CN106739906B - A kind of fibre reinforced air suspension of passenger car C-shaped girder construction and its design method - Google Patents
A kind of fibre reinforced air suspension of passenger car C-shaped girder construction and its design method Download PDFInfo
- Publication number
- CN106739906B CN106739906B CN201611158811.XA CN201611158811A CN106739906B CN 106739906 B CN106739906 B CN 106739906B CN 201611158811 A CN201611158811 A CN 201611158811A CN 106739906 B CN106739906 B CN 106739906B
- Authority
- CN
- China
- Prior art keywords
- shaped beam
- shaped
- fibre reinforced
- girder construction
- transversal
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/28—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/126—Mounting of pneumatic springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/011—Modular constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/71—Light weight materials
- B60G2206/7101—Fiber-reinforced plastics [FRP]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/71—Light weight materials
- B60G2206/7105—Porous materials, ceramics, e.g. as filling material
Abstract
The invention discloses a kind of fibre reinforced air suspension of passenger car C-shaped boom device, including：Main body, it is variable cross-section opening girder construction, in the central hollow section filled and process of the opening girder construction, and is bonded internal layer unidirectional lamination in the foam upper surface, and bonding outer layer unidirectional lamination is wound in the body exterior；Central fastener, it is socketed on the outside of the carbon cloth in the middle part of the main body；End fasteners, it is socketed on the outside of the carbon cloth of the body end.The invention also discloses a kind of design method of fibre reinforced air suspension of passenger car C-shaped girder construction.
Description
Technical field
The present invention relates to air suspension of passenger car C-shaped beam field, and in particular to a kind of fibre reinforced air suspension of passenger car C-shaped
Girder construction and its design method.
Background technology
Key component of the suspension system as automobile chassis, there is important shadow to ride safety of automobile reliability and performance
Ring, and the important research part of Hyundai Motor development.Airsuspension system due to its flexible coefficient it is adjustable, it is in light weight,
The advantages that smooth ride, damping performance are good, it is more and more extensive in the application of bus industry.And C-shaped beam as in air suspension most
One of crucial part, is fixed, both ends pass through air spring and damper and bus frame phase by bolt and vehicle bridge among it
Even, carry the weight of vehicle.Therefore rational design C-shaped girder construction and its design method for improve airsuspension system and
The performance of vehicle, which all has, to be of great significance.
Current domestic C-shaped beam is generally process by variable cross-section shaped steel, and its manufacture method mainly includes monoblock cast and steel
Two kinds of plate punch welding.Because the C-shaped beam of car is born compared with big load in use, therefore in order to meet intensity, rigidity
And durability, reliability requirements, its volume is often bigger, when using steel as material completely, can cause piece weight
It is excessive, so as to have influence on vehicle lightweight, make its power performance and the economy performance poor.C-shaped beam stress situation is complicated simultaneously, both
Bear tensile load and bear torsional load again, and traditional material such as cast iron, steel etc. are isotropic material, it is impossible to for by
Force direction is strengthened, and inevitably causes waste of material, and volume weight is excessive.
For problem present in traditional C-shaped beam, passenger train plan form is often now used based on China, proposes that a kind of carbon fiber increases
Strong air suspension of passenger car C-shaped beam and its design method.
The content of the invention
The present invention has designed and developed a kind of fibre reinforced air suspension of passenger car C-shaped girder construction, goal of the invention of the invention
It is to solve the problems, such as that C-shaped beam can bear tensile load and torsional load simultaneously, and reaches lighting.
The present invention has designed and developed a kind of design method of fibre reinforced air suspension of passenger car C-shaped girder construction, the present invention
Goal of the invention be the winding angle for solving the problems, such as carbon cloth on C-shaped beam.
Technical scheme provided by the invention is：
A kind of fibre reinforced air suspension of passenger car C-shaped girder construction, including：
Main body, it is variable cross-section opening girder construction, in the central hollow section filled and process of the opening girder construction, and
Internal layer unidirectional lamination is bonded in the foam upper surface, bonding outer layer unidirectional lamination is wound in the body exterior；
Central fastener, it is socketed on the outside of the carbon cloth in the middle part of the main body；
End fasteners, it is socketed on the outside of the carbon cloth of the body end.
Preferably, in addition to：
First reinforcing plate, it is removably connected with the central fastener, and is installed on the bottom of the main body；With
And
Vehicle bridge erection support, it is removably connected with the central fastener, and is installed on the top of the main body.
Preferably, in addition to：Second reinforcing plate, it is welded on the both ends of the opening girder construction, and described second strengthens
Bolt hole is set on plate, and it is used to connect air spring and shock absorber.
Preferably, the central fastener includes left sleeve and right sleeve；And
The central fastener is adhered on the outside of the carbon cloth in the middle part of the main body.
Preferably, the end fasteners include left U-shaped part and right U-shaped part, and the left U-shaped part and right U
Shape part is bolted fastening；And
The end fasteners are adhered on the outside of the carbon cloth of the body end.
Preferably, along the axis direction of the main body, internal layer unidirectional lamination is bonded in the foam upper surface, is made
The internal layer unidirectional lamination radially along the axis direction.
Preferably, the lap of splice at least 20mm between the adjacent outer layer unidirectional lamination；And
The end fasteners cover the outer layer carbon cloth width at least 50mm.
Preferably, the outer layer unidirectional lamination is 35 °~40 ° relative to the winding angle in C-shaped beam transversal direction.
A kind of design method of fibre reinforced air suspension of passenger car C-shaped girder construction, comprises the following steps：
Step 1: according to the axle load T of car wheel shaft, C-shaped beam both ends air spring installation center point stress F is determined,In formula, wherein g is acceleration of gravity, KdFor Dynamic Amplification Factor；
Step 2: the length for determining the C-shaped beam is L, the thickness of variable cross-section open beam is t, is highly h, width b,
Apply identified central point stress F in the step 1, according toOuter layer unidirectional lamination is obtained relative to C-shaped
The winding angle in beam transversal direction；
In formula,1≤i≤n,To determine in any i-th of arbitrary region
In partial model principal stress vector,For with the principal stress vector same plane and cross center at
Transversal tangent vector, wherein, the transversal is the intersection with C-shaped beam, α perpendicular to the section of C-shaped beam axisiFor main stress vector
With C-shaped beam transversal tangent vectorAngle.
Present invention beneficial effect possessed compared with prior art：
1st, fibre reinforced air suspension of passenger car C-shaped beam of the invention is compared with existing C-shaped girder construction, by being cut in change
Interstitital texture foamed material in the open beam steel construction of face, and enhancing is oriented using carbon fibre reinforced composite, realize
On the basis of bearing capacity is improved, while C-shaped beam overall dimensions are reduced, alleviate the purpose of weight, be more beneficial for realizing
Vehicle lightweight, so as to improve the power performance and the economy performance of car；
2nd, for C-shaped beam Operation of Passenger Cars simultaneously flexural deformation and torsional deflection be present the characteristics of, be bonded carbon cloth
When be divided into along C-shaped beam axial direction internal layer unidirectional lamination and the outer layer unidirectional lamination along torsional load direction, use respectively
To resist moment of torsion caused by pulling force caused by flexural deformation and torsional deflection.Not only more conform to C-shaped beam stress characteristic, Er Qiechong
Divide the characteristics of make use of unidirectional lamination intensity mainly along its warp-wise, on the basis of its bearing capacity is improved, it is fixed to realize
To enhancing, overcoming traditional isotropic material can not be strengthened for main Impact direction, cause physical dimension weight
Excessive, the irrational shortcoming of materials'use, ensure that effective utilization of carbon fibre reinforced composite, be manufactured reducing
It is more favorable to realize lightweight while cost；
3rd, using carbon fibre reinforced composite adhesive technology, avoid in conventional fabrication process and cast, caused by welding
Influence of the quality problems to C-shaped joist support loading capability and reliability；
4th, carbon cloth thickness of thin, it is soft easily to cut, it can also realize 100% bonding, energy for complex-shaped structure
C-shaped beam dimensional accuracy is enough effectively ensured, while makes its surface smooth, is advantageous to improve the fatigue strength of C-shaped beam, increases it
Durability；
5th, fibre reinforced air suspension of passenger car C-shaped beam involved in the present invention passes through in variable cross-section open beam central filler
Foamed material, it is more beneficial for absorbing shock loading, improves suspension shock resistance.
6th, the design method of the fibre reinforced air suspension of passenger car C-shaped girder construction designed by the present invention can be easy and effective
Calculate winding angle of the outer layer unidirectional lamination relative to C-shaped beam transversal, provided for engineer applied with can well implement
Property the guidance that quantifies, carbon fiber is arranged as far as possible along body structure surface Tensile direction, play carbon fiber to greatest extent
Orient humidification.
Brief description of the drawings
Fig. 1 is fiber reinforcement air suspension of passenger car C-shaped girder construction schematic diagram of the present invention.
Fig. 2 is fibre reinforced C-shaped beam body cross-section schematic diagram.
Fig. 3 is variable cross-section open beam schematic diagram.
Fig. 4 is C-shaped beam central fastener schematic diagram.
Fig. 5 is C-shaped beam end fastener schematic diagram.
Fig. 6 is fibre reinforced C-shaped beam size and stress diagram.
Fig. 7 is variable cross-section opening beam section size parameter schematic diagram.
Fig. 8 is shell unit principal stress vectorWith corresponding C-shaped beam transversal tangent vectorAngle αiSchematic diagram.
Fig. 9 is that inside and outside layer unidirectional lamination is bonded direction and outer layer unidirectional lamination twining relative to C-shaped beam transversal
Around angle schematic diagram.
Figure 10 is the fibre reinforced C-shaped beam schematic diagram after the completion of assembling.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
The invention provides a kind of fibre reinforced air suspension of passenger car C-shaped girder construction, it has, and size is small, in light weight,
Simple in construction, bearing capacity is strong, while more meets bearing type passenger car suspension loading characteristic, can realize orientation enhancing.
As shown in figure 1, C-shaped girder construction provided by the invention is mainly by fibre reinforced C-shaped beam main body 100, C-shaped beam middle part
Fastener 110, C-shaped beam end fastener 120, the first reinforcing plate 131, vehicle bridge erection support 150, the second reinforcing plate 132 form.
As shown in Figure 2 and Figure 3, fibre reinforced C-shaped beam main body 100 is by variable cross-section open beam 140, foamed material 200, interior
Layer unidirectional lamination 310, outer layer unidirectional lamination 320 form, wherein, the central hollow section of variable cross-section open beam 140 is filled out
Foamed material 200 is filled, bonding internal layer unidirectional lamination 310, makes its warp-wise along C-shaped beam axis in the upper surface of foamed material 200
Direction, while in the superficies of fibre reinforced C-shaped beam main body 100, from C-shaped beam in the middle part of to both ends wind bonding outer layer Unidirectional
Fiber cloth 320, make its warp-wise along the average maximum tension direction caused by torsional deflection.
As shown in figure 4, C-shaped beam central fastener 110 is made up of left sleeve 111, right sleeve 112, left sleeve 111, right set
Cylinder 112 is adhered on the outside of the middle part carbon fibre reinforced composite of fibre reinforced C-shaped beam main body 100, the first reinforcing plate 131, C-shaped
Beam central fastener 110 and vehicle bridge erection support 150 are connected by bolt with fibre reinforced C-shaped beam main body 100.
As shown in figure 5, C-shaped beam end fastener 120 is made up of left U-shaped part 121 and right U-shaped part 122, the He of left U-shaped part 121
Right U-shaped part 122 is adhered on the outside of the end carbon fibre reinforced composite of fibre reinforced C-shaped beam main body 100, and passes through bolt
123 are attached.
C-shaped beam central fastener 110 can be entered with C-shaped beam end fastener 120 to the carbon cloth being bonded on C-shaped beam
Row fastening, reducing adhesive failure causes the risk that carbon cloth comes off.C-shaped beam central fastener 110 can be to carbon fiber simultaneously
Enhancing composite is effectively protected, and by being bonded left and right sleeve, is effectively improved carbon fiber stressing conditions, can be reduced outstanding
The frame abrasion to carbon fibre reinforced composite in use, so as to ensure its stable performance, extends service life.
C-shaped beam central fastener 110, C-shaped beam end fastener 120 respectively with fibre reinforced C-shaped beam main body outer layer
Carbon fibre reinforced composite is bonded together by bonding agent, to be solidified to complete and then assembled as an entirety.
In another embodiment, variable cross-section open beam 140 is process using the method for punching press.
In another embodiment, foamed material 200 is structural foam, has the characteristics of density is small, intensity is high, is made
For the packing material at the central hollow position of variable cross-section open beam 140, machine-shaping is not only easy to, and total constitution can be mitigated
Measure, bear certain load, while can effectively be bonded carbon cloth.
In another embodiment, carbon cloth is unidirectional lamination, through having substantial amounts of carbon fiber wire upwards,
Broadwise only has a small amount of and typically thin carbon fiber wire, and the tensile strength in warp direction is much larger than the tension on weft direction
Intensity.
In another embodiment, the second reinforcing plate 132 is welded on variable cross-section open beam both ends, is provided with bolt hole thereon,
To connect air spring and damper.
In another embodiment, variable cross-section open beam 140, C-shaped beam central fastener 110 and C-shaped beam end fastener
120 gluing of surfaces need to carry out annular knurl processing, ensure that it is effective bonding with carbon cloth.
In another embodiment, in order to ensure the fastening effect of C-shaped beam end fastener 120, left U-shaped part 121 and right U
The width that shape part 122 covers carbon cloth should ensure that in more than 50mm.
In another embodiment, in order to improve the adhesive effect of carbon cloth, between adjacent outward layer unidirectional lamination
The lap of splice should ensure that in more than 20mm.
In another embodiment, the outer layer unidirectional lamination is relative to the winding angle in C-shaped beam transversal direction
35 °~40 °.
Embodiment 1
The invention also discloses a kind of design method of fibre reinforced air suspension of passenger car C-shaped girder construction, including it is as follows
Step：
Step 1: determine service load；According to the axle load T of wheel shaft in car operating condition, C-shaped beam both ends air bullet is determined
Spring installation center point stress F, F are calculated according to equation below：
In formula, wherein g is acceleration of gravity, KdFor Dynamic Amplification Factor；And from force analysis, C
Ellbeam is primarily subjected to tensile load and torsional load；
Step 2: the length of C-shaped beam described in primary election is L, the thickness of variable cross-section open beam is t, is highly h, width b, C
Ellbeam size and stress diagram are as shown in Figure 6, variable cross-section opening beam section size parameter schematic diagram is as shown in fig. 7, according to C-shaped
Beam relative dimensions, establish model, apply identified power F and C-shaped beam actual boundary in the step 1, carry out analysis calculating
Principal stress size and direction；
Step 3: principal stress vector under the coordinate system of partial model of the determination in any i-th of arbitrary regionWherein, n is the region quantity that is divided,In region in local coordinate system x/y plane；
Step 4: determine C-shaped beam outer surface transversal；Do perpendicular to the section of C-shaped beam axis, if being crossed to form with C-shaped beam
Dry transversal；
Step 5: transversal tangent vector is at center O in region in step 3It is defined on xy
In plane, principal stress vector is calculatedWith corresponding C-shaped beam transversal tangent vectorAngle is αi(i=1,2 ... ... n), then
Step 6: determine winding angle of the outer layer unidirectional lamination relative to C-shaped beam transversal；Due to the master of different zones
Angle is not fully consistent between stress vector and C-shaped beam surface transversal, therefore calculates the average value of all angles, and is made
Winding angle for outer layer unidirectional lamination relative to C-shaped beam transversal.αiAverage valueFor
For as outer layer unidirectional lamination relative to the winding angle of C-shaped beam transversal, n is the region quantity that is divided,
As shown in figure 9, it is bonded direction and outer layer unidirectional lamination twining relative to C-shaped beam transversal for inside and outside layer unidirectional lamination
Around angle schematic diagram.
With reference to accompanying drawing, by taking certain 12 long highway passenger vehicle of money as an example, fibre reinforced car air involved in the present invention is hanged
Frame C-shaped girder construction and its design method are described in further detail.
For the highway passenger vehicle selected by the present embodiment, C-shaped beam air spring installation center point stress F is calculated, its direction is erected
Straight downward, F sizes are calculated by equation below：Under actual operating mode, car rear axle axle load T is
15t, Dynamic Amplification Factor KdFor 2.5, gravity acceleration g=9.8N/Kg, F=91.88KN, C-shaped beam relative dimensions parameter point are brought to obtain into
Not Wei L=1740mm, b=90mm, h=140mm, t=5mm, based on dimensions above, by establishing C-shaped beam partial model, then
Apply load F and C-shaped beam actual boundary condition, analyzed, and calculate principal stress size and direction；In the present embodiment, institute
It is that unidirectionally small tow carbon fiber is process by 100%, 12k using unidirectional lamination, is 300g/m per Gram Mass2,
Thickness in monolayer is 0.167mm, and width 150mm, its tensile strength is 3400MPa, modulus of elasticity 240GPa；Tied based on calculating
Fruit, extract each region principal stress vector, do it is some perpendicular to the section of C-shaped beam axis, if being crossed to form with C-shaped beam outer surface
Dry transversal, and principal stress vector and the angle crossed between regional center transversal tangent vector are calculated, so that it is determined that outer layer unidirectional carbon fiber
Wei Bu is relative to C-shaped beam transversal winding angle
Embodiment 2
The invention also discloses a kind of design method of fibre reinforced air suspension of passenger car C-shaped girder construction, including it is as follows
Step：
Step 1: determine service load.According to the axle load T of wheel shaft in car actual operating mode, C-shaped beam both ends sky is determined
Gas spring installation center point stress F, F calculate according to equation below：Wherein, g is acceleration of gravity, KdFor
Dynamic Amplification Factor；From force analysis, C-shaped beam is primarily subjected to tensile load and torsional load；
Step 2: FEM model is established, computing unit principal stress size and direction.Primary election C-shaped beam length L, variable cross-section
Be open cantilever thickness t, height h, width b.C-shaped beam size and stress diagram as shown in Figure 6, variable cross-section opening beam section size ginseng
Number schematic diagrames establish FEM model as shown in fig. 7, according to C-shaped beam relative dimensions, apply in step 1 identified power F with
And C-shaped beam actual boundary condition, carry out simulation analysis, computing unit principal stress size and direction.
Step 3: extraction unit principal stress is vectorial；By finite element emulation software, i-th of shell unit of extraction is in shell unit
Principal stress vector under local coordinate systemWherein, n is total for the shell unit divided,In shell unit office
In portion's coordinate system x/y plane；
Step 4: determine C-shaped beam outer surface transversal；Do perpendicular to the section of C-shaped beam axis, intersect with C-shaped beam outer surface
Form some transversals；
Step 5: computing unit principal stress is vectorial and crosses angle between unit center C-shaped beam transversal；As shown in figure 8, in list
Transversal tangent vector is at first center O pointsIt is defined in x/y plane, principal stress vectorWith corresponding C-shaped beam
Transversal tangent vectorAngle is αi(i=1,2 ... ... n), then αiFor1≤i≤n, n are divided
Shell unit sum；
Step 6: determine winding angle of the outer layer unidirectional lamination relative to C-shaped beam transversal；Due to the master of different units
Angle is not fully consistent between stress vector and C-shaped beam surface transversal, therefore calculates the average value of all angles, and is made
Winding angle for outer layer unidirectional lamination relative to C-shaped beam transversal.αiAverage valueFor1≤i≤n,
As outer layer unidirectional lamination is relative to the winding angle of C-shaped beam transversal, and n is total for the shell unit divided, as shown in Figure 9
Direction and outer layer unidirectional lamination are bonded for inside and outside layer unidirectional lamination relative to the winding angle of C-shaped beam transversal to illustrate
Figure.
With reference to accompanying drawing, by taking certain 12 long highway passenger vehicle of money as an example, fibre reinforced car air involved in the present invention is hanged
Frame C-shaped girder construction and its design method are described in further detail.
For the highway passenger vehicle selected by the present embodiment, C-shaped beam air spring installation center point stress F is calculated, its direction is erected
It is straight downward.F sizes are calculated by equation below：
Under actual operating mode, car rear axle axle load T is 15t, Dynamic Amplification Factor KdFor 2.5, gravity acceleration g=
9.8N/Kg, bring to obtain F=91.88KN into, C-shaped beam relative dimensions parameter is respectively L=1740mm, b=90mm, h=140mm, t
=5mm.Based on dimensions above, C-shaped beam finite element model is established by finite element software, then applies load F and C-shaped beam is real
Border boundary condition, carry out simulation analysis, and computing unit principal stress size and direction.Unidirectional carbon employed in the present embodiment
Cloth is that unidirectionally small tow carbon fiber is process by 100%, 12k, is 300g/m per Gram Mass2, thickness in monolayer is
0.167mm, width 150mm, its tensile strength are 3400MPa, modulus of elasticity 240GPa.
Based on finite element software result of calculation, each shell unit principal stress vector is extracted, is done some perpendicular to C-shaped beam axis
Section, be crossed to form some transversals with C-shaped beam outer surface, and calculate principal stress vector with cross unit center transversal tangent vector it
Between angle, so that it is determined that outer layer unidirectional lamination is relative to C-shaped beam transversal winding angle
In the present embodiment, simulation software is used as HyperMesh, Patran2010＆Nastran2010, and programming is soft
Part is Compaq Visual Fortran 6.6, operating system Windows.
As shown in Fig. 1~10, according to the C-shaped girder construction and its design method of the present invention, the invention provides a kind of specific
Operating process, comprise the following steps：
Step a, liquidate the variable cross-section open beam 140 pressed, left sleeve 111, right sleeve 112, left U-shaped part 121 and right U
The gluing of surfaces of shape part 122 carries out annular knurl processing, increases its surface roughness, is easy to effectively be bonded with carbon cloth, will be roughened
Cleaning of Parts after processing is clean and is dried；
Step b, bonding agent is smeared in the inner surface of variable cross-section open beam 140, and the foamed material 200 of definite shape is filled
Inside variable cross-section open beam；
Step c, the unidirectional lamination cut out by drawing size is adhered at the upper end open of variable cross-section open beam 140
The surface of foamed material 200, and solidified；
Step d, treat that internal layer unidirectional lamination 310 solidifies substantially, after there is certain hardness, along relative to C-shaped beam
38 ° of winding bonding outer layer unidirectional laminations 320 of transversal, the adjacent two layers carbon cloth lap of splice is 30mm；
Step e, the C-shaped beam main body 100 of bonding carbon fibre reinforced composite is solidified, it is after the completion of solidification and right
Its surface carries out sanding and polishing；
Step f, by the left sleeve 111 in C-shaped beam central fastener 110, right sleeve 112 and C-shaped beam end fastener
Left U-shaped part 121, the gluing of surfaces brushing bonded adhesives of right U-shaped part 122 in 120, and it is bonded in the corresponding positions of C-shaped beam main body 100
Put, in order to ensure the fastening effect of C-shaped beam end fastener 120, left U-shaped part 121 and right U-shaped part 122 covering carbon cloth
Width be 60mm, after a period of time to be solidified, C-shaped beam end fastener or so U-shaped part is fastened with bolt, complete with it is empty
Gas spring, damper, vehicle bridge etc. are assembled, and the C-shaped beam agent structure after the completion of assembling is as shown in Figure 10.
Although embodiment of the present invention is disclosed as above, it is not restricted in specification and embodiment listed
With it can be applied to various suitable the field of the invention completely, can be easily for those skilled in the art
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, it is of the invention and unlimited
In specific details and shown here as the legend with description.
Claims (1)
1. a kind of design method of fibre reinforced air suspension of passenger car C-shaped girder construction, it is characterised in that comprise the following steps：
Step 1: according to the axle load T of car wheel shaft, C-shaped beam both ends air spring installation center point stress F is determined,In formula, wherein g is acceleration of gravity, KdFor Dynamic Amplification Factor；
Step 2: the length for determining the C-shaped beam is L, the thickness of variable cross-section open beam is t, is highly h, width b, apply
Identified central point stress F in the step 1, according toOuter layer unidirectional lamination is obtained to cut relative to C-shaped beam
The winding angle in line direction；
In formula,To determine in any i-th of arbitrary region
Partial model principal stress vector,For with being cut in the principal stress vector same plane and excessively at center
Line tangent vector, wherein, the transversal is the intersection with C-shaped beam, α perpendicular to the section of C-shaped beam axisiFor main stress vectorWith
C-shaped beam transversal tangent vectorAngle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158811.XA CN106739906B (en) | 2016-12-15 | 2016-12-15 | A kind of fibre reinforced air suspension of passenger car C-shaped girder construction and its design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611158811.XA CN106739906B (en) | 2016-12-15 | 2016-12-15 | A kind of fibre reinforced air suspension of passenger car C-shaped girder construction and its design method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106739906A CN106739906A (en) | 2017-05-31 |
| CN106739906B true CN106739906B (en) | 2018-03-30 |
Family
ID=58888375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611158811.XA Expired - Fee Related CN106739906B (en) | 2016-12-15 | 2016-12-15 | A kind of fibre reinforced air suspension of passenger car C-shaped girder construction and its design method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106739906B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060495A (en) * | 2019-06-11 | 2020-12-11 | 大赛璐塑料株式会社 | Injection molded article and method for producing same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019833A (en) * | 2005-09-13 | 2011-04-20 | Ksm铸造有限公司 | Longitudinal connecting rod for auxiliary frame |
| CN201272216Y (en) * | 2008-09-04 | 2009-07-15 | 郑州宇通集团有限公司 | C shaped bracket for automobile axle air suspension |
| CN101718203B (en) * | 2009-11-10 | 2011-07-06 | 南京工业大学 | Coal mine support post of composite material |
| CN101885296B (en) * | 2010-06-24 | 2011-10-05 | 苏州市奥杰汽车技术有限公司 | C-shape beam used for air suspension |
| CN204279632U (en) * | 2014-12-19 | 2015-04-22 | 丹阳市联创汽车附件有限公司 | A kind of punch and weld joist for air suspension of automobile |
| CN105034999A (en) * | 2015-06-18 | 2015-11-11 | 上海耀华大中新材料有限公司 | Carbon fiber automobile bumper beam and manufacturing method thereof |
| CN206242844U (en) * | 2016-12-15 | 2017-06-13 | 吉林大学 | A kind of fibre reinforced air suspension of passenger car C-shaped girder construction |
-
2016
- 2016-12-15 CN CN201611158811.XA patent/CN106739906B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106739906A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101863290B (en) | Lightweight total-bearing body frame structure | |
| CN110126625B (en) | Novel high-speed pantograph and lightweight dynamic design method thereof | |
| Seward | Race car design | |
| CN101667221B (en) | Method for determining dual-layer top cover of motor coach with top-positioned gas cylinder | |
| CN107097851A (en) | A kind of pure electric automobile lightweight car body and its design method | |
| Morris | Composite integrated rear suspension | |
| CN108170972A (en) | A kind of finite element method of equation motorcycle race vehicle frame | |
| Mahmoodi-k et al. | Stress and dynamic analysis of optimized trailer chassis | |
| CN103514309A (en) | Ballastless track designing, checking and calculating system based on space detail solid model | |
| CN107776603A (en) | The dual-axis bogie framework and its manufacture method of a kind of straddle-type monorail train | |
| CN106739906B (en) | A kind of fibre reinforced air suspension of passenger car C-shaped girder construction and its design method | |
| Gu | Application of finite element method in mechanical design of automotive parts | |
| CN206242844U (en) | A kind of fibre reinforced air suspension of passenger car C-shaped girder construction | |
| Arifurrahman et al. | Static analysis of an electric three-wheel vehicle | |
| CN107215394B (en) | Front-mounted rear-drive truss type sports car frame and car body structure design method | |
| Gong et al. | A modal frequency optimization approach for a fully-equipped car body of high-speed trains | |
| Shin et al. | Structural analysis and optimization of a low-speed vehicle body | |
| CN207374391U (en) | Empty iron train vehicle body suspension system | |
| CN208698778U (en) | A kind of chassis of motor train aluminum profile | |
| Prachasaree et al. | Parametric study on dynamic response of fiber reinforced polymer composite bridges | |
| Zeng et al. | Dynamic amplification of bridge/vehicle interaction: a parametric study for a skewed bridge | |
| Raju et al. | Modeling and Structural Analysis of Ladder Type Heavy Vehicle Frame | |
| Strukelj et al. | Analysis of a bridge structure and its wind barrier under wind loads | |
| Wang et al. | Body Structure and Lightweight Design of a Suspended Monorail Vehicle | |
| Bond et al. | Dynamic and economic aspects of carbon fiber reinforced polymer footbridges |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20191215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |