A device for simulating uniformly distributed wind load and a method for using the same

Abstract

The present invention provides a device for simulating uniformly distributed wind load and a method for using the device, comprising a first pulley and a second pulley, a plurality of second pulleys are uniformly distributed on one side of the object to be measured, each second pulley is fixed on the object to be measured as a wind load loading point, a plurality of first pulley ends are fixed, the first pulley and the second pulley are connected by a rope, and a load is provided at at least one end of the rope. The gravity of the load can be transferred to the second pulley through the rope and the first pulley, the second pulley is fixed on the object to be measured as a wind load loading point, and the number of wind load loading points can be arranged as needed, and only a load needs to be provided at the end of the rope to apply an equivalent wind load to the object to be measured, so that the wind load measurement of the object to be measured is more convenient, the wind load simulation is more realistic, the overall structure is simple and compact, and the operation is simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of simulating wind loads, and in particular to a device for simulating uniformly distributed wind loads and a method for using the device. Background Art

[0002] Some structures or devices used outdoors need to withstand the impact of harsh natural environments (such as typhoons) to ensure the safety and reliability of the structures. Therefore, simulating the real environment or extreme weather as much as possible is an important test item for some outdoor structures.

[0003] Wind loads are often evenly distributed on the bearing surfaces of structures. When large structures or devices need to be tested for wind loads, the more wind load bearing points there are, the closer it is to the simulated natural environment. However, existing loading methods or structures often only perform equivalent loading at one or several locations, which cannot simulate the actual wind load well.

[0004] When multiple wind load bearing points are loaded using existing loading methods or structures, considering that each loading point corresponds to a loading device, the overall structure is complex, a large space is required, and the operation is cumbersome and complicated when adjusting the wind load. Summary of the invention

[0005] The main purpose of the present invention is to provide a device for simulating uniformly distributed wind load and a method for using the device to solve the problems in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: it includes a first pulley and a second pulley, multiple second pulleys are evenly distributed on one side of the object to be measured, each second pulley is fixed on the object to be measured as a wind load loading point, multiple first pulley ends are fixed, the first pulley and the second pulley are connected by a rope, and a load is provided at at least one end of the rope.

[0007] In the preferred embodiment, a support frame is further provided, in which a mounting column is fixedly provided, a plurality of first pulleys are evenly distributed on the mounting column, and ends of the first pulleys are fixed to the mounting column by bolts.

[0008] In a preferred embodiment, cantilever frames are provided on both sides of the support frame, and the ends of the ropes are provided on the cantilever frames.

[0009] In the preferred embodiment, a plurality of guide wheels are provided on the cantilever frame, one end of the rope is fixed on the guide wheel, and the other end is connected to the load through the plurality of guide wheels.

[0010] In a preferred embodiment, both ends of the rope are connected to the load via a plurality of guide wheels.

[0011] In a preferred embodiment, a base is provided at the bottom of the support frame, and a plurality of fixing plates are provided below the base, and the support frame is fixed by connecting the fixing plates with bolts.

[0012] In a preferred embodiment, the load is a suspended weight, or a device that provides a measurable force.

[0013] In the preferred solution, in principle, the equivalent wind load applied by each second pulley to the object under test is equal to twice the force provided by the load.

[0014] The method is as follows: S1, multiple second pulleys are installed on one side of the object to be measured, and the second pulleys are connected to the first pulleys through ropes, and the number of the second pulleys is n;

[0015] S2. Fix one end of the rope on the guide wheel on one side, and connect the other end of the rope to the load through the guide wheel on the other side. The load weight is t.

[0016] S3. The uniformly distributed load on the object under test is 2tn, and each wind load loading point is 2t. When precise loading is required, an attenuation equivalent calculation is required to compensate for the attenuated force. The compensation method is to increase the corresponding load.

[0017] The present invention provides a device for simulating uniformly distributed wind loads and a method for using the device. The gravity of the load can be transferred to a second pulley through a rope and a first pulley. The second pulley is fixed on the object to be measured as a wind load loading point, and the number of wind load loading points can be arranged according to needs. It is only necessary to provide a load at the end of the rope to apply an equivalent wind load to the object to be measured, so that the wind load measurement of the object to be measured is more convenient, the wind load simulation is more realistic, the overall structure is simple and compact, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is an axial side view of the overall structure of the present invention;

[0020] Figure 2 It is a top view of the overall structure of the present invention;

[0021] Figure 3 It is a left view of the overall structure of the present invention;

[0022] Figure 4 It is a side view of the mounting axis on the support frame of the present invention;

[0023] Figure 5 This is a front view of the present invention installed on a mounting frame;

[0024] Figure 6 is a side view of the rope connection shaft of the present invention;

[0025] Figure 7 is a top view of the rope connection of the present invention;

[0026] In the figure: support frame 1; cantilever frame 101; base 102; fixing plate 103; mounting column 104; object to be measured 2; first pulley 3; load 4; guide wheel 5; second pulley 6; rope 7. DETAILED DESCRIPTION

[0027] Example 1

[0028] like Figures 1 to 7 As shown, a device for simulating uniform wind load and a method for using the device include a first pulley 3 and a second pulley 6, a plurality of second pulleys 6 are uniformly distributed on one side of the object 2 to be measured, each second pulley 6 is fixed on the object 2 to be measured as a wind load loading point, a plurality of first pulleys 3 are fixed at the ends, the first pulley 3 and the second pulley 6 are connected by a rope 7, and a load 4 is provided at at least one end of the rope 7. With this structure, by applying the load 4 at the end of the rope 7, the required equivalent wind load can be obtained through the first pulley 3 and the second pulley 6. The second pulley 6 can be installed at multiple locations on the object 2 to be measured as needed to simulate the uniform wind load more realistically. Since the second pulley 6 can be increased according to the need for wind load simulation, the more wind load loading points there are, the greater the total wind load loading force is, that is, a larger uniform wind load can be applied to the object 2 to be measured when only a smaller load force is provided.

[0029] In the preferred embodiment, a support frame 1 is further provided, a mounting column 104 is fixedly provided in the support frame 1, a plurality of first pulleys 3 are evenly distributed on the mounting column 104, and the ends of the first pulleys 3 are fixed to the mounting column 104 by bolts. With this structure, the installation and removal of the first pulleys 3 are more convenient, and the fixing is more stable and reliable.

[0030] In a preferred embodiment, cantilever frames 101 are provided on both sides of the support frame 1 , and ends of the rope 7 are provided on the cantilever frames 101 .

[0031] In the preferred embodiment, a plurality of guide wheels 5 are provided on the cantilever frame 101, one end of the rope 7 is fixed on the guide wheel 5, and the other end is connected to the load 4 through the plurality of guide wheels 5. With this structure, one end of the rope 7 is fixed on the guide wheel 5 of the cantilever frame 101 on one side, and the other end of the rope 7 is connected to the load 4 through the plurality of guide wheels 5, and the load force is applied from one end of the rope 7.

[0032] In the preferred embodiment, both ends of the rope 7 are connected to the load 4 through a plurality of guide wheels 5. With this structure, the load 4 can be connected to both ends of the rope 7, and a load force can be applied thereto from both ends.

[0033] In a preferred embodiment, a base 102 is provided at the bottom of the support frame 1, and a plurality of fixing plates 103 are provided below the base 102. The fixing plates 103 are connected by bolts to fix the support frame 1.

[0034] In a preferred embodiment, the load 4 is a hanging weight, or a device that provides a measurable force. According to this structure, the hanging weight is the load force, or a device that provides a measurable force is used to apply a measurable load force to replace it.

[0035] In the preferred solution, theoretically, the equivalent wind load applied by each second pulley 6 to the measured object 2 is equal to twice the force provided by the load 4 .

[0036] Example 2

[0037] like Figures 1 to 7 As shown, further illustrated in combination with Example 1: multiple second pulleys 6 are installed on one side of the object under test 2, and the second pulley 6 is connected to the first pulley 3 through a rope 7, and the number of second pulleys 6 is n; one end of the rope 7 is fixed to the guide wheel 5 on one side, and the other end of the rope 7 is connected to the load 4 through the guide wheel 5 on the other side, and the weight of the load 4 is t; the uniformly distributed load on the object under test 2 is 2tn, and each wind load loading point is 2t. When precise loading is required, an attenuation equivalent calculation is required to compensate for the attenuated force, and the compensation method is to increase the corresponding load.

[0038] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A device for simulating uniformly distributed wind loads, characterized in that: It comprises a first pulley (3) and a second pulley (6), wherein a plurality of second pulleys (6) are evenly distributed on one side of the object to be measured (2), each second pulley (6) is fixed on the object to be measured (2) as a wind load loading point, the ends of the plurality of first pulleys (3) are fixed, and the plurality of first pulleys (3) and the plurality of second pulleys (6) are alternately connected in sequence via ropes (7); A support frame (1) is also provided, a mounting column (104) is fixedly provided in the support frame (1), a plurality of first pulleys (3) are evenly distributed on the mounting column (104), and ends of the first pulleys (3) are fixed to the mounting column (104) by bolts; Cantilever frames (101) are provided on both sides of the support frame (1), and ends of the ropes (7) are provided on the cantilever frames (101); A plurality of guide wheels (5) are provided on the cantilever frame (101); Both ends of the rope (7) are connected to the load (4) through a plurality of guide wheels (5).

2. The device for simulating uniformly distributed wind load according to claim 1, characterized in that: A base (102) is provided at the bottom of the support frame (1), and a plurality of fixing plates (103) are provided below the base (102). The fixing plates (103) are connected by bolts to fix the support frame (1).

3. The device for simulating uniformly distributed wind load according to claim 1, characterized in that: The load (4) is a suspended weight or a device that provides a measurable force.

4. The device for simulating uniformly distributed wind load according to claim 1, characterized in that: The equivalent wind load applied by each second pulley (6) to the object under test (2) is equal to twice the force provided by the load (4).

5. A method for using a device for simulating uniformly distributed wind load according to any one of claims 1 to 4, wherein the method is: S1, installing a plurality of second pulleys (6) on one side of the object to be measured (2), connecting the second pulleys (6) to the first pulley (3) through ropes (7), and the number of the second pulleys (6) is n; S2. Fix one end of the rope (7) to the guide wheel (5) on one side, and connect the other end of the rope (7) to the load (4) through the guide wheel (5) on the other side. The weight of the load (4) is t. S3. The uniformly distributed load on the object under test (2) is 2tn, and each wind load loading point is 2t. When precise loading is required, an attenuation equivalent calculation is required to compensate for the attenuated force. The compensation method is to increase the corresponding load.

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