CN105891336A - Scaling model machine of large noise isolation device and noise isolation test method of scaling model machine - Google Patents
Scaling model machine of large noise isolation device and noise isolation test method of scaling model machine Download PDFInfo
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- CN105891336A CN105891336A CN201610191008.XA CN201610191008A CN105891336A CN 105891336 A CN105891336 A CN 105891336A CN 201610191008 A CN201610191008 A CN 201610191008A CN 105891336 A CN105891336 A CN 105891336A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/11—Analysing solids by measuring attenuation of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/015—Attenuation, scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/103—Number of transducers one emitter, two or more receivers
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Abstract
The invention discloses a scaling model machine of a large noise isolation device and a noise isolation test method of the scaling model machine. The scaling model machine comprises an external layer space structure formed by four external wall plates, an external top plate and a bottom plate in an enclosing mode and an internal layer space structure formed by four internal wall plates, an internal top plate and the bottom plate in an enclosing mode, gaps are formed between each external wall plate and the corresponding internal wall plate and between the external top plate and the internal top plate respectively, air layers are formed, and the corresponding positions of the external wall plates and the internal wall plates are provided with cable holes, pipeline holes, air conditioner holes and noise isolation doors. The scaling model machine has the advantages of being simple in structure, easy to manufacture and low in cost; and the method for conducting noise isolation tests by means of the scaling model machine has the advantages that implementation is convenient, the matching degree with reality is high, and test results are accurate.
Description
Technical field
The present invention relates to a kind of every device device, especially relate to a kind of large-scale contracting every device of making an uproar and than model machine and utilize contracting
The method every test of making an uproar is carried out than model machine.
Background technology
At aerospace field, the preposition equipment of conventional carrier rocket launch platform is arranged at the work away from flat pad
Between work, the very noisy produced when rocket launching will not produce impact to preposition equipment under normal circumstances.But it is movable for rocket
It is for flat pad, owing to preposition equipment is integrated in inside movable launch platform by needs, as effective every the measure of making an uproar in do not taked,
The very noisy produced during rocket launching will have a strong impact on the normal work of these preposition equipments.At present, at rocket launch
Platform field, especially in the development stage of movable launch platform, relatively big, generally every plant bulk of making an uproar due to movable launch platform
Noise fest room cannot meet large-scale every device experiment condition of making an uproar, and can not be expired completely by theory analysis and simulation calculation
Foot manufacture claim.
As can be seen here, in rocket movable launch platform field, there is presently no for its entering every effect of making an uproar every device of making an uproar
The effective ways of row test or technology.Developing how early stage verifies the feasibility every device scheme of making an uproar by effective means, with
Guarantee that final products meet the operating environment requirements of preposition equipment, and provide good working environment for staff, be this neck
Territory urgent problem, also possesses very important meaning simultaneously.
Summary of the invention
It is an object of the invention to provide a kind of large-scale contracting every device of making an uproar than model machine and every making an uproar test method, described contracting ratio
Model machine has simple in construction, advantage easy to manufacture, with low cost, and described have enforcement convenience and reality every test method of making an uproar
Matching degree is high, result of the test feature accurately.
For solving in prior art in the rocket movable launch platform development stage, also not for its every device of making an uproar every making an uproar
Effect carries out effective means or the technology tested, and can not fully meet manufacture claim by theory analysis and simulation calculation
Problem, a kind of large-scale contracting every device of making an uproar that the present invention provides than model machine, including four Side fascias, roof sheet, in four
Wallboard, an inside ceiling panel and a base plate；The upper end of four Side fascias is fixing even by the first attachment means and roof sheet respectively
Connecing, the lower end of four Side fascias is connected by the second attachment means and base plate are fixing respectively, and makes four Side fascias and roof sheet
Outer space structure is surrounded with base plate；The upper end of four linings is connected by the 3rd attachment means and inside ceiling panel are fixing respectively,
The lower end of four linings is connected by the 4th attachment means and base plate are fixing respectively, and makes four linings and inside ceiling panel and the end
Plate surrounds inner space structure；It is equipped with gap between Side fascia and lining and between roof sheet and inside ceiling panel and forms sky
Gas-bearing formation；The position that Side fascia is corresponding with lining offers cable aperture, pipeline hole, air louver and soundproof door.
Further, a kind of large-scale contracting every device of making an uproar of the present invention is than model machine, wherein, and described four Side fascias and roof sheet
Hold one layer of sound-absorbing material being constituted and make its gross thickness by double layer of metal plate holder is 65mm；Described four linings and inside ceiling panel are equal
Being constituted by three-ply metal clamping two-layer sound-absorbing material and made its gross thickness is 75mm；Described base plate is clamped two by three-ply metal
Layer sound-absorbing material constitutes and make its gross thickness is 130mm；Between described Side fascia and lining and roof sheet and inside ceiling panel it
Between air layer thickness be 80mm；Described inner space structure is 1577 × 1330 × 2024mm.
Further, a kind of large-scale contracting every device of making an uproar of the present invention is than model machine, and wherein, described first attachment means includes
One I-steel, roof sheet angle steel and the first Side fascia angle steel, a limb plate of roof sheet angle steel is fixed with the metallic plate in roof sheet
Connect, another limb plate of roof sheet angle steel and the fixing connection of the upper flange of the first I-steel；One limb plate of the first Side fascia angle steel
Fixing with the metallic plate in Side fascia and be connected, another limb plate of the first Side fascia angle steel and the lower wing plate of the first I-steel are fixing even
Connect；The belly of the first I-steel, roof sheet angle steel and the first Side fascia angle steel is all filled out and is provided with sound-absorbing material.
Further, a kind of large-scale contracting every device of making an uproar of the present invention is than model machine, and wherein, described second attachment means includes
One limb plate of one base plate angle steel and the second Side fascia angle steel, the first base plate angle steel and the second Side fascia angle steel respectively with in Side fascia
Metallic plate fixing connect, and make the second Side fascia angle steel be positioned at the upside of the first base plate angle steel, another of the first base plate angle steel
Limb plate is fixing with the upside metallic plate of base plate to be connected；The belly of the first base plate angle steel is filled out and is provided with sound-absorbing material.
Further, a kind of large-scale contracting every device of making an uproar of the present invention is than model machine, and wherein, described 3rd attachment means includes
Two I-steel, inside ceiling panel angle steel and the first lining angle steel, a limb plate of inside ceiling panel angle steel is fixed with the metallic plate in inside ceiling panel
Connect, another limb plate of inside ceiling panel angle steel and the fixing connection of the upper flange of the second I-steel；One limb plate of the first lining angle steel
Fixing with the metallic plate in lining and be connected, another limb plate of the first lining angle steel and the lower wing plate of the second I-steel are fixing even
Connect；The belly of the second I-steel, inside ceiling panel angle steel and the first lining angle steel is all filled out and is provided with sound-absorbing material.
Further, a kind of large-scale contracting every device of making an uproar of the present invention is than model machine, and wherein, described 4th attachment means includes
Two base plate angle steel and the second lining angle steel, a limb plate of the second lining angle steel is fixing with the metallic plate in lining to be connected,
Another limb plate of second lining angle steel and the fixing connection of a limb plate of the second base plate angle steel, another limb plate of the second base plate angle steel
Fix with the upside metallic plate of base plate and be connected；The belly of the second base plate angle steel is filled out and is provided with sound-absorbing material.
Further, a kind of large-scale contracting every device of making an uproar of the present invention is than model machine, and wherein, described base plate is in surrounding and with interior
The position that wallboard is corresponding is equipped with enhancing support means, and described enhancing is propped up palm device and included lower supporting plate, upper backup pad and support
Gusset, lower supporting plate is fixing with the downside metallic plate of base plate to be connected, the upside metallic plate of the upper side of upper backup pad and base plate
Downside is fixing to be connected, and connects by bearing rib is fixing between gripper shoe and upper backup pad.
Present invention also offers a kind of utilize large-scale every device of making an uproar contracting than model machine carry out every make an uproar test method, including with
Lower step:
One, contracting is arranged in reverberation chamber than model machine, than the cable aperture of model machine, silencing pot is installed in contracting, and blocks pipeline
Hole, air louver；
Two, arrange outside survey sound point in contracting than the outside of model machine and survey sonic transducer is installed, simultaneously at contracting ratio in model machine
Portion arranges internal survey sound point and installs survey sonic transducer；
Three, in reverberation chamber, apply the excitation noise with frequency change, and continue 1 minutes；
Four, according to measurement result and the measurement result of internal survey sound point of outside survey sound point, it is thus achieved that contract than the sound insulation of model machine
Result.
Further, the present invention is a kind of utilizes the large-scale contracting every device of making an uproar to carry out every the method tested of making an uproar than model machine, wherein,
In step one, described contracting being positioned in reverberation chamber than model machine, the volume than model machine of giving is less than reverberation chamber
The 15% of spatial volume；
In step 2, described at the outside survey sound point of outside layout than model machine that contracts, its peripheral survey sound point is provided with 3,
Being respectively out1, out2 and out3,3 outside survey sound point out1, out2 and out3 are uniformly distributed along contracting than the surrounding of model machine；Institute
Stating and arrange internal survey sound point in contracting than the inside of model machine, wherein internal survey sound point is provided with 11, respectively A1, A2, A3, B1, B2,
B3, C1, C2, D, E, F, in addition to internal survey sound point F is arranged on and contracts than cable aperture, pipeline hole or the air louver position of model machine, remaining
10 internal survey sound points press three layers of layout along contracting than the height aspect of model machine, and wherein, internal survey sound point A1 and B1 is in orlop,
Internal survey sound point A2, B2, C1 and E are in intermediate layer, and internal survey sound point A3, B3, C2 and D are in the superiors；
In step 3, the described excitation noise applied in reverberation chamber with frequency change, wherein excitation noise is rocket
The simulated sound of noise during transmitting, the frequency range of simulated sound is 31.5Hz～8000Hz；
In step 4, the measurement result of described outside survey sound point, refer to 3 outside survey sound point out1, out2 and out3
The result measured respectively, the measurement result of described internal survey sound point, refer to 11 internal survey sound point A1, A2, A3, B1, B2, B3,
The result that C1, C2, D, E and F measure respectively；Described acquisition contracting, than the sound insulation result of model machine, refers to 11 internal survey sound points respectively
The sound insulation result of outside survey sound point relative to 3.
Further, the present invention is a kind of utilizes the large-scale contracting every device of making an uproar to carry out every the method tested of making an uproar than model machine, wherein,
The height of described 3 outside survey sound point out1, out2 and out3 distance metopes is all set to 2m；
Described remaining 10 internal survey sound points press three layers of layout along contracting than the height aspect of model machine, arrange also by three kinds of modes
Correspondingly carry out three times to measure, in step 4, the measurement result of described outside survey sound point, refer to 3 outside survey sound point out1,
Out2 and out3 carries out three results measured, the measurement result of described internal survey sound point respectively, refers to 11 internal survey sound points
A1, A2, A3, B1, B2, B3, C1, C2, D, E and F carry out three results measured respectively, and described acquisition contracting is tied than the sound insulation of model machine
Really, refer to that 11 internal survey sound are pressed the measurement result that three kinds of modes arrange and are respectively relative to 3 outside survey sound points sound insulation results,
Wherein three kinds of arrangements are,
The first arrangement: A1, A2 and A3 projection coincidence in the horizontal direction and coincidence point are positioned at from left front to the right side
After diagonal on, and to make the distance of its coincidence point distance front side wall be 10cm, and A1, A2 and A3 the most uniformly divide
Cloth, A1 is 30cm apart from the distance that distance is 30cm, A3 distance roof of diapire；B1, B2 and B3 projection in the horizontal direction
Overlapping, coincidence point is positioned at from left front diagonal to the right side and in an intermediate position, and B1, B2 and B3 are the most uniform
Distribution, B1 is 30cm apart from the distance that distance is 30cm, B3 distance roof of diapire；C1 and C2 projection weight in the horizontal direction
Close and the distance of coincidence point distance right side wall is that the coincidence point that 10cm, C1 and C2 project in the horizontal direction exists with B1, B2 and B3
In horizontal direction, the coincidence point of projection is in same horizontal line at left and right directions, and C1 is same with B2 high in vertical direction, and C2 exists
With B3 with high in vertical direction；D is positioned at from left front diagonal to the right side and the distance of distance rear wall in the horizontal direction
Same with B3 high in vertical direction for 10cm, D；E distance rear wall in the horizontal direction has the distance of left side wall to be 40cm, E
It is in the upside of A2 and B2 in vertical direction；F is arranged on cable aperture, pipeline hole or the air louver position contracted than model machine；
Second arrangement: A1, A2 and A3 projection coincidence in the horizontal direction and coincidence point are positioned at from left front to behind the right side
Diagonal on, and to make the distance of its coincidence point distance front side wall be 40cm, and A1, A2 and A3 are uniformly distributed in vertical direction,
A1 is 65cm apart from the distance that distance is 68cm, A3 distance roof of diapire；B1, B2 and B3 projection weight in the horizontal direction
Closing, coincidence point is positioned at from left front diagonal to the right side and in an intermediate position, and B1, B2 and B3 the most uniformly divide
Cloth, B1 is 65cm apart from the distance that distance is 68cm, B3 distance roof of diapire；C1 and C2 projection in the horizontal direction overlaps
And the distance of coincidence point distance right side wall be the coincidence point that projects in the horizontal direction of 40cm, C1 and C2 with B1, B2 and B3 at water
Square coincidence point upwards projected is in same horizontal line at left and right directions, C1 in vertical direction with B2 with high, C2 is hanging down
Nogata is upwards same with B3 high；D is positioned in the horizontal direction from left front diagonal to the right side and the distance of distance rear wall is
40cm, D are same with B3 high in vertical direction；E distance rear wall in the horizontal direction has the distance of left side wall to be 40cm, E to exist
The upside of A2 and B2 it is in vertical direction；F is arranged on cable aperture, pipeline hole or the air louver position contracted than model machine；
The third arrangement: A1, A2 and A3 projection coincidence in the horizontal direction and coincidence point are positioned at from left front to the right side
After diagonal on, and to make the distance of its coincidence point distance front side wall be 40cm, and A1, A2 and A3 the most uniformly divide
Cloth, A1 is 65cm apart from the distance that distance is 68cm, A3 distance roof of diapire；B1, B2 and B3 projection in the horizontal direction
Overlap and its coincidence point is in same vertical line in the longitudinal direction with A1, A2 and A3 coincidence point in the horizontal direction, and
Being in the centre position of fore-and-aft direction, B1 is same with A1 high in vertical direction, and B2 is same with A2 high in vertical direction, and B3 is vertically
With A3 with high on direction；C1 and C2 projection in the horizontal direction overlaps and the distance of coincidence point distance right side wall is 40cm, C1
The coincidence point that the coincidence point projected in the horizontal direction with C2 and A1, A2 and A3 project in the horizontal direction is at left and right directions
Same horizontal line, C1 is same with A2 high in vertical direction, and C2 is same with A3 high in vertical direction；D is positioned in the horizontal direction
From left front diagonal to the right side and the distance of distance rear wall be 40cm, D in vertical direction with A3 with high；E is in level
On direction, distance rear wall has the distance of left side wall to be 40cm, E to be in the upside of A2 and B2 in vertical direction；F is arranged on
Contract than cable aperture, pipeline hole or the air louver position of model machine.
A kind of large-scale contracting every device of making an uproar of the present invention than model machine and every make an uproar test method compared with prior art, have with
Lower advantage: (1) present invention is by formulating contracting ratio model machine scheme, and makes contracting include by four Side fascias and roof sheet and the end than model machine
The outer space structure that plate surrounds, and the inner space structure surrounded by four linings and inside ceiling panel and base plate, and outside making
It is equipped with gap between wallboard and lining and between roof sheet and inside ceiling panel and forms air layer, and existing according to practical situation
Cable aperture, pipeline hole, air louver and soundproof door have been offered in the position that Side fascia is corresponding with lining.The most just constitute a kind of knot
Structure is simple, preparation is convenient, with low cost and with the actual large-scale contracting corresponding every device of making an uproar than model machine, by contracting than model machine
Every test of making an uproar, can show that it, every effect of making an uproar, can be that the large-scale development every device of making an uproar provides reliable foundation, and ensure final producing
Product meet use requirement every performance of making an uproar.For accuracy and the validity of guarantee test result, the contracting of the present invention is than model machine basis
The actual large-scale function every device of making an uproar and composition, be provided with and formed three layers of compound sound insulating structure, root by outer layer, air layer and internal layer
Border inspection shows factually, and contracting has reached 50dB than the oise insulation factor of model machine, completes to meet requirement, and matches with theory calculating.(2)
The present invention is by arranging the large-scale contracting every device of making an uproar than model machine, and by analyzing spectral characteristics of noise during rocket launching, mixed
Ring lab simulation and apply the noise excitation with frequency change, simultaneously by contracting reasonable Arrangement noise measuring point more internal than model machine, making
Its position covers real work operating mode, thus ensure that the validity of measurement result.
Illustrated embodiment large-scale contracting every make an uproar device a kind of to the present invention is than model machine and every test of making an uproar below in conjunction with the accompanying drawings
Method is described in further detail:
Accompanying drawing explanation
Fig. 1 is a kind of large-scale contracting than the structural representation of model machine every device of making an uproar of the present invention；
Fig. 2 is the close-up schematic view of location A in Fig. 1；
Fig. 3 is the close-up schematic view of B location in Fig. 1；
Fig. 4 is to be positioned over contracting in reverberation chamber than model machine to carry out showing every the state of test of making an uproar and the layout of outside survey sound point
It is intended to；
Fig. 5 is to contract than the top view of the internal survey sound point of the first layout in model machine；
Fig. 6 is to contract than the plan view of the internal survey sound point of the first layout in model machine；
Fig. 7 is the top view contracting and arranging internal survey sound point than the second in model machine；
Fig. 8 is the plan view contracting and arranging internal survey sound point than the second in model machine；
Fig. 9 is to contract than the top view of the internal survey sound point of the third layout in model machine；
Figure 10 is to contract than the plan view of the internal survey sound point of the third layout in model machine.
Detailed description of the invention
Firstly the need of explanation, the invention provides a kind of large-scale contracting every device of making an uproar than model machine, and provide one
This contracting is utilized to carry out the method every test of making an uproar than model machine.
A kind of large-scale ratio detailed description of the invention of model machine that contracts every device of making an uproar of the present invention as shown in Figure 1 to Figure 3, including four
1, roof sheet of Side fascia, 3, inside ceiling panel 4 of 2, four linings and a base plate 5；The upper end of four Side fascias 1 is respectively
Being connected by the first attachment means 6 is fixing with roof sheet 2, the lower end of four Side fascias 1 is respectively by second attachment means 7 and the end
Plate 5 is fixing to be connected, and makes four Side fascias 1 surround outer space structure with roof sheet 2 and base plate 5；The upper end of four linings 3
Being connected by the 3rd attachment means 8 is fixing with inside ceiling panel 4 respectively, the lower end of four linings 3 is respectively by the 4th attachment means 9
Fix with base plate 5 and be connected, and make four linings 3 surround inner space structure with inside ceiling panel 4 and base plate 5；Side fascia 1 and interior wall
It is equipped with gap between plate 3 and between roof sheet 2 and inside ceiling panel 4 and forms air layer；Side fascia 1 and lining 3 correspondence
Position offers cable aperture, pipeline hole, air louver and soundproof door.Arranged by above structure just constitute a kind of simple in construction,
Prepare convenient, with low cost and with the actual large-scale contracting corresponding every device of making an uproar than model machine, by contracting than model machine every making an uproar
Test, can show that it, every effect of making an uproar, can be that the large-scale development every device of making an uproar provides reliable foundation, and ensure final products
Use requirement is met every performance of making an uproar.For accuracy and the validity of guarantee test result, the contracting of the present invention than model machine according to reality
The large-scale function every device of making an uproar and composition, be provided with the three layers of compound sound insulating structure being made up of outer layer, air layer and internal layer, according to
Practice examining shows, contracting reaches 50dB than the oise insulation factor of model machine, completes to meet requirement, and matches with theory calculating.
As prioritization scheme, this detailed description of the invention allows four Side fascias 1 and roof sheet 2 be held one by double layer of metal plate holder
Layer sound-absorbing material constitutes and make its gross thickness is 65mm；Four linings 3 and inside ceiling panel 4 is allowed to be clamped two-layer by three-ply metal
Sound-absorbing material constitutes and makes its gross thickness is 75mm；Base plate 5 is allowed to be constituted by three-ply metal clamping two-layer sound-absorbing material and to be made it
Gross thickness is 130mm；And make the air layer thickness between Side fascia 1 and lining 3 and between roof sheet 2 and inside ceiling panel 4 be
80mm；Making inner space structure is 1577 × 1330 × 2024mm.The present invention passes through appropriate design appearance and size and inner space,
Reaching the ratio effect that contracts, contract and considering in the case of reverberation field space than the overall dimensions of model machine, its volume should be not more than reverberation chamber
The 15% of space, and its inner space should meet install 1 1800x1000x600 rack requirement.Arranged by said structure
Can ensure that contracting is more large-scale every making an uproar device matching degree than model machine and reality, make experimental result the most authentic and valid.
As detailed description of the invention, in the present invention, the first attachment means 6 specifically includes the first I-steel 61, roof sheet angle steel
62 and the first Side fascia angle steel 63, a limb plate of roof sheet angle steel 62 is fixing with the metallic plate in roof sheet 2 to be connected, roof sheet angle
Another limb plate of steel 62 and the fixing connection of the upper flange of the first I-steel 61；One limb plate and Side fascia of the first Side fascia angle steel 63
Metallic plate in 1 is fixing to be connected, another limb plate of the first Side fascia angle steel 63 and the fixing connection of the lower wing plate of the first I-steel 61；
The belly of the first I-steel 61, roof sheet angle steel 62 and the first Side fascia angle steel 63 is all filled out and is provided with sound-absorbing material.
Second attachment means 7 specifically includes the first base plate angle steel 71 and the second Side fascia angle steel 72, the first base plate angle steel 71
Fix with the metallic plate in Side fascia 1 respectively with a limb plate of the second Side fascia angle steel 71 and be connected, and make the second Side fascia angle steel
72 upsides being positioned at the first base plate angle steel 71, another limb plate of the first base plate angle steel 71 is fixing with the upside metallic plate of base plate 5 even
Connect；The belly of the first base plate angle steel 71 is filled out and is provided with sound-absorbing material.
3rd attachment means 8 specifically includes the second I-steel 81, inside ceiling panel angle steel 82 and the first lining angle steel 83, interior top
One limb plate of plate angle steel 82 is fixing with the metallic plate in inside ceiling panel 4 to be connected, another limb plate of inside ceiling panel angle steel 82 and the second I-shaped
The upper flange of steel 81 is fixing to be connected；One limb plate of the first lining angle steel 83 is fixing with the metallic plate in lining 3 to be connected, and first
Another limb plate of lining angle steel 83 and the fixing connection of the lower wing plate of the second I-steel 81；Second I-steel 81, inside ceiling panel angle steel
62 and first the belly of lining angle steel 83 all fill out and be provided with sound-absorbing material.
4th attachment means 9 includes the second base plate angle steel 91 and the second lining angle steel 92, the second lining angle steel 92
One limb plate is fixing with the metallic plate in lining 3 to be connected, another limb plate of the second lining angle steel 92 and the second base plate angle steel 91
A limb plate fixing connect, another limb plate of the second base plate angle steel 91 is fixed with the upside metallic plate of base plate 5 and is connected；Second base plate
The belly of angle steel 91 is filled out and is provided with sound-absorbing material.
The present invention is by arranging the first attachment means the 6, second attachment means the 7, the 3rd attachment means 8 and the 4th attachment means
9 while model machine intensity at enhancing contracting ratio, simplify technique, improve the convenient and swift property of preparation, and practicality is stronger.
This detailed description of the invention, makes base plate 5 be provided with in surrounding and the position corresponding with lining 3 strengthening support dress
Put, strengthen a palm device and specifically include lower supporting plate 51, upper backup pad 52 and bearing rib 53, lower supporting plate 51 and base plate 5
Downside metallic plate is fixing to be connected, and the upper side of upper backup pad 52 is fixing with the downside of the upside metallic plate of base plate 5 to be connected, and supports
Connect by bearing rib 53 is fixing between plate 51 and upper backup pad 52.By arrange enhancing support means improve base plate 5
Support strength, enhance practicality.
As shown in Fig. 4 to Figure 10, a kind of of present invention offer utilizes the large-scale contracting every device of making an uproar to carry out every examination of making an uproar than model machine
The method tested, comprises the following steps:
One, contracting is arranged in reverberation chamber than model machine, than the cable aperture of model machine, silencing pot is installed in contracting, and blocks pipeline
Hole, air louver；
Two, arrange outside survey sound point in contracting than the outside of model machine and survey sonic transducer is installed, simultaneously at contracting ratio in model machine
Portion arranges internal survey sound point and installs survey sonic transducer；
Three, in reverberation chamber, apply the excitation noise with frequency change, and continue 1 minutes；
Four, according to measurement result and the measurement result of internal survey sound point of outside survey sound point, it is thus achieved that contract than the sound insulation of model machine
Result.
In above-mentioned steps one, described contracting being positioned in reverberation chamber than model machine, the volume than model machine of giving is less than reverberation
The 15% of the spatial volume of room.
In above-mentioned steps two, described at the outside survey sound point of outside layout than model machine that contracts, its peripheral survey sound point is provided with 3
Individual, respectively out1, out2 and out3,3 outside survey sound point out1, out2 and out3 along contracting than model machine surrounding uniformly minute
Cloth；Described arranging internal survey sound point in contracting than the inside of model machine, wherein internal survey sound point is provided with 11, respectively A1, A2, A3,
B1, B2, B3, C1, C2, D, E, F, except internal survey sound point F is arranged on cable aperture, pipeline hole or the air louver position contracted than model machine
Outward, remaining 10 internal survey sound points press three layers of layout along contracting than the height aspect of model machine, and wherein, internal survey sound point A1 and B1 is in
Orlop, internal survey sound point A2, B2, C1 and E be in intermediate layer, and internal survey sound point A3, B3, C2 and D are in the superiors.
In above-mentioned steps three, the described excitation noise applied in reverberation chamber with frequency change, wherein excitation noise is
Noise simulation sound during rocket launching, the frequency range of simulated sound is 31.5Hz～8000Hz.
In above-mentioned steps four, the measurement result of described outside survey sound point, refer to 3 outside survey sound point out1, out2 and
The result that out3 measures respectively, the measurement result of described internal survey sound point, refer to 11 internal survey sound point A1, A2, A3, B1, B2,
The result that B3, C1, C2, D, E and F measure respectively；Described acquisition contracting, than the sound insulation result of model machine, refers to 11 internal survey sound points minute
The not sound insulation result of outside survey sound point relative to 3.
The height of above-mentioned 3 outside survey sound point out1, out2 and out3 distance metopes is all set to 2m.
Above-mentioned remaining 10 internal survey sound points press three layers of layout along contracting than the height aspect of model machine, arrange also by three kinds of modes
Correspondingly carry out three times to measure, in step 4, the measurement result of described outside survey sound point, refer to 3 outside survey sound point out1,
Out2 and out3 carries out three results measured, the measurement result of described internal survey sound point respectively, refers to 11 internal survey sound points
A1, A2, A3, B1, B2, B3, C1, C2, D, E and F carry out three results measured respectively, and described acquisition contracting is tied than the sound insulation of model machine
Really, refer to that 11 internal survey sound are pressed the measurement result that three kinds of modes arrange and are respectively relative to 3 outside survey sound points sound insulation results.
Wherein three kinds of arrangements are,
The first arrangement: A1, A2 and A3 projection coincidence in the horizontal direction and coincidence point are positioned at from left front to the right side
After diagonal on, and to make the distance of its coincidence point distance front side wall be 10cm, and A1, A2 and A3 the most uniformly divide
Cloth, A1 is 30cm apart from the distance that distance is 30cm, A3 distance roof of diapire；B1, B2 and B3 projection in the horizontal direction
Overlapping, coincidence point is positioned at from left front diagonal to the right side and in an intermediate position, and B1, B2 and B3 are the most uniform
Distribution, B1 is 30cm apart from the distance that distance is 30cm, B3 distance roof of diapire；C1 and C2 projection weight in the horizontal direction
Close and the distance of coincidence point distance right side wall is that the coincidence point that 10cm, C1 and C2 project in the horizontal direction exists with B1, B2 and B3
In horizontal direction, the coincidence point of projection is in same horizontal line at left and right directions, and C1 is same with B2 high in vertical direction, and C2 exists
With B3 with high in vertical direction；D is positioned at from left front diagonal to the right side and the distance of distance rear wall in the horizontal direction
Same with B3 high in vertical direction for 10cm, D；E distance rear wall in the horizontal direction has the distance of left side wall to be 40cm, E
It is in the upside of A2 and B2 in vertical direction；F is arranged on cable aperture, pipeline hole or the air louver position contracted than model machine.
Second arrangement: A1, A2 and A3 projection coincidence in the horizontal direction and coincidence point are positioned at from left front to behind the right side
Diagonal on, and to make the distance of its coincidence point distance front side wall be 40cm, and A1, A2 and A3 are uniformly distributed in vertical direction,
A1 is 65cm apart from the distance that distance is 68cm, A3 distance roof of diapire；B1, B2 and B3 projection weight in the horizontal direction
Closing, coincidence point is positioned at from left front diagonal to the right side and in an intermediate position, and B1, B2 and B3 the most uniformly divide
Cloth, B1 is 65cm apart from the distance that distance is 68cm, B3 distance roof of diapire；C1 and C2 projection in the horizontal direction overlaps
And the distance of coincidence point distance right side wall be the coincidence point that projects in the horizontal direction of 40cm, C1 and C2 with B1, B2 and B3 at water
Square coincidence point upwards projected is in same horizontal line at left and right directions, C1 in vertical direction with B2 with high, C2 is hanging down
Nogata is upwards same with B3 high；D is positioned in the horizontal direction from left front diagonal to the right side and the distance of distance rear wall is
40cm, D are same with B3 high in vertical direction；E distance rear wall in the horizontal direction has the distance of left side wall to be 40cm, E to exist
The upside of A2 and B2 it is in vertical direction；F is arranged on cable aperture, pipeline hole or the air louver position contracted than model machine.
The third arrangement: A1, A2 and A3 projection coincidence in the horizontal direction and coincidence point are positioned at from left front to the right side
After diagonal on, and to make the distance of its coincidence point distance front side wall be 40cm, and A1, A2 and A3 the most uniformly divide
Cloth, A1 is 65cm apart from the distance that distance is 68cm, A3 distance roof of diapire；B1, B2 and B3 projection in the horizontal direction
Overlap and its coincidence point is in same vertical line in the longitudinal direction with A1, A2 and A3 coincidence point in the horizontal direction, and
Being in the centre position of fore-and-aft direction, B1 is same with A1 high in vertical direction, and B2 is same with A2 high in vertical direction, and B3 is vertically
With A3 with high on direction；C1 and C2 projection in the horizontal direction overlaps and the distance of coincidence point distance right side wall is 40cm, C1
The coincidence point that the coincidence point projected in the horizontal direction with C2 and A1, A2 and A3 project in the horizontal direction is at left and right directions
Same horizontal line, C1 is same with A2 high in vertical direction, and C2 is same with A3 high in vertical direction；D is positioned in the horizontal direction
From left front diagonal to the right side and the distance of distance rear wall be 40cm, D in vertical direction with A3 with high；E is in level
On direction, distance rear wall has the distance of left side wall to be 40cm, E to be in the upside of A2 and B2 in vertical direction；F is arranged on
Contract than cable aperture, pipeline hole or the air louver position of model machine.
The present invention, by contracting than model machine inside reasonable Arrangement noise measuring point with upper type, makes internal survey sound point position cover
Real work operating mode, it is ensured that the validity of measurement result.
Above example is only the description carrying out the preferred embodiment of the present invention, not the present invention is claimed model
Enclosing the restriction carried out, on the premise of without departing from design principle of the present invention and spirit, this area engineers and technicians are according to this
The various forms of deformation that bright technical scheme is made, all should fall in protection domain determined by claims of the present invention.
Claims (10)
1. model machine is compared in the one kind large-scale contracting every device of making an uproar, it is characterised in that: include four Side fascias (1), roof sheet (2),
Four linings (3), an inside ceiling panel (4) and a base plate (5)；The upper end of four Side fascias (1) is respectively by the first connection
Device (6) is fixing with roof sheet (2) to be connected, and the lower end of four Side fascias (1) is respectively by the second attachment means (7) and base plate
(5) fixing connection, and make four Side fascias (1) surround outer space structure with roof sheet (2) and base plate (5)；Four linings
(3) upper end is connected by the 3rd attachment means (8) and inside ceiling panel (4) are fixing respectively, and the lower end of four linings (3) leads to respectively
Cross that the 4th attachment means (9) and base plate (5) are fixing to be connected, and make four linings (3) surround with inside ceiling panel (4) and base plate (5)
Inner space structure；It is equipped with gap also between Side fascia (1) and lining (3) and between roof sheet (2) and inside ceiling panel (4)
Form air layer；The position of Side fascia (1) and lining (3) correspondence offers cable aperture, pipeline hole, air louver and soundproof door.
2. compare model machine according to a kind of large-scale contracting every device of making an uproar described in claim 1, it is characterised in that: described four Side fascias
(1) and roof sheet (2) hold one layer of sound-absorbing material to be constituted and make its gross thickness by double layer of metal plate holder be 65mm；In described four
Wallboard (3) and inside ceiling panel (4) are constituted by three-ply metal clamping two-layer sound-absorbing material and make its gross thickness is 75mm；The described end
Plate (5) is constituted by three-ply metal clamping two-layer sound-absorbing material and made its gross thickness is 130mm；Described Side fascia (1) and interior wall
Air layer thickness between plate (3) and between roof sheet (2) and inside ceiling panel (4) is 80mm；Described inner space structure is
1577×1330×2024mm。
3. compare model machine according to a kind of large-scale contracting every device of making an uproar described in claim 2, it is characterised in that: the first attachment means
(6) the first I-steel (61), roof sheet angle steel (62) and the first Side fascia angle steel (63), a limb of roof sheet angle steel (62) are included
Plate and the metallic plate in roof sheet (2) are fixing to be connected, another limb plate of roof sheet angle steel (62) and the first I-steel (61) upper
Wing plate is fixing to be connected；One limb plate of the first Side fascia angle steel (63) is fixing with the metallic plate in Side fascia (1) to be connected, the first exterior wall
Another limb plate of plate angle steel (63) and the fixing connection of the lower wing plate of the first I-steel (61)；First I-steel (61), roof sheet angle
The belly of steel (62) and the first Side fascia angle steel (63) is all filled out and is provided with sound-absorbing material.
4. compare model machine according to a kind of large-scale contracting every device of making an uproar described in claim 2, it is characterised in that: the second attachment means
(7) the first base plate angle steel (71) and the second Side fascia angle steel (72), the first base plate angle steel (71) and the second Side fascia angle steel are included
(71) a limb plate is fixing with the metallic plate in Side fascia (1) respectively to be connected, and makes the second Side fascia angle steel (72) be positioned at first
The upside of base plate angle steel (71), another limb plate of the first base plate angle steel (71) is fixing with the upside metallic plate of base plate (5) to be connected；The
The belly of one base plate angle steel (71) is filled out and is provided with sound-absorbing material.
5. compare model machine according to a kind of large-scale contracting every device of making an uproar described in claim 2, it is characterised in that: the 3rd attachment means
(8) the second I-steel (81), inside ceiling panel angle steel (82) and the first lining angle steel (83), a limb of inside ceiling panel angle steel (82) are included
Plate and the metallic plate in inside ceiling panel (4) are fixing to be connected, another limb plate of inside ceiling panel angle steel (82) and the second I-steel (81) upper
Wing plate is fixing to be connected；One limb plate of the first lining angle steel (83) is fixing with the metallic plate in lining (3) to be connected, the first interior wall
Another limb plate of plate angle steel (83) and the fixing connection of the lower wing plate of the second I-steel (81)；Second I-steel (81), inside ceiling panel angle
The belly of steel (62) and the first lining angle steel (83) is all filled out and is provided with sound-absorbing material.
6. compare model machine according to a kind of large-scale contracting every device of making an uproar described in claim 2, it is characterised in that: the 4th attachment means
(9) the second base plate angle steel (91) and the second lining angle steel (92), limb plate and an interior wall of the second lining angle steel (92) are included
Metallic plate in plate (3) is fixing to be connected, another limb plate of the second lining angle steel (92) and a limb of the second base plate angle steel (91)
Plate is fixing to be connected, and another limb plate of the second base plate angle steel (91) is fixing with the upside metallic plate of base plate (5) to be connected；Second base corner
The belly of steel (91) is filled out and is provided with sound-absorbing material.
7. compare model machine according to a kind of large-scale contracting every device of making an uproar described in any one of claim 1-6, it is characterised in that: the described end
Plate (5) is equipped with enhancing support means in surrounding and the position corresponding with lining (3), under described enhancing is propped up the palm device included
Gripper shoe (51), upper backup pad (52) and bearing rib (53), lower supporting plate (51) is fixing with the downside metallic plate of base plate (5) to be connected
Connecing, the downside of the upper side of upper backup pad (52) and the upside metallic plate of base plate (5) is fixing to be connected, gripper shoe (51) and upper
Connect by bearing rib (53) is fixing between fagging (52).
8. utilizing the large-scale contracting every device of making an uproar described in claim 1 to carry out the method every test of making an uproar than model machine, its feature exists
In, comprise the following steps:
One, contracting is arranged in reverberation chamber than model machine, than the cable aperture of model machine, silencing pot is installed in contracting, and blocks pipeline hole, sky
Adjust hole；
Two, arrange outside survey sound point in contracting than the outside of model machine and survey sonic transducer is installed, simultaneously at the inside cloth than model machine that contracts
Put internal survey sound point and survey sonic transducer is installed；
Three, in reverberation chamber, apply the excitation noise with frequency change, and continue 1 minutes；
Four, according to measurement result and the measurement result of internal survey sound point of outside survey sound point, it is thus achieved that contract than the sound insulation result of model machine.
9. utilize the large-scale contracting every device of making an uproar to carry out the method every test of making an uproar than model machine according to a kind of described in claim 8, its
It is characterised by,
In step one, described contracting being positioned in reverberation chamber than model machine, the volume than model machine of giving is less than the space of reverberation chamber
The 15% of volume；
In step 2, described at the outside survey sound point of outside layout than model machine that contracts, its peripheral survey sound point is provided with 3, respectively
For out1, out2 and out3,3 outside survey sound point out1, out2 and out3 are uniformly distributed along contracting than the surrounding of model machine；Described
Internal survey sound point is arranged in the inside of contracting ratio model machine, and wherein internal survey sound point is provided with 11, respectively A1, A2, A3, B1, B2, B3,
C1, C2, D, E, F, in addition to internal survey sound point F is arranged on and contracts than cable aperture, pipeline hole or the air louver position of model machine, remaining 10
Internal survey sound point presses three layers of layout along contracting than the short transverse of model machine, and wherein, internal survey sound point A1 and B1 is in orlop, internal
Survey sound point A2, B2, C1 and E are in intermediate layer, and internal survey sound point A3, B3, C2 and D are in the superiors；
In step 3, the described excitation noise applied in reverberation chamber with frequency change, wherein excitation noise is rocket launching
Time noise simulated sound, the frequency range of simulated sound is 31.5Hz～8000Hz；
In step 4, the measurement result of described outside survey sound point, refer to 3 outside survey sound point out1, out2 and out3 respectively
The result measured, the measurement result of described internal survey sound point, refer to 11 internal survey sound point A1, A2, A3, B1, B2, B3, C1,
The result that C2, D, E and F measure respectively；Described acquisition contracting, than the sound insulation result of model machine, refers to 11 internal survey sound points the most relatively
Sound insulation result in 3 outside survey sound points.
10. utilize the large-scale contracting every device of making an uproar to carry out the method every test of making an uproar than model machine according to a kind of described in claim 9, its
It is characterised by,
The height of described 3 outside survey sound point out1, out2 and out3 distance metopes is all set to 2m；
Described remaining 10 internal survey sound points along contracting than the height aspect of model machine by three layers of layout, arrange by three kinds of modes and accordingly
Ground carries out three times and measures, in step 4, and the measurement result of described outside survey sound point, refer to 3 outside survey sound point out1, out2
Carry out the result measured, the measurement result of described internal survey sound point respectively three times with out3, refer to 11 internal survey sound point A1,
A2, A3, B1, B2, B3, C1, C2, D, E and F carry out three results measured respectively, and described acquisition is contracted than the sound insulation result of model machine,
Refer to that 11 internal survey sound are pressed the measurement result that three kinds of modes arrange and are respectively relative to 3 outside survey sound points sound insulation results,
Wherein three kinds of arrangements are,
The first arrangement: A1, A2 and A3 projection in the horizontal direction overlaps and coincidence point is positioned at from left front to behind the right side
On diagonal, and to make the distance of its coincidence point distance front side wall be 10cm, and A1, A2 and A3 are uniformly distributed in vertical direction, A1
Distance diapire distance be 30cm, A3 distance roof distance be 30cm；B1, B2 and B3 projection in the horizontal direction overlaps,
Coincidence point is positioned at from left front diagonal to the right side and in an intermediate position, and B1, B2 and B3 are uniformly distributed in vertical direction,
B1 is 30cm apart from the distance that distance is 30cm, B3 distance roof of diapire；C1 and C2 projection in the horizontal direction overlap and
The distance of coincidence point distance right side wall be the coincidence point that projects in the horizontal direction of 10cm, C1 and C2 with B1, B2 and B3 in level
On direction, the coincidence point of projection is in same horizontal line at left and right directions, and C1 is same with B2 high in vertical direction, and C2 is vertically
With B3 with high on direction；D is positioned in the horizontal direction from left front diagonal to the right side and the distance of distance rear wall is
10cm, D are same with B3 high in vertical direction；E distance rear wall in the horizontal direction has the distance of left side wall to be 40cm, E to exist
The upside of A2 and B2 it is in vertical direction；F is arranged on cable aperture, pipeline hole or the air louver position contracted than model machine；
Second arrangement: A1, A2 and A3 projection in the horizontal direction overlaps and coincidence point is positioned at from left front right to the right side
On linea angulata, and to make the distance of its coincidence point distance front side wall be 40cm, and A1, A2 and A3 are uniformly distributed in vertical direction, A1 away from
Distance from diapire be 68cm, A3 distance roof distance be 65cm；B1, B2 and B3 projection in the horizontal direction overlaps, weight
Chalaza is positioned at from left front diagonal to the right side and in an intermediate position, and B1, B2 and B3 are uniformly distributed in vertical direction, B1
Distance diapire distance be 68cm, B3 distance roof distance be 65cm；C1 and C2 projection in the horizontal direction overlaps and weight
The distance of chalaza distance right side wall be the coincidence point that projects in the horizontal direction of 40cm, C1 and C2 with B1, B2 and B3 in level side
The coincidence point upwards projected is in same horizontal line at left and right directions, and C1 is same with B2 high in vertical direction, and C2 is at Vertical Square
Upwards with B3 with high；D is positioned in the horizontal direction from left front diagonal to the right side and the distance of distance rear wall is 40cm,
D is same with B3 high in vertical direction；E distance rear wall in the horizontal direction has the distance of left side wall to be 40cm, and E is at Vertical Square
Upwards it is in the upside of A2 and B2；F is arranged on cable aperture, pipeline hole or the air louver position contracted than model machine；
The third arrangement: A1, A2 and A3 projection in the horizontal direction overlaps and coincidence point is positioned at from left front to behind the right side
On diagonal, and to make the distance of its coincidence point distance front side wall be 40cm, and A1, A2 and A3 are uniformly distributed in vertical direction, A1
Distance diapire distance be 68cm, A3 distance roof distance be 65cm；B1, B2 and B3 projection in the horizontal direction overlap and
The coincidence point that its coincidence point and A1, A2 and A3 project in the horizontal direction is in same vertical line in the longitudinal direction, and locates
In the centre position of fore-and-aft direction, B1 is same with A1 high in vertical direction, and B2 is same with A2 high in vertical direction, and B3 is at Vertical Square
Upwards with A3 with high；C1 and C2 in the horizontal direction projection overlap and coincidence point distance right side wall distance be 40cm, C1 and
The coincidence point that the coincidence point that C2 projects in the horizontal direction and A1, A2 and A3 project in the horizontal direction is in same at left and right directions
Article one, horizontal line, C1 is same with A2 high in vertical direction, and C2 is same with A3 high in vertical direction；D be positioned in the horizontal direction from
On left front diagonal to the right side and the distance of distance rear wall be 40cm, D in vertical direction with A3 with high；E is in level side
Upwards there is the distance of left side wall to be 40cm, E apart from rear wall and be in the upside of A2 and B2 in vertical direction；F is arranged on contracting
Cable aperture, pipeline hole or air louver position than model machine.
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