CN115060450A - Large-scale mail steamer chimney limit wind pressure load loading device - Google Patents
Large-scale mail steamer chimney limit wind pressure load loading device Download PDFInfo
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- CN115060450A CN115060450A CN202210548234.4A CN202210548234A CN115060450A CN 115060450 A CN115060450 A CN 115060450A CN 202210548234 A CN202210548234 A CN 202210548234A CN 115060450 A CN115060450 A CN 115060450A
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention relates to a large-scale mail carrier chimney limit wind pressure load loading device, comprising a chimney test piece, a loading module, a boundary supporting module and a measuring module; the loading module comprises a wind pressure loading device and a shaft pressure loading device, the wind pressure loading device comprises a support fixedly arranged on the side surface of a chimney test piece, a first longitudinal loader is arranged on the side surface of the support, the first longitudinal loader is fixedly arranged on an original oil top support, and the original oil top support is fixedly arranged on the side surface of an oil top cushion block; the axial compression loading device comprises a supporting plate fixedly arranged at the lower part of the chimney test piece, a sliding block is arranged on the inner side of the supporting plate, a second longitudinal loader is arranged on the side face of the sliding block, and the second longitudinal loader is fixedly arranged on the second cross beam through an oil supplementing top support. The invention can realize the compression of large load by synchronously loading the two groups of loading systems, and can change the loading proportion by changing the number of the oil tops in each group of loading systems.
Description
Technical Field
The invention relates to the technical field of large-scale tests of hull structures, in particular to a large-scale mail steamer chimney ultimate wind pressure load loading device.
Background
The chimney is used as a structure with an important position in the superstructure of a large-scale cruise ship, and is subjected to complex load conditions in the actual operation process of the cruise ship, so that the study on the collapse characteristic of the chimney is always a difficult problem in the design and construction process of the cruise ship, but the ship structure is complex and huge, the huge cost of a real ship test is high, and the implementation is also complex. Therefore, the similar model test becomes the most effective method for ship structure damage failure characteristic analysis and safety evaluation.
The existing large-scale passenger liner chimney limit wind pressure load loading technology has certain achievements, the wind pressure load in reality is simulated mainly through a wind tunnel experiment method, but for a large-scale chimney model, the born wind pressure load generally exceeds the maximum load amplitude value provided by a wind tunnel laboratory. If the model scale is too small, the bearing characteristics and failure characteristics of the actual chimney are difficult to accurately reflect, and the structure is influenced by a large scale effect on geometric nonlinearity and material nonlinearity. Therefore, the study on the collapse characteristic of the large chimney is difficult to realize through a wind tunnel experiment and the cost is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a large-scale mail carrier chimney ultimate wind pressure load loading device which can realize compression of large load and change the loading proportion by changing the number of oil tops in each group of loading systems.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a large-scale mail carrier chimney limit wind pressure load loading device, which comprises a chimney test piece, a loading module, a boundary supporting module and a measuring module;
the loading module comprises a wind pressure loading device and a shaft pressure loading device, the wind pressure loading device comprises a support fixedly arranged on the side surface of a chimney test piece, a first longitudinal loader is arranged on the side surface of the support, the first longitudinal loader is fixedly arranged on an original oil top support, and the original oil top support is fixedly arranged on the side surface of an oil top cushion block; the axial compression loading device comprises a supporting plate fixedly arranged at the lower part of a chimney test piece, a sliding block is arranged on the inner side of the supporting plate, a second longitudinal loader is arranged on the side surface of the sliding block, and the second longitudinal loader is fixedly arranged on a second cross beam through an oil supplementing top support;
the boundary supporting module comprises a first plate clamp and a second plate clamp which are arranged on the left side and the right side of a supporting plate and used for fixing a chimney test piece, and a first cross beam which is arranged at the front end of the supporting plate and used for fixing the chimney test piece, wherein a first door clamp is fixedly arranged on the outer side of the first plate clamp, a second door clamp is arranged on the outer side of the second plate clamp, a first slide way and a second slide way are arranged at the left end and the right end of a sliding block, a cross beam device is arranged on the side surface of an oil top cushion block, a first support column and a second support column are arranged on the two sides of the cross beam device, a fifth base is arranged at the bottom of the first support column, a sixth base is arranged at the bottom of the second support column, a first stretching beam is obliquely arranged on the first door clamp and the first support column, and a second stretching beam is obliquely arranged on the second door clamp and the second support column;
the measuring module comprises a strain sensor, a displacement sensor and a pressure sensing device. The strain sensor and the displacement sensor are strain gauges, the strain sensors are arranged on a chimney test piece, the displacement sensors are respectively arranged at the front end, the rear end and the side face of the supporting piece, and the pressure sensing device is respectively connected with the first longitudinal loader and the second longitudinal loader.
According to the scheme, the pressure sensing device comprises a pressure applying device, the pressure applying device is respectively connected with the oil top measuring device, the first longitudinal loader and the second longitudinal loader, the pressure applying device synchronously applies equal pressure to the oil top measuring device, the first longitudinal loader and the second longitudinal loader during working, the oil top measuring device comprises an outer frame and a pressure sensor arranged at the top of the outer frame, and the oil top measuring device is arranged at the lower part of the pressure sensor.
According to the scheme, the boundary supporting module further comprises a first square cushion block and a second square cushion block which are separately arranged at the bottom of the first door clamp, and a third square cushion block and a fourth square cushion block which are separately arranged at the bottom of the second door clamp; a first base is arranged at the bottom of the first square cushion block, a second base is arranged at the bottom of the second square cushion block, a third base is arranged at the bottom of the third square cushion block, and a fourth base is arranged at the bottom of the fourth square cushion block; the upper end and the lower end between the first door clamp and the first supporting column are respectively provided with a first triangular plate and a second triangular plate, and the upper end and the lower end between the second door clamp and the second supporting column are respectively provided with a third triangular plate and a fourth triangular plate.
According to the scheme, the beam device comprises a third beam, a fourth beam and a fifth beam which are fixedly connected with each other, and the oil top cushion block comprises four pillars which are fixedly connected.
According to the scheme, the first longitudinal loader and the second longitudinal loader are hydraulic oil jacks for providing axial pressure.
According to the scheme, the strain sensor is used for measuring stress of a measuring point, the displacement sensor is used for measuring displacement of the measuring point, and the pressure sensor is used for measuring pressure of the first longitudinal loader and the second longitudinal loader.
The large-scale mail steamer chimney limit wind pressure load loading device has the following beneficial effects:
1. the invention has great improvement on hardware, and can realize the simulation of the wind pressure load with large amplitude by dispersing the wind pressure load into node force through the bracket;
2. the plate clamps on the two transverse sides of the chimney test piece can simulate the boundary conditions of fixed support and simple support, and can simulate the complex boundary conditions borne by the chimney;
3. the invention simulates the simultaneous loading of any loading proportion by changing the number of the loading oil tops in the two groups of loading systems;
4. the invention simulates the complex load working condition and large-scale wind pressure borne by the chimney through different combinations of any load proportion and the complex boundary support of the hull structure.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic left-view structural diagram of a large-scale passenger liner chimney limit wind pressure load loading device of the present invention;
FIG. 2 is a schematic diagram of a right-side view structure of a large-scale cruise ship chimney limit wind pressure load loading device according to the present invention;
FIG. 3 is a schematic structural view of a boundary support module of the present invention;
FIG. 4 is a schematic diagram of the loading module of the present invention;
FIG. 5 is a schematic structural diagram of a boundary support module of the present invention;
FIG. 6 is a schematic diagram of the original oil top support of the present invention;
FIG. 7 is a schematic structural diagram of a first base according to the present invention;
FIG. 8 is a schematic structural view of a stent of the present invention;
FIG. 9 is a schematic view of the structure of a restricting slider and a second slider according to the present invention;
FIG. 10 is a schematic structural view of a pressure sensor of the present invention;
fig. 11 is a schematic diagram of the position where the displacement sensor is disposed.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1-11, the loading device for limiting wind pressure load of large-scale passenger liner chimney of the invention comprises a chimney test piece, a loading module, a boundary supporting module and a measuring module.
The loading module comprises a wind pressure loading device and a shaft pressure loading device. The wind pressure loading device comprises a support 10 fixedly arranged on the side face of a chimney test piece 1, a first longitudinal loader 11 is arranged on the side face of the support 10, the first longitudinal loader 11 is fixedly arranged on an original oil top support 12, and the original oil top support 12 is fixedly arranged on the side face of an oil top cushion block 32. The axial compression loading device comprises a supporting plate 13 fixedly arranged at the lower part of the chimney test piece 1, a sliding block 7 is arranged at the inner side of the supporting plate 13, a second longitudinal loader 14 is arranged at the side surface of the sliding block 7, and the second longitudinal loader 14 is fixedly arranged on a second cross beam 33 through an oil supplementing top support 15; the first and second longitudinal loader 11, 14 are hydraulic oil rams that provide axial pressure.
The boundary supporting module comprises a first plate clamp 2 and a second plate clamp 3 which are arranged on the left side and the right side of a supporting plate 13 and used for fixing a chimney test piece 1, a first cross beam 4 which is arranged at the front end of the supporting plate 13 and used for fixing the chimney test piece 1 is arranged, a first door clamp 5 is fixedly arranged on the outer side of the first plate clamp 2, a second door clamp 6 is arranged on the outer side of the second plate clamp 3, a first slide way 8 and a second slide way 9 are arranged at the left end and the right end of a sliding block 7, a cross beam device is arranged on the side face of an oil top cushion block 32, the cross beam device comprises a third cross beam 34, a fourth cross beam 35 and a fifth cross beam 36 which are fixedly connected with each other, and the oil top cushion block 32 is composed of four pillars which are fixedly connected with each other. A first pillar 37 and a second pillar 38 are arranged on two sides of the beam device, a fifth base 30 is arranged at the bottom of the first pillar 37, a sixth base 31 is arranged at the bottom of the second pillar 38, a first stretching beam 24 is obliquely arranged on the first door clamp 5 and the first pillar 37, and a second stretching beam 25 is obliquely arranged on the second door clamp 6 and the second pillar 38; the boundary support module further comprises a first square cushion block 16 and a second square cushion block 18 which are separately arranged at the bottom of the first door clamp 5, and a third square cushion block 20 and a fourth square cushion block 22 which are separately arranged at the bottom of the second door clamp 6; a first base 17 is arranged at the bottom of the first square cushion block 16, a second base 19 is arranged at the bottom of the second square cushion block 18, a third base 21 is arranged at the bottom of the third square cushion block 20, and a fourth base 23 is arranged at the bottom of the fourth square cushion block 22; a first triangular plate 26 and a second triangular plate 27 are respectively arranged at the upper end and the lower end between the first door clamp 5 and the first supporting column 37, and a third triangular plate 28 and a fourth triangular plate 29 are respectively arranged at the upper end and the lower end between the second door clamp 6 and the second supporting column 38.
The measuring module comprises a strain sensor, a displacement sensor and a pressure sensing device. The strain sensor is a strain gauge attached to the chimney test piece 1, and the specific position of the strain sensor is arranged according to a numerical simulation result; the displacement sensors are strain gauges attached to the support member 13, and the displacement sensors are respectively disposed at the front end, the rear end, and the side surfaces of the lower portion of the support member 13. As shown in fig. 11, the placement of the displacement sensors is at A, B, C, D four points. The strain sensor is used for measuring the stress of a measuring point, the displacement sensor is used for measuring the displacement of the measuring point, and the pressure sensor is used for measuring the pressure data of the oil top. The pressure sensing device comprises a pressing device 39, the pressing device 39 is respectively connected with the measuring oil top device 40, the first longitudinal loader 11 and the second longitudinal loader 14, when the pressing device 39 works, the same pressure is synchronously applied to the measuring oil top device 40, the first longitudinal loader 11 and the second longitudinal loader 14, the measuring oil top device 40 comprises an outer frame 401 and a pressure sensor 402 arranged at the top of the outer frame, and the measuring oil top 403 is arranged at the lower part of the pressure sensor. When the first longitudinal loader 11 and the second longitudinal loader 14 apply pressure to the chimney test piece, the chimney test piece tilts and deforms along with the direction of the pressure.
The invention comprises a boundary supporting module, a loading module and a measuring module. The boundary supporting module comprises a first plate clamp 2 and a second plate clamp 3 which are used for fixing the two transverse sides of the chimney test piece 1, and a first cross beam 4 which is used for fixing one longitudinal side of the chimney test piece 1; the chimney test piece structure is characterized by further comprising a first door clamp 5 arranged on the outer side of the first plate clamp 2 and used for fixing the first plate clamp 2, a second door clamp 6 arranged on the second plate clamp 3 and used for fixing the second plate clamp 3, a sliding block 7 is transversely arranged on the inner side of the chimney test piece 1, a first slide way 8 and a second slide way 9 limiting the movement of the sliding block 7 are arranged at two ends of the sliding block 7, the first slide way 8 is provided with a longitudinal pulley block, a longitudinal pulley block is arranged inside the second slide way 9, and the sliding block 7 can longitudinally move in the first slide way 8 and the second slide way 9. The bottom of the one end of the first door clamp 5 is provided with a first square cushion block 16 and a first base 17 which are used for supporting, the bottom of the other end of the first door clamp 5 is provided with a second square cushion block 18 and a second base 19 which are used for supporting, the bottom of the one end of the second door clamp 6 is provided with a third square cushion block 20 and a third base 21 which are used for supporting, and the bottom of the other end of the second door clamp 6 is provided with a fourth square cushion block 22 and a fourth base 23 which are used for supporting.
A first tensile beam 24 for additional reinforcement is arranged between the first door clamp 5 and the first pillar 37; a second tension beam 25 for additional reinforcement is arranged between the second door clip 6 and the second pillar 38; the upper and lower end parts of the first door clamp 5 and the first support 37 are provided with a first triangular plate 26 and a second triangular plate 27 for supporting the first door clamp 5; the upper and lower ends of the second door clip 6 and the second pillar 38 are provided with a third triangle 28 and a fourth triangle 29 for supporting the second door clip 6. The base is fixedly connected with the square cushion block through the groove. The first door clamp 5, the second door clamp 6, the first pillar 37 and the second pillar 38 simultaneously form a stress self-balancing system through the first stretching beam 24, the second stretching beam 25, the first triangle 26, the second triangle 27, the third triangle 28 and the fourth triangle 29, and the first pillar 37 and the second pillar 38 are prevented from rolling.
The outer side of the oil top cushion block 32 is provided with a third beam 34, a fourth beam 35 and a fifth beam 36 for fixing the oil top cushion block 32, two ends of the third beam 34, the fourth beam 35 and the fifth beam 36 are provided with a first support column 37 and a second support column 38 for supporting, the bottom of the first support column 37 is provided with a fifth base 30 for supporting the first support column 37, and the bottom of the second support column 38 is provided with a sixth base 31 for supporting the second support column 38.
In a preferred embodiment of the present invention, the loading module includes a wind pressure loading device and a shaft pressure loading device. The wind pressure loading device comprises a support 10 arranged on the inner side of a chimney test piece 1, a first longitudinal loader 11 and an original oil top support 12, wherein the support 10 is used for dispersing wind pressure load into node force, the first longitudinal loader 11 is used for tightly supporting the support 10, and the original oil top support 12 is used for fixing the first longitudinal loader 11. The first longitudinal loader 11 is fixed with the oil top support 12 through a groove. The axial compression loading device comprises a sliding block 7, a second longitudinal loader 14 and a supplementary oil top support 15, wherein the sliding block 7 is used for fixing a supporting plate 13 of the chimney test piece 1, the second longitudinal loader 14 is used for tightly supporting the sliding block 7, and the supplementary oil top support 15 is used for fixing the second longitudinal loader 14. The second longitudinal loader 14 is fixedly connected with the oil supplementing top support 15 through a groove. An oil top cushion block 32 for fixing the oil top support 12 is arranged on the inner side of the oil top support 12; the inside of the supplementary oil top support 15 is provided with a second cross beam 33 for fixing the supplementary oil top support 15. The second beam 33 is freely movable in the longitudinal direction. The first and second longitudinal loaders 11 and 14 are oil-loaded jacks, also called jacks, which are equipped with proportional valves to adjust the load.
In the preferred embodiment of the invention, the measuring module comprises a strain sensor and a displacement sensor, the strain sensor is attached to the chimney test piece 1 and used for measuring the strain of the position of a measuring point of the chimney test piece 1, and the specific measuring position is determined according to a numerical simulation result; the displacement sensor is attached to the support piece 13 and used for measuring the displacement of the position of the measuring point of the chimney test piece 1, the specific measuring positions are A, B, C, D four points in fig. 11 and used for measuring the displacement of the chimney test piece 1, the displacement sensor is a dial indicator, when the displacement sensor is used, the dial indicator is connected to a corresponding structure, the dial indicator records the displacement of the corresponding structure, and the displacement data is fed back to the control system in real time, so that real-time monitoring is achieved. The measuring module also comprises a pressure sensing device used for measuring the pressure of the loaded oil. The support plate 13 is used for simulating a deck at the bottom of a chimney in an actual ship and is used for supporting a chimney test piece 1.
A control system for synchronous loading is developed through software, the longitudinal maximum load is 270T, four dial indicators are arranged to monitor the displacement change in the loading process, and a measuring point A, B, D can measure and record the axial displacement of a test model and is used for observing the axial deformation of the model structure caused by the axial load; and the measuring point C can measure and record the displacement change of the deck plate frame in the direction vertical to the deck plate, and is used for observing the out-of-plane deformation of the deck plate caused by the side inclination of the chimney. The invention is provided with a plurality of groups of strain gauges, and the stress change and the gradual failure sequence of the model can be seen through the monitoring result of the strain gauges in the model test process, so that the failure mode of the model can be obtained.
The loading steps of the large-scale cruise ship chimney limit wind pressure load are as follows:
s1, pasting a strain gauge on a key position to be monitored of the chimney test piece 1, and connecting the strain gauge with the strain gauge;
s2, placing the chimney test piece 1 on a support plate, and adjusting the axis position to enable the chimney test piece 1 and the support 10 to be on the same central axis;
s3, fixing the periphery of the supporting plate by using the first plate clamp 2, the second plate clamp 3, the first beam 4 and the sliding block 7;
s4, enabling the first longitudinal loader 11 to be close to the stressed end of the support 10 through the control system to achieve preloading, and performing multiple times of pre-loading/unloading within the elastic range of the chimney test piece 1 so as to eliminate residual stress;
s5, connecting the displacement dial indicators to preset positions respectively;
s6, on the basis of a static load test, utilizing the first longitudinal loader 11 to gradually apply horizontal pressure to the loading end of the chimney test piece 1, gradually increasing wind pressure load by a certain load increment until the chimney test piece 1 generates obvious backward tilting damage deformation, and simultaneously recording the displacement and strain of a load increment model in each step in the loading process;
s7, on the basis of a static load test, a second longitudinal loader 14 is utilized to gradually apply horizontal pressure to the loading end of the lower supporting plate of the chimney test piece 1, axial load is gradually increased by a certain load increment until the chimney test piece 1 is subjected to obvious destructive deformation, and meanwhile, the displacement and the strain of a load increment model in each step in the loading process are recorded;
and S8, on the basis of the step S6 and the step S7, carrying out the simulation of the complex load by adjusting different loading ratios of the wind pressure loading device and the axial pressure loading device.
In the above steps, the pressure of the loading oil tops in the respective loading devices is monitored by the pressure sensing devices.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. A large-scale mail steamer chimney limit wind pressure load loading device comprises a chimney test piece, and is characterized by also comprising a loading module, a boundary supporting module and a measuring module;
the loading module comprises a wind pressure loading device and a shaft pressure loading device, the wind pressure loading device comprises a support fixedly arranged on the side surface of a chimney test piece, a first longitudinal loader is arranged on the side surface of the support, the first longitudinal loader is fixedly arranged on an original oil top support, and the original oil top support is fixedly arranged on the side surface of an oil top cushion block; the axial compression loading device comprises a supporting plate fixedly arranged at the lower part of a chimney test piece, a sliding block is arranged on the inner side of the supporting plate, a second longitudinal loader is arranged on the side surface of the sliding block, and the second longitudinal loader is fixedly arranged on a second cross beam through an oil supplementing top support;
the boundary supporting module comprises a first plate clamp and a second plate clamp which are arranged on the left side and the right side of a supporting plate and used for fixing a chimney test piece, and a first cross beam which is arranged at the front end of the supporting plate and used for fixing the chimney test piece, wherein a first door clamp is fixedly arranged on the outer side of the first plate clamp, a second door clamp is arranged on the outer side of the second plate clamp, a first slide way and a second slide way are arranged at the left end and the right end of a sliding block, a cross beam device is arranged on the side surface of an oil top cushion block, a first support column and a second support column are arranged on the two sides of the cross beam device, a fifth base is arranged at the bottom of the first support column, a sixth base is arranged at the bottom of the second support column, a first stretching beam is obliquely arranged on the first door clamp and the first support column, and a second stretching beam is obliquely arranged on the second door clamp and the second support column;
the measuring module comprises a strain sensor, a displacement sensor and a pressure sensing device. The strain sensor and the displacement sensor are strain gauges, the strain sensors are arranged on a chimney test piece, the displacement sensors are respectively arranged at the front end, the rear end and the side face of the supporting piece, and the pressure sensing device is respectively connected with the first longitudinal loader and the second longitudinal loader.
2. The large-scale mail steamer chimney limit wind pressure load loading device of claim 1, wherein the pressure sensing device comprises a pressure applying device, the pressure applying device is respectively connected with the measuring oil jack, the first longitudinal loader and the second longitudinal loader, the pressure applying device synchronously applies equal pressure to the measuring oil jack, the first longitudinal loader and the second longitudinal loader during operation, the measuring oil jack comprises an outer frame and a pressure sensor arranged at the top of the outer frame, and the measuring oil jack is arranged at the lower part of the pressure sensor.
3. The large scale mail carrier chimney limit wind pressure load apparatus of claim 1, wherein the boundary support module further comprises a first square pad and a second square pad separately disposed at the bottom of the first door clamp, a third square pad and a fourth square pad separately disposed at the bottom of the second door clamp; a first base is arranged at the bottom of the first square cushion block, a second base is arranged at the bottom of the second square cushion block, a third base is arranged at the bottom of the third square cushion block, and a fourth base is arranged at the bottom of the fourth square cushion block; the upper end and the lower end between the first door clamp and the first supporting column are respectively provided with a first triangular plate and a second triangular plate, and the upper end and the lower end between the second door clamp and the second supporting column are respectively provided with a third triangular plate and a fourth triangular plate.
4. A large scale mail ship chimney limit wind pressure load apparatus as set forth in claim 1, wherein said beam means comprises a third beam, a fourth beam and a fifth beam fixedly connected to each other, and said oil top pad comprises four pillars fixedly connected.
5. The large cruise ship chimney limit wind pressure load device according to claim 1, wherein the first and second longitudinal loaders are hydraulic oil jacks providing axial pressure.
6. The large scale mail carrier chimney limit wind pressure loading device according to claim 1, characterized in that the strain sensor is used to measure the stress at the measuring point, the displacement sensor is used to measure the displacement at the measuring point, and the pressure sensor is used to measure the pressure of the first longitudinal loader and the second longitudinal loader.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210548234.4A CN115060450B (en) | 2022-05-18 | 2022-05-18 | Large-scale mail wheel chimney limit wind pressure load loading device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210548234.4A CN115060450B (en) | 2022-05-18 | 2022-05-18 | Large-scale mail wheel chimney limit wind pressure load loading device |
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| CN115060450A true CN115060450A (en) | 2022-09-16 |
| CN115060450B CN115060450B (en) | 2024-09-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296237A (en) * | 2023-05-18 | 2023-06-23 | 中国航空工业集团公司哈尔滨空气动力研究所 | Vertical wind load test method for large carrier rocket in low-speed wind tunnel |
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| CN116296237B (en) * | 2023-05-18 | 2023-07-21 | 中国航空工业集团公司哈尔滨空气动力研究所 | Vertical wind load test method for large carrier rocket in low-speed wind tunnel |
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