阅读说明：本技术 一种高速列车减小空气阻力和降低车内噪声的仿生外表面结构 (Bionic outer surface structure for reducing air resistance and noise in high-speed train ) 是由 张开升 杜凯林 张一彤 李朝阳 张保成 赵波 王强 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种高速列车减小空气阻力和降低车内噪声的仿生外表面结构,涉及高速铁路交通技术领域,包括高速列车壳体,所述高速列车壳体的侧面和顶部均设置有减阻降噪机构,所述高速列车壳体的内壁上设置有内部降噪机构,所述减阻降噪机构包括连接下表层,所述连接下表层的底部涂设有黏性胶。本发明通过在仿生鸟类羽毛上表层的外壁上设置有仿生鸟类羽毛状结构凸起,该凸起紧密排列在一起,在仿生鸟类羽毛上表层的外壁上形成有序的凸起和凹坑,在高速列车行驶过程中,利用此凸起和凹坑改变列车车厢外壁面的空气流场结构,实现高速列车行进过程的减阻降噪,避免列车行驶过程中车厢内部噪音过大的问题。(The invention discloses a bionic outer surface structure for reducing air resistance and noise in a high-speed train, which relates to the technical field of high-speed railway traffic. According to the invention, the outer wall of the upper surface layer of the bionic bird feather is provided with the bionic bird feather-shaped structure bulges which are closely arranged together, and the outer wall of the upper surface layer of the bionic bird feather is provided with the ordered bulges and pits.)

1. The utility model provides a bionic outer surface structure that high speed train reduces air resistance and reduces noise in car, includes high speed train casing (1), its characterized in that: the side and the top of the high-speed train shell (1) are provided with a resistance-reducing and noise-reducing mechanism (2), and the inner wall of the high-speed train shell (1) is provided with an internal noise-reducing mechanism (3);

the drag reduction and noise reduction mechanism (2) comprises a connecting lower surface layer (21), the bottom of the connecting lower surface layer (21) is coated with adhesive glue, the connecting lower surface layer (21) is fixedly connected to the side face and the top of the high-speed train shell (1) through the adhesive glue, one face, away from the high-speed train shell (1), of the connecting lower surface layer (21) is adhered with a bionic bird feather upper surface layer (22), the lower surface of the bionic bird feather upper surface layer (22) is set to be a smooth plane in a natural state, the upper surface of the bionic bird feather upper surface layer (22) is provided with bionic bird feather-shaped structure protrusions, and the structures of the bionic bird feather-shaped structure protrusions are symmetrically arranged in the front and back direction;

mechanism (3) of making an uproar falls including bionical fish scale and falls board (31) of making an uproar, it is equipped with the adhesive, adjacent two to scribble on the outer wall of board (31) of making an uproar falls bionical fish scale fall fixedly connected with connecting block (32) between board (31) of making an uproar fall, board (31) of making an uproar falls through adhesive fixed connection on the inner wall of high-speed train casing (1) in bionical fish scale.

2. The bionic outer surface structure for reducing air resistance and noise in a high-speed train according to claim 1, characterized in that: swing joint has PMKD (33) on the inner wall of board (31) of making an uproar falls in bionical fish scale, the top fixedly connected with installation piece (34) of PMKD (33), scribble on the outer wall of installation piece (34) and be equipped with the adhesive, installation piece (34) are through adhesive fixed connection on the inner wall of high-speed train casing (1).

3. The bionic outer surface structure for reducing air resistance and noise in a high-speed train according to claim 1, characterized in that: fixedly connected with abatvoix (35) on the inner wall of fixed baseplate (33), fixedly connected with HPL board (36) on the inner wall of abatvoix (35), seted up on the inner wall of HPL board (36) and inhaled the sound hole.

4. The bionic outer surface structure for reducing air resistance and noise in a high-speed train according to claim 3, characterized in that: the material of abatvoix (35) sets up to glass cotton, honeycomb through-hole (351) have all been seted up on the outer wall of abatvoix (35) and the inner wall, it has sponge filler (352) to fill in the inner chamber of abatvoix (35).

5. The bionic outer surface structure for reducing air resistance and noise in a high-speed train according to claim 3, characterized in that: the bionic fish scale noise reduction plate (31) comprises a wood base plate (311), the wood base plate (311) is fixedly connected to the inner wall of the high-speed train shell (1) through an adhesive, a bionic fish scale bump (312) is fixedly connected to the inner wall of the wood base plate (311), and a noise reduction protrusion stripe (313) is fixedly connected to the inner wall of the noise reduction protrusion stripe (313).

Technical Field

The invention relates to an outer surface structure of a high-speed train, relates to the technical field of high-speed railway traffic, and particularly relates to a bionic outer surface structure for reducing air resistance and noise in a train of the high-speed train.

Background

The noise performance in the high-speed train is one of the comfort indexes of the high-speed train, and in order to avoid the influence of the noise in the high-speed train on the comfort of passengers, the noise in the train is reduced while the air resistance is reduced, and the design of reducing the noise of the high-speed train at present has a lot of defects. The following problems exist in the prior art:

1. patent CN108859771A proposes a multi-element coupling based bionic drag reduction and noise reduction high-speed train pantograph, which reduces air resistance and aerodynamic noise by separating the boundary layer on the surface of the pantograph, but cannot perform large-area drag reduction on the surface of the train;

2. patent CN102689459A proposes a groove film for reducing resistance and noise and a method for preparing the same, which realizes resistance reduction of a high-speed train through groove shape units perpendicular to the flow direction, but cannot play a role in reducing resistance when the train runs in reverse direction, and even increases resistance and noise.

Disclosure of Invention

The invention provides a bionic outer surface structure for reducing air resistance and noise in a train of a high-speed train, which aims to have the function of reducing drag on the surface of the train in a large area and solve the problem of overlarge noise in a carriage in the running process of the train; the other purpose is to solve the problem that the resistance reduction of the high-speed train is realized through the groove shape units perpendicular to the flow direction, and the resistance reduction effect is achieved when the train runs in the reverse direction, so that the effects of bidirectional noise reduction and resistance reduction are achieved.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a bionic surface structure that high speed train reduces air resistance and reduces noise in the car, includes the high speed train casing, the side and the top of high speed train casing all are provided with the mechanism of making an uproar that falls in drag reduction, be provided with the inside mechanism of making an uproar that falls on the inner wall of high speed train casing.

The drag reduction and noise reduction mechanism is including connecting the lower top layer, the bottom on top layer is scribbled and is equipped with the stickness glue under the connection, the top layer passes through the stickness glue fixed connection in the side and the top of high-speed train casing under the connection, the adhesion has bionical birds feather upper epidermis in the one side that the high-speed train casing was kept away from to the top layer under the connection, the lower surface on bionical birds feather upper epidermis sets up to natural state's smooth plane, the upper surface on bionical birds feather upper epidermis is provided with bionical birds feather column structure arch, the bellied structure of bionical birds feather column structure sets up for symmetry around.

The internal noise reduction mechanism comprises bionic scale noise reduction plates, an adhesive is coated on the outer walls of the bionic scale noise reduction plates, two adjacent bionic scale noise reduction plates are fixedly connected with connecting blocks, and the bionic scale noise reduction plates are fixedly connected to the inner wall of the high-speed train shell through the adhesive.

The technical scheme of the invention is further improved as follows: the bionic fish scale noise reduction plate is characterized in that a fixing base plate is movably connected to the inner wall of the bionic fish scale noise reduction plate, a mounting block is fixedly connected to the top of the fixing base plate, an adhesive is coated on the outer wall of the mounting block, and the mounting block is fixedly connected to the inner wall of the high-speed train shell through the adhesive.

The technical scheme of the invention is further improved as follows: the sound absorption board is fixedly connected to the inner wall of the fixed base board, the HPL board is fixedly connected to the inner wall of the sound absorption board, and the sound absorption hole is formed in the inner wall of the HPL board.

The technical scheme of the invention is further improved as follows: the material of abatvoix sets up to glass cotton, the honeycomb through-hole has all been seted up on the outer wall of abatvoix and the inner wall, it has the sponge filler to fill in the inner chamber of abatvoix.

The technical scheme of the invention is further improved as follows: the bionic scale noise reduction plate comprises a wood base plate, the wood base plate is fixedly connected to the inner wall of the high-speed train shell through an adhesive, a bionic scale protruding block is fixedly connected to the inner wall of the wood base plate, and noise reduction protruding stripes are fixedly connected to the inner wall of the noise reduction protruding stripes.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:

1. the invention provides a bionic outer surface structure for reducing air resistance and noise in a high-speed train, which is characterized in that the upper surface layer of bionic bird feather and the protrusions of the bionic bird feather-shaped structure are combined, the protrusions of the bionic bird feather-shaped structure are arranged on the outer wall of the upper surface layer of the bionic bird feather and are closely arranged together, and orderly protrusions and pits are formed on the outer wall of the upper surface layer of the bionic bird feather.

2. The invention provides a bionic outer surface structure for reducing air resistance and noise in a train of a high-speed train, which is characterized in that the upper surface layer of a bionic bird feather is combined with a protrusion of the bionic bird feather-shaped structure, and the front-back symmetry of the upper surface layer of the whole bionic bird feather is realized by utilizing the front-back symmetry of the protrusion of the bionic bird feather-shaped structure, so that the bionic bird feather-shaped structure also has good effects of reducing drag and noise in the train of the high-speed train when the high-speed train runs reversely, the problem that the drag reduction of the high-speed train can play a role of reducing drag when the train runs reversely by a groove shape unit perpendicular to the flow direction is solved, and the reliability of the structure is improved.

3. The invention provides a bionic outer surface structure for reducing air resistance and noise in a high-speed train, which is characterized in that a bionic fish scale lug, a noise reduction raised stripe, a honeycomb through hole and a sponge filler are combined, the inner wall of a shell of the high-speed train is in an irregular shape through the design of the bionic fish scale lug and the noise reduction raised stripe, the problem of continuous noise transmission caused by the smoothness of the inner wall of the shell of the high-speed train is solved, the function of effectively absorbing the noise on the shell of the high-speed train is realized, the noise in the inner cavity of the shell of the high-speed train can be absorbed through the design of the honeycomb through hole and the sponge filler, the transmission efficiency of the noise in the inner cavity of the shell of the high-speed train is reduced, and the comfort level of passengers is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of the drag reduction mechanism of the present invention;

FIG. 3 is a schematic view of the upper surface structure of the feather of a bionic bird according to the present invention;

FIG. 4 is an exploded view of the internal noise reduction mechanism of the present invention;

FIG. 5 is a schematic view of a portion of the construction of the sound-absorbing panel of the present invention;

fig. 6 is a schematic view of a part of the structure of the bionic fish scale noise reduction plate.

In the figure: 1. a high speed train housing;

2. a resistance reducing and noise reducing mechanism; 21. connecting the lower surface layer; 22. simulating the upper surface layer of the bird feather;

3. an internal noise reduction mechanism; 31. a bionic fish scale noise reduction plate; 311. a wood substrate; 312. bionic fish scale bumps; 313. noise reduction raised stripes; 32. connecting blocks; 33. fixing the substrate; 34. mounting blocks; 35. a sound-absorbing panel; 351. a honeycomb through hole; 352. a sponge filler; 36. HPL plate.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in figures 1-6, the invention provides a bionic outer surface structure for reducing air resistance and noise in a high-speed train, which comprises a high-speed train shell 1, wherein the side surface and the top of the high-speed train shell 1 are both provided with a drag reduction and noise reduction mechanism 2, the inner wall of the high-speed train shell 1 is provided with an internal noise reduction mechanism 3, the drag reduction and noise reduction mechanism 2 comprises a lower connecting surface layer 21, the bottom of the lower connecting surface layer 21 is coated with viscous glue, the lower connecting surface layer 21 is fixedly connected with the side surface and the top of the high-speed train shell 1 through the viscous glue, one surface of the lower connecting surface layer 21, which is far away from the high-speed train shell 1, is adhered with a bionic bird feather upper surface layer 22, the lower surface of the bionic bird feather upper surface layer 22 is a smooth plane in a natural state, the upper surface of the bionic bird feather upper surface layer 22 is provided with bionic feather-shaped structure bulges, and the structures of the bionic bird feather-shaped structure bulges are symmetrically arranged front and back, the internal noise reduction mechanism 3 comprises bionic scale noise reduction plates 31, adhesives are coated on the outer walls of the bionic scale noise reduction plates 31, the adhesives are epoxy resin adhesives, a connecting block 32 is fixedly connected between every two adjacent bionic scale noise reduction plates 31, the bionic scale noise reduction plates 31 are fixedly connected to the inner wall of the high-speed train shell 1 through the adhesives, the outer wall of the bionic bird feather upper surface layer 22 is provided with bionic bird feather-shaped structure protrusions which are closely arranged together, ordered protrusions and pits are formed on the outer wall of the bionic bird feather upper surface layer 22, in the running process of the high-speed train, the protrusions and the pits are utilized to change the air flow field structure of the outer wall surface of a train carriage, the drag reduction in the running process of the high-speed train is realized, and the problem that the drag reduction on the surface of the train cannot be carried out on a large scale when the air resistance and the aerodynamic noise are reduced by separating the boundary layer on the surface of an electric pantograph is solved, the combination of the bionic bird feather upper surface layer 22 and the bionic bird feather-shaped structure bulges is adopted, the front-back symmetry of the whole bionic bird feather upper surface layer 22 is realized by utilizing the front-back symmetry of the bionic bird feather-shaped structure bulges, so that the effects of good resistance reduction and noise reduction in a vehicle are also realized when a high-speed train runs reversely, the problem that the resistance reduction of the high-speed train plays a role in resistance reduction when the train runs reversely is solved by utilizing groove shape units perpendicular to the flow direction, in the practical application process, the bionic bird feather upper surface layer 22 can be replaced by surface structures of organisms such as bionic fish scales, shark scurf and the like, or other artificially designed non-smooth surface structures are adopted, the structures can also realize the purposes of reducing air resistance and noise in the vehicle by changing an air flow field near the outer surface of the carriage, and the applicability of the structure is improved, or in the actual production, the outer wall of the high-speed train shell 1 can be directly processed into the non-smooth surface structures such as the bionic scale and the shark shield scale, so that the problem of poor durability effect caused by adopting a sticking mode is solved.

Example 2

As shown in fig. 1 to 6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, swing joint has a fixed baseplate 33 on the inner wall of board 31 of making an uproar falls in the bionical fish scale, fixed baseplate 33's top fixedly connected with installation piece 34, scribble on the outer wall of installation piece 34 and be equipped with the adhesive, installation piece 34 passes through adhesive fixed connection on the inner wall of high-speed train casing 1, fixedly connected with abatvoix 35 on fixed baseplate 33's the inner wall, fixedly connected with HPL board 36 on abatvoix 35's the inner wall, the sound-absorbing hole has been seted up on HPL board 36's the inner wall, through the sound-absorbing hole, be convenient for noise in the inner chamber of high-speed train casing 1 enters into the inner chamber of abatvoix 35 through it, so that the realization of the function of making an uproar falls in inside, through being equipped with the adhesive, the person of facilitating the use installs the whole mechanism 3 of making an uproar falls in the inside, through the design of HPL board 36, promote the wearability of high-speed train casing 1 inner wall.

Example 3

As shown in fig. 1 to 6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the sound-absorbing board 35 is made of glass wool, honeycomb through holes 351 are formed in the outer wall and the inner wall of the sound-absorbing board 35, sponge fillers 352 are filled in the inner cavity of the sound-absorbing board 35, the bionic fish scale noise-reducing board 31 comprises a wood substrate 311, the wood substrate 311 is fixedly connected to the inner wall of the high-speed train shell 1 through an adhesive, bionic fish scale bumps 312 are fixedly connected to the inner wall of the wood substrate 311, noise-reducing convex stripes 313 are fixedly connected to the inner wall of the noise-reducing convex stripes 313, the inner wall of the high-speed train shell 1 is irregular through the design of the bionic fish scale bumps 312 and the noise-reducing convex stripes 313, the problem that the noise is continuously transmitted due to the smoothness of the inner wall of the high-speed train shell 1 is solved, the function of effectively absorbing the noise on the high-speed train shell 1 is realized, through the design of the honeycomb through holes 351 and the sponge fillers 352, the noise passing through the sound-absorbing holes can enter the inner cavity of the sound-absorbing board 35 through the honeycomb through holes 351, through the sound characteristic of inhaling of sponge filler 352 self-generation, absorb the noise in the 1 inner chamber of high speed train casing, realize falling the function of making an uproar to high speed train casing 1 inside, promote passenger's the experience of taking.

The working principle of the bionic outer surface structure of the high-speed train for reducing air resistance and noise in the train is described in detail below.

As shown in fig. 1-6, before the use, clean the stoving to the outer wall of high speed train casing 1, then will connect down top layer 21 and install on the smooth surface at high speed train casing 1 side and top through the stickness glue, can realize the function of making an uproar falls in drag reduction through bionical birds feather column structure arch, through bionical fish scale lug 312 and the design of falling the protruding stripe 313 of making an uproar, avoid the smooth problem that leads to the noise to continuously propagate of inner wall of high speed train casing 1, cooperation through honeycomb through-hole 351 and sponge filler 352, absorb the noise that produces in the high speed train casing 1 inner chamber.

The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.