CN106777627A - A kind of honeycomb inhales the contracting of ripple plate than simulation material building method - Google Patents

A kind of honeycomb inhales the contracting of ripple plate than simulation material building method Download PDF

Info

Publication number
CN106777627A
CN106777627A CN201611113495.4A CN201611113495A CN106777627A CN 106777627 A CN106777627 A CN 106777627A CN 201611113495 A CN201611113495 A CN 201611113495A CN 106777627 A CN106777627 A CN 106777627A
Authority
CN
China
Prior art keywords
honeycomb
contracting
ripple plate
inhales
simulation material
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.)
Pending
Application number
CN201611113495.4A
Other languages
Chinese (zh)
Inventor
袁黎明
许勇刚
樊康
王晓冰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Radio Equipment Research Institute
Original Assignee
Shanghai Radio Equipment Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Radio Equipment Research Institute filed Critical Shanghai Radio Equipment Research Institute
Priority to CN201611113495.4A priority Critical patent/CN106777627A/en
Publication of CN106777627A publication Critical patent/CN106777627A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/17—Mechanical parametric or variational design
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Evolutionary Computation (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Building Environments (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The contracting of ripple plate is inhaled than simulation material building method the invention discloses a kind of honeycomb, and it is comprised the following steps：Step 1, the modeling of ripple plate is inhaled to honeycomb, and simulation calculation honeycomb inhales reflectivity of the ripple plate when electromagnetic wave difference angle is incident；Step 2, at contracting is than test frequency, reflectivity during by calculating simulation material different-thickness and electromagnetic absorption agent different volumes fraction, and the reflectivity with honeycomb suction ripple plate at prototype test frequency is compared, reflectivity of the contracting than simulation material that reflectivity of the ripple plate at prototype test frequency is inhaled closest to honeycomb is found, so that obtaining honeycomb inhales the contracting of ripple plate than simulation material formulation parameter and thickness；Step 3, construction honeycomb inhales the contracting of ripple plate and compares simulation material.The present invention carries out honeycomb and inhales the contracting of ripple plate than simulation material design by reflectance factor, breaches limitation of the electromagnetism contracting than material electromagnetic parameter and geometric parameter in theory, realizes honeycomb and inhales construction of the ripple plate contracting than simulation material.

Description

A kind of honeycomb inhales the contracting of ripple plate than simulation material building method
Technical field
The invention belongs to electromagnetic characteristic of scattering technical field of measurement and test, it is related to a kind of honeycomb to inhale the contracting of ripple plate than simulation Material building method.
Background technology
Honeycomb inhales ripple plate due to lightweight and have at a relatively high strength and stiffness again, and can be formed can carry and energy The dual-use function of ripple is inhaled, therefore is widely used in the fields such as Aeronautics and Astronautics.The mesh of ripple plate is inhaled with honeycomb in order to measure Mark Electromagnetic Scattering Characteristics, conventional method has full-scale measurement method and electromagnetism scaling measurement method, due to electromagnetism scaling measurement due to The advantages of controllability is good, testing cost is low, measuring accuracy is high, it has also become the important means of electromagnetic characteristic of scattering research. In electromagnetism scaling measurement, it is desirable to which scale model is identical with the full-scale target electromagnetic parameter of prototype, and electric size (target size and survey Amount the ratio between wavelength) ratio keeps constant.But the dispersion characteristics of ripple plate material, particularly honeycomb are inhaled due to honeycomb and inhales ripple The complicated geometry of plate, cause honeycomb to inhale the contracting of ripple plate more difficult than the construction of simulation material, it has also become target contracting is than surveying The bottleneck of quantity research.
A kind of Chinese invention patent " magnetic wave absorbing patch contracting is than analog composite material compound method " (publication number： CN105304248A formula of the contracting than analog composite material) is obtained by the optimization design of reflectivity for magnetic wave absorbing patch, Realize that magnetic wave absorbing patch analog composite material is constructed；" contracting based on electromagnetic parameter optimization design is than compound for Chinese invention patent Material compound method " (publication number：CN105224762A electromagnetic parameter optimization design unanimously) is carried out according to corner reflection characteristic wide, it is real Show stealth material contracting to be constructed than simulation material；Chinese invention patent " a kind of wideband contracting is than analog composite material compound method " (application number：201510831461.8) wideband model is obtained by the optimization design of multilayer material reflectivity for magnetic wave absorbing patch The formula inside contracted than analog composite material is enclosed, realizes that the contracting of magnetic wave absorbing patch wideband is constructed than analog composite material.These inventions Problem of the absorbing material contracting than design construction for efficiently solving complicated electromagnetic parameter is designed by optimization of reflectivity, but is not related to And the absorbing material contracting of labyrinth parameter is than design construction problem.2010 the 4th phases《Guidance and fuse》Document disclosed in periodical " some basic problems of the electromagnetic scattering contracting than analogue measurement of Rough Sea Surfaces " quantitative analysis is unsatisfactory for geometric similarity and thing The error that reason similitude is required and introduced；2014 the 4th phases《Guidance and fuse》" sea condition sea high electromagnetism contracts document disclosed in periodical Than analogy method and verification experimental verification " describe and construction is successfully simulated completely in laboratory according to geometric similarity and Physical similarity The sea condition PM high spectrum Rough Sea Surfaces of sufficient scaling measurement condition.These documents are not to being difficult to geometric similarity and physics in engineering The target contracting of similitude proposes effective method than construction.
The content of the invention
Contracting present invention aim to address geometric similarity and the target of Physical similarity is than the construction difficulty of material Problem, there is provided a kind of contracting carries out honeycomb suction ripple plate contracting and set than simulation material than the building method of material by reflectance factor Meter, breaches limitation of the electromagnetism contracting than material electromagnetic parameter and geometric parameter in theory.
To reach above-mentioned purpose, the contracting of ripple plate is inhaled than simulation material building method the invention provides a kind of honeycomb, its Comprise the following steps：
Step 1, the modeling of ripple plate is inhaled to honeycomb, and it is incident in electromagnetic wave difference angle that simulation calculation honeycomb inhales ripple plate When reflectivity；
Step 2, honeycomb is inhaled the contracting of ripple plate and is compared than simulation material optimization of reflectivity：At contracting is than test frequency, pass through Reflectivity when calculating simulation material different-thickness and electromagnetic absorption agent different volumes fraction, and ripple plate is inhaled in original with honeycomb Reflectivity at type test frequency is compared, and finds closest to honeycomb and inhales reflectivity of the ripple plate at prototype test frequency Reflectivity of the contracting than simulation material so that obtaining honeycomb inhales the contracting of ripple plate than simulation material formulation parameter and thickness；
Step 3, construction honeycomb inhales the contracting of ripple plate and compares simulation material.
Preferably, the modeling in step 1 is included：The periodic unit modeling of ripple plate is first inhaled to honeycomb, and in cycle list First bottom builds and periodic unit area identical metal plate.Wherein, the purpose for building metal plate is to obtain honeycomb Structure inhales the reflectivity of ripple plate, because metallic reflection plate is contained in material bottom surface when the reflectivity of material is defined.
Preferably, in step 1, it is logical that described honeycomb inhales reflectivity of the ripple plate when electromagnetic wave difference angle is incident Cross is carried out simulation calculation and is obtained using business software FEKO.
Preferably, in step 1, the method for carrying out simulation calculation using FEKO is to set cycle boundary by periodic unit And/reflectance factor calculating is transmitted, inhale reflectivity of the ripple plate when electromagnetic wave difference angle is incident so as to obtain honeycomb.
Preferably, described step 2 is also included：
Step 2.1, according to the honeycomb suction ripple plate obtained by step 1 simulation calculation when electromagnetic wave difference angle is incident Reflectivity make honeycomb and inhale reflectance curve of the ripple plate prototype at test frequency；
Step 2.2, test obtains the effective electromagnetic parameter test data of mixture during one group of electromagnetic absorption agent different content, And calculating is fitted to the data tested using equivalent medium theory formula, draw the fitting parameter of each effective electromagnetic parameter；
Step 2.3, at contracting is than test frequency, the fitting parameter for obtaining is calculated by reflectivity computing formula, step 2.2 Reflectivity when calculating simulation material different-thickness, electromagnetic wave incidence angles degree and electromagnetic absorption agent different volumes fraction, system Make reflectance curve, compare the reflectivity song for finding out the honeycomb suction ripple plate obtained with step 2.1 at prototype test frequency The closest reflectance curve of line, so that obtaining honeycomb inhales the contracting of ripple plate than simulation material formulation parameter and thickness.
Preferably, in step 2.2, equivalent medium theory formula is：
Wherein,
υ=ap2+bp+c
In formula, φeffRepresent the effective dielectric constant or magnetic conductivity of mixture, φiFor the electromagnetism of bond substrates material is joined Number, φmBe the effective electromagnetic parameter of maximum concentration mixture, when p represents the effective electromagnetic parameter for calculating low concentration mixture to The volume fraction of the bond substrates to be added needed for maximum concentration mixture, a, b and c are fitting parameter；Finally, using fitting Parameter a, b and c calculate the effective electromagnetic parameter of electromagnetic absorption agent less than the arbitrary volume fraction of maximum concentration.
Preferably, in step 2.3, when TE ripple oblique incidences, described reflectivity computing formula is：
ZinIt is the input impedance of plate material surface；εrTo contract than the complex dielectric permittivity of simulation material；μrIt is contracting ratio simulation material The complex permeability of material；fsFor test frequency is compared in contracting；hsTo contract than the thickness of simulation material；RL is the reflectivity of material；C represents electricity Speed of the magnetic wave in free space.
Preferably, in step 2.3, when TM ripple oblique incidences, described reflectivity computing formula is：
ZinIt is the input impedance of plate material surface；εrTo contract than the complex dielectric permittivity of simulation material；μrIt is contracting ratio simulation material The complex permeability of material；fsFor test frequency is compared in contracting；hsTo contract than the thickness of simulation material；RL is the reflectivity of material；C represents electricity Speed of the magnetic wave in free space.
Described contracting includes electromagnetic absorption agent and binding agent than simulation material；Wherein, spherical carbonyl is selected in electromagnetic absorption agent Iron, binding agent selects polycarbonate polyurethane.
Preferably, step 3, it refers to than simulation by described contracting that construction honeycomb inhales the contracting of ripple plate than the method for simulation material Material is made by spraying with calendering assembling process, and its main process includes that electromagnetic absorption agent pretreatment, electromagnetism are inhaled Receive agent and polycarbonate polyurethane, spray mo(u)lding, calendering formation and post-treating and other steps.
Electromagnetism contracting is more identical with prototype test frequency range than frequency range in contracting than the electromagnetic parameter of theory calls material, while material Geometric parameter meets scale-relation.But the dispersion characteristics and honeycomb due to material inhale the complicated geometry of ripple plate, therefore It is difficult to construct the simulation material for fully meeting scale-relation in engineering.The present invention is based near according to Electromagnetic Scattering of Target high frequency Like computational methods, the scattered field identical obtained when target surface reflectance factor is identical is theoretical, and honeybee is carried out by reflectance factor Nest structure inhales the contracting of ripple plate than simulation material design, so as to breach electromagnetism contracting than the material electromagnetic parameter and geometric parameter in theory Limitation.
Brief description of the drawings
Fig. 1 is that honeycomb inhales ripple plate structure schematic diagram.
Fig. 2 is that honeycomb inhales ripple plate reflectivity simulation calculation curve map.
Fig. 3 is that honeycomb inhales ripple plate and its contracting than simulation material reflectivity comparison diagram.
Specific embodiment
Below in conjunction with accompanying drawing, by specific embodiment, the invention will be further described, and these embodiments are merely to illustrate The present invention, is not limiting the scope of the invention.
Honeycomb proposed by the present invention inhales the contracting of ripple plate than simulation material building method, and its process mainly includes honeycomb Inhale ripple plate reflectivity modeling and simulating, honeycomb and inhale the contracting of ripple plate than simulation material optimization of reflectivity and honeycomb suction ripple plate contracting ratio Simulation material constructs three steps, and detailed process is as follows：
Step one：Honeycomb inhales ripple plate reflectivity modeling and simulating
Typical honeycomb is inhaled ripple plate and is formed by regular hexagon carbonaceous hollow-core construction periodic array, as shown in Figure 1.Wherein charcoal The thickness of matter skeleton is that Cycle Length in the horizontal direction is a.It is worth noting that, the carbonaceous bone on the vertical border of periodic unit Frame thickness is t/2.Ripple plate periodic array feature is inhaled according to above-mentioned honeycomb, it is possible to use business software FEKO is modeled Simulation calculation.First carry out honeycomb and inhale the modeling of ripple plate periodic unit, and built and periodic unit area in periodic unit bottom Identical metal plate, after the completion of modeling, cycle boundary (in Fig. 1 shown in the dotted line of left figure) and plane electromagnetism is set using FEKO The different incident direction of ripple, and/reflectance factor calculating is transmitted, the reflectance factor obtained by calculating is honeycomb and inhales ripple Reflectivity of the plate when electromagnetic wave difference angle is incident.
In the present embodiment, honeycomb inhales ripple plate regular hexagon carbonaceous skeleton and (main frame of ripple plate is inhaled as honeycomb Structure, it provides material normal direction mechanical property) the center line length of side is 1.5mm, carbonaceous skeleton thickness is 0.2mm, and honeycomb inhales ripple The thickness of plate is 10mm, and the metallic plate of 1mm is built in honeycomb periodic unit bottom surface；Carbonaceous skeleton is nonmagnetic substance, its Dielectric constant is 1, and electrical conductivity is 15S/m；Incident electromagnetic wave is TE ripples, and frequency is 2GHz, incident angle is 0 °~75 °, angle At intervals of 3 °.Simulation result is as shown in Fig. 2 it can be seen that when electromagnetic wave vertical incidence, honeycomb inhales ripple The reflectivity of plate reaches -3dB, and as the increase reflectivity absolute value of incident angle is gradually reduced.
Step 2：Honeycomb inhales the contracting of ripple plate than simulation material optimization of reflectivity
For uniform plate material, TE ripples (electric field component of electromagnetic wave and Electromagnetic Wave Propagation direction and suction ripple plate normal side To constitute plane it is vertical) oblique incidence when, its reflectivity computing formula is：
And TM ripples (magnetic-field component of electromagnetic wave and Electromagnetic Wave Propagation direction and to inhale the plane that ripple plate normal direction constitutes vertical Directly) during oblique incidence, its reflectivity computing formula is：
Wherein, ZinIt is the input impedance of plate material surface；εrTo contract than the complex dielectric permittivity of simulation material；μrFor mould is compared in contracting Intend the complex permeability of material；fsFor test frequency is compared in contracting；hsTo contract than the thickness of simulation material；J is unit imaginary part, its meaning Justice is 1 identical with real number, and its square is equal to -1；RL is the reflectivity of material；C represents speed of the electromagnetic wave in free space Degree.
In the present embodiment, contracting is 1 than coefficient:5, then it is 10GHz to contract than test frequency, and honeycomb inhales the contracting of ripple plate than simulation Material will be formed using spherical carbonyl iron particle with polycarbonate polyurethane resin mixed preparing, its design process mainly include with Lower three parts.
(1) target reflectivity input.Honeycomb obtained by simulation calculation is inhaled into ripple plate to enter in electromagnetic wave difference angle Reflectivity when penetrating is designed than simulation material optimization of reflectivity as contracting and is input into, input pair as if formula (1) (2) or (3) (4) result of calculation, that is, honeycomb inhales reflectance curve of the ripple plate prototype at 2GHz.
(2) electromagnetic parameter prepares.It is equivalent when obtaining a series of electromagnetic absorption agent different contents first by experiment test Electromagnetic parameter testing data；Secondly, calculating, fitting formula are fitted to the data tested using equivalent medium theory formula For：
Wherein
υ=ap2+bp+c
In formula, φeffRepresent the effective dielectric constant or magnetic conductivity of mixture, φiIt is bond substrates material (that is, pure bonding Agent material) electromagnetic parameter, φmIt is the effective electromagnetic parameter of maximum concentration mixture, p represents that calculating low concentration mixture is equivalent To the volume fraction of the bond substrates to be added needed for maximum concentration mixture during electromagnetic parameter, a, b and c are fitting parameter； Finally, electromagnetic absorption agent is calculated using parameter a, b and c of fitting to join less than the equivalent electromagnetism of the arbitrary volume fraction of maximum concentration Number.
In the present embodiment, by spherical carbonyl iron according to 5%, 10%, 15%, 20%, 25%, 30%, 35% and 40% Volume fraction mixes with polycarbonate polyurethane, prepares external diameter 7mm, the coaxial exemplar of internal diameter 3mm, thickness 2mm, using biography Defeated/bounce technique carries out material effective electromagnetic parameter test, and in order to reduce measurement error, the test sample of every kind of material prepares three Coaxial exemplar, and tested the average value of these three coaxial exemplar test results as this kind of effective electromagnetic parameter of material；Profit Electromagnetic parameter is fitted calculating, in the Fitting Calculation, φ at 10GHz with formula (5) to testiIt is polycarbonate polyurethane Electromagnetic parameter；φmIt is the effective electromagnetic parameter of mixture that spherical carbonyl iron volume fraction is 40%.When the equivalent dielectric of fitting During constant, the value for obtaining parameter a, b and c is respectively 6.78, -12.23 and 7.22；And when equivalent permeability is fitted, joined The value of number a, b and c is respectively -1.11,0.85 and 3.23.Parameter a, b and c obtained using fitting can accurately calculate spherical carbonyl Base iron volume fraction is the effective electromagnetic parameter of the mixture of arbitrary volume fraction in the range of 0~40%.
(3) contracting is than simulation material parameter optimization.
At contracting is than test frequency, during by calculating simulation material different-thickness and electromagnetic absorption agent different volumes fraction Reflectivity, and inhale reflectivity of the ripple plate at prototype test frequency with honeycomb and be compared, obtain reflectance curve the most Close result, so that obtaining honeycomb inhales the contracting of ripple plate than simulation material formulation parameter and thickness.
In the present embodiment, contracting than test frequency 10GHz locate, set contracting than simulation material thickness range be 0.5mm~ 2.0mm, thickness is at intervals of 0.05mm；Spherical carbonyl iron volume fraction range is 0~40%, and volume fraction is at intervals of 1%；Circulation Reflectivity when calculating simulation material different-thickness and electromagnetic absorption agent different volumes fraction, and exist with honeycomb suction ripple plate The reflectivity of the simulation calculation at 2GHz is compared, and finds out the minimum reflectance curve of deviation.Show that best simulation material is thick Spend for the volume fraction of 0.7mm, wherein spherical carbonyl iron is 35%, corresponding effective dielectric constant is 10.42-0.24j, equivalent Magnetic conductivity is 1.28-0.98j.Reflectivity of the material at 10GHz inhales simulation calculation of the ripple plate at 2GHz with honeycomb Reflectivity correlation curve as shown in figure 3, as can be seen from the figure they very coincide, the maximum deviation in the range of 0 °~75 ° Be 0.039dB, this show the contracting designed it is more complete than simulation material can meet honeycomb inhale the contracting of ripple plate will than analogue measurement Ask.
Step 3：Honeycomb is inhaled the contracting of ripple plate and is constructed than simulation material
According to design result, carry out honeycomb suction ripple plate contracting using spraying and calendering assembling process and compare simulation material Construction makes, and electromagnetic absorption agent selects spherical carbonyl iron, binding agent to select polycarbonate polyurethane, and its main process includes electromagnetism Absorbent pretreatment, electromagnetic absorption agent and polycarbonate polyurethane, spray mo(u)lding, calendering formation and post-treating and other steps.
In the present embodiment, by spherical carbonyl iron particle respectively with polycarbonate polyurethane resin according to the volume fraction for designing Mixed, and added a certain amount of diluent (can be for acetone, the effumability organic liquid such as absolute ethyl alcohol), wherein diluting The quality addition of agent is than the quality addition with polycarbonate polyurethane than being 1:0.8~1:1.2；Added in mixing process relative to Coupling agent (such as Silane coupling agent KH550, KH560) of the packing quality than 1%~2%, using high speed dispersion agent stirring 15~ 20 minutes, until well mixed；And then polycarbonate polyurethane curing agent is added, mass ratio is the 10% of polycarbonate polyurethane ~15%, stirred 2~3 minutes using high speed dispersion agent；After well mixed, polyester film table is sprayed at by the way of spraying Face, the thickness of coating spraying is 2 times or so of design thickness；After the completion of spraying, the coating material that will be obtained is placed in vacuum drying In case, vacuumize process is carried out, air pressure is adjusted to below 0.1 atmospheric pressure in drying box, vacuum drying chamber heating-up temperature is 50 ~60 DEG C, dry 10~15 minutes, wait the volatilization of coat inside diluent to finish, coating enters semi-cured state, is then applying Layer surface sticks another strata ester film；Coating exemplar containing double-layer filmses is placed in carries out calendering technology treatment in calender, Pressure roller spacing is gradually reduced, point 5~8 adjustment, after calendering distance determines every time, 2~3 calendering processs is carried out to exemplar, directly To the deviation between coating layer thickness and design thickness no more than 0.05mm；Finally cut out using cut-off knife and go to edge, complete honeycomb Structure is inhaled the contracting of ripple plate and is made than simulation material.
The present invention uses for reference the camouflage coating based on reflectivity design and contracts than building method, for complex geometry Honeycomb inhales the contracting of ripple plate than construction problem, proposes that a kind of honeycomb inhales the contracting of ripple plate than simulation material building method, to promote The development of scaling measurement technology contributes.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for of the invention Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (10)

1. a kind of honeycomb inhales the contracting of ripple plate than simulation material building method, it is characterised in that the method is comprised the following steps：
Step 1, inhale the modeling of ripple plate to honeycomb, and simulation calculation honeycomb inhales ripple plate when electromagnetic wave difference angle is incident Reflectivity；
Step 2, honeycomb is inhaled the contracting of ripple plate and is compared than simulation material optimization of reflectivity：At contracting is than test frequency, by calculating Reflectivity when simulation material different-thickness and electromagnetic absorption agent different volumes fraction, and ripple plate is inhaled in prototype survey with honeycomb Reflectivity at examination frequency is compared, and finds the contracting that reflectivity of the ripple plate at prototype test frequency is inhaled closest to honeycomb Than the reflectivity of simulation material, so that obtaining honeycomb inhales the contracting of ripple plate than simulation material formulation parameter and thickness；
Step 3, construction honeycomb inhales the contracting of ripple plate and compares simulation material.
2. honeycomb as claimed in claim 1 inhales the contracting of ripple plate than simulation material building method, it is characterised in that in step 1 Modeling include：The periodic unit modeling of ripple plate is first inhaled to honeycomb, and is built and periodic unit face in periodic unit bottom Product identical metal plate.
3. honeycomb as claimed in claim 1 inhales the contracting of ripple plate than simulation material building method, it is characterised in that in step 1, Described honeycomb inhales reflectivity of the ripple plate when electromagnetic wave difference angle is incident to be carried out by using business software FEKO Simulation calculation and obtain.
4. honeycomb as claimed in claim 3 inhales the contracting of ripple plate than simulation material building method, it is characterised in that in step 1, The method for carrying out simulation calculation using FEKO is cycle boundary and to be transmitted/reflectometer by being set to periodic unit Calculate, reflectivity of the ripple plate when electromagnetic wave difference angle is incident is inhaled so as to obtain honeycomb.
5. honeycomb as claimed in claim 1 inhales the contracting of ripple plate than simulation material building method, it is characterised in that described step Rapid 2 also include：
Step 2.1, inhales ripple plate anti-when electromagnetic wave difference angle is incident according to the honeycomb obtained by step 1 simulation calculation Penetrate rate and make reflectance curve of the honeycomb suction ripple plate prototype at test frequency；
Step 2.2, test obtains the effective electromagnetic parameter test data of mixture during one group of electromagnetic absorption agent different content, and profit Calculating is fitted to the data tested with equivalent medium theory formula, the fitting parameter of each effective electromagnetic parameter is drawn；
Step 2.3, at contracting is than test frequency, calculates the fitting parameter for obtaining and calculates by reflectivity computing formula, step 2.2 Reflectivity when simulation material different-thickness, electromagnetic wave incidence angles degree and electromagnetic absorption agent different volumes fraction, makes anti- Rate curve is penetrated, is compared and is found out reflectance curve of the honeycomb suction ripple plate obtained with step 2.1 at prototype test frequency most It is close reflectance curve, so that obtaining honeycomb inhales the contracting of ripple plate than simulation material formulation parameter and thickness.
6. honeycomb as claimed in claim 5 inhales the contracting of ripple plate than simulation material building method, it is characterised in that step 2.2 In, equivalent medium theory formula is：
φ e f f - φ m φ e f f + 2 φ m + υ ( φ e f f - φ m ) = p φ i - φ m φ i + 2 φ m + υ ( φ e f f - φ m ) - - - ( 5 )
Wherein,
υ=ap2+bp+c
In formula, φeffRepresent the effective dielectric constant or magnetic conductivity of mixture, φiIt is the electromagnetic parameter of bond substrates material, φm It is the effective electromagnetic parameter of maximum concentration mixture, to most highly concentrated when p represents the effective electromagnetic parameter for calculating low concentration mixture The volume fraction of the bond substrates to be added needed for degree mixture, a, b and c are fitting parameter；Finally, using the parameter of fitting A, b and c calculate effective electromagnetic parameter of the electromagnetic absorption agent less than the arbitrary volume fraction of maximum concentration.
7. honeycomb as claimed in claim 5 inhales the contracting of ripple plate than simulation material building method, it is characterised in that step 2.3 In, when TE ripple oblique incidences, described reflectivity computing formula is：
Z i n = μ r ϵ r μ r - sin 2 θ tanh ( j 2 πf s h s ϵ r μ r - sin 2 θ C ) - - - ( 1 )
R L = 20 lg | Z i n c o s θ - 1 Z i n c o s θ + 1 | - - - ( 2 )
ZinIt is the input impedance of plate material surface；εrTo contract than the complex dielectric permittivity of simulation material；μrIt is answering than simulation material of contracting Magnetic conductivity；fsFor test frequency is compared in contracting；hsTo contract than the thickness of simulation material；
RL is the reflectivity of material；C represents speed of the electromagnetic wave in free space.
8. honeycomb as claimed in claim 5 inhales the contracting of ripple plate than simulation material building method, it is characterised in that step 2.3 In, when TM ripple oblique incidences, described reflectivity computing formula is：
Z i n = ϵ r μ r - sin 2 θ ϵ r tanh ( j 2 πf s h s ϵ r μ r - sin 2 θ C ) - - - ( 3 )
R L = 20 lg | Z i n - c o s θ Z i n + c o s θ | - - - ( 4 )
ZinIt is the input impedance of plate material surface；εrTo contract than the complex dielectric permittivity of simulation material；μrIt is answering than simulation material of contracting Magnetic conductivity；fsFor test frequency is compared in contracting；hsTo contract than the thickness of simulation material；RL is the reflectivity of material；C represents electromagnetic wave and exists The speed of free space.
9. honeycomb as claimed in claim 1 inhales the contracting of ripple plate than simulation material building method, it is characterised in that described contracting Electromagnetic absorption agent and binding agent are included than simulation material；Wherein, electromagnetic absorption agent selects spherical carbonyl iron, binding agent to select poly- carbon Acid esters polyurethane.
10. honeycomb as claimed in claim 1 inhales the contracting of ripple plate than simulation material building method, it is characterised in that step 3, It refers to by spraying and calendering group by described contracting than simulation material that construction honeycomb inhales the contracting of ripple plate than the method for simulation material Synthesis type technique is made.
CN201611113495.4A 2016-12-02 2016-12-02 A kind of honeycomb inhales the contracting of ripple plate than simulation material building method Pending CN106777627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611113495.4A CN106777627A (en) 2016-12-02 2016-12-02 A kind of honeycomb inhales the contracting of ripple plate than simulation material building method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611113495.4A CN106777627A (en) 2016-12-02 2016-12-02 A kind of honeycomb inhales the contracting of ripple plate than simulation material building method

Publications (1)

Publication Number Publication Date
CN106777627A true CN106777627A (en) 2017-05-31

Family

ID=58879245

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611113495.4A Pending CN106777627A (en) 2016-12-02 2016-12-02 A kind of honeycomb inhales the contracting of ripple plate than simulation material building method

Country Status (1)

Country Link
CN (1) CN106777627A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107301301A (en) * 2017-07-06 2017-10-27 上海无线电设备研究所 A kind of building method of magnetic loss type contracting than absorbing material
CN107968265A (en) * 2017-12-06 2018-04-27 上海无线电设备研究所 It is a kind of based on contracting than theoretical high-performance wave-absorbing body design method
CN108090251A (en) * 2017-11-24 2018-05-29 上海无线电设备研究所 Design method is compared in a kind of wave transparent type composite material contracting
CN108805367A (en) * 2018-07-17 2018-11-13 广东工业大学 A kind of absorbing material optimal proportion design method based on adaptive ABC algorithms
CN109195429A (en) * 2018-09-13 2019-01-11 上海无线电设备研究所 A kind of absorbing material and its design method based on mosaic structure, production method
CN109614637A (en) * 2018-10-29 2019-04-12 上海无线电设备研究所 Design method is compared in a kind of contracting of nonmetal structure body electromagnetism
CN109614652A (en) * 2018-11-13 2019-04-12 上海无线电设备研究所 It is a kind of containing inhibit gap scattering coating contracting than target formation method
CN109766630A (en) * 2019-01-08 2019-05-17 电子科技大学 A kind of effective electromagnetic parameter extracting method of honeycomb absorbing material
CN111259534A (en) * 2020-01-13 2020-06-09 电子科技大学 Equivalent electromagnetic parameter extraction method of gradient honeycomb wave-absorbing material
CN111753403A (en) * 2020-05-29 2020-10-09 广州幻境科技有限公司 Wave absorbing performance simulation test method and system of wave absorbing material and storage medium
CN112151351A (en) * 2020-11-24 2020-12-29 季华实验室 Structure for inhibiting electromagnetic interference and wave leakage, radio frequency power supply and plasma etching equipment
CN112613205A (en) * 2020-12-12 2021-04-06 天津理工大学 Modeling method for fiber reinforced composite material low-speed cutting technological process simulation
CN112611921A (en) * 2020-12-09 2021-04-06 上海无线电设备研究所 Atmospheric sound field simulation device and electromagnetic scattering characteristic test method thereof
CN112906156A (en) * 2021-02-08 2021-06-04 电子科技大学 Equivalent electromagnetic parameter extraction method of special-shaped honeycomb wave-absorbing structure
CN112948980A (en) * 2021-03-31 2021-06-11 北京环境特性研究所 Electromagnetic scattering characteristic simulation modeling method and device of honeycomb wave-absorbing structure
CN113033053A (en) * 2021-03-26 2021-06-25 北京理工大学 Efficient electromagnetic scattering modeling and calculating method for composite target with wave-absorbing honeycomb structure
CN113960512A (en) * 2021-11-03 2022-01-21 电子科技大学 Deduction calculation method for equivalent electromagnetic parameters of rubber plate type wave-absorbing material
CN115122734A (en) * 2022-06-27 2022-09-30 盱眙欧佰特粘土材料有限公司 Wave-absorbing composite material with double-layer inclined honeycomb sandwich structure and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105224762A (en) * 2015-10-19 2016-01-06 上海无线电设备研究所 A kind of contracting based on electromagnetic parameter optimal design is than compound substance compound method
CN105304248A (en) * 2015-11-23 2016-02-03 上海无线电设备研究所 Preparation method of magnetic wave absorption patch shrinkage simulation composite material
CN106158198A (en) * 2015-11-25 2016-11-23 上海无线电设备研究所 A kind of wideband contracts than analog composite material compound method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105224762A (en) * 2015-10-19 2016-01-06 上海无线电设备研究所 A kind of contracting based on electromagnetic parameter optimal design is than compound substance compound method
CN105304248A (en) * 2015-11-23 2016-02-03 上海无线电设备研究所 Preparation method of magnetic wave absorption patch shrinkage simulation composite material
CN106158198A (en) * 2015-11-25 2016-11-23 上海无线电设备研究所 A kind of wideband contracts than analog composite material compound method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
岳慧 等: "粗糙海面的电磁散射缩比模拟测量的若干基本问题", 《制导与引信》 *
常霞: "蜂窝吸波材料等效电磁参数及反射系数的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 *
熊刚: "夹芯结构吸波隐身性能研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 *

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107301301A (en) * 2017-07-06 2017-10-27 上海无线电设备研究所 A kind of building method of magnetic loss type contracting than absorbing material
CN107301301B (en) * 2017-07-06 2020-12-22 上海无线电设备研究所 Construction method of magnetic loss type shrinkage ratio wave-absorbing material
CN108090251A (en) * 2017-11-24 2018-05-29 上海无线电设备研究所 Design method is compared in a kind of wave transparent type composite material contracting
CN107968265A (en) * 2017-12-06 2018-04-27 上海无线电设备研究所 It is a kind of based on contracting than theoretical high-performance wave-absorbing body design method
CN107968265B (en) * 2017-12-06 2020-12-22 上海无线电设备研究所 High-performance wave absorber design method based on scaling theory
CN108805367A (en) * 2018-07-17 2018-11-13 广东工业大学 A kind of absorbing material optimal proportion design method based on adaptive ABC algorithms
CN109195429A (en) * 2018-09-13 2019-01-11 上海无线电设备研究所 A kind of absorbing material and its design method based on mosaic structure, production method
CN109614637A (en) * 2018-10-29 2019-04-12 上海无线电设备研究所 Design method is compared in a kind of contracting of nonmetal structure body electromagnetism
CN109614652A (en) * 2018-11-13 2019-04-12 上海无线电设备研究所 It is a kind of containing inhibit gap scattering coating contracting than target formation method
CN109766630A (en) * 2019-01-08 2019-05-17 电子科技大学 A kind of effective electromagnetic parameter extracting method of honeycomb absorbing material
CN111259534A (en) * 2020-01-13 2020-06-09 电子科技大学 Equivalent electromagnetic parameter extraction method of gradient honeycomb wave-absorbing material
CN111259534B (en) * 2020-01-13 2022-03-15 电子科技大学 Equivalent electromagnetic parameter extraction method of gradient honeycomb wave-absorbing material
WO2021237876A1 (en) * 2020-05-29 2021-12-02 广州幻境科技有限公司 Wave-absorbing performance simulation test method and system for wave-absorbing material and storage medium
CN111753403A (en) * 2020-05-29 2020-10-09 广州幻境科技有限公司 Wave absorbing performance simulation test method and system of wave absorbing material and storage medium
CN112151351A (en) * 2020-11-24 2020-12-29 季华实验室 Structure for inhibiting electromagnetic interference and wave leakage, radio frequency power supply and plasma etching equipment
CN112611921A (en) * 2020-12-09 2021-04-06 上海无线电设备研究所 Atmospheric sound field simulation device and electromagnetic scattering characteristic test method thereof
CN112613205B (en) * 2020-12-12 2022-12-02 天津理工大学 Modeling method for fiber reinforced composite material low-speed cutting technological process simulation
CN112613205A (en) * 2020-12-12 2021-04-06 天津理工大学 Modeling method for fiber reinforced composite material low-speed cutting technological process simulation
CN112906156A (en) * 2021-02-08 2021-06-04 电子科技大学 Equivalent electromagnetic parameter extraction method of special-shaped honeycomb wave-absorbing structure
CN112906156B (en) * 2021-02-08 2022-03-15 电子科技大学 Equivalent electromagnetic parameter extraction method of special-shaped honeycomb wave-absorbing structure
CN113033053A (en) * 2021-03-26 2021-06-25 北京理工大学 Efficient electromagnetic scattering modeling and calculating method for composite target with wave-absorbing honeycomb structure
CN112948980A (en) * 2021-03-31 2021-06-11 北京环境特性研究所 Electromagnetic scattering characteristic simulation modeling method and device of honeycomb wave-absorbing structure
CN112948980B (en) * 2021-03-31 2023-04-18 北京环境特性研究所 Electromagnetic scattering characteristic simulation modeling method and device of honeycomb wave-absorbing structure
CN113960512A (en) * 2021-11-03 2022-01-21 电子科技大学 Deduction calculation method for equivalent electromagnetic parameters of rubber plate type wave-absorbing material
CN113960512B (en) * 2021-11-03 2023-03-14 电子科技大学 Deduction calculation method for equivalent electromagnetic parameters of rubber plate type wave-absorbing material
CN115122734A (en) * 2022-06-27 2022-09-30 盱眙欧佰特粘土材料有限公司 Wave-absorbing composite material with double-layer inclined honeycomb sandwich structure and preparation method thereof
CN115122734B (en) * 2022-06-27 2023-11-03 盱眙欧佰特粘土材料有限公司 Wave-absorbing composite material with double-layer inclined honeycomb sandwich structure and preparation method thereof

Similar Documents

Publication Publication Date Title
CN106777627A (en) A kind of honeycomb inhales the contracting of ripple plate than simulation material building method
CN106252873B (en) A kind of Novel Interval Methods of conformal bearer Antenna Far Field power radiation pattern
Gutierrez et al. HIRF virtual testing on the C-295 aircraft: On the application of a pass/fail criterion and the FSV method
CN111259534B (en) Equivalent electromagnetic parameter extraction method of gradient honeycomb wave-absorbing material
CN112733347B (en) Conductor-medium composite target and environment electromagnetic scattering rapid calculation method
CN106202656B (en) A kind of design method of honeycomb absorbent structure aperture space
CN108090251A (en) Design method is compared in a kind of wave transparent type composite material contracting
CN113033053B (en) Efficient electromagnetic scattering modeling and calculating method for composite target with wave-absorbing honeycomb structure
Sukharevsky et al. Modeling of ultrawideband (UWB) impulse scattering by aerial and subsurface resonant objects based on integral equation solving
Smolyanskaya et al. Study of blood plasma optical properties in mice grafted with Ehrlich carcinoma in the frequency range 0.1–1.0 THz
CN104732050B (en) Electromagnetism distribution predictor method under lightening pulse in carbon fibre material airbound target
CN109657277A (en) A kind of composite material Extraction of electromagnetic parameters method under cabin structure
He et al. A multihybrid FE-BI-KA technique for 3-D electromagnetic scattering from a coated object above a conductive rough surface
CN107301301B (en) Construction method of magnetic loss type shrinkage ratio wave-absorbing material
CN109614637B (en) Electromagnetic shrinkage ratio design method for nonmetallic structure
Somolinos et al. Shielding effectiveness measurement of an UAV simplified demonstrator through low-level swept field (LLSF) test
CN112986943B (en) Method for calculating electromagnetic scattering of honeycomb composite material target
CN106202594B (en) Time domain discontinuous Galerkin method for analyzing transient electromagnetic scattering characteristics of mixed target
Plaza et al. Characterization of joints between carbon fiber composite parts using a microstrip transmission line method
CN112948980B (en) Electromagnetic scattering characteristic simulation modeling method and device of honeycomb wave-absorbing structure
Golharani et al. The dependence of resonance frequency to landing angle in reciprocal scattering phenomena of the waves from an elliptical plasma dielectric antenna
Sun et al. Analysis of scattering from composite conductor and dielectric objects using single integral equation method and MLFMA based on JMCFIE
Yu et al. Research on the electromagnetic scattering of 3D target coated with anisotropic medium using impedance boundary condition
Erbaş et al. An analytical approach for material synthesis based on shielding effectiveness characteristics
Huang et al. Recognition of the major scattering sources on complex targets based on the high frequency radar cross section integrated calculation technique

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170531