CN112144431B

CN112144431B - Airport runway sound insulation system

Info

Publication number: CN112144431B
Application number: CN202011028376.5A
Authority: CN
Inventors: 李文轩; 齐涛; 郑双
Original assignee: Weihai Guangtai Airport Equipment Co Ltd
Current assignee: Weihai Guangtai Airport Equipment Co Ltd
Priority date: 2020-09-26
Filing date: 2020-09-26
Publication date: 2021-09-07
Anticipated expiration: 2040-09-26
Also published as: CN112144431A

Abstract

The invention relates to an airport runway sound insulation system, which comprises a controller and sound insulation walls with adjustable height, wherein the sound insulation walls are positioned at two sides of a runway, each sound insulation wall is formed by connecting a plurality of sound insulation plates which are sequentially connected and have independently adjustable height, the height of the sound insulation plates can be adaptively adjusted according to the size of an airplane by the aid of height data of the airplane on the runway, which is acquired by the controller, and sound absorption parts are also arranged on the sound insulation plates; through sound insulation system, can guide the noise that aircraft engine produced on the runway to the runway top and carry out certain absorption and decay to the noise simultaneously, and then can reduce the influence of the noise that aircraft engine produced on the runway to surrounding environment. And when no plane is on the runway, the height of the sound insulation board can be reduced to a lower height, and the observation view of the runway of the airport and other runways are not influenced.

Description

Airport runway sound insulation system

Technical Field

The invention relates to the field of facilities in airports, in particular to a sound insulation system for an airport runway, which is used for effectively absorbing noise generated by tail gas of an airplane in the process of sliding the airplane on the runway and reducing the influence of the noise of the airplane on the surrounding environment as much as possible.

Background

Along with the development of the society, the technological progress and the improvement of the living standard of people, people also have more and more demands on traveling, and the requirements on the convenience and the timeliness of the traveling are higher and higher, especially for the remote traveling, and the airplane becomes the first choice of the remote traveling of people by the high speed, the comfort and the convenience of the airplane. However, the airplane is comfortable and convenient for people, and other problems also exist, for example, when the airplane is in a test run or takes off, a jet nozzle of an airplane engine can generate high-speed high-temperature airflow and high-decibel noise, so that severe influence is caused to airport staff and nearby residents, and adverse influence is brought to physical and mental health of the airport staff and the nearby residents.

In order to reduce the adverse effect caused by the noise of the aircraft engine, the main measures adopted at present are: 1. the airport is built in a remote zone far away from the residential area, so that the influence on nearby residents is reduced; 2. aiming at the noise of the engine in the test run process, a test run area is built, the test run area is equivalent to a totally closed hall or workshop, or is opened in the air inlet direction of the machine head end as far as possible, and is closed at the left end, the right end, the rear end and the top, so that the noise generated by the engine in the test run process is isolated and absorbed.

However, many airports in the world are very close to the city, such as the Yuntai airport in Tokyo, the Laguadia airport in New York and the Newark airport, the Shanghai Rainbo airport in China, the Kaimei Gaokai airport and the like, residential areas are distributed around the airports, and noise generated in the taking-off and landing process of airplanes at the airports has great influence on residents around the airports.

However, in the prior art, there is no means for isolating the noise generated by the aircraft during the takeoff phase and landing phase, i.e. during the running on the runway, which in this case is just one of the main scenarios for the generation of the aircraft noise. If the noise in the process could be reduced, the impact of aircraft noise on the surrounding environment could be greatly reduced. Therefore, how to isolate the noise generated by the airplane during the runway running stage is a problem that needs to be solved in the field.

Disclosure of Invention

In order to solve the technical problem, the invention provides an airport runway sound insulation system which comprises sound insulation walls with adjustable height positioned at two sides of a runway, wherein the sound insulation walls at each side are formed by connecting a plurality of sound insulation boards which are sequentially connected, and the height of each sound insulation board is independently adjustable; the sound insulation system further comprises a controller, a plurality of aircraft height sensors, a plurality of sound sensors and a plurality of actuating devices, wherein the controller is connected with the aircraft height sensors, the sound sensors and the actuating devices, the aircraft height sensors, the sound sensors and the actuating devices are respectively arranged on two sides of the runway at intervals, and each actuating device is connected with at least one sound insulation board to adjust the height of the sound insulation board; the surface of each sound insulation board facing the runway is an arc surface, wherein the arc surface protrudes towards the outer side of the runway; the sound absorption parts are arranged and fixed on the cambered surface facing the runway, each sound absorption part comprises an arc-shaped shell and a cavity structure positioned in the shell, a plurality of holes are formed in the shell to enable the cavity structure to be communicated with the outside, and the cavity structure is filled with a porous structure formed by fibers; the sound insulation board is also provided with a sound insulation board adjusting cavity, and a movable sound insulation adjusting board is arranged in the sound insulation board adjusting cavity; the controller receives data of the airplane height sensor and the sound sensor to acquire the height and position information of the airplane, and controls the actuating device to drive and adjust the heights of the multiple sound insulation boards on the two sides of the runway so that the heights of the sound insulation boards are matched with the height of the airplane; the controller controls and adjusts the position of the baffle-adjusting plate in the baffle-adjusting chamber.

Furthermore, the sound insulation board is located on the outer side of the landing indicator lamp at the edge of the runway, and a transparent observation window is further arranged on the sound insulation board.

Further, the baffle is driven by an actuating device to move in a telescopic manner in the height direction so as to adjust the height of the baffle.

Further, be provided with the mounting groove respectively in runway both sides, the acoustic celotex board sets up in the mounting groove and can follow the mounting groove and move in the direction of height.

Further, the baffle is pivotally moved by an actuator to adjust the height of the baffle.

Further, the actuating device is a hydraulic drive or an electric drive.

Further, the aircraft height sensor is an image sensor, an infrared sensor or a millimeter wave radar sensor.

Further, the sound-absorbing member has a semi-cylindrical shape, and the plurality of holes are provided in a downward-facing portion of the semi-cylindrical shape.

Further, at least 2 porous structures are arranged in each chamber structure, the porous structures are spherical or cylindrical, and the fibers of the porous structures are glass fibers, polyester fibers and/or rock wool.

Further, the controller is also capable of obtaining aircraft altitude data transmitted by an aircraft or a tower on the runway.

Because the sound insulation plate is always arranged on the side surface of the airplane in the taxiing process of the runway, the influence of crosswind can be reduced in the taxiing process of the airplane, the interference of the airplane in the lateral direction is small in the taxiing process of the runway, and the safe operation of the airplane can be increased.

The implementation of the invention has the following beneficial effects: the sound insulation systems are arranged on the two sides of the runway of the airport, the height data of the airplane on the runway, which is acquired by the controller, can adaptively adjust the height of the sound insulation board according to the size of the airplane, and meanwhile, the sound absorption component is also arranged on the sound insulation board; through sound insulation system, can guide the noise that aircraft engine produced on the runway to the top and carry out certain absorption and decay to the noise simultaneously, and then can reduce the influence of the noise that aircraft engine produced on the runway to surrounding environment. And when no plane is on the runway, the height of the sound insulation board can be reduced to a lower height, and the observation view of the runway of the airport and other runways are not influenced.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a top view of the airport runway acoustic insulation system of the present invention.

Fig. 2 is a front view of the airport runway acoustic insulation system of the present invention.

Fig. 3 is a structural view of a soundproof panel of the airport runway soundproof system of the present invention.

Wherein the reference numbers:

1. an aircraft; 2. runway landing indicator lights; 3. a sound insulating board; 4. an aircraft altitude sensor; 5. a sound sensor; 6. mounting grooves; 7. a motor; 8. a worm; 9. a worm gear; 10. a cambered surface; 11. a sound absorbing member; 12. an aperture; 13. a porous structure; 14. a sound insulation adjusting plate; 15. the baffle adjusts the chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.

In order to solve the problems set out above, the present invention proposes an airport runway acoustic insulation system comprising height-adjustable acoustic insulation walls on both sides of the runway, as shown in fig. 1, only the runway section corresponding to the aircraft 1 being shown in fig. 1, it being understood that acoustic insulation walls are provided on both sides of the majority of the runway section, i.e. the runway section corresponding to the phase of the rollout on the runway during the takeoff and/or landing of the aircraft.

The sound-proof wall on each side is formed by connecting a plurality of independent sound-proof boards 3 which are sequentially connected in front and back. Since the runway is generally long and even a portion of the runway corresponding to a run-off state during take-off or landing of the airplane 1 is long, generally about 1000m to 2000m, if a single soundproof wall is provided, the single soundproof wall must be long, which causes a great problem in terms of production, processing, transportation and assembly, the present invention selects to provide the soundproof wall in a plurality of sections, i.e., a plurality of soundproof plates 3, and then sequentially connects the plurality of soundproof plates 3 one after another on both sides of the runway to assemble the soundproof wall, which greatly reduces costs and installation difficulty.

Further, because the current civil aircraft usually has a plurality of models, the sizes and heights of the various models of aircraft are different, and the hanging heights of engines on the different models of aircraft are also different. Most of the noise generated by an aircraft is generated by the engine of the aircraft, and the engine of the aircraft generates high-speed airflow ejected backwards to generate high-decibel noise. Thus, the altitude of the noise source may vary correspondingly for different aircraft models. In order to be suitable for various types of airplanes, the height of the sound insulation board 3 used beside the runway is also set to be adjustable; for larger passenger aircraft, for example: the boeing 747, 787 and the airman a380, the height of the engine from the ground is high, and the height of the baffle 3 can be raised to a corresponding height; whereas for smaller aircraft, for example: the height of the acoustic panel 3 can be reduced to a corresponding height in the boeing 737 and the airbus a320, which are low in the height from the ground of the engine. When the runway is not being flown off or landed by an airplane, it is advantageous to be able to lower the baffle 3 to a very low height, for example 0.5m, or to retract completely under the ground, so that the view of the airport runway and other runways may not be affected.

In order to be able to adjust and control the height of the baffle 3, as shown in fig. 1 and 2, the baffle system further comprises a controller (not shown in the figure), a plurality of aircraft height sensors 4, a plurality of sound sensors 5, and a plurality of actuating devices, wherein the controller is connected to the plurality of aircraft height sensors 4, the plurality of sound sensors 5, and the plurality of actuating devices, and the controller receives data from the aircraft height sensors 4 and the sound sensors 5 and is able to control the actuating devices to operate. The aircraft height sensor 4 is used for detecting the height and the size of the aircraft 1, and because the tail gas exhausted by an engine of the aircraft 1 generally has higher temperature, the aircraft height sensor 4 can be an infrared sensor, and certainly, an image sensor or a millimeter wave radar sensor can also be adopted; the aircraft altitude sensor 4 is configured to sense the size of the aircraft 1 by sensing the size of the aircraft 1 and transmitting the sensed data to the controller, which is then processed to determine the size of the aircraft 1. The sound sensor 5 is used for detecting the noise condition at different positions or sections on the runway to know the specific position of the aircraft 1 on the runway, and the data of the sound sensor 5 is transmitted to the controller, so that the controller can know the specific position of the aircraft 1 on the runway.

The plurality of aircraft altitude sensors 4 and the plurality of sound sensors 5 are arranged on both sides of the runway and are distributed at intervals for detecting data relating to the aircraft 1 at different sections of the runway.

The baffle system further includes a plurality of actuators, see fig. 2, which are coupled to the baffle 3 and drive the baffle 3 to adjust the height of the baffle 3. The height of the baffle 3 is changed by raising and lowering the baffle 3 in the height direction, but the height of the baffle 3 may be adjusted by pivoting. Mounting grooves 6 are provided on both sides of the runway to accommodate the actuator and the baffle 3; when the baffle-board 3 is raised, the baffle-board 3 can move upward above the runway floor, and when the baffle-board 3 is lowered, the baffle-board 3 can be completely retracted into the mounting groove 6 at most, and is located below the runway floor.

A plurality of actuating devices are arranged spaced apart on both sides of the runway, see fig. 2, wherein each actuating device is connected to at least one acoustic baffle 3. The actuating device comprises a motor 7, a worm wheel 9 and a worm 8, wherein the worm wheel 9 is connected with the motor 7, one end of the worm 8 is connected with the bottom of the baffle 3, and the worm 8 is coupled with the worm wheel 9. The motor 7 can drive the worm wheel 9 to rotate in clockwise and counterclockwise directions, and the worm wheel 9 can drive the worm 8 to rise upward or fall downward, whereby the motor 7 can drive the baffle 3 to rise upward or fall downward into the installation groove 6. Preferably, the motor 7 has a stroke locking function, i.e. it is possible to position the baffle 3 at a certain height and lock it until the motor 7 receives a new height command.

Although the actuator is driven by a motor in this embodiment, other drives, such as hydraulic, may be used.

In order to absorb and guide the noise of the wake of the engine, the side of the baffle 3 facing the runway is provided with a cambered surface 10, wherein the cambered surface 10 protrudes towards the outer side of the runway; referring to fig. 2, the arc surface 10 faces upward of the runway, but it is needless to say that the arc surface 10 is disposed to face the runway. Through such setting of cambered surface 10, can guide the wake of the engine exhaust of aircraft 1 to the top to also guide the noise that the wake produced to the top of runway, thereby make wake and noise can not direct towards airport staff or near residential area, and then greatly reduced noise is to airport staff and near residential area's influence.

In order to be able to further attenuate or absorb the noise generated by the engines of the aircraft 1, a plurality of sound-absorbing elements 11 are also provided on the cambered surface 10 of the acoustic panel 3, see fig. 2 and 3. The sound-absorbing component 11 is fixed on the arc surface 10, and may be connected by bolts or rivets, or may be connected by mortise and tenon, clamping or welding. The sound-absorbing member 11 is preferably provided in a semi-cylindrical shape, i.e., one face is a flat face and the other face is an arc face. The sound-absorbing element 11 is connected to the curved surface 10 of the baffle 3 by its flat surface, and the curved surface of the sound-absorbing element 11 faces the runway and the airplane 1.

The sound-absorbing member 11 includes a casing and a cavity structure inside the casing, wherein a plurality of holes 12 are provided in the casing so that the internal cavity structure communicates with the outside. Since the wake and noise of the engine of the aircraft 1 flow upward from below on the curved surface 10 of the baffle 3, a plurality of holes 12 are provided in the lower half of the outer shell of the sound-absorbing member 11 in order to absorb and reduce the flow of air and noise, whereby the noise and air flow can enter the cavity structure inside the sound-absorbing member 11 through the holes 12 in the lower part. Further, sound-absorbing elements, in particular a porous structure 13 made of fibers, are provided in the cavity structure. The porous structure 13 is formed by winding glass fiber, polyester fiber and/or rock wool, and interconnected holes are formed in the porous structure 13, which is similar to a honeycomb structure, so that the structure can well absorb noise and attenuate the energy of the noise.

Preferably, the porous structure 13 is spherical or cylindrical, and at least 2 porous structures 13 are provided in each chamber structure. Further, the plurality of porous structures 13 in the same chamber structure may be arbitrarily selected in shape, size or void parameter, for example, the plurality of porous structures 13 may be identical or different in shape, size, void parameter and/or fiber material. By setting the porous structure 13 in a variety, it is possible to correspond to noises of different frequencies, respectively, so that noises of a plurality of frequencies can be effectively attenuated.

In order to be able to cope with the noises with different frequencies respectively, so that the sound insulation boards 3 have a better sound insulation function, see fig. 3, a sound insulation board adjusting cavity 15 is provided in the sound insulation board 3, a movable sound insulation adjusting board 14 is provided in the sound insulation board adjusting cavity 15, and the sound insulation adjusting board 14 can move in the sound insulation board adjusting cavity 15 along the horizontal direction perpendicular to the runway, so as to adjust the distance between the sound insulation adjusting board 14 and the arc surface 10 part and the distance between the sound insulation adjusting board 14 and the back board structure of the sound insulation board 3 (i.e. the part of the sound insulation board 3 back to the arc surface 10 in fig. 3). And because the existence of this acoustic celotex board regulation chamber 15 and syllable-dividing regulating plate 14, can make the noise that comes from aircraft 1 transmission after passing cambered surface 10, adjust chamber 15's syllable-dividing regulating plate 14 right side cavity part through the acoustic celotex board, then pass syllable-dividing regulating plate 14, then pass the acoustic celotex board and adjust chamber 15's syllable-dividing regulating plate 14 left side cavity part, pass the backplate structure of acoustic celotex board 3 again, pass multilayer sound insulation plate structure and cavity structure in proper order, can make acoustic celotex board 3 reach fine sound insulation effect to the noise.

Wherein, the controller can control the removal of syllable-dividing regulating plate 14, and the controller can adjust syllable-dividing regulating plate 14's position according to the model information that sound sensor 5 received, the condition of noise, makes its acoustic celotex board 3 can have different sound insulation structure respectively to specific noise condition to reach the best effect that gives sound insulation.

When the airplane 1 runs to take off or land on the runway, the airplane height sensor 4 detects the size and height of the airplane 1 to obtain the specific size of the airplane 1 and transmits data to the controller, and the controller can process the data according to the data detected by the airplane height sensor 4 to obtain the height data of the airplane 1. Meanwhile, the sound sensors 5 at different positions can obtain the noise at different positions on the runway, and transmit the detected data to the controller. The controller obtains the height of the airplane 1 and the specific position or section of the airplane 1 on the runway according to the data of the airplane height sensor 4 and the sound sensor 5. The controller controls the motor 7 to drive the sound insulation board 3 to rise to a corresponding height according to the height of the airplane 1; meanwhile, according to the position of the airplane 1 on the runway, the controller controls the sound insulation board 3 in the first interval in front of the airplane 1 on the runway to rise by the corresponding height, and controls the sound insulation board 3 in the second interval behind the airplane 1 to rise by the corresponding height. The size of the first interval is selected based on the speed of the aircraft 1 at which it is being run and the speed at which the baffle 3 is being raised, so as to ensure that the baffle 3 is raised to the required height when the aircraft 1 is slid past its location.

Of course, the controller may control the baffle 3 of the section to descend to a predetermined height when the noise generated by the engine of the aircraft 1 has attenuated to a predetermined value in the section after the aircraft 1 has taxied forward for a certain distance based on the data obtained by the sound sensor 5 at the rear of the aircraft 1. This results in that during taxiing of the aircraft 1, the baffle 3 in the first section in front of the aircraft 1 is raised to a desired height and the baffle 3 in the second section behind the aircraft 1 is at the desired height, while with taxiing of the aircraft 1, new baffles 3 are raised continuously in front and the baffles 3 behind are lowered successively to a predetermined height. Thus, the view of the runway behind the airplane is not affected, and the visual observation of the tower to each runway is not affected.

Further, the controller can also receive altitude data of the aircraft 1 transmitted from the aircraft 1 or the tower on the runway, for example, directly receive the altitude of the aircraft 1, or receive the model number of the aircraft 1, and inquire the altitude of the aircraft 1 through the model number of the aircraft 1 by a database stored in the controller in advance, and the altitude of the baffle 3 will be adjusted according to the altitude data.

Further, the sound insulation board 3 is provided with a transparent observation window (not shown in the figure), and is made of tempered glass or polyurethane material. The pilot of the aircraft 1 is able to see the off-runway situation through the viewing window, while the pilots or tower personnel of other aircraft outside the runway are able to see the condition of the aircraft 1 through the viewing window.

When there is no airplane on the runway, the controller controls all the soundproof plates 3 on both sides of the runway to descend to a predetermined lower height, for example, 0.5m, 0.2m, 0.1m, or to be directly retracted into the mounting groove 6 when it is known that there is no airplane sliding on the runway from data transmitted from the airplane height sensor 4, the sound sensor 5, or the tower. Thereby enabling the runway to return to its original condition, enabling the tower personnel to visually observe the condition on the runway.

As the sound insulation plate 3 is always arranged on the side surface of the airplane 1 in the taxiing process of the runway, the influence of crosswind can be reduced in the taxiing process of the airplane 1, the interference of the airplane 1 in the lateral direction is small in the taxiing process of the runway, and the safe operation of the airplane 1 can be increased.

While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. The airport runway sound insulation system comprises sound insulation walls with adjustable height which are positioned on two sides of a runway, wherein the sound insulation walls on each side are formed by connecting a plurality of sound insulation boards which are sequentially connected, and the height of each sound insulation board is independently adjustable; the sound insulation system further comprises a controller, a plurality of aircraft height sensors, a plurality of sound sensors and a plurality of actuating devices, wherein the controller is connected with the aircraft height sensors, the sound sensors and the actuating devices, the aircraft height sensors, the sound sensors and the actuating devices are respectively arranged on two sides of the runway at intervals, and each actuating device is connected with at least one sound insulation board to adjust the height of the sound insulation board; the surface of each sound insulation board facing the runway is an arc surface, wherein the arc surface protrudes towards the outer side of the runway; the sound absorption parts are arranged and fixed on the cambered surface facing the runway, each sound absorption part comprises an arc-shaped shell and a cavity structure positioned in the shell, a plurality of holes are formed in the shell to enable the cavity structure to be communicated with the outside, and the cavity structure is filled with a porous structure formed by fibers; the sound insulation board is also provided with a sound insulation board adjusting cavity, the sound insulation board adjusting cavity is arranged on one side of the sound insulation board, which is far away from the runway, relative to the sound absorption component, and a movable sound insulation adjusting board is arranged in the sound insulation board adjusting cavity; the controller receives data of the airplane height sensor and the sound sensor to acquire the height and position information of the airplane, and controls the actuating device to drive and adjust the heights of the multiple sound insulation boards on the two sides of the runway so that the heights of the sound insulation boards are matched with the height of the airplane; the controller controls and adjusts the position of the baffle-adjusting plate in the baffle-adjusting chamber.

2. An airport runway acoustic baffle system as claimed in claim 1 wherein the baffle is located outside the landing light at the edge of the runway and is provided with a transparent viewing window.

3. The airport runway acoustic isolation system of claim 1 wherein the acoustic isolation panel is telescopically moved in a height direction by an actuator to adjust the height of the acoustic isolation panel.

4. The airport runway sound insulation system of claim 3, wherein mounting grooves are respectively provided at both sides of the runway, and the sound insulation panel is disposed in the mounting grooves and can move in the height direction along the mounting grooves.

5. The airport runway acoustic isolation system of claim 1 wherein the acoustic isolation panel is pivotally moved by an actuator to adjust the height of the acoustic isolation panel.

6. An airport runway acoustic insulation system according to any of claims 3 to 5 wherein the actuation means is a hydraulic or electric drive.

7. An airport runway acoustic isolation system as claimed in claim 1 wherein said aircraft altitude sensor is selected from an image sensor, an infrared sensor or a millimeter wave radar sensor.

8. An airport runway acoustic insulation system according to claim 1 wherein the sound absorbing element is semi-cylindrical with the plurality of holes disposed in a downwardly facing portion of the semi-cylindrical shape.

9. An airport runway acoustic insulation system as claimed in claim 8 wherein there are at least 2 cellular structures in each cell structure, the cellular structures being spherical or cylindrical and the fibres of the cellular structures being glass fibre, polyester fibre and/or rock wool.

10. The airport runway acoustic isolation system of claim 1, wherein the controller is further capable of obtaining aircraft altitude data transmitted by an aircraft or tower on the runway.