CN105701321A - Improvement similar-honeycomb sandwich structure and processing method - Google Patents

Abstract

The invention relates to an improvement similar-honeycomb sandwich structure and a processing method. Minimum mechanics analysis units of the improvement similar-honeycomb sandwich structure are formed by first slant edges, first vertical edges, second slant edges and second vertical edges, wherein first obtuse angles are composed of the first slant edges and the first vertical edges, second obtuse angles are composed of the second slant edges and the second vertical edges, and the two axis-symmetric vertical edges are connected in a glue joint mode through adhesives. A further-expanded structure is formed in the mode that end points of the slant edges of the up-and-down and left-and-right symmetrical minimum mechanics analysis units are connected, and end points of the horizontal edges and end points of the vertical edges of up-and-down adjacent units are connected. By means of the improvement similar-honeycomb sandwich structure, under the condition that the use condition of the structure can be met, the weight of the sandwich structure is lighter, the mechanical performance is better, processing is more convenient, and shapes are more beautiful.

Description

A kind of improvement class honeycomb sandwich construction and processing method

Technical field

The present invention relates to a kind of sandwich, particularly relate to a kind of improvement class honeycomb sandwich construction and processing method。

Background technology

Sandwich has lightweight, specific strength is high, the many merits such as specific rigidity is good, sound insulation, heat insulation, life-span length, comprehensive function prominent, outward appearance glacing flatness is high, be unlikely to deform, flexibility (adaptability) of operation is good, are widely used in fields such as Aero-Space, bullet train, boats and ships, architecture indoor external decoration, sports goods, racing car, light-weight houses。One kind honeycomb sandwich construction (in application number 201310521056.7 substantive examination), a square honeycomb sandwich construction of kind (in application number 201510113765.0 substantive examination) structurally extend honeycomb system, it is gradually improved with theory analysis currently for the design of various common honeycomb sandwich constructions, and becomes wide variety of a kind of sandwich in some field。But from structural mechanical property, processing method, common honeycomb sandwich construction is not optimum。A kind of improvement class honeycomb sandwich construction, makees existing honeycomb sandwich construction system effectively to supplement in structure and forming mode。

Summary of the invention

The technical problem to be solved is to provide a kind of improvement class honeycomb sandwich construction and processing method, it is possible under the premise meeting interlayer overall structure rigidity, structural mechanical property is more excellent, and shape is more attractive in appearance, and the course of processing more easily operates。

For solving the problems referred to above, the technical solution adopted in the present invention be with: a kind of improve class honeycomb sandwich construction, the minimum mechanical analysis unit of this structure is the first hypotenuse and first vertical edge at composition the first obtuse angle, with the second hypotenuse and the second vertical edge that form the second obtuse angle, and two vertical edges axisymmetricly are connected together by adhesive glue。

The hypotenuse end points that the structure further expanded is minimum mechanical analysis unit upper and lower, symmetrical connects, and the horizontal sides end points of neighbouring unit is connected with vertical edge end points。

Described the first hypotenuse, the second hypotenuse length are equal, and the first vertical edge, the second vertical edge length are equal。

A kind of for processing the method improving class honeycomb sandwich construction, it comprises the following steps:

S1: select by the first hypotenuse, the second hypotenuse, the first vertical edge and the second vertical edge arch bar element that formed of combination as minimum process unit, repeats the adjacent upright limit of identical arch bar element bonding to combine bonding growth strip assembled unit。

S2: by positioned opposite to a strip assembled unit in four root length strip assembled units and No. two strip assembled units, and ensure the length of its first vertical edge that staggers；By No. three strip assembled units and No. two back-to-back layouts of strip assembled unit, and ensure that its horizontal sides coincides；By positioned opposite to No. four strip assembled units and a strip assembled unit, and ensure that its vertical edge is on same vertical curve。

S3: the topcoating daub stick that a strip assembled unit, No. two strip assembled units, No. three strip assembled units and No. four strip assembled units are contacted, carry out bonding and pressing, ultimately form improvement class honeycomb sandwich construction, after the machining cell bonding of this pattern, the wall thickness of criss-cross vertical edges is the twice of hypotenuse wall thickness。

In described S1, arch bar element is as minimum process unit, and its processing method is, adopts thin-walled part material to carry out Bending Processing, and the angle of bending is repeatedly orderly 45 ° and 180 °, and the thickness adopting metal thin-wall panel material is 0.5mm-1.5mm。

In described S1, arch bar element is as minimum process unit, and its processing method is, adopts metal solid slab, writes numerical control program according to the shape of minimum process unit, carry out linear cutter, and metal solid slab thickness used herein is more than 5mm。

A kind of for processing the method improving class honeycomb sandwich construction, it comprises the following steps:

S11: select by the first hypotenuse, the second hypotenuse, the first vertical edge and the second vertical edge channel-shaped strip element that formed of combination as minimum process unit, repeats the adjacent upright limit of identical channel-shaped strip element bonding to combine the continuous channel-shaped assembled unit of bonding one-tenth。

S12: by positioned opposite to a continuous channel-shaped assembled unit in four continuous channel-shaped assembled units and No. two continuous channel-shaped assembled units, and ensure the length of its first vertical edge that staggers；By continuous to No. three continuous channel-shaped assembled units and No. two back-to-back layout of channel-shaped assembled unit, and ensure that its horizontal sides coincides；By positioned opposite to No. four continuous channel-shaped assembled units and a continuous channel-shaped assembled unit, and ensure that its vertical edge is on same vertical curve。

S13: the topcoating daub stick that a continuous channel-shaped assembled unit, No. two continuous channel-shaped assembled units, No. three continuous channel-shaped assembled units and No. four continuous channel-shaped assembled units are contacted, carry out bonding and pressing, ultimately form improvement class honeycomb sandwich construction, after the machining cell bonding of this pattern, article two, the wall thickness of criss-cross vertical edges, article one, limit is the twice of hypotenuse wall thickness, and limit is four times of hypotenuse wall thickness。

In described S11, channel-shaped strip element adopts metal thin-wall panel material to carry out Bending Processing, and the angle of bending is repeatedly orderly 90 °, 45 ° and 180 °, and the thickness adopting metal thin-wall panel material is 0.5mm-1.5mm。

In described S11, channel-shaped strip element adopts metal solid slab, writes numerical control program according to its shape, carries out linear cutter, and metal solid slab thickness used herein should be greater than 5mm。

Described metal thin-wall panel material is aluminium alloy。

Described metal solid slab is aluminium alloy。

A kind of processing method improving class honeycomb sandwich construction and sandwich structure provided by the invention, can meet under the premise of structural strength and rigidity, the weight making the structure of interlayer is lighter, mechanical property is better, it is achieved light-weight design, and its processing method is easily operated, simple possible, shape is more attractive in appearance, it is possible to for high-volume, the processing class cellular sandwich of low cost and sandwich, be conducive to scientific research and the popularization and application of this structure。

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described:

Fig. 1 is the schematic cross-section of the overall structure combination of the present invention。

Fig. 2 is the Mechanical equivalent model of present configuration。

Fig. 3 is the simple tension force structure schematic diagram in the minimum mechanics computing unit X-direction of the present invention。

Fig. 4 is the simple tension force structure schematic diagram in the minimum mechanics computing unit Y-direction of the present invention。

Fig. 5 is the minimum Array Construction cell element of the present invention。

Fig. 6 is for improving class honeycomb sandwich construction sketch。

Fig. 7 is for improving the complete plane expander graphs of class cellular sandwich。

Fig. 8 is the complete plane expander graphs of class cellular sandwich。

Fig. 9 is improvement class cellular sandwich minimum process unit and the adhesion process thereof of embodiment 1。

Figure 10 is improvement class cellular sandwich minimum process unit and the adhesion process thereof of embodiment 2。

In figure: first hypotenuse the 1, first vertical edge the 2, second hypotenuse the 3, second vertical edge 4, arch bar element 5, strip assembled unit 6, channel-shaped strip element 7, continuous channel-shaped assembled unit 8；

A number strip assembled unit 62, No. three strip assembled units 63 of 61, No. two strip assembled units and No. four strip assembled units 64；

81, No. two continuous channel-shaped assembled units of a number continuous channel-shaped assembled unit, 83, No. four continuous channel-shaped assembled units 84 of 82, No. three continuous channel-shaped assembled units。

Detailed description of the invention

In Fig. 1, a kind of improvement class honeycomb sandwich construction, the minimum mechanical analysis unit of this structure is first hypotenuse 1 and first vertical edge 2 at composition the first obtuse angle, and forms second hypotenuse 3 and second vertical edge 4 at the second obtuse angle, and two vertical edges axisymmetricly are connected together by adhesive glue。

The hypotenuse end points that the structure further expanded is minimum mechanical analysis unit upper and lower, symmetrical connects, and the horizontal sides end points of neighbouring unit is connected with vertical edge end points。

First described hypotenuse the 1, second hypotenuse 3 length is equal, and first vertical edge the 2, second vertical edge 4 length is equal。

Check below for above-mentioned structure, with the advantage further illustrating present configuration。

It is similar to the analysis of class honeycomb sandwich construction, mechanical property based on the microstructure of laminboard layer and whole laminboard layer macrostructure, set up the orthogonal special-shaped layer of a homogenizing, with original sandwich structure, there is the model being equal to mechanical property, be referred to as sandwich structure Mechanical equivalent model。Sandwich equivalent model is as shown in Figure 2 herein。Equivalent model can reflect micro-property and the macro property of sandwich structure on the whole simultaneously, can better it be studied。

The precondition that model uses determines that the elastic constant of sandwich structure Mechanical equivalent model, and therefore Gibson proposes the cell element theory of classics。At present, it is mostly about the research work of the equivalent elastic constant of honeycomb sandwich structure and to launch on the basis that cell element is theoretical。For the ease of comparing with conventional layer sandwich structure, herein on the basis of existing research, use traditional mechanics of materials and theory of elastic mechanics knowledge, the Mechanical equivalent model of improvement class honeycomb sandwich structure in this paper is analyzed and solves。The improvement class cellular sandwich Rotating fields used by theory analysis herein is double-deck cementing structure。Process to simplify the analysis, it is assumed that in sandwich loading process, bonding layer occurs without destruction, then two the vertical obtuse angle edges gluedd joint in analyzing, replace with the vertical edge that thickness is 2 times。From the angle of Micromechanics, by the Y-shaped structure improved in class cellular sandwich layer or can form the unit of improvement class honeycomb texture is defined as unit body for cell, abbreviation cell element。Fig. 3, Fig. 4 are the cell elements that the present invention relates to, i.e. the minimum mechanics computing unit of the present invention, and Fig. 5 is the structure cell element that the present invention relates to, i.e. the minimum array cell element of the present invention。

Improve equivalent elastic constant E in class cellular sandwich face in the X direction_cxDerivation

Assume to improve the pure stress that the equivalent model of class honeycomb sandwich structure is in, P_xFor by x to pure stress σ_cxTime X-direction equivalence pulling force, M is moment of flexure now, dynamic balance condition obtain:

$M=\frac{1}{2}{P}_{x}lsin\mathrm{\θ}---\left(1\right)$

P_x=σ_cxA_x=σ_cx(h+lsinθ)b(2)

The amount of deflection of wallboard AB is by two power P_xCause with moment M two parts:

${\mathrm{\δ}}_{AB1}=\frac{P_x{l}^{3}sin\mathrm{\θ}}{3E_{s}I}-\frac{{\mathrm{Ml}}^2}{2E_{s}I}=\frac{P_x{\mathrm{sin\θl}}^3}{E_s{\mathrm{bt}}^3}---\left(3\right)$

The axial elongation amount of wallboard AB:

${\mathrm{\δ}}_{AB2}=\frac{P_{x}lcos\mathrm{\θ}}{E_{s}bt}---\left(4\right)$

In like manner wallboard BC is by the amount of deflection bending generation:

${\mathrm{\δ}}_{BC1}=\frac{P_{x}sin\mathrm{\θ}}{{\mathrm{bt}}^3}\frac{l^3}{E_s}---\left(5\right)$

The axial elongation amount of wallboard BC:

${\mathrm{\δ}}_{BC2}=\frac{P_x}{bt}\frac{cos\mathrm{\θ}l}{E_s}---\left(6\right)$

Improved class honeycomb sandwich structure by Hooke's law and can obtain equivalent strain ε in the X direction_cxFor:

${\mathrm{\ϵ}}_{cx}=\frac{2\left({\mathrm{\δ}}_{AB1}\sin \mathrm{\θ}+{\mathrm{\δ}}_{AB2}\cos \mathrm{\θ}\right)}{2l\cos \mathrm{\θ}}=\frac{P_x{l}^3{\sin }^2\mathrm{\θ}}{E_s{\mathrm{bt}}^{3}l\cos \mathrm{\θ}}\left(1+{\cot }^2\mathrm{\θ}\frac{t^2}{l^2}\right)---\left(7\right)$

In like manner can be improved class honeycomb sandwich structure equivalent strain ε in y-direction_cyFor:

${\mathrm{\ϵ}}_{cy}=\frac{{\mathrm{\δ}}_{AB2}sin\mathrm{\θ}-{\mathrm{\δ}}_{AB1}cos\mathrm{\θ}}{h+lsin\mathrm{\θ}}=\frac{P_y{\mathrm{sin\θcos\θl}}^3}{E_{s}b(h+lsin\mathrm{\θ})t^3}(1-\frac{t^2}{l^2})---\left(8\right)$

Basic definition according to Poisson's ratio, it is known that improve class honeycomb sandwich structure equivalent Poisson's ratio ν in the X direction_cxFor:

${\mathrm{\ν}}_{cx}=\left|\frac{{\mathrm{\ϵ}}_{cy}}{{\mathrm{\ϵ}}_{cx}}\right|=\frac{{\mathrm{\ϵ}}_{cy}}{{\mathrm{\ϵ}}_{cx}}=\frac{{\mathrm{cos\θ}}^2\left(1-t^2/l^2\right)}{\left(\mathrm{\β}+\sin \mathrm{\θ}\right)\sin \mathrm{\θ}}\frac{1}{1+{\cot }^2\mathrm{\θ}\left(t^2/l^2\right)}---\left(9\right)$

Wherein β=h/l。

Basic definition according to elastic modelling quantity, it is known that improve class cellular sandwich equivalent elastic modulus E in the X direction_cxFor:

$E_{cx}=\frac{{\mathrm{\σ}}_{cx}}{{\mathrm{\ϵ}}_{cx}}=E_s\frac{t^3}{l^3}\frac{cos\mathrm{\θ}}{{\sin }^2\mathrm{\θ}(sin\mathrm{\θ}+\mathrm{\β})}\frac{1}{1+\cot \mathrm{\θ}(t^2/l^2)}---\left(10\right)$

Improve equivalent elastic constant E in class cellular sandwich face in the Y direction_cyDerivation

Assume in the equivalent model material after equivalence that direct stress in the Y direction is σ_cy, it is in uniform simple tension state, then has:

$M=\frac{1}{2}{P}_{y}lcos\mathrm{\θ}---\left(11\right)$

P_y=σ_cyA_y=σ_cyblcosθ(12)

Wallboard AB is by the amount of deflection of the generation bent:

${\mathrm{\δ}}_{AB1}==\frac{P_y{\mathrm{cos\θl}}^3}{E_s{\mathrm{bt}}^3}---\left(13\right)$

The axial elongation amount of wallboard AB:

${\mathrm{\δ}}_{AB2}=\frac{P_{y}lsin\mathrm{\θ}}{E_{s}bt}---\left(14\right)$

In like manner wallboard BC is by the amount of deflection bending generation:

${\mathrm{\δ}}_{BC1}=\frac{P_{y}cos\mathrm{\θ}}{{\mathrm{bt}}^3}\frac{l^3}{E_s}---\left(15\right)$

The axial elongation amount of wallboard BC:

${\mathrm{\δ}}_{BC2}=\frac{P_y}{bt}\frac{sin\mathrm{\θ}l}{E_s}---\left(16\right)$

Equivalent strain ε in the X direction can be obtained by Hooke's law_cxFor:

${\mathrm{\ϵ}}_{cx}=-\frac{2\left({\mathrm{\δ}}_{AB1}\sin \mathrm{\θ}-{\mathrm{\δ}}_{AB2}\cos \mathrm{\θ}\right)}{2l\cos \mathrm{\θ}}=-\frac{P_y{l}^2\sin \mathrm{\θ}}{E_s{\mathrm{bt}}^3}\left(1-\frac{t^2}{l^2}\right)---\left(17\right)$

In like manner can obtain equivalent strain ε in the Y direction_cyFor:

${\mathrm{\ϵ}}_{cy}=\frac{P_y{\cos }^2{\mathrm{\θl}}^3}{E_{s}b(h+lsin\mathrm{\θ})t^3}(1+({\mathrm{\βsec}}^2\mathrm{\θ}+{\tan }^2\mathrm{\θ}\left)\frac{t^2}{l^2}\right)---\left(18\right)$

Definition according to Poisson's ratio, it is known that improve class cellular sandwich equivalent Poisson's ratio ν in the Y direction_cyFor:

${\mathrm{\ν}}_{cy}=\left|\frac{{\mathrm{\ϵ}}_{cx}}{{\mathrm{\ϵ}}_{cy}}\right|=\frac{\left(\mathrm{\β}+\sin \mathrm{\θ}\right)\sin \mathrm{\θ}}{{\cos }^2\mathrm{\θ}}\frac{1-t^2/l^2}{1+\left({\mathrm{\βsec}}^2\mathrm{\θ}+{\tan }^2\mathrm{\θ}\right)\left(t^2/l^2\right)}---\left(19\right)$

Definition according to elastic modelling quantity, it is known that improve class cellular sandwich equivalent elastic modulus E in the Y direction_cyFor:

$E_{cy}=\frac{{\mathrm{\σ}}_{cy}}{{\mathrm{\ϵ}}_{cy}}=E_s\frac{t^3}{l^3}\frac{(sin\mathrm{\θ}+\mathrm{\β})}{{\cos }^3\mathrm{\θ}}\frac{1}{1+\left({\mathrm{\βsec}}^2\mathrm{\θ}+\tan \mathrm{\θ}\right)(t^2/l^2)}---\left(20\right)$

Wherein β=h/l。

In formula, the implication of each symbol is: t is length mm, the h that thickness mm, l are hypotenuse cell wall of thin cell wall is thickness mm, the E that length mm, b are sandwich of straight flange cell wall_cx、E_cyFor cellular sandwich equivalent elastic modulus MPa on x, y direction；E_sElastic modelling quantity MPa, ν for sandwich material_cx,ν_cyCellular sandwich equivalent Poisson's ratio in the x, y direction。

Derivation in sum, it is possible to the computing formula of the equivalent elastic constant of the class that is improved honeycomb sandwich structure:

$\left\{\begin{array}{c}{E}_{cx}=\frac{{\mathrm{\σ}}_{cx}}{{\mathrm{\ϵ}}_{cx}}=E_s\frac{t^3}{l^3}\frac{\cos \mathrm{\θ}}{{\sin }^2\mathrm{\θ}\left(\sin \mathrm{\θ}+\mathrm{\β}\right)}\frac{1}{1+\cot \mathrm{\θ}\left(t^2/l^2\right)}\\ E_{cy}=\frac{{\mathrm{\σ}}_{cy}}{{\mathrm{\ϵ}}_{cy}}=E_s\frac{t^3}{l^3}\frac{\left(\sin \mathrm{\θ}+\mathrm{\β}\right)}{{\cos }^3\mathrm{\θ}}\frac{1}{1+\left({\mathrm{\βsec}}^2\mathrm{\θ}+\tan \mathrm{\θ}\right)\left(t^2/l^2\right)}\\ {\mathrm{\ν}}_{cx}=\frac{{\mathrm{\ϵ}}_{cy}}{{\mathrm{\ϵ}}_{cx}}=\frac{{\mathrm{cos\θ}}^2\left(1-t^2/l^2\right)}{\left(\mathrm{\β}+\sin \mathrm{\θ}\right)\sin \mathrm{\θ}}\frac{1}{1+{\cot }^2\mathrm{\θ}\left(t^2/l^2\right)}\\ {\mathrm{\ν}}_{cy}=\frac{{\mathrm{\ϵ}}_{cx}}{{\mathrm{\ϵ}}_{cy}}=\frac{\left(\mathrm{\β}+\sin \mathrm{\θ}\right)\sin \mathrm{\θ}}{{\cos }^2\mathrm{\θ}}\frac{1-t^2/l^2}{1+\left({\mathrm{\βsec}}^2\mathrm{\θ}+{\tan }^2\mathrm{\θ}\right)\left(t^2/l^2\right)}\end{array}\right.---\left(21\right)$

Consider modal situation in the course of processing, desirable θ=45 °, h=2l, β=2, and improve in class honeycomb cell element wall thickness t in actual size much smaller than the long l of cell element wall, namely t < < l, then above-mentioned formula can abbreviation for then to have；

$\left\{\begin{array}{c}{E}_{cx}=\frac{4\sqrt{2}-2}{7}{E}_s\frac{t^3}{l(t^2+l^2)}\\ E_{cy}=(4\sqrt{2}+2)E_s\frac{t^3}{l(l^2+5t^2)}\\ {\mathrm{\&nu;}}_{cx}=\frac{2\sqrt{2}-1}{7}\frac{1-t^2/l^2}{1+t^2/l^2}\\ {\mathrm{\&nu;}}_{cy}=(1+2\sqrt{2})\frac{1-t^2/l^2}{1+5t^2/l^2}\end{array}\right.---\left(21\right)$

And the mechanics parameter formula of class honeycomb sandwich construction is as follows:

$\left\{\begin{array}{c}{E}_{cx}=E_s\frac{t^3}{l^3}\frac{\mathrm{\&beta;}+cos\mathrm{\&theta;}}{\mathrm{\&beta;}+sin\mathrm{\&theta;}}\&times;\frac{1}{{\sin }^2\mathrm{\&theta;}+{\cos }^2\mathrm{\&theta;}\&times;t^2/l^2+\mathrm{\&beta;}\&times;t^2/l^2}\\ E_{cy}=E_s\frac{t^3}{l^3}\frac{\mathrm{\&beta;}+\sin \mathrm{\&theta;}}{\mathrm{\&beta;}+\cos \mathrm{\&theta;}}\&times;\frac{1}{{\cos }^2\mathrm{\&theta;}+{\sin }^2\mathrm{\&theta;}\&times;t^2/l^2+\mathrm{\&beta;}\&times;t^2/l^2}\\ {\mathrm{\&nu;}}_{cx}=\frac{\mathrm{\&beta;}+cos\mathrm{\&theta;}}{\mathrm{\&beta;}+\sin \mathrm{\&theta;}}\&times;\frac{sin\mathrm{\&theta;}cos\mathrm{\&theta;}(1-t^2/l^2)}{{\sin }^2\mathrm{\&theta;}+{\cos }^2\mathrm{\&theta;}\&times;t^2/l^2+\mathrm{\&beta;}\&times;t^2/l^2}\\ {\mathrm{\&nu;}}_{cy}=\frac{\mathrm{\&beta;}+\sin \mathrm{\&theta;}}{\mathrm{\&beta;}+cos\mathrm{\&theta;}}\&times;\frac{sin\mathrm{\&theta;}\cos \mathrm{\&theta;}(1-t^2/l^2)}{{\cos }^2\mathrm{\&theta;}+{\sin }^2\mathrm{\&theta;}\&times;t^2/l^2+\mathrm{\&beta;}\&times;t^2/l^2}\end{array}\right.---\left(22\right)$

Then above-mentioned formula (22) can abbreviation for then to have；

$\left\{\begin{array}{c}{E}_{cx}=E_s\frac{t^3}{l^3}\&times;\frac{2}{1+5t^2/l^2}\\ E_{cy}=E_s\frac{t^3}{l^3}\&times;\frac{2}{1+5t^2/l^2}\\ {\mathrm{\&nu;}}_{cx}=\frac{1-t^2/l^2}{1+5t^2/l^2}\\ {\mathrm{\&nu;}}_{cy}=\frac{1-t^2/l^2}{1+5t^2/l^2}\end{array}\right.---\left(23\right)$

Relatively can be improved class honeycomb sandwich structure equivalent elastic modulus in the Y direction, equivalence Poisson's ratio of above-mentioned formula (21), (23) is substantially big than class honeycomb, and equivalent elastic modulus and Poisson's ratio are substantially little than class honeycomb in the X direction, for in engineering, this requires that a direction material mechanical performance is good, the situation that another direction material mechanical performance is general provides new material to select。Therefore, this improvement class honeycomb sandwich structure has important use in engineering。

Class honeycomb sandwich structure processing method

Embodiment one

A kind of for processing the method improving class honeycomb sandwich construction, referring to Fig. 9, it comprises the following steps:

S1: select to be combined the arch bar element 5 formed as minimum process unit by first hypotenuse the 1, second hypotenuse the 3, first vertical edge 2 and the second vertical edge 4, repeat the adjacent upright limit of identical arch bar element 5 bonding to combine bonding growth strip assembled unit 6。

S2: by positioned opposite to the strip assembled unit 61 in four root length strip assembled units 6 and No. two strip assembled units 62, and ensure the length of its first vertical edge 2 that staggers；By No. three strip assembled units 63 and No. two back-to-back layouts of strip assembled unit 62, and ensure that its horizontal sides coincides；By positioned opposite to No. four strip assembled units 64 and a strip assembled unit 61, and ensure that its vertical edge is on same vertical curve。

S3: the topcoating daub stick that a strip assembled unit 62, No. three strip assembled units 63 of 61, No. two strip assembled units and No. four strip assembled units 64 are contacted, carry out bonding and pressing, ultimately form improvement class honeycomb sandwich construction, after the machining cell bonding of this pattern, the wall thickness of criss-cross vertical edges is the twice of hypotenuse wall thickness。

Further, in described S1, arch bar element 5 is as minimum process unit, and its processing method is, adopts thin-walled part material to carry out Bending Processing, and the angle of bending is repeatedly orderly 45 ° and 180 °, and the thickness adopting metal thin-wall panel material is 0.5mm-1.5mm。

Further, in described S1, arch bar element 5 is as minimum process unit, and its processing method is, adopts metal solid slab, writes numerical control program according to the shape of minimum process unit, carry out linear cutter, and metal solid slab thickness used herein is more than 5mm。

Further, described metal thin-wall panel material is aluminium alloy。

Further, described metal solid slab is aluminium alloy。

Embodiment two

A kind of for processing the method improving class honeycomb sandwich construction, more than the minimum process unit of embodiment one one of the minimum process unit of this kind of scheme increases limit, mainly solve and embodiment one exists the unstable problem of line face adhesive spots A, and then it is replaced by the bonding way B between face and face, improve stablizing of connection, add bonding strength。It comprises the following steps:

S11: select to be combined the channel-shaped strip element 7 formed as minimum process unit by first hypotenuse the 1, second hypotenuse the 3, first vertical edge 2 and the second vertical edge 4, repeat the adjacent upright limit of identical channel-shaped strip element 7 bonding to combine the continuous channel-shaped assembled unit 8 of bonding one-tenth。

S12: by positioned opposite to continuous for No. in four continuous channel-shaped assembled units 8 channel-shaped assembled unit 81 and No. two continuous channel-shaped assembled units 82, and ensure the length of its first vertical edge 2 that staggers；By No. three continuous channel-shaped assembled units 83 and No. two continuous back-to-back layouts of channel-shaped assembled unit 82, and ensure that its horizontal sides coincides；By positioned opposite to No. four continuous channel-shaped assembled units 84 and a continuous channel-shaped assembled unit 81, and ensure that its vertical edge is on same vertical curve。

S13: the topcoating daub stick that a continuous channel-shaped assembled unit 82, No. three continuous channel-shaped assembled units 83 of 81, No. two continuous channel-shaped assembled units and No. four continuous channel-shaped assembled units 84 are contacted, carry out bonding and pressing, ultimately form improvement class honeycomb sandwich construction, after the machining cell bonding of this pattern, article two, the wall thickness of criss-cross vertical edges, article one, limit is the twice of hypotenuse wall thickness, and limit is four times of hypotenuse wall thickness。

Further, in described S11, channel-shaped strip element 7 adopts metal thin-wall panel material to carry out Bending Processing, and the angle of bending is repeatedly orderly 90 °, 45 ° and 180 °, and the thickness adopting metal thin-wall panel material is 0.5mm-1.5mm。

Further, in described S11, channel-shaped strip element 7 adopts metal solid slab, writes numerical control program according to its shape, carries out linear cutter, and metal solid slab thickness used herein should be greater than 5mm。

Further, described metal thin-wall panel material is aluminium alloy。

Further, described metal solid slab is aluminium alloy。

Claims (10)

1. one kind is improved class honeycomb sandwich construction, the minimum mechanical analysis unit of this structure is the first hypotenuse (1) and first vertical edge (2) at composition the first obtuse angle, with the second hypotenuse (3) and the second vertical edge (4) that form the second obtuse angle, and two vertical edges axisymmetricly are connected together by adhesive glue；

The hypotenuse end points that the structure further expanded is minimum mechanical analysis unit upper and lower, symmetrical connects, and the horizontal sides end points of neighbouring unit is connected with vertical edge end points。

2. a kind of improvement class honeycomb sandwich construction according to claim 1, it is characterized in that: described the first hypotenuse (1), the second hypotenuse (3) length are equal, and the first vertical edge (2), the second vertical edge (4) length are equal。

3. one kind is used for processing the method improving class honeycomb sandwich construction described in claim 1-2, it is characterised in that it comprises the following steps:

S1: select to be combined the arch bar element (5) that formed as minimum process unit by the first hypotenuse (1), the second hypotenuse (3), the first vertical edge (2) and the second vertical edge (4), repeats the adjacent upright limit of identical arch bar element (5) bonding to combine bonding growth strip assembled unit (6)；

S2: by positioned opposite to a strip assembled unit (61) in four root lengths strip assembled unit (6) and No. two strip assembled units (62), and ensure the length of its first vertical edge (2) of staggering；By No. three strip assembled units (63) and No. two back-to-back layouts of strip assembled unit (62), and ensure that its horizontal sides coincides；By positioned opposite to No. four strip assembled units (64) and a strip assembled unit (61), and ensure that its vertical edge is on same vertical curve；

S3: the topcoating daub stick that a strip assembled unit (61), No. two strip assembled units (62), No. three strip assembled units (63) and No. four strip assembled units (64) are contacted, carry out bonding and pressing, ultimately form improvement class honeycomb sandwich construction, after the machining cell bonding of this pattern, the wall thickness of criss-cross vertical edges is the twice of hypotenuse wall thickness。

4. the method improving class honeycomb sandwich construction according to claim 3, it is characterized in that: in described S1, arch bar element (5) is as minimum process unit, its processing method is, thin-walled part material is adopted to carry out Bending Processing, the angle of bending is repeatedly orderly 45 ° and 180 °, and the thickness adopting metal thin-wall panel material is 0.5mm-1.5mm。

5. the method improving class honeycomb sandwich construction according to claim 3, it is characterized in that: in described S1, arch bar element (5) is as minimum process unit, its processing method is, adopt metal solid slab, numerical control program is write according to the shape of minimum process unit, carrying out linear cutter, metal solid slab thickness used herein is more than 5mm。

6. one kind is used for processing the method improving class honeycomb sandwich construction described in claim 1-2, it is characterised in that it comprises the following steps:

S11: select to be combined the channel-shaped strip element (7) that formed as minimum process unit by the first hypotenuse (1), the second hypotenuse (3), the first vertical edge (2) and the second vertical edge (4), repeats the adjacent upright limit of identical channel-shaped strip element (7) bonding to combine the continuous channel-shaped assembled unit (8) of bonding one-tenth；

S12: by positioned opposite to a continuous channel-shaped assembled unit (81) in four continuous channel-shaped assembled units (8) and No. two continuous channel-shaped assembled units (82), and ensure the length of its first vertical edge (2) of staggering；By No. three continuous channel-shaped assembled units (83) and No. two back-to-back layouts of continuous channel-shaped assembled unit (82), and ensure that its horizontal sides coincides；By positioned opposite to No. four continuous channel-shaped assembled units (84) and a continuous channel-shaped assembled unit (81), and ensure that its vertical edge is on same vertical curve；

S13: the topcoating daub stick that a continuous channel-shaped assembled unit (81), No. two continuous channel-shaped assembled units (82), No. three continuous channel-shaped assembled units (83) and No. four continuous channel-shaped assembled units (84) are contacted, carry out bonding and pressing, ultimately form improvement class honeycomb sandwich construction, after the machining cell bonding of this pattern, article two, the wall thickness of criss-cross vertical edges, article one, limit is the twice of hypotenuse wall thickness, and limit is four times of hypotenuse wall thickness。

7. the method improving class honeycomb sandwich construction according to claim 6, it is characterized in that: in described S11, channel-shaped strip element (7) adopts metal thin-wall panel material to carry out Bending Processing, the angle of bending is repeatedly orderly 90 °, 45 ° and 180 °, and the thickness adopting metal thin-wall panel material is 0.5mm-1.5mm。

8. the method improving class honeycomb sandwich construction according to claim 6, it is characterized in that: in described S11, channel-shaped strip element (7) adopts metal solid slab, writing numerical control program according to its shape, carry out linear cutter, metal solid slab thickness used herein should be greater than 5mm。

9. the method for the improvement class honeycomb sandwich construction according to claim 4 or 7, it is characterised in that: described metal thin-wall panel material is aluminium alloy。

10. the method for the improvement class honeycomb sandwich construction according to claim 5 or 8, it is characterised in that: described metal solid slab is aluminium alloy。