-12-11 | 디버전트 테크놀로지스, 인크. | Systems and methods for vehicle subassembly and manufacturing |
| DE102015219784A1 (en) * | 2015-10-13 | 2017-04-13 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a component with a functional section for a vehicle and component with functional section |
| US9845115B2 (en) | 2016-02-19 | 2017-12-19 | Ford Global Technologies, Llc | One-piece closure member for a vehicle |
| US9718498B1 (en) | 2016-04-08 | 2017-08-01 | Ford Global Technologies, Llc | Vehicular body structure |
| CN106513572B (en) * | 2016-09-30 | 2018-10-19 | 共享智能装备有限公司 | 3D printing sand mold and its manufacturing method |
| CN108263496A (en) * | 2016-12-31 | 2018-07-10 | 郑州吉田专利运营有限公司 | Carbon fabric composite material vehicle skeleton and preparation method thereof |
| CN116968829A (en) * | 2016-12-31 | 2023-10-31 | 郑州泽正技术服务有限公司 | Whole car skeleton made of carbon fiber fabric composite material and preparation method thereof |
| CN116788370A (en) * | 2016-12-31 | 2023-09-22 | 郑州泽正技术服务有限公司 | Whole car skeleton made of carbon fiber fabric composite material and preparation method thereof |
| US10940609B2 (en) * | 2017-07-25 | 2021-03-09 | Divergent Technologies, Inc. | Methods and apparatus for additively manufactured endoskeleton-based transport structures |
| US10906236B2 (en) | 2018-01-25 | 2021-02-02 | Ford Global Technologies, Llc | Article with solid, lattice, and hollow sub-regions |
| US20190375278A1 (en) * | 2018-06-06 | 2019-12-12 | Divergent Technologies, Inc. | Additively manufactured structures for vehicle doors |
| CN108639156A (en) * | 2018-06-12 | 2018-10-12 | 苏州普热斯勒先进成型技术有限公司 | White body and its manufacturing process |
| FR3088610B1 (en) * | 2018-11-15 | 2021-01-22 | Renault Sas | DASHBOARD BODY WITH LACUNAR STRUCTURE AND INTEGRATED FLUID CIRCULATION DUCTS |
| CN109466304B (en) * | 2018-11-19 | 2021-06-29 | 华侨大学 | Light engine mount capable of reducing vibration and absorbing noise |
| CN109703624B (en) * | 2018-12-29 | 2021-03-30 | 吉林大学 | Automobile roof beam with bending resistance and manufacturing method thereof |
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