A remote control device for simulating a wind field in a wind tunnel test

Abstract

The present invention discloses a remote control device for simulating a wind field in a wind tunnel test, including a rough element rotation device in the wind tunnel; the rough element rotation device in the wind tunnel is located between a turntable and a wedge movement device in the wind tunnel, and the wedge movement device outside the wind tunnel is located on the side of the wedge movement device in the wind tunnel; the rough element rotation device in the wind tunnel includes a rotating shaft, the rotating shaft is fixed in a bottom plate and both ends extend out of the bottom plate, one end of the rotating shaft is fixed with a second gear, and the other end is rotatably connected to the ground; the second gear meshes with a first gear at the output end of a motor, the motor is fixed to the ground, and an infrared control switch is arranged on the motor; a fifth magnet is fixed directly below a third rough element, and the fifth magnet is located in a magnetic slide rail arranged in the bottom plate. The present invention solves the problems in the prior art that wind field simulation consumes a large amount of manpower and it is difficult to accurately simulate a non-stationary non-Gaussian wind field and a typhoon wind field.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind tunnel tests and relates to a remote control device for simulating a wind field in a wind tunnel test. Background Art

[0002] Wind tunnel tests are an important means of studying the characteristics of wind flow. It not only plays an important role in the research and development of aerospace engineering, but also is indispensable in the fields of transportation, building construction, wind energy utilization, etc. with the development of industrial aerodynamics. In wind tunnel tests, the flow state of the wind is easy to control. The model or object is fixed in the wind tunnel and blown repeatedly, and experimental data can be obtained through measurement and control instruments and equipment.

[0003] In wind tunnel tests, spires and roughness elements are widely used in the simulation of the atmospheric boundary layer. China's specifications stipulate four types of ground roughness. Traditionally, by changing the shape and distribution position of the spires and roughness elements, four types of wind fields A, B, C, and D in nature can be respectively simulated. In particular, there are also typhoon wind fields and non-stationary non-Gaussian wind fields. This requires the test personnel to frequently enter and exit the wind tunnel laboratory and manually carry and move a large number of roughness elements and spires continuously. The adjustment process is cumbersome and takes a long time. Moreover, the spires and roughness elements are heavy and require a large amount of manpower to maintain. More importantly, during the test, if it is necessary to compare the influence of different wind fields on the structure, the wind speed needs to be reset to zero, which may lead to inaccurate experimental results. In particular, the simulation of typhoon wind fields and non-stationary non-Gaussian wind fields commonly found in mountainous areas has always been a major problem in wind tunnel experiments. Summary of the Invention

[0004] In order to achieve the above object, the present invention provides a remote control device for simulating a wind field in a wind tunnel test, which solves the problems of large manpower consumption in wind field simulation and difficult accurate simulation of non-stationary non-Gaussian wind fields and typhoon wind fields in the prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is a remote control device for simulating a wind field in a wind tunnel test, including a roughness element rotating device in the wind tunnel; the roughness element rotating device in the wind tunnel is located between the turntable and the spire moving device in the wind tunnel, and the spire moving device outside the wind tunnel is located on the side of the spire moving device in the wind tunnel;

[0006] The roughness element rotating device in the wind tunnel includes a rotating shaft, the rotating shaft is fixed in the bottom plate and both ends extend out of the bottom plate, a second gear is fixed at one end of the rotating shaft, and the other end is rotatably connected to the ground; the second gear meshes with the first gear at the output end of the motor, the motor is fixed to the ground, and an infrared control switch is arranged on the motor; a fifth magnet is fixed directly below the third roughness element, and the fifth magnet is located in the magnetic slide rail arranged in the bottom plate.

[0007] Further, the rough element rotation device in the wind tunnel further includes a second rough element, the second rough element is located in the third rough element, the first rough element is located in the second rough element, and the tops of the first rough element, the second rough element, and the third rough element are flush; a first spring is connected between the bottom of the first rough element and the bottom of the second rough element, and a second spring is connected between the bottom of the second rough element and the bottom of the third rough element; a first sliding buckle is arranged between the top of the first rough element and the top of the second rough element, and a second sliding buckle is arranged between the top of the second rough element and the top of the third rough element.

[0008] Further, a first magnet is fixed inside the side surface of the first rough element, a second magnet is fixed inside the second rough element, and the second magnet is located on the side of the second rough element closest to the first magnet; a fourth magnet is fixed inside the side surface of the second rough element, a third magnet is fixed inside the third rough element, and the third magnet is located on the side of the third rough element closest to the fourth magnet.

[0009] Further, the wedge moving device outside the wind tunnel includes a wedge; the wedge is located on the second conveyor belt, and a first pressure sensor and a second pressure sensor are respectively fixed on the second conveyor belt; a first telescopic push rod is located at the rearmost of the wedge, a second telescopic push rod is located on the side of the foremost wedge, and both the first telescopic push rod and the second telescopic push rod are fixed on the wall of the wind tunnel laboratory; a baffle pop-up device is located below the space between the foremost first wedge and the second wedge, and a first slide rail is located between the second conveyor belt and the second slide rail of the wedge moving device in the wind tunnel; a first magnetic attraction is provided at the bottom of the wedge.

[0010] Further, the first telescopic push rod includes a first telescopic rod, a second motor is fixed on the first telescopic rod to control the telescopic movement of the first telescopic rod, and a second infrared control switch is installed on the second motor;

[0011] The second telescopic push rod includes a third infrared control switch, the third infrared control switch and a pressure sensor control switch are respectively connected to the second telescopic rod, and the pressure sensor control switch is connected to the first pressure sensor through an electric circuit.

[0012] Further, the baffle pop-up device includes a telescopic device, the telescopic device is fixedly connected below the baffle, a first switch, a second switch, and a third switch are respectively connected to the telescopic device through an electric circuit, wherein the first switch is connected to the first pressure sensor of the wedge moving device outside the wind tunnel, the second switch is connected to the third pressure sensor in the bolt pop-up device of the wedge moving device in the wind tunnel, and the third switch is an infrared control type switch.

[0013] Further, the wedge moving device in the wind tunnel includes a third motor, which is fixed to the top of the wedge moving device in the wind tunnel. The output end of the third motor is vertically downward and is fixed with a third gear, which meshes with a fourth gear fixedly sleeved on the rotating rod. The third gear and the fourth gear are bevel gears. The rotating rod is rotatably connected to both sides of the wind tunnel, and a fifth gear is meshed on the rotating rod. The fifth gear is an internal gear. A second magnetic attraction is fixed on the fifth gear, and a suction sensor is arranged on the second magnetic attraction. A first conveyor belt is located below the wedge moving device in the wind tunnel. Among them, a second slide rail is located at the gap left in the middle of the first conveyor belt and is parallel to the first conveyor belt. The second slide rail fits with the first magnetic attraction at the bottom of the wedge. The second slide rail is provided with a first hole and a second hole, and a bolt popping device is located below the second hole and the first hole. The third motor is provided with a fourth switch, a fifth switch, and a sixth switch. Among them, the fourth switch is controlled by infrared rays, the fifth switch is controlled by the suction sensor, and the sixth switch is controlled by a third pressure sensor in the bolt popping device.

[0014] Further, the bolt popping device includes a protective shell and a bolt. The bolt is vertically connected to the inner bottom surface of the protective shell through a fourth spring, and the bolt is located directly below the second hole. A seventh switch, an eighth switch, a ninth switch, and a tenth switch are respectively fixed on the protective shell, and the protective shell is fixed to the ground below the first hole and the second hole. The third pressure sensor is located below the fourth spring. The seventh switch and the eighth switch are controlled by infrared rays. The ninth switch is a switch controlled by the previous bolt popping device, and the tenth switch is controlled by a photosensitive sensor.

[0015] Further, it further includes a grille rolling curtain. The grille rolling curtain includes a second rotating shaft, which is rotatably connected between the walls on both sides of the wind tunnel. The second rotating shaft is located above the wedge moving device in the wind tunnel. The second rotating shaft is fixedly connected to the output end of a fourth motor. The fourth motor is electrically connected to a fourth infrared control switch. Grilles are fixed on a third rotating shaft, and the output end of a first rotating shaft controller is fixedly connected to the third rotating shaft. Between each first rotating shaft controller is connected by a ductile metal wire or rope, which is wound around the second rotating shaft. Flow guiding holes are arranged between each grille.

[0016] Further, it further includes a windmill rolling curtain. The windmill rolling curtain includes a fourth rotating shaft, which is rotatably connected between the walls on both sides of the wind tunnel. The fourth rotating shaft is located above the wedge moving device in the wind tunnel. A fifth infrared control switch is electrically connected to a fifth motor. The fourth rotating shaft is fixedly connected to the output end of the fifth motor. The windmill is rotatably connected to a fifth rotating shaft through a sixth rotating shaft. The fifth rotating shaft is fixedly connected to the output end of a second rotating shaft controller. Between each second rotating shaft controller is connected by a ductile metal wire or rope, which is wound around the fourth rotating shaft.

[0017] The beneficial effects of the present invention are:

[0018] (1) The device can accurately and conveniently simulate various wind fields, including the conventional four types of wind fields A, B, C, and D, as well as typhoon wind fields and non-stationary and non-Gaussian wind fields commonly found in mountainous areas on this basis.

[0019] (2) The ground of the traditional wind tunnel is smooth. When various wind fields need to be simulated, it is necessary for workers to enter the wind field to place roughness elements and spires, and then debug and check whether the wind field is correct. However, for the device of the present invention, most of the placement and arrangement work can be automatically completed only by infrared rays and the rotation of the gear driven by the motor, and there is no need to repeatedly adjust and check the correctness of the wind field, saving a large amount of manpower.

[0020] (3) It has concealment. The roughness element rotating device is placed inside the floor, and the spire moving device is placed at the top of the wind tunnel, which is not easy to be discovered and has no impact on the surface wind field.

[0021] (4) When conducting experiments on the influence of different types of wind fields on buildings, when changing the wind field, the traditional wind tunnel needs to reduce the wind speed to zero again, open the wind tunnel door, and then re-zero after modifying the wind field, which will affect the accuracy of the experiment. After the device of the present invention is used, there is no need to reduce the wind speed again and open the wind tunnel door, which can reduce the contingency in the experiment and greatly improve the accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a three-dimensional structure diagram of the remote control device for simulating wind fields in wind tunnel tests in the embodiment of the present invention.

[0024] Figure 2 It is a three-dimensional structure diagram of the roughness element rotating device in the embodiment of the present invention.

[0025] Figure 3 It is an internal structure diagram of the roughness element in the roughness element rotating device in the embodiment of the present invention.

[0026] Figure 4 It is a three-dimensional structure diagram of the spire moving device outside the wind tunnel in the embodiment of the present invention.

[0027] Figure 5 It is a three-dimensional structure diagram of the spire moving device inside the wind tunnel in the embodiment of the present invention.

[0028] Figure 6It is a three-dimensional structure diagram of the first telescopic push rod in the wedge moving device outside the wind tunnel according to an embodiment of the present invention.

[0029] Figure 7 It is a three-dimensional structure diagram of the second telescopic push rod in the wedge moving device outside the wind tunnel according to an embodiment of the present invention.

[0030] Figure 8 It is a three-dimensional structure diagram of the baffle ejection device in the wedge moving device outside the wind tunnel according to an embodiment of the present invention.

[0031] Figure 9 It is a front view of the wedge moving device inside the wind tunnel according to an embodiment of the present invention.

[0032] Figure 10 It is a connection schematic diagram of the third gear and the fourth gear in the wedge moving device inside the wind tunnel according to an embodiment of the present invention.

[0033] Figure 11 It is a sectional view of the bolt popping-up device in the wedge moving device inside the wind tunnel according to an embodiment of the present invention.

[0034] Figure 12 It is a three-dimensional structure diagram of the grille rolling curtain device in the wedge moving device inside the wind tunnel according to an embodiment of the present invention.

[0035] Figure 13 It is a three-dimensional structure diagram of the windmill rolling curtain device in the wedge moving device inside the wind tunnel according to an embodiment of the present invention.

[0036] In the figure, 1. rough element rotating device inside the wind tunnel, 2. wedge moving device outside the wind tunnel, 3. wedge moving device inside the wind tunnel, 4. bottom plate, 5. rotating shaft, 6. motor, 7. infrared control switch, 8. first gear, 9. second gear, 10. magnetic slide rail, 11. first magnet, 12. second magnet, 13. third magnet, 14. fourth magnet, 15. fifth magnet, 16. first sliding buckle, 17. second sliding buckle, 18. first rough element, 19. second rough element, 20. third rough element, 21. first spring, 22. second spring, 23. first telescopic push rod, 24. second telescopic push rod, 25. baffle pop-up device, 26. first slide rail, 27. first pressure sensor, 28. second pressure sensor, 29. second conveyor belt, 30. wedge, 31. first magnetic attraction, 32. second infrared control switch, 33. second motor, 34. first telescopic rod, 35. third infrared control switch, 36. pressure sensor control switch, 37. second telescopic rod, 38. baffle, 39. telescopic device, 40. first switch, 41. second switch, 42. third switch, 43. first conveyor belt, 44. bolt pop-up device, 45. first hole, 46. second hole, 48. third motor, 49. fourth switch, 50. fifth switch, 51. third gear, 52. fourth gear, 53. fifth gear, 54. windmill rolling curtain, 55. grille rolling curtain, 56. rotating rod, 57. second magnetic attraction, 59. suction sensor, 60. second slide rail, 61. sixth switch, 65. protective shell, 66. bolt, 67. fourth spring, 68. photosensitive sensor, 69. third pressure sensor, 70. seventh switch, 71. eighth switch, 72. ninth switch, 73. tenth switch, 74. fourth motor, 75. fourth infrared control switch, 76. grille, 77. second rotating shaft, 78. third rotating shaft, 79. first rotating shaft controller, 80. diversion hole, 81. fifth motor, 82. fifth infrared control switch, 83. windmill, 84. fourth rotating shaft, 85. fifth rotating shaft, 86. sixth rotating shaft, 87. second rotating shaft controller, 88. turntable. Detailed implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] AsFigure 1 As shown, an embodiment of the present invention provides a remote control device for simulating a wind field in a wind tunnel test, including a roughness element rotation device 1 inside the wind tunnel, a wedge movement device 2 outside the wind tunnel, and a wedge movement device 3 inside the wind tunnel. Among them, the roughness element rotation device 1 inside the wind tunnel is located between the turntable 88 and the wedge movement device 3 inside the wind tunnel, and the wedge movement device 2 outside the wind tunnel is located on the side of the wedge movement device 3 inside the wind tunnel. The turntable 88 is used to install the component to be tested.

[0039] In some embodiments, as Figures 2 - 3 shown, the roughness element rotation device 1 inside the wind tunnel includes a bottom plate 4, a rotating shaft 5, a motor 6, an infrared control switch 7, a first gear 8, a second gear 9, a magnetic slide rail 10, a first magnet 11, a second magnet 12, a third magnet 13, a fourth magnet 14, a fifth magnet 15, a first sliding buckle 16, and a second sliding buckle 17. The second roughness element 19 is located in the third roughness element 20, and the first roughness element 18 is located in the second roughness element 19. The tops of the first roughness element 18, the second roughness element 19, and the third roughness element 20 are flush. A first spring 21 is connected between the bottom of the first roughness element 18 and the bottom of the second roughness element 19, and a second spring 22 is connected between the bottom of the second roughness element 19 and the bottom of the third roughness element 20. The first spring 21 and the second spring 22 are used to provide upward elastic force. A first sliding buckle 16 is arranged between the top of the first roughness element 18 and the top of the second roughness element 19, and a second sliding buckle 17 is arranged between the top of the second roughness element 19 and the top of the third roughness element 20. When the first sliding buckle 16 is opened, the first roughness element 18 pops up upward, and when the second sliding buckle 17 is opened, the second roughness element 19 pops up upward. The rotating shaft 5 is fixed in the bottom plate 4 and extends out of the bottom plate 4 at both ends. A second gear 9 is fixed at one end of the rotating shaft 5, and the other end is rotatably connected to the ground. The second gear 9 meshes with the first gear 8 at the output end of the motor 6. The motor 6 is fixed to the ground, and an infrared control switch 7 is arranged on the motor 6. The motor 6 can be controlled to start by remote control, driving the first gear 8, the second gear 9, and the rotating shaft 5 to rotate, thereby driving the bottom plate 4 to rotate, and controlling the bottom plate 4 to drive each roughness element to flip. A fifth magnet 15 is fixed directly below the third roughness element 20. The fifth magnet 15 is located in the magnetic slide rail 10 arranged in the bottom plate 4, and the fifth magnet 15 can move left and right on the magnetic slide rail 10, facilitating manual control of the third roughness element 20 to move left and right on the bottom plate 4 to adjust to a suitable position.

[0040] In some embodiments, a first magnet 11 is fixedly installed inside the side surface of the first rough element 18, and a second magnet 12 is fixedly installed inside the second rough element 19. The second magnet 12 is located on the side of the second rough element 19 closest to the first magnet 11. When the first rough element 18 pops up to a certain height, the first magnet 11 and the second magnet 12 attract each other with opposite polarities, firmly fixing the first rough element 18. A fourth magnet 14 is fixedly installed inside the side surface of the second rough element 19, and a third magnet 13 is fixedly installed inside the third rough element 20. The third magnet 13 is located on the side of the third rough element 20 closest to the fourth magnet 14. When the second rough element 19 pops up to a certain height, the third magnet 13 and the fourth magnet 14 attract each other with opposite polarities, firmly fixing the second rough element 19.

[0041] In some embodiments, as Figure 4 shown, the wedge moving device 2 outside the wind tunnel includes a first telescopic push rod 23, a second telescopic push rod 24, a baffle pop-up device 25, a first slide rail 26, a first pressure sensor 27, a second pressure sensor 28, a second conveyor belt 29, and a wedge 30. The wedge 30 is located on the second conveyor belt 29, and the first pressure sensor 27 and the second pressure sensor 28 are respectively fixed on the second conveyor belt 29. The first telescopic push rod 23 is located at the rearmost of the wedge 30, and the second telescopic push rod 24 is located on the side of the foremost wedge 30. Both the first telescopic push rod 23 and the second telescopic push rod 24 are fixed on the wall of the wind tunnel laboratory. The baffle pop-up device 25 is located below the space between the foremost first wedge 30 and the second wedge 30, and the first slide rail 26 is located between the second conveyor belt 29 and the second slide rail 60 of the wedge moving device 3 inside the wind tunnel. A first magnetic attraction 31 is provided at the bottom of the wedge 30. The first telescopic push rod 23 pushes the wedge 30 forward. When the foremost first wedge 30 presses on the first pressure sensor 27, the baffle 38 of the baffle pop-up device 25 pops up to block the second wedge 30. The second telescopic push rod 24 pushes the first wedge 30 to move laterally and enter the second slide rail 60 of the wedge moving device 3 inside the wind tunnel along the first slide rail 26. Then the baffle of the baffle pop-up device 25 retracts, and the telescopic push rod continues to push the wedge 30 forward. After the test, the wedge moving device 3 inside the wind tunnel sends the wedge 30 back. After the second pressure sensor 28 senses the pressure of the wedge 30, the second conveyor belt 29 conveys the wedge 30 to the initial position.

[0042] In some embodiments, as Figure 6 shown, the first telescopic push rod 23 includes a second infrared control switch 32, a second motor 33, and a first telescopic rod 34. Among them, the second motor 33 is used to control the telescopic movement of the first telescopic rod 34. The second infrared control switch 32 is installed on the second motor 33, and the second motor 33 is turned on and off through infrared control.

[0043] In some embodiments, as Figure 7As shown in the figure, the second telescopic push rod 24 includes a third infrared control switch 35, a pressure sensor control switch 36, and a second telescopic rod 37. Among them, the third infrared control switch 35 is connected to the second telescopic rod 37 through a circuit for pressure, the pressure sensor control switch 36 is connected to the first pressure sensor 27. When the first pressure sensor 27 senses pressure, the pressure sensor control switch 36 controls the second telescopic rod 37 to extend, and when no pressure is sensed, the pressure sensor control switch 36 controls the second telescopic rod 37 to retract; when it is necessary to restore the wind field, if the second telescopic rod 37 fails to retract in time, the third infrared control switch 35 controls the second telescopic rod 37 to retract.

[0044] In some embodiments, as Figure 8 shown, the baffle pop-up device 25 includes a baffle 38, a telescopic device 39, a first switch 40, a second switch 41, and a third switch 42; among them, the telescopic device 39 is fixedly connected below the baffle 38, and the first switch 40, the second switch 41, and the third switch 42 are respectively connected to the telescopic device 39 through a circuit. The rising and falling of the baffle 38 are respectively controlled by the first switch 40, the second switch 41, and the third switch 42. The first switch 40 is connected to the first pressure sensor 27 of the wedge moving device 2 outside the wind tunnel. When the first pressure sensor 27 recognizes pressure, the first switch 40 controls the telescopic device 39 and the baffle 38 to pop up upward. When the first pressure sensor 27 does not recognize pressure, the telescopic device 39 and the baffle 38 retract; the second switch 41 is connected to the third pressure sensor 69 in the bolt pop-up device 44 of the wedge moving device 3 in the wind tunnel. When the third pressure sensor 69 recognizes that the pressure becomes smaller, the second switch 41 controls the telescopic device 39 and the baffle 38 to retract; the third switch 42 is an infrared control type switch and is controlled by infrared. When it is necessary to restore the wind field, if the telescopic device 39 and the baffle 38 fail to retract in time, it is controlled by infrared to retract.

[0045] In some embodiments, as Figure 5 and Figure 9As shown, the wedge moving device 3 in the wind tunnel includes a first conveyor belt 43, a bolt popping device 44, a first hole 45, a second hole 46, a third motor 48, a fourth switch 49, a fifth switch 50, a third gear 51, a fourth gear 52, a fifth gear 53 (internal gear), a rotating rod 56, a first magnetic attraction 31, a second magnetic attraction 57, a suction sensor 59, a second slide rail 60, and a wedge 30; The third motor 48 is fixed to the top of the wedge moving device 3 in the wind tunnel. The output end of the third motor 48 is vertically downward and is fixed with a third gear 51. The third gear 51 meshes with a fourth gear 52 fixedly sleeved on the rotating rod 56. The third gear 51 and the fourth gear 52 are bevel gears; The rotating rod 56 is rotatably connected to both sides of the wind tunnel. A fifth gear 53 is meshed on the rotating rod 56. The fifth gear 53 is an internal gear; The second magnetic attraction 57 is fixed on the fifth gear 53, and the second magnetic attraction 57 is provided with a suction sensor 59; The first conveyor belt 43 is located below the wedge moving device 3 in the wind tunnel. The second slide rail 60 is located in the middle of the first conveyor belt 43 and is parallel to the first conveyor belt 43. The second slide rail 60 fits with the first magnetic attraction 31 at the bottom of the wedge 30; The first hole 45 and the second hole 46 are opened on the second slide rail 60. The bolt popping device 44 is located below the second hole 46 and the first hole 45. Among them, the first hole 45 is used to transmit light to the photosensitive sensor 68 of the bolt popping device 44, and the second hole 46 is used to extend the bolt 66 of the bolt popping device 44. The extended bolt 66 is used to prevent the wedge 30 from moving left and right; The windmill rolling curtain 54 and the grille rolling curtain 55 are located at the top of the wedge moving device 3 in the wind tunnel. The third motor 48 is provided with a fourth switch 49, a fifth switch 50, and a sixth switch 61. Among them, the fourth switch 49 is controlled by infrared rays, the fifth switch 50 is controlled by the suction sensor 59, and the sixth switch 61 is controlled by the third pressure sensor 69 in the bolt popping device 44. When the fourth switch 49 and the fifth switch 50 are both turned on, the third motor 48 starts to rotate forward; When the fourth switch 49 and the sixth switch 61 are both turned on, the third motor 48 starts to rotate in reverse; The connection method of the third gear 51 and the fourth gear 52 is as Figure 10 shown.

[0046] In some embodiments, such as Figure 11As shown, the bolt ejection device 44 includes a protective housing 65, a bolt 66, a fourth spring 67, a photosensitive sensor 68, a third pressure sensor 69, a seventh switch 70, an eighth switch 71, a ninth switch 72, and a tenth switch 73. Among them, the bolt 66 is vertically connected to the inner bottom surface of the protective housing 65 through the fourth spring 67. The bolt 66 is located directly below the second hole 46. The seventh switch 70, the eighth switch 71, the ninth switch 72, and the tenth switch 73 are respectively fixed on the protective housing 65, and the protective housing 65 is fixed to the ground under the first hole 45 and the second hole 46. The third pressure sensor 69 is located below the fourth spring 67 and is used to sense the change in the pressure of the fourth spring 67. The ejection and retraction of the bolt 66 (i.e., the expansion and contraction of the fourth spring 67) are controlled by four switches: the seventh switch 70 and the eighth switch 71 are controlled by infrared rays, the ninth switch 72 is the switch controlled by the previous bolt ejection device 44 for identification, and the tenth switch 73 is controlled by the photosensitive sensor 68. Among them, the seventh switch 70 is used to control the retraction of the bolt 66, and the eighth switch 71, the ninth switch 72, and the tenth switch 73 jointly control the ejection of the bolt 66. In this embodiment, the fourth spring 67 is a spring whose expansion and contraction are electrically controlled.

[0047] In some embodiments, as Figure 12 shown, the grille rolling curtain 55 includes a fourth motor 74, a fourth infrared control switch 75, grilles 76, a second rotating shaft 77, a third rotating shaft 78, a first rotating shaft controller 79, and a diversion hole 80. Among them, the second rotating shaft 77 is rotatably connected between the walls on both sides of the wind tunnel. The second rotating shaft 77 is located above the wedge moving device 3 in the wind tunnel. The second rotating shaft 77 is fixedly connected to the output end of the fourth motor 74, and the fourth motor 74 controls the rotation of the second rotating shaft 77. The fourth motor 74 and the fourth infrared control switch 75 are connected by an electric circuit. The grilles 76 are fixed on the third rotating shaft 78, and the output end of the first rotating shaft controller 79 is fixedly connected to the third rotating shaft 78. The first rotating shaft controller 79 controls the rotation of the third rotating shaft 78 to drive the rotation of the grilles 76 for adjusting the angle of the grilles 76. The first rotating shaft controllers 79 are connected to each other by a flexible metal wire or rope, wound around the second rotating shaft 77, and are retracted or lowered by controlling the rotation of the second rotating shaft 77. Diversion holes 80 are provided between the grilles 76. The diversion holes 80 can be used as a diversion structure for the typhoon wind field. After the air flow passes through, a typhoon wind speed profile different from that of a normal wind field can be formed.

[0048] In some embodiments, as Figure 13As shown in the figure, the windmill rolling curtain 54 includes a fifth motor 81, a fifth infrared control switch 82, a windmill 83, a fourth rotating shaft 84, a fifth rotating shaft 85, a sixth rotating shaft 86, and a second rotating shaft controller 87. Among them, the fourth rotating shaft 84 is rotatably connected between the walls on both sides of the wind tunnel, and the fourth rotating shaft 84 is located above the wedge moving device 3 in the wind tunnel. The fifth infrared control switch 82 is electrically connected to the fifth motor 81. The fourth rotating shaft 84 is fixedly connected to the output end of the fifth motor 81, and the fifth motor 81 is used to control the rotation of the fourth rotating shaft 84. The windmill 83 is rotatably connected to the fifth rotating shaft 85 through the sixth rotating shaft 86. The fifth rotating shaft 85 is fixedly connected to the output end of the second rotating shaft controller 87, and the second rotating shaft controller 87 controls the rotation of the fifth rotating shaft 85. The second rotating shaft controllers 87 are connected by a flexible metal wire or rope, wound around the fourth rotating shaft 84, and are retracted or lowered by controlling the rotation of the fourth rotating shaft 84.

[0049] Before installing the device, an accurate wind field commissioning is required to test the accurate positions and quantities of the roughness elements and the wedges 30 required for Class ABC wind fields, and accordingly install the remote control wind field commissioning device to the correct position.

[0050] In some embodiments, when the wind field simulation is not required usually, the roughness elements of the roughness element rotating device 1 in the wind tunnel are hidden behind the floor. The wedges 30 are placed at the wedge placement location outside the wind tunnel laboratory.

[0051] In some embodiments, when a certain type of wind field (such as Class A wind field) needs to be simulated, the infrared rays can be used to turn on the roughness element rotating device 1 in the wind tunnel, and the roughness elements required for the Class A wind field are flipped to the surface. At this time, the roughness elements required for other types of wind fields are still placed behind the floor. At this time, after the infrared control switch 7 in the roughness element rotating device 1 required for the Class A wind field receives the signal, it is turned on, the motor 6 rotates, drives the first gear 8 to rotate, the first gear 8 drives the second gear 9 to rotate, and then the rotating shaft 5 rotates, rotates the bottom plate 4 by 180°, and flips the first roughness element 18 and the second roughness element 19 placed at the bottom to the surface, and then the motor 6 stops rotating.

[0052] In some embodiments, there is a fifth magnet 15 at the bottom of the third roughness element 20 that fits the magnetic rail 10, making it difficult for each roughness element to be blown down by the oncoming flow of air, and it can move left and right flexibly to meet the requirements of other wind field commissioning.

[0053] In some embodiments, in the layout of various wind fields, the roughness elements at certain positions are stacked by roughness elements of different sizes, so the roughness elements are designed as Figure 3As shown, when the third rough element 20 needs to be superposed with the first rough element 18, the first sliding buckle 16 can be opened. At this time, the first spring 21 pops up upward. When the first rough element 18 slides upward to the joint where the first magnet 11 and the second magnet 12 are in contact, the first spring 21 stops moving upward. The magnetic suction force makes the connection between the first rough element 18 and the second rough element 19 stable. The same applies to the second rough element 19 and the third rough element 20.

[0054] In some embodiments, the wedge moving device 2 outside the wind tunnel also starts to move. At this time, the second infrared control switch 32 in the first telescopic push rod 23 recognizes the infrared ray for controlling the Class A wind field, the second motor 33 rotates, and the first telescopic rod 34 extends to the designated position to push the wedge 30 forward.

[0055] In some embodiments, when the first wedge 30 reaches the designated position, it just presses the first pressure sensor 27. The first pressure sensor 27 recognizes the pressure and transmits the information to the baffle pop-up device 25. The first switch 40 controlled by the first pressure sensor 27 is turned on, and the baffle 38 pops up from the ground to block the subsequent wedges 30, so that the remaining wedges 30 do not move forward temporarily.

[0056] In some embodiments, the pressure sensor control switch 36 in the second telescopic push rod 24 is turned on, the second telescopic rod 37 pushes forward, pushes the wedge 30 into the first slide rail 26, and smoothly transitions to the second slide rail 60 in the wind tunnel laboratory through the first slide rail 26, and enters the wedge moving device 3 in the wind tunnel.

[0057] At this time, the fourth switch 49 controlled by the infrared ray recognizes the Class A infrared ray and turns on. Each wedge 30 is provided with an iron sheet at the top. When the iron sheet at the top of the wedge 30 is magnetically connected to the second magnetic attraction 57 below the fifth gear 53, the suction sensor 59 transmits the information to the fifth switch 50, and the fifth switch 50 is turned on. When the fourth switch 49 and the fifth switch 50 are turned on at the same time, the third motor 48 rotates. The third motor 48 drives the third gear 51 to rotate. After the third gear 51 drives the fourth gear 52 to rotate, the rotating rod 56 rotates, driving the fifth gear 53 and the wedge 30 to move. The first magnetic attraction 31 at the bottom end of the wedge 30 fits with the second slide rail 60 and can freely and smoothly slide on the second slide rail 60.

[0058] In some embodiments, when the first wedge 30 reaches the specified position, the bolt ejection device 44 below the ground starts to work. Among them, the activation of the bolt ejection device 44 is controlled by four switches. The seventh switch 70 and the eighth switch 71 are controlled by infrared rays. The ninth switch 72 is a switch for identifying the control of the previous bolt ejection device 44, and the tenth switch 73 is controlled by the photosensitive sensor 68. The lower surface of the wedge 30 is designed with holes corresponding to the second holes 46 of the bolt ejection device 44. The ninth switch 72 of the first bolt ejection device 44 is always on, and the eighth switch 71 has identified the infrared ray of the A-type wind field and is on. When the wedge 30 moves to block the first hole 45, the photosensitive sensor 68 senses the disappearance of the upper light source, and the tenth switch 73 is turned on. When the eighth switch 71, the ninth switch 72, and the tenth switch 73 are turned on simultaneously, the fourth spring 67 and the bolt 66 pop up upward, pass through the second hole 46 on the ground and the hole at the lower end of the wedge 30, and fix the wedge 30 well.

[0059] In some embodiments, after the bolt 66 pops up, the third pressure sensor 69 identifies that the pressure above decreases, and transmits the information to the sixth switch 61 of the third motor 48 in the wedge moving device 3 in the wind tunnel and the second switch 41 in the wedge moving device 2 outside the wind tunnel. The second switch 41 is turned on to control the baffle 38 to move downward and move under the floor. At the same time, the sixth switch 61 of the third motor 48 in the wedge moving device 3 in the wind tunnel is turned on. Since the fourth switch 49 is always on, the rotating rod 56 rotates in reverse. The first telescopic push rod 23 continues to push the wedge 30 forward, and the third motor 48 rotates in reverse again to continue the transfer of the next wedge 30.

[0060] In some embodiments, when the second wedge 30 reaches above the first pressure sensor 27, the baffle ejection device 25 continues to work to block the rear wedge 30. The second telescopic push rod 24 also continues to work to convey the second wedge 30 into the wind tunnel laboratory. When the second wedge 30 reaches the specified position, the ninth switch 72 in the bolt ejection device 44 below the ground surface identifies that the previous bolt ejection device 44 is turned on and opens, and the eighth switch 71 and the tenth switch 73 are also turned on simultaneously, and the bolt 66 pops up.

[0061] Continue the foregoing work until the first telescopic push rod 23 reaches the specified length and stops running, and all the wedges 30 have reached the specified positions, and then start the fan to simulate the wind field.

[0062] In some embodiments, when the test ends or when it is necessary to switch to other types of wind fields, the restoration key can be clicked on the remote control. At this time, the second infrared remote control switch 32 of the first telescopic push rod 23 recognizes the information, and the first telescopic rod 34 retracts. The third infrared remote control switch 35 of the second telescopic push rod 24 recognizes the information, and the second telescopic rod 37 retracts. The third switch 42 of the baffle pop-up device 25 recognizes the infrared ray, and retracts the baffle below the ground. The seventh switch 70 of the bolt pop-up device 44 at the bottom of the wedge 30 recognizes the infrared ray, and retracts the bolt 66 below the ground.

[0063] In some embodiments, when the first conveyor belt 43 recognizes the infrared ray and starts to move, it transports each wedge 30 to the left. When the wedge 30 is transported to the wedge moving device 2 outside the wind tunnel, after the second pressure sensor 28 recognizes the pressure, the second conveyor belt 29 receives the signal and starts to transport the wedge 30 backward. When the pressure above the second pressure sensor 28 disappears, it indicates that the first wedge 30 has been transported, and the second conveyor belt 29 stops working until the first conveyor belt 43 transports the next wedge 30 to the second conveyor belt 29. The second pressure sensor 28 continues to recognize the pressure, and the second conveyor belt 29 continues to work until all the wedges 30 are transported back and then completely stops working. The infrared remote control switch 7 of the rough element rotating device 1 in the wind tunnel recognizes the infrared ray, rotates the bottom plate 4 by 180°, and each rough element continues to hide underground.

[0064] In some embodiments, if it is necessary to simulate typhoon wind fields under different roughnesses, after adjusting the wind fields of types A, B, C, or D, the typhoon descent key can be clicked on the infrared emitter. Among them, the fourth infrared remote control switch 75 recognizes the infrared ray, the fourth motor 74 is turned on, the second rotating shaft 77 rotates, and the grille 76 is lowered.

[0065] In some embodiments, both the third rotating shaft 78 of the grille 76 and the rear of the wedge 30 are magnetic. When the fan is turned on, the air flow will push the grille 76 and the wedge 30 to stick firmly. The diversion holes 80 between the grilles 76 can be used as the diversion structure of the typhoon wind field. After the air flow passes through, a typhoon wind speed profile different from that of the ordinary wind field can be formed.

[0066] In some embodiments, the third rotating shaft 78 can be precisely controlled by rotating the first rotating shaft controller 79 with scales, driving the grille 76 to rotate, and various typhoon wind fields can be simulated more precisely.

[0067] In some embodiments, if it is necessary to simulate non-stationary wind fields and non-Gaussian wind fields under different conditions, after adjusting the wind fields of types A, B, C, or D, the typhoon descent key can be clicked on the remote control. Among them, the fifth infrared remote control switch 82 recognizes the infrared ray, the fifth motor 81 is turned on, the fourth rotating shaft 84 rotates, and the windmill 83 is lowered.

[0068] In some embodiments, both the fifth rotating shaft 85 of the windmill 83 and the rear of the wedge 30 are magnetic. After the fan is turned on, the wind flow will push the fifth rotating shaft 85 of the windmill 83 equipped thereon to adhere firmly to the wedge 30. When the wind flow passes by, the blades of the windmill rotate around the sixth rotating shaft 86 at the center of the windmill, and the wind flow is disturbed, thus forming a non-Gaussian wind field.

[0069] In some embodiments, the fifth rotating shaft 85 can be precisely controlled by rotating the second rotating shaft controller 87 with scales, and the angles of each layer of windmills 83 can be adjusted respectively to form non-stationary wind fields at different angles.

[0070] It should be noted that the circuit connection methods not mentioned in the present invention are all conventional connection methods in the art.

[0071] Each embodiment in this specification is described in a related manner. For the same or similar parts among the embodiments, reference can be made to each other. The key points of each embodiment are the differences from other embodiments.

[0072] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A remote control device for simulating a wind field in a wind tunnel test, characterized in that, It includes a rough element rotating device (1) inside the wind tunnel; the rough element rotating device (1) inside the wind tunnel is located between the turntable (88) and the wedge moving device (3) inside the wind tunnel, and the wedge moving device (2) outside the wind tunnel is located on the side of the wedge moving device (3) inside the wind tunnel; The rough element rotating device (1) inside the wind tunnel includes a rotating shaft (5). The rotating shaft (5) is fixed in the bottom plate (4) and extends out of the bottom plate (4) at both ends. A second gear (9) is fixed at one end of the rotating shaft (5), and the other end is rotatably connected to the ground. The second gear (9) meshes with the first gear (8) at the output end of the motor (6). The motor (6) is fixed to the ground, and an infrared control switch (7) is provided on the motor (6). A fifth magnet (15) is fixed directly below the third rough element (20), and the fifth magnet (15) is located in the magnetic slide rail (10) provided in the bottom plate (4). The rough element rotating device (1) inside the wind tunnel further includes a second rough element (19). The second rough element (19) is located inside the third rough element (20), and the first rough element (18) is located inside the second rough element (19). The tops of the first rough element (18), the second rough element (19), and the third rough element (20) are flush. The bottom of the first rough element (18) is connected to the bottom of the second rough element (19) by a first spring (21), and the bottom of the second rough element (19) is connected to the bottom of the third rough element (20) by a second spring (22). A first sliding buckle (16) is provided between the top of the first rough element (18) and the top of the second rough element (19), and a second sliding buckle (17) is provided between the top of the second rough element (19) and the top of the third rough element (20). It also includes a grille rolling curtain (55). The grille rolling curtain (55) includes a second rotating shaft (77). The second rotating shaft (77) is rotatably connected between the walls on both sides of the wind tunnel. The second rotating shaft (77) is located above the wedge moving device (3) inside the wind tunnel. The second rotating shaft (77) is fixedly connected to the output end of the fourth motor (74). The fourth motor (74) is electrically connected to the fourth infrared control switch (75). The grille (76) is fixed on the third rotating shaft (78). The output end of the first rotating shaft controller (79) is fixedly connected to the third rotating shaft (78). The first rotating shaft controllers (79) are connected to each other by a ductile metal wire or rope and wound around the second rotating shaft (77). Flow guiding holes (80) are provided between the grilles (76). It further includes a windmill rolling curtain (54), and the windmill rolling curtain (54) includes a fourth rotating shaft (84). The fourth rotating shaft (84) is rotatably connected between the walls on both sides of the wind tunnel, and the fourth rotating shaft (84) is located above the wedge moving device (3) inside the wind tunnel; a fifth infrared control switch (82) is electrically connected to a fifth motor (81); the fourth rotating shaft (84) is fixedly connected to the output end of the fifth motor (81); a windmill (83) is rotatably connected to a fifth rotating shaft (85) through a sixth rotating shaft (86), and the fifth rotating shaft (85) is fixedly connected to the output end of a second rotating shaft controller (87); the second rotating shaft controllers (87) are connected by a flexible metal wire or rope and wound around the fourth rotating shaft (84).

2. The remote control device for simulating a wind field in a wind tunnel test according to claim 1, wherein A first magnet (11) is fixedly installed inside the side of the first roughness element (18), and a second magnet (12) is fixedly installed inside the second roughness element (19). The second magnet (12) is located on the side of the second roughness element (19) closest to the first magnet (11); a fourth magnet (14) is fixedly installed inside the side of the second roughness element (19), and a third magnet (13) is fixedly installed inside the third roughness element (20). The third magnet (13) is located on the side of the third roughness element (20) closest to the fourth magnet (14).

3. The remote control device for simulating a wind field in a wind tunnel test according to claim 1, characterized in that, The wedge moving device (2) outside the wind tunnel includes a wedge (30); the wedge (30) is located on a second conveyor belt (29), and a first pressure sensor (27) and a second pressure sensor (28) are respectively fixed on the second conveyor belt (29); a first telescopic push rod (23) is located at the rearmost part of the wedge (30), and a second telescopic push rod (24) is located on the side of the foremost wedge (30). Both the first telescopic push rod (23) and the second telescopic push rod (24) are fixed on the wall of the wind tunnel laboratory; a baffle ejection device (25) is located below the space between the foremost first wedge (30) and the second wedge (30), and a first slide rail (26) is located between the second conveyor belt (29) and a second slide rail (60) of the wedge moving device (3) inside the wind tunnel; a first magnetic attraction (31) is provided at the bottom of the wedge (30).

4. The remote control device for simulating a wind field in a wind tunnel test according to claim 3, wherein The first telescopic push rod (23) includes a first telescopic rod (34), and a second motor (33) is fixed on the first telescopic rod (34) for controlling the telescopic movement of the first telescopic rod (34). A second infrared control switch (32) is installed on the second motor (33); The second telescopic push rod (24) includes a third infrared control switch (35). The third infrared control switch (35) and a pressure sensor control switch (36) are respectively connected to a second telescopic rod (37), and the pressure sensor control switch (36) is electrically connected to the first pressure sensor (27).

5. The remote control device for simulating a wind field in a wind tunnel test according to claim 3, characterized in that, The baffle pop-up device (25) includes a telescopic device (39). The telescopic device (39) is fixedly connected below the baffle (38). The first switch (40), the second switch (41), and the third switch (42) are respectively connected to the telescopic device (39) through circuits. Among them, the first switch (40) is connected to the first pressure sensor (27) of the wedge moving device (2) outside the wind tunnel, the second switch (41) is connected to the third pressure sensor (69) in the bolt popping device (44) of the wedge moving device (3) inside the wind tunnel, and the third switch (42) is an infrared control type switch.

6. The remote control device for simulating a wind field in a wind tunnel test according to claim 1, characterized in that, The wedge moving device (3) inside the wind tunnel includes a third motor (48). The third motor (48) is fixed at the top of the wedge moving device (3) inside the wind tunnel. The output end of the third motor (48) is vertically downward and is fixed with a third gear (51). The third gear (51) meshes with a fourth gear (52) fixedly sleeved on the rotating rod (56). The third gear (51) and the fourth gear (52) are bevel gears. The rotating rod (56) is rotatably connected to both sides of the wind tunnel. A fifth gear (53) is meshed on the rotating rod (56). The fifth gear (53) is an internal gear. The second magnetic attraction (57) is fixed on the fifth gear (53). The second magnetic attraction (57) is provided with a suction force sensor (59). The first conveyor belt (43) is located below the wedge moving device (3) inside the wind tunnel. Among them, the second slide rail (60) is located at the gap left in the middle of the first conveyor belt (43) and is parallel to the first conveyor belt (43). The second slide rail (60) fits with the first magnetic attraction (31) at the bottom of the wedge (30). The first hole (45) and the second hole (46) are opened on the second slide rail (60). The bolt popping device (44) is located below the second hole (46) and the first hole (45). The fourth switch (49), the fifth switch (50), and the sixth switch (61) are arranged on the third motor (48). Among them, the fourth switch (49) is controlled by infrared rays, the fifth switch (50) is controlled by the suction force sensor (59), and the sixth switch (61) is controlled by the third pressure sensor (69) in the bolt popping device (44).

7. The remote control device for simulating a wind field in a wind tunnel test according to claim 6, characterized in that, The bolt popping device (44) includes a protective shell (65) and a bolt (66). The bolt (66) is vertically connected to the inner bottom surface of the protective shell (65) through a fourth spring (67). The bolt (66) is located directly below the second hole (46). The seventh switch (70), the eighth switch (71), the ninth switch (72), and the tenth switch (73) are respectively fixed on the protective shell (65). The protective shell (65) is fixed to the ground below the first hole (45) and the second hole (46). The third pressure sensor (69) is located below the fourth spring (67). The seventh switch (70) and the eighth switch (71) are controlled by infrared rays. The ninth switch (72) is a switch controlled by the previous bolt popping device (44). The tenth switch (73) is controlled by a photosensitive sensor (68).

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