An optimized altitude chamber steel structure

Abstract

The application discloses an optimized altitude cabin steel structure, which comprises an external steel shell structure and an internal support structure, the external steel shell structure is arranged outside the altitude cabin and comprises an external reinforcing steel structure, the internal support structure comprises at least one internal reinforcing structure arranged in a guide layer of the altitude cabin in a width direction or a length direction of the altitude cabin, each internal reinforcing structure comprises a horizontal reinforcing structure and a plurality of vertical reinforcing structures, two ends of the horizontal reinforcing structure are fixedly connected to the external reinforcing steel structures of opposite two side walls of the altitude cabin respectively, and each of the vertical reinforcing structures is arranged perpendicularly relative to the horizontal reinforcing structure, one end of the vertical reinforcing structure is fixedly connected to the horizontal reinforcing structure, and the other end is fixedly connected to the external reinforcing steel structure of a top wall of the altitude cabin. The application reduces the deformation amount of cabin steel plates and reduces the steel consumption.

Description

Technical Field

[0001] This invention relates to the field of testing laboratory technology, and in particular to an optimized steel structure for an altitude cabin. Background Technology

[0002] An automotive high-altitude environment simulation chamber, or simply an altitude chamber, is a laboratory used for whole-vehicle testing. It can simulate environmental parameters such as indoor temperature, humidity, altitude, and pressure. In conjunction with a chassis dynamometer and a frontal fan, it can simulate various driving conditions of a vehicle on actual roads. This allows for a comprehensive simulation of a vehicle's driving conditions in outdoor environments (including extreme weather conditions) within the laboratory. It can meet the needs of whole-vehicle performance testing under national, European, American, and Japanese standards, providing R&D and verification testing conditions for vehicle manufacturers, automotive testing units, or automotive parts manufacturers. It can efficiently complete vehicle testing and is unaffected by external weather conditions, climate, region, or terrain.

[0003] Unlike conventional environmental chambers, altitude chambers need to simulate environmental parameters such as air pressure at different altitudes. The chamber shell bears a greater load, especially when simulating environmental conditions such as high altitude and low air pressure. The entire chamber will be subjected to negative pressure, which will cause the environmental chamber to deform.

[0004] Figure 1 This diagram shows the layout of a conventional altitude chamber in existing technology. The entire altitude chamber consists of a steel shell structure 1, an insulation structure 2, an air conditioning unit 3, a flow guide layer 4, a test vehicle 5, and a main door 6. Air inside the altitude chamber is treated with heat and humidity by the air conditioning unit 3, then blown towards the test vehicle 5 by a frontal fan, and finally returns to the flow guide layer 4, completing air circulation. Hollow arrows indicate the direction of air circulation.

[0005] The pressure-resistant structure of the altitude chamber is mainly the outer steel shell structure 1. A certain gap 7 is left between the insulation structure 2 and the outer steel shell structure 1 to balance the pressure difference between the inside and outside of the insulation structure 2 during low-pressure tests, ensuring that the insulation structure 2 is not stressed. However, the entire outer steel shell structure 1 is prone to deformation due to the internal and external pressure difference. To simulate the highest altitude (maximum pressure difference), the outer steel shell structure 1 of the altitude chamber must have a sufficiently strong bending resistance structure. The outer steel shell structure 1 is mainly composed of a pressure-bearing steel plate and an external reinforcing steel structure 8. The external reinforcing steel structure 8 is welded to the outside of the pressure-bearing steel plate. To improve the bending moment resistance and reduce the deformation of the steel shell under high pressure difference, the external reinforcing steel structure 8 needs to have a very high bending resistance structure, such as I-beams.

[0006] This conventional approach consumes a large amount of materials and is costly. However, the air duct of the guide layer 4 is suspended from the top plate, and its weight is borne by the external reinforcing steel structure 8 at the top. In order to reduce the deflection of the external reinforcing steel structure 8 at the top caused by pressure and gravitational torque, the bending modulus of the external reinforcing steel structure 8 at the top needs to be increased, and the steel structure needs to be reinforced more.

[0007] Existing steel structure designs exhibit significant hull deformation under low-pressure conditions in environmental chambers, which is detrimental to the long service life of the chamber. Increasing the steel grade or the density of steel arrangement can improve bending moment resistance, but this requires a large amount of material and is costly.

[0008] Therefore, those skilled in the art are dedicated to developing an optimized steel structure for the altitude cabin to overcome the aforementioned problems. Summary of the Invention

[0009] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is how to reduce the deformation of the cabin steel plate and reduce the amount of steel consumption.

[0010] To achieve the above objectives, the present invention provides an optimized steel structure for an altitude cabin, comprising an external steel shell structure and an internal support structure. The external steel shell structure is disposed outside the altitude cabin and includes an external reinforcing steel structure. The internal support structure includes at least one internal reinforcing structure disposed in the airflow guide layer of the altitude cabin in the width or length direction. Each internal reinforcing structure includes one horizontal reinforcing structure and multiple vertical reinforcing structures. The two ends of the horizontal reinforcing structure are respectively fixedly connected to the external reinforcing steel structure on two opposite side walls of the altitude cabin. Each of the vertical reinforcing structures is perpendicular to the horizontal reinforcing structure, with one end of each vertical reinforcing structure fixedly vertically connected to the horizontal reinforcing structure and the other end fixedly connected to the external reinforcing steel structure on the top wall of the altitude cabin.

[0011] Furthermore, the at least one internal reinforcing structure comprises a plurality of parallel and spaced-apart internal reinforcing structures.

[0012] Furthermore, the at least one internal reinforcement structure includes an internal reinforcement structure arranged along the centerline of the width or length direction of the altitude compartment.

[0013] Furthermore, the internal reinforcing structure is a frame structure.

[0014] Furthermore, the internal reinforcing structure is a truss structure.

[0015] Furthermore, the internal reinforcing structure is connected to the external reinforcing steel structure by welding.

[0016] Furthermore, the internal reinforcing structure is connected to the external reinforcing steel structure by bolts.

[0017] Furthermore, a heat insulation structure is provided at the connection between the internal reinforcing structure and the external reinforcing steel structure.

[0018] Furthermore, the internal reinforcing structure employs an insulating structure to isolate it from the high and low temperatures inside the altitude cabin.

[0019] The beneficial effects of this invention are: it can reduce the deformation of the steel plate and reduce the amount of steel consumed; by means of the flow guide layer, a support structure is established inside the steel shell; since the internal support structure has a better compressive strength than the external support structure under negative pressure conditions, the material used for the external steel structure and the overall steel structure is greatly reduced, the structural strength of the entire cabin is increased, and the deflection of the steel shell is reduced.

[0020] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0021] Figure 1 This is a structural diagram of a conventional altitude chamber based on existing technology;

[0022] Figure 2 This is a schematic diagram of a preferred embodiment of the present invention.

[0023] Among them, 1-external steel shell structure, 2-thermal insulation structure, 3-air conditioning box, 4-guide layer, 5-test vehicle, 6-cabin door, 7-gap, 8-external reinforcing steel structure, 9-horizontal reinforcing structure, 10-vertical reinforcing structure. Detailed Implementation

[0024] The following description, with reference to the accompanying drawings, illustrates several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0025] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings. Example

[0026] like Figure 2 As shown, in this embodiment, an internal support structure is established within the altitude chamber using the flow guide layer 4. This internal support structure includes at least one internal reinforcing structure arranged along the centerline of the width or length direction of the altitude chamber. The internal reinforcing structure comprises a horizontal reinforcing structure 9 and a vertical reinforcing structure 10, which can reduce the span of the steel plate support structure of the outer steel shell structure 1, thereby reducing the span of the outer steel shell structure 1. Therefore, it reduces the deformation of the outer steel shell structure 1 under the same external reinforcing steel structure 8 (e.g., I-beams), ultimately saving on the external reinforcing steel structure 8 and the total amount of steel used.

[0027] The internal reinforcement structure can be a frame structure or a truss structure.

[0028] The internal reinforcing structure can be connected to the external reinforcing steel structure 8 of the external steel shell structure 1 by welding or bolting.

[0029] In some embodiments, an insulation structure may be provided at the connection between the internal reinforcing structure and the external reinforcing steel structure 8 to prevent cold or heat from being transferred to the external reinforcing steel structure 8 and to reduce the deformation of the external reinforcing steel structure 8 under temperature changes.

[0030] Preferably, the internal reinforcing structure is made of a material with low thermal deformation and high structural strength.

[0031] In some embodiments, to reduce thermal deformation, the internal reinforcing structure may also employ an insulating structure to isolate it from the high and low temperatures inside the altitude cabin.

[0032] Compared to existing technologies, this internal reinforcement structure can reduce the span between structures, thereby reducing the deformation of the steel shell of the high-altitude cabin, while also reducing steel consumption and achieving cost savings.

[0033] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An optimized steel structure for an altitude cabin, characterized in that, The system includes an external steel shell structure and an internal support structure. The external steel shell structure is located outside the altitude chamber and includes an external reinforcing steel structure. The internal support structure includes at least one internal reinforcing structure disposed in the airflow guide layer of the altitude chamber in the width or length direction. Each internal reinforcing structure includes one horizontal reinforcing structure and multiple vertical reinforcing structures. The two ends of the horizontal reinforcing structure are respectively fixedly connected to the external reinforcing steel structure on two opposite side walls of the altitude chamber. Each of the vertical reinforcing structures is perpendicular to the horizontal reinforcing structure, with one end fixedly vertically connected to the horizontal reinforcing structure and the other end fixedly connected to the external reinforcing steel structure on the top wall of the altitude chamber. The at least one internal reinforcing structure includes multiple parallel and spaced-apart internal reinforcing structures. A heat insulation structure is provided at the connection between the internal reinforcing structure and the external reinforcing steel structure.

2. The optimized altitude cabin steel structure as described in claim 1, characterized in that, The at least one internal reinforcement structure includes an internal reinforcement structure arranged along the centerline of the width or length direction of the altitude compartment.

3. The optimized altitude cabin steel structure as described in claim 1, characterized in that, The internal reinforcement structure is a frame structure.

4. The optimized altitude cabin steel structure as described in claim 1, characterized in that, The internal reinforcement structure is a truss structure.

5. The optimized altitude cabin steel structure as described in claim 1, characterized in that, The internal reinforcing structure is connected to the external reinforcing steel structure by welding.

6. The optimized altitude cabin steel structure as described in claim 1, characterized in that, The internal reinforcing structure is connected to the external reinforcing steel structure by bolts.

7. The optimized altitude cabin steel structure as described in claim 1, characterized in that, The internal reinforcement structure employs an insulation structure to isolate it from the high and low temperatures inside the altitude cabin.

Images