Experimental test platform for sound and vibration characteristics of cruise ship sample cabin

Abstract

The invention discloses a cruise ship sample cabin sound and vibration characteristic experiment test platform, and relates to the technical field of acoustic testing, the cruise ship sample cabin sound and vibration characteristic experiment test platform comprises a cabin body, a first partition plate and a second partition plate, an experiment cavity is arranged in the cabin body, the first partition plate and the second partition plate are both movably arranged in the experiment cavity, and a sound source cabin is defined by the first partition plate and the cavity wall of the experiment cavity; the second partition plate and the wall of the experiment cavity define a receiving cabin, the first partition plate and the second partition plate are spaced to form an air gap, and at least one of the first partition plate and the second partition plate can change the space size of the air gap during sliding. When the space size of the air gap needs to be adjusted, the first partition plate and / or the second partition plate can be moved relative to the cabin body, the space size of the air gap can be changed, a plurality of cruise ship experiment devices with different air gaps do not need to be configured, the use is convenient, and the experiment cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of acoustic testing, and in particular to an acoustic vibration characteristic experimental testing platform for a cruise ship sample cabin. Background Art

[0002] In the acoustic design of cruise ship cabins, the interior structure of the cruise ship cabin is usually selected with reference to the experimental test results of the cruise ship cabin provided by the supplier. Therefore, the experimental test results of the cruise ship cabin basically directly determine the selection of the interior structure of the cruise ship cabin. The experimental test of the cruise ship cabin is particularly important. At present, the research on improving the acoustic and vibration environment of cruise ship cabins is usually based on a single sample cabin experimental platform, and the coupling effect of adjacent cabins is rarely considered. In actual cruise ships, the mutual interference of sound vibrations between adjacent cabins will affect the rest experience and privacy protection of cruise passengers. Conducting research on the acoustic and vibration transmission mechanism of adjacent cabins and constructing an acoustic and vibration transmission experimental platform for coupling of adjacent cabins are of great significance for revealing the acoustic and vibration coupling mechanism between cabins and guiding the selection and design of interior decoration.

[0003] However, currently the gap between adjacent cruise ship experimental cabins is usually fixed, and the size of the gap cannot be adjusted, resulting in the need to configure multiple cruise ship experimental devices with different gaps when testing the acoustics of adjacent cruise ship cabins, which not only results in a large experimental workload but also high costs. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and to propose an experimental test platform for the acoustic and vibration characteristics of a cruise ship prototype cabin, so as to solve the problem that the gap between adjacent cruise ship experimental cabins in the prior art cannot be adjusted, resulting in the need to configure multiple cruise ship experimental devices with different gaps when testing the acoustics of adjacent cruise ship cabins, which not only causes a large experimental workload but also a high cost.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a cruise ship sample cabin acoustic vibration characteristics experimental test platform, comprising: A cabin, wherein a test chamber is provided in the cabin; and A first partition and a second partition, wherein the first partition and the second partition are both movably arranged in the experimental chamber, the first partition and the chamber wall of the experimental chamber are combined to form a sound source chamber, the second partition and the chamber wall of the experimental chamber are combined to form a receiving chamber, an air gap is formed between the first partition and the second partition, and at least one of the first partition and the second partition can change the spatial size of the air gap when sliding.

[0006] In some embodiments, the experimental testing platform also includes a positioning member, which is arranged on the cabin body, and the first partition is slidably connected to the positioning member, and the positioning member can lock or unlock the first partition; when the positioning member unlocks the first partition, the first partition can move relative to the cabin body to change the spatial size of the air gap.

[0007] In some embodiments, the positioning member includes a positioning frame and a positioning screw. The positioning frame is provided with a movable groove penetrating along the moving direction of the first partition. The positioning screw passes through the movable groove and is threadedly connected to the first partition. When rotating, the positioning screw can cooperate with the first partition to clamp the positioning frame so that the first partition and the positioning frame are relatively fixed.

[0008] In some embodiments, the number of the movable grooves and the positioning screws are both multiple, and the multiple movable grooves are located on the positioning frame and are arranged in a straight line along the sliding direction perpendicular to the first partition plate. Each positioning screw passes through the movable groove and is threadedly connected to the positioning frame.

[0009] In some embodiments, the second partition is slidably connected to the positioning member, and the second partition can move relative to the cabin to change the space size of the air gap.

[0010] In some embodiments, positioning flanges are provided on opposite sides of the positioning frame, and the two positioning flanges are respectively provided with a first movable groove and a second movable groove, the first positioning screw passes through the first movable groove and is threadedly connected to the first partition, and the second positioning screw passes through the second movable groove and is threadedly connected to the second partition.

[0011] In some embodiments, the cabin includes a top plate, a bottom plate, multiple side plates and multiple L-shaped components, adjacent side plates are connected by the L-shaped components, and the top plate, the bottom plate and the multiple side plates circumferentially enclose the experimental cavity.

[0012] In some embodiments, the cabin assembly further includes an upper deck and a lower deck, both of which are hollow and have weight-reducing holes on their sides, and the upper deck and the lower deck are respectively arranged at the top and bottom of the cabin.

[0013] In some embodiments, the cabin assembly further includes a plurality of sound insulation feet, and the plurality of sound insulation feet are respectively disposed at four top corners of the bottom of the lower deck.

[0014] In some embodiments, the sound insulation foot includes a support column, a base plate, a buffer plate and a mounting plate, the base plate is connected to the bottom of the support column, the support column has a step, the buffer plate and the mounting plate are both sleeved on the step, the buffer plate is located between the mounting plate and the base plate, and the lower deck is sleeved on the support column and connected to the top of the mounting plate.

[0015] Compared with the prior art, the sound source cabin of the cruise ship sample cabin acoustic vibration characteristics experimental test platform provided by the present invention can be used to place the sound source generator to emit a preset sound wave, and the receiving cabin can be used to place the receiver, and the receiver can be used to receive the preset sound wave transmitted from the sound source cabin and passing through the air gap, and display the received sound wave parameters, and then compare the parameters with the preset sound wave emitted by the sound source generator, so as to obtain the influence of the air gap on the sound wave, and provide theoretical guidance and experimental support for the acoustic design of the cruise ship cabin. It is also possible to set a vibration source in the sound source cabin, systematically measure and analyze the vibration response characteristics of the structural components of the sound source cabin and the receiving cabin, and explore the propagation path and law of sound vibration between adjacent cabins. Unlike most of the current studies based on a single sample cabin, the present invention fully considers the coupling effect between the adjacent sound source cabin and the receiving cabin, and is closer to the acoustic vibration environment of the actual cruise ship cabin. By conducting research on the acoustic vibration transmission path and mechanism between adjacent sound source cabins and receiving cabins, it is possible to provide important theoretical basis and technical support for revealing the interactive influence of vibration noise between the sound source cabin and the receiving cabin and formulating an optimized design scheme for vibration isolation and noise reduction. When the size of the air gap needs to be adjusted, the first partition and / or the second partition can be moved relative to the box body to change the size of the air gap. There is no need to configure multiple cruise ship experimental devices with different isolation spaces. It is easy to use and has low experimental costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an acoustic and vibration characteristics experimental testing platform for a cruise ship sample cabin provided by an embodiment of the present invention at a viewing angle; Figure 2 is a schematic structural diagram of another viewing angle of the acoustic and vibration characteristics experimental testing platform for a cruise ship sample cabin provided by an embodiment of the present invention; Figure 3 It is a disassembly schematic diagram of an acoustic and vibration characteristics experimental test platform for a cruise ship sample cabin provided by an embodiment of the present invention; Figure 4 It is a structural schematic diagram of the positioning member of the present invention; Figure 5 It is a schematic diagram of the structure of the sound insulation foot provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] In order to solve the technical problem that the gap between adjacent cruise ship experimental cabins cannot be adjusted in the prior art, resulting in the need to configure multiple cruise ship experimental devices with different gaps when testing the acoustic test of adjacent cruise ship cabins, which not only causes a large experimental workload but also high costs, the present invention provides a cruise ship prototype cabin acoustic and vibration characteristics experimental testing platform, which can achieve flexible adjustment of the air gap to facilitate sound testing of cruise ships with different isolation spaces, without the need to configure multiple cruise ship experimental cabins with different isolation spaces, and with low cost.

[0019] See also Figure 1 and Figure 2 , Figure 1 The structure diagram of the acoustic vibration characteristics experimental test platform of the cruise ship sample cabin in one embodiment of the present invention comprises a cabin 1, a first partition 21 and a second partition 22. The cabin 1 is provided with an experimental cavity 11. The first partition 21 and the second partition 22 are both located in the experimental cavity 11. The first partition 21 and the cavity wall of the experimental cavity 11 enclose a sound source cabin 111. The second partition 22 and the cavity wall of the experimental cavity 11 enclose a receiving cabin 112. The first partition 21 and the second partition 22 are separated to form an air gap 113. At least one of the first partition 21 and the second partition 22 can change the space size of the air gap 113 when sliding. When the space size of the air gap 113 is different, the sound emitted by the sound source cabin 111 passes through the air gaps 113 of different space sizes and finally reaches the receiving cabin 112. The sound quality will be different. Therefore, when it is necessary to study the effect of sound on the sound insulation of the cruise ship, it is necessary to frequently change the space size of the air gap 113.

[0020] The sound source cabin 111 in this embodiment is used to place a sound generator, which can emit sound waves of a preset wavelength and a preset frequency. The receiving cabin 112 is used to place a receiver for receiving sound waves. The experimenter can check the wavelength and frequency of the sound waves received by the receiver through the receiver, and judge the performance of the cruise ship sample cabin acoustic vibration characteristics experimental test platform by comparing the wavelength and frequency of the received sound waves with the wavelength and frequency of the sound waves emitted by the sound generator, for example, to judge the sound insulation effect of the cruise ship sample cabin acoustic vibration characteristics experimental test platform.

[0021] In one embodiment, see Figure 4The experimental test platform also includes a positioning member 3, which is movably connected to the first partition 21 and the second partition 22 and can lock or unlock the first partition 21 and the second partition 22. When the positioning member 3 unlocks the first partition 21, the first partition 21 can move back and forth to adjust the size of the air gap 113, so as to control the variables of the test experimental results, so as to facilitate rapid testing. When the positioning member 3 locks the first partition 21, the first partition 21 is locked and cannot move, and the size of the air gap 113 is fixed at this time, so as to facilitate testing in the current fixed isolation space environment. Usually, the first partition 21 can be unlocked by the positioning member 3, the first partition 21 is slid to a preset position, and then the first partition 21 is locked by the positioning member 3, so that the space of the air gap 113 is maintained at a preset size. Similarly, the second partition 22 can also move back and forth relative to the positioning member 3 to adjust the size of the air gap 113, and the positioning member 3 can also lock or unlock the second partition 22 at the same time.

[0022] In one embodiment, see Figure 4 The positioning member 3 includes a positioning frame 31, a first positioning screw 32 and a second positioning screw (not shown in the figure), and positioning flanges 311 are provided on opposite sides of the positioning frame 31. The two positioning flanges 311 are respectively provided with a first movable groove and a second movable groove (not shown in the figure), and the first positioning screw 32 passes through the first movable groove and is threadedly connected to the first partition 21, and the second positioning screw passes through the second movable groove and is threadedly connected to the second partition 22. In this embodiment, the first partition 21 and the second partition 22 can reciprocate along the length direction of their respective movable grooves, and the first positioning screw is used to fix the first partition 21, and the second positioning screw is used to fix the second partition 22, so that the space size of the air gap 113 can be maintained at the current size.

[0023] In one embodiment, see Figure 4 , the number of movable grooves and positioning screws 32 are both multiple, and the multiple movable grooves are all located on the positioning frame 31 and are arranged in a straight line along the sliding direction perpendicular to the first partition 21. Each positioning screw 32 is correspondingly penetrated by the movable groove and is threadedly connected to the positioning frame 31. In this embodiment, the positioning frame 31 is threadedly connected by multiple positioning screws 32 to simultaneously press against the first partition 21 and the second partition 22, so that a more stable fixing effect can be formed on the first partition 21 and the second partition 22. The first partition 21 and the second partition 22 of this embodiment can move within the range of the movable groove to adjust the space size of the air gap 113, so the length of the movable groove can be set according to actual needs.

[0024] In one embodiment, only one of the first partition 21 and the second partition 22 may be slidably connected to the positioning frame 31, and the other may be fixedly connected to the positioning frame 31. In this embodiment, only one of the partitions needs to be moved to change the size of the air gap 113. Compared with the previous embodiment, only one partition needs to be moved in this embodiment, and the operation is simpler.

[0025] In one embodiment, see Figure 3 The cabin 1 includes a top plate 12, a bottom plate (not shown in the figure), a plurality of side plates 14 and a plurality of L-shaped components 15. Adjacent side plates 14 are connected by L-shaped components 15. The top plate 12, the bottom plate and the plurality of side plates 14 are circumferentially enclosed to form an experimental cavity 11. In this embodiment, adjacent side plates 14 are connected by L-shaped components 15, which facilitates flexible assembly, disassembly and replacement of the side plates 14. In addition, the top plate 12 and the bottom plate, the top plate 12 and the side plates 14, and the bottom plate and the side plates 14 can all be connected by L-shaped components 15, which facilitates quick disassembly and assembly, and is conducive to studying the influence of cabin interior structures and assembly processes of different materials on the acoustic characteristics of cruise ship cabins.

[0026] In one embodiment, see Figure 2 The test platform also includes an upper deck 4 and a lower deck 5. Both the upper deck 4 and the lower deck 5 are hollow and have weight-reducing holes 41 on the sides. The upper deck 4 and the lower deck 5 are respectively arranged at the top and bottom of the cabin 1. There are multiple weight-reducing holes 41, which are mainly used to reduce the weight of the upper deck 4 and the lower deck 5. During the experiment, the upper deck 4 and the lower deck 5 are labor-saving to disassemble and assemble. In addition, the area of ​​the lower deck 5 is larger than the bottom area of ​​the cabin 1. The part of the lower deck 5 that is larger than the bottom area of ​​the cabin 1 can be used as an observation deck. The observation deck is provided with a glass fence 51 and a column 52. The top and bottom of the column 52 are respectively connected to the upper deck 4 and the lower deck 5 to support the upper deck 4 and the lower deck 5. The glass fence 51 can be used to simulate a real cruise ship. The cabin 1 is also provided with a door 16 and a window 17. There are two doors 16 and two windows 17. The two doors 16 can be used to open and enter the sound source cabin 111 or the receiving cabin 112 respectively. The two windows 17 are respectively arranged in the sound source cabin 111 or the receiving cabin 112 to simulate the real cruise ship environment.

[0027] See also Figure 3 The test platform also includes a ceiling 18 and a floor 19. The ceiling 18 has a ceiling groove and is connected to the top of the cabin 1 through the ceiling groove. The floor 19 has a ground groove and is connected to the bottom of the cabin through the ground groove. By setting the ceiling 18 and the floor 19, the sound insulation effect can be further improved.

[0028] In one embodiment, see Figure 2The test platform further includes a plurality of sound insulation feet 6, which are respectively arranged at the four top corners of the bottom of the lower deck 5. In this embodiment, the sound insulation feet 6 can not only support the acoustic vibration characteristics experimental test platform of the cruise ship sample cabin, but also soundproof the sound source cabin 111 and the receiving cabin 112, so as to prevent the sound conducted from the ground from being transmitted to the sound source cabin 111 and the receiving cabin 112 through the sound insulation feet 6, thereby affecting the sound test results.

[0029] In one embodiment, see Figure 5 The sound insulation foot 6 includes a support column 61, a base 62, a buffer plate 63 and a mounting plate 64. The base 62 is connected to the bottom of the support column 61. The base 62 is used to contact the ground to play a supporting role. The support column 61 has a step. The buffer plate 63 and the mounting plate 64 are both sleeved on the step. The buffer plate 63 is located between the mounting plate 64 and the base 62. The lower deck 5 is sleeved on the support column 61 and connected to the top of the mounting plate 64. In this embodiment, the buffer plate 63 plays a major role in sound insulation and buffering. The buffer plate 63 can be made of butyl rubber or sound insulation cotton to provide a good sound insulation effect. The buffer plate 63 is also provided with a screw hole for connecting to the mounting plate 64 by screws. The buffer plate 63 passes through the step of the support column 61, so that it can maintain a certain distance from the ground, which can further play a sound insulation effect.

[0030] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the present invention is described in detail: The sound source cabin 111 of the cruise ship sample cabin acoustic vibration characteristic experimental test platform provided by the present invention can be used to place a sound source generator to emit a preset sound wave, and the receiving cabin 112 can be used to place a receiver, and the receiver can be used to receive the preset sound wave transmitted from the sound source cabin 111 and passing through the air gap 113, and display the received sound wave parameters, and then compare the parameters with the preset sound wave emitted by the sound source generator, so as to obtain the influence of the air gap on the sound wave, and provide theoretical guidance and experimental support for the acoustic design of the cruise ship cabin. When it is necessary to adjust the space size of the air gap 113, the first partition 21 and / or the second partition 22 can be moved relative to the cabin body to change the space size of the air gap 113, without the need to configure multiple cruise ship experimental devices with different isolation spaces, which is convenient to use and has low experimental cost.

[0031] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A cruise ship sample cabin acoustic and vibration characteristics experimental test platform, characterized in that: include: A cabin body, wherein an experimental cavity is provided in the cabin body; and A first partition and a second partition, wherein the first partition and the second partition are both movably arranged in the experimental chamber, the first partition and the chamber wall of the experimental chamber are combined to form a sound source chamber, the second partition and the chamber wall of the experimental chamber are combined to form a receiving chamber, an air gap is formed between the first partition and the second partition, and at least one of the first partition and the second partition can change the spatial size of the air gap when sliding.

2. The cruise ship prototype cabin acoustic and vibration characteristics experimental test platform according to claim 1, characterized in that: The experimental testing platform also includes a positioning member, which is arranged on the cabin body. The first partition is slidably connected to the positioning member, and the positioning member can lock or unlock the first partition; when the positioning member unlocks the first partition, the first partition can move relative to the cabin body to change the spatial size of the air gap.

3. The cruise ship sample cabin acoustic and vibration characteristics experimental test platform according to claim 2, characterized in that: The positioning member includes a positioning frame and a positioning screw. The positioning frame is provided with a movable groove penetrating along the moving direction of the first partition. The positioning screw passes through the movable groove and is threadedly connected to the first partition. When rotating, the positioning screw can cooperate with the first partition to clamp the positioning frame so that the first partition and the positioning frame are relatively fixed.

4. The cruise ship sample cabin acoustic and vibration characteristics experimental test platform according to claim 3, characterized in that: There are multiple movable grooves and positioning screws. The multiple movable grooves are located on the positioning frame and are arranged in a straight line along the sliding direction perpendicular to the first partition. Each positioning screw passes through the movable groove and is threadedly connected to the positioning frame.

5. The cruise ship sample cabin acoustic vibration characteristics experimental test platform according to claim 2, characterized in that: The second partition is slidably connected to the positioning member, and the second partition can move relative to the cabin body to change the space size of the air gap.

6. The cruise ship prototype cabin acoustic and vibration characteristics experimental test platform according to claim 5, characterized in that: Positioning flanges are provided on opposite sides of the positioning frame, and the two positioning flanges are respectively provided with a first movable groove and a second movable groove, the first positioning screw passes through the first movable groove and is threadedly connected to the first partition, and the second positioning screw passes through the second movable groove and is threadedly connected to the second partition.

7. The cruise ship prototype cabin acoustic and vibration characteristics experimental test platform according to claim 1, characterized in that: The cabin body includes a top plate, a bottom plate, a plurality of side plates and a plurality of L-shaped components. Adjacent side plates are connected by the L-shaped components. The top plate, the bottom plate and the plurality of side plates are circumferentially enclosed to form the experimental cavity.

8. The cruise ship prototype cabin acoustic and vibration characteristics experimental test platform according to claim 1, characterized in that: The test platform also includes an upper deck and a lower deck. Both the upper deck and the lower deck are hollow and have weight-reducing holes on their sides. The upper deck and the lower deck are respectively arranged on the top and bottom of the cabin.

9. The cruise ship sample cabin acoustic and vibration characteristics experimental test platform according to claim 8, characterized in that: The test platform also includes a plurality of sound insulation feet, which are respectively arranged at four top corners of the bottom of the lower deck.

10. The cruise ship prototype cabin acoustic and vibration characteristics experimental test platform according to claim 9, characterized in that: The sound insulation foot includes a support column, a base, a buffer plate and a mounting plate, the base is connected to the bottom of the support column, the support column has a step, the buffer plate and the mounting plate are both sleeved on the step, the buffer plate is located between the mounting plate and the base, and the lower deck is sleeved on the support column and connected to the top of the mounting plate.

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