Deep and far sea type carrier rocket marine recovery device and method

Abstract

The invention discloses an offshore recovery device and method for a deep and far sea type carrier rocket, and belongs to the technical field of rocket recovery. The offshore recovery device for the deep and far sea type carrier rocket comprises a recovery platform which can float on the sea; the stabilization water cabin is arranged in the recovery platform; and the active stabilization device comprises a plurality of stabilization pieces with certain weight, one end of each stabilization piece is arranged on the recovery platform, the other end of each stabilization piece is telescopically arranged at the bottom of the recovery platform, and the active stabilization device is used for changing the gravity center of the offshore recovery device by changing the position of the other end of each stabilization piece. The anti-rolling water cabin and the anti-rolling piece are arranged on the recycling platform, the gravity center of the whole recycling device is adjusted through the telescopic anti-rolling piece, the anti-rolling piece and the anti-rolling water cabin are combined to jointly restrain the shaking angle of the recycling platform, and the inherent frequency of a rocket can be avoided by controlling the telescopic amount of the active anti-rolling device.

Description

Technical Field

[0001] The present invention relates to the technical field of rocket recovery, and particularly to a deep-sea and far-sea carrier rocket sea recovery device and method. Background Art

[0002] The reusable technology of liquid carrier rockets is the most effective way to improve launch efficiency and reduce launch costs, and it is an inevitable trend in the development of carrier rocket technology. The so-called reuse of liquid carrier rockets refers to obtaining a complete first-stage rocket through the mode of the whole first-stage vertical landing and recovery. After recovery, it can be repaired and maintained slightly and then reused. The reuse cycle can be shortened to 3-4 weeks, and the reuse cost is low. For two-stage liquid carrier rockets, the cost of the first stage accounts for 60%-70%. The reuse of the first stage of the rocket can greatly reduce the launch cost of the rocket and significantly improve the economy. After the rocket is launched and recovered and necessary maintenance and repairs are carried out, it can perform launch missions again, reducing production costs.

[0003] To achieve the reuse of carrier rockets, rocket recovery technology uses a series of technical means to make part or all of the rocket safely return to the ground for reuse. Its application can greatly reduce the cost of space launches, improve the utilization efficiency of rockets, and provide more possibilities for future commercial space activities and deep space exploration. At the same time, the development of this technology also poses new requirements and challenges to fields such as materials science, aerospace engineering, and environmental protection. Rocket recovery technology mainly relies on the following technical paths: vertical landing technology, aerodynamic deceleration technology, and sea recovery technology.

[0004] Among them, sea recovery along the flight path of carrier rockets can give full play to the rocket's carrying capacity. First, compared with land recovery, sea recovery has high flexibility and strong maneuverability. The most suitable position can be selected according to the rocket's ballistic design, flight trajectory, and recovery conditions, thereby reducing the filling amount of the propellant in the storage tank and then improving the rocket's carrying capacity. Second, compared with land recovery, sea recovery has better safety and can avoid damage to ground facilities and personnel caused by rocket debris. Especially when the rocket needs to fly over densely populated areas, sea recovery can provide a relatively safe solution.

[0005] Sea recovery usually requires the use of special recovery vessels to provide a platform for the rocket to land. These vessels are often equipped with equipment for capturing and fixing the rocket, lacking a way to deal with complex sea conditions. Especially in the western South China Sea, affected by factors such as large sea current velocity, complex underwater conditions, low visibility, and frequent influence of cold air in winter, and the sea surface is affected by typhoon attacks or influences and seasonal winds, the sea surface has large waves, seriously affecting the six-degree-of-freedom sway of the platform, lacking effective suppression measures and unable to adjust the sway period of the platform.

[0006] It should be noted that the information disclosed in the background art section of this invention is only intended to deepen the understanding of the general background art of the present invention, and should not be regarded as an admission or any form of implication that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0007] The purpose of the present invention is to provide a deep - sea and far - sea type sea - based recovery device and method for launch vehicles, so as to solve the problem of the shaking of the sea platform.

[0008] To solve the above - mentioned technical problems, the present invention provides a deep - sea and far - sea type sea - based recovery device for launch vehicles, including:

[0009] A recovery platform 100, which can float on the sea;

[0010] A anti - rolling water tank 200, which is arranged inside the recovery platform 100;

[0011] An active anti - rolling device 300, including a number of anti - rolling members with a certain weight. One end of the anti - rolling member is arranged on the recovery platform 100, and the other end is telescopically arranged at the bottom of the recovery platform 100, and is used to change the center of gravity of the sea - based recovery device by changing the position of the other end.

[0012] Preferably, the anti - rolling member is an anti - rolling column 301. One end of the anti - rolling column 301 is fixed on the recovery platform, and the other end is telescopically arranged at the bottom of the recovery platform 100.

[0013] Preferably, a counterweight 302 is arranged at the other end of the anti - rolling column 301.

[0014] Preferably, four anti - rolling columns 301 are arranged.

[0015] Preferably, the recovery platform 100 includes a rocket landing deck 101 and a framework structure. The rocket landing deck 101 is arranged at the top of the framework structure.

[0016] Preferably, the anti - rolling water tank 200 is arranged at the bottom of the framework structure.

[0017] The present invention provides a deep - sea and far - sea type sea - based recovery method for launch vehicles, which is characterized in that the deep - sea and far - sea type sea - based recovery device as described above is adopted.

[0018] Preferably, it includes the following steps:

[0019] Step 1, navigating the deep - sea and far - sea type sea - based recovery device of the launch vehicle to a designated position;

[0020] Step 2: The anti-rolling member in the active anti-rolling device 300 extends or retracts downward to adjust the distance between the metacenter and the center of gravity of the deep-sea launch vehicle sea recovery device, and combines with the anti-rolling water tank 200 to suppress the rocking angle of the recovery platform.

[0021] Preferably, the anti-rolling member is an anti-rolling column 301. One end of the anti-rolling column 301 is fixed on the recovery platform 100, and the other end is telescopically arranged at the bottom of the recovery platform 100. A counterweight 302 is arranged at the other end of the anti-rolling column 301, and four anti-rolling columns 301 are provided.

[0022] Preferably, the recovery platform 100 includes a rocket landing deck 101 and a frame structure. The rocket landing deck 101 is arranged at the top of the frame structure, and the anti-rolling water tank 200 is arranged at the bottom of the frame structure.

[0023] In the deep-sea launch vehicle sea recovery device provided by the present invention, by arranging an anti-rolling water tank and an anti-rolling member on the recovery platform, the center of gravity of the entire recovery device is adjusted by using the telescopic anti-rolling member. The anti-rolling member and the anti-rolling water tank jointly suppress the rocking angle of the recoverable platform. By controlling the telescopic amount of the active anti-rolling device, the natural frequency of the rocket can be avoided, providing a relatively stable landing environment for the reusable launch vehicle. It can be applied to rockets with landing leg recovery, realizing high-precision vertical recovery of rockets, and having the advantages of good hydrodynamic characteristics, high reliability, and good flexibility.

[0024] The deep-sea launch vehicle sea recovery method provided by the present invention and the deep-sea launch vehicle sea recovery device provided by the present invention belong to the same inventive concept. Therefore, the deep-sea launch vehicle sea recovery method provided by the present invention has at least all the advantages of the deep-sea launch vehicle sea recovery device provided by the present invention, which will not be elaborated here. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0026] Figure 2 is an execution flowchart of an embodiment of the present invention.

[0027] In the figure,

[0028] 100 - recovery platform; 101 - rocket landing deck; 200 - anti-rolling water tank; 300 - active anti-rolling device; 301 - anti-rolling column; 302 - counterweight. Detailed Embodiments

[0029] The following further elaborates on the deep - sea and far - sea type carrier rocket sea recovery device and method proposed by the present invention in conjunction with the attached drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the attached drawings are all in a very simplified form and use non - precise scales, only for the purpose of conveniently and clearly assisting in explaining the purpose of the embodiments of the present invention. It should be understood that the drawings in the specification do not necessarily show the specific structure of the present invention in proportion, and the illustrative features used to explain certain principles of the present invention in the drawings of the specification will also adopt a slightly simplified drawing method. The specific design features disclosed herein, such as specific dimensions, directions, positions, and shapes, will be partially determined by the specific application and usage environment. Also, in the following described embodiments, sometimes the same reference numerals are used commonly between different drawings to represent the same part or parts with the same function, and the repeated description thereof is omitted. In this specification, similar reference numerals and letters are used to represent similar items. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0031] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above - mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0032] The inventors have found through research that the sea recovery technology is extremely vulnerable to sea conditions, which affects the stability of the recovery platform. There are no effective measures to suppress the six - degree - of - freedom rocking of the recovery platform, and the rocking period of the recovery platform cannot be adjusted.

[0033] The core idea of the present invention lies in setting up a anti-rolling water tank 200 and anti-rolling members on the recovery platform 100, using the retractable anti-rolling members to adjust the center of gravity of the entire recovery device, and the combination of the anti-rolling members and the anti-rolling water tank 200 jointly inhibits the rocking angle of the recoverable platform. By controlling the telescopic amount of the active anti-rolling device 300, the natural frequency of the rocket can be avoided.

[0034] Specifically, please refer to Figure 1 - Figure 2 , which is a schematic diagram of an embodiment of the present invention. As Figure 1 shown, a deep-sea and far-sea type launch vehicle sea recovery device includes:

[0035] A recovery platform 100, which can float on the sea;

[0036] An anti-rolling water tank 200, which is arranged inside the recovery platform 100;

[0037] An active anti-rolling device 300, which includes a number of anti-rolling members with a certain weight. One end of the anti-rolling member is arranged on the recovery platform 100, and the other end is telescopically arranged at the bottom of the recovery platform 100, and is used to change the center of gravity of the sea recovery device by changing the position of the other end.

[0038] As Figure 1 shown, the entire deep-sea and far-sea type launch vehicle sea recovery device is mainly composed of a recovery platform 100, an anti-rolling water tank 200 and an active anti-rolling device 300. During navigation, the anti-rolling members can be retracted into the recovery platform 100, or the anti-rolling members extend towards the top of the recovery platform 100 and are arranged above the recovery platform 100. After reaching the designated position, the anti-rolling members extend downward to increase the distance between the recovery platform 100 and the center of gravity, and combine with the anti-rolling water tank 200 to inhibit the rocking angle of the recovery platform 100. By controlling the telescopic amount of the active anti-rolling device 300, the natural frequency of the rocket can be avoided, providing a relatively stable landing environment for the reusable launch vehicle at sea, being applicable to rockets with landing leg recovery, realizing high-precision vertical recovery of the rocket, and having the advantages of good hydrodynamic characteristics, high reliability and good flexibility.

[0039] In one embodiment, the anti-rolling member is an anti-rolling column 301. One end of the anti-rolling column 301 is fixed on the recovery platform 100, and the other end is telescopically arranged at the bottom of the recovery platform 100. A counterweight 302 is arranged at the other end of the anti-rolling column 301.

[0040] The anti-rolling member can be a columnar structure, such as a hydraulic telescopic rod structure, with one end fixed on the recovery platform 100 and a counterweight 302 of a certain weight can be arranged at the other end. By telescoping the hydraulic telescopic rod, the position of the counterweight 302 is changed, which plays a role in adjusting the center of gravity of the whole device. The anti-rolling member can also be a columnar structure passing through the recovery platform 100. This columnar structure is connected to the recovery platform 100 through a connecting member. For example, the connection between the columnar structure and the connecting member is a threaded connection. Therefore, during navigation, the top end of the columnar structure can be adjusted to the top of the recovery platform 100.

[0041] In addition, the anti-rolling member can also be a chain-like structure, with a counterweight 302 of a certain weight hanging at the end of the chain-like structure. During navigation, the anti-rolling member and the counterweight 302 are stored inside the recovery platform 100. After reaching the designated position, the anti-rolling member is extended to adjust the center of gravity position of the whole device, so as to achieve high-precision vertical recovery of the rocket.

[0042] Specifically, four anti-rolling columns 301 are provided. The shape of the recovery platform 100 is, for example, Figure 1 an approximately rectangular structure as shown. Therefore, the anti-rolling columns 301 can be distributed at the four corners according to the center of gravity position of the recovery platform 100, or the position and quantity of the anti-rolling columns 301 can be adjusted according to the actual counterweight situation.

[0043] Specifically, the recovery platform 100 includes a rocket landing deck 101 and a frame structure (not shown). The rocket landing deck 101 is arranged on the top of the frame structure. The anti-rolling water tank 200 is arranged at the bottom of the frame structure. The anti-rolling water tank 200 is arranged at the bottom layer of the recovery platform 100, the middle layer is the frame structure, and the top layer is the rocket landing deck 101. In the active anti-rolling device 300, in addition to arranging the anti-rolling columns 301, an adjustment system is also arranged to control the telescopic amount of the anti-rolling member.

[0044] In one implementation, the frame structure of the recovery platform 100 is made of steel, for example, and can withstand a vertical load of up to 300t of the rocket, a lateral load of up to 50t, and a moment of up to 30000 kN·m.

[0045] Based on the same technical concept, the present disclosure also provides a method for recovering a deep-sea and far-sea launch vehicle at sea, using the deep-sea and far-sea launch vehicle sea recovery device as described above. As Figure 2 shown, a method for recovering a deep-sea and far-sea launch vehicle at sea further includes the following steps:

[0046] Step 1, navigating the deep-sea and far-sea launch vehicle sea recovery device to a designated position;

[0047] Step 2: The anti-rolling member in the active anti-rolling device 300 extends downward or shortens, adjusting the distance between the metacenter and the center of gravity of the deep-sea and far-sea type launch vehicle sea recovery device, and combining with the anti-rolling water tank 200 to suppress the rocking angle of the recovery platform 100.

[0048] The entire deep-sea and far-sea type launch vehicle sea recovery device mainly consists of a recovery platform 100, an anti-rolling water tank 200, and an active anti-rolling device 300. The anti-rolling member is an anti-rolling column 301. One end of the anti-rolling column 301 is fixed on the recovery platform 100, and the other end is telescopically arranged at the bottom of the recovery platform 100. A counterweight 302 is arranged at the other end of the anti-rolling column 301. Four anti-rolling columns 301 are provided.

[0049] Among them, the recovery platform 100 includes a rocket landing deck 101 and a skeleton structure (not shown). The rocket landing deck 101 is arranged at the top of the skeleton structure. The anti-rolling water tank 200 is arranged at the bottom of the skeleton structure.

[0050] During navigation, the anti-rolling member can be retracted into the recovery platform 100, or the anti-rolling member extends to the top of the recovery platform 100 and is arranged above the recovery platform 100. After reaching the designated position, the anti-rolling member extends downward, increasing the distance between the recovery platform 100 and the center of gravity, and combining with the anti-rolling water tank 200 to suppress the rocking angle of the recovery platform 100. By controlling the telescopic amount of the active anti-rolling device 300, the natural frequency of the rocket can be avoided.

[0051] The anti-rolling member can be a columnar structure, such as a hydraulic telescopic rod structure. One end is fixed on the recovery platform 100, and a counterweight 302 with a certain weight can be arranged at the other end. By telescoping the hydraulic telescopic rod, the position of the counterweight 302 is changed, playing a role in adjusting the center of gravity of the entire device. The anti-rolling member can also be a columnar structure penetrating the recovery platform 100. This columnar structure is connected to the recovery platform 100 through a connecting member. For example, the columnar structure and the connecting member are threadedly connected. Therefore, during navigation, the top end of the columnar structure can be adjusted to the top of the recovery platform 100. In addition, the anti-rolling member can also be a chain-like structure, with a counterweight 302 hanging at the end of the chain-like structure. During navigation, the anti-rolling member and the counterweight 302 are retracted into the recovery platform 100. After reaching the designated position, the anti-rolling member is extended to adjust the center of gravity position of the entire device, so as to achieve high-precision vertical recovery of the rocket.

[0052] In summary, in the deep and far - sea type launch vehicle sea recovery device and method provided by the embodiments of the present invention, by the active anti - rolling device 300 extending and retracting downward, the distance between the metacenter and the center of gravity of the recovery platform 100 is increased, and combined with the anti - rolling water tank 200 to suppress the rocking angle of the platform. By controlling the downward telescopic amount of the active anti - rolling device 300 and adjusting the swaying period of the platform under different sea conditions, the natural frequency of the rocket can be avoided. The present invention provides a relatively stable landing environment for reusable launch vehicles at sea, can be applicable to rockets with landing leg recovery, realizes high - precision vertical recovery of rockets, and has the advantages of good hydrodynamic characteristics, high reliability, and good flexibility.

[0053] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the field of the present invention according to the above disclosure shall fall within the protection scope of the claims.

Claims

1. A deep-sea launch vehicle recovery device at sea, characterized in that: include: A recovery platform that can float on the sea; A roll reduction tank, arranged in the recovery platform; The active anti-roll device comprises a plurality of anti-roll members with a certain weight, one end of which is arranged on the recovery platform, and the other end is telescopically arranged on the bottom of the recovery platform, so as to change the center of gravity of the offshore recovery device by changing the position of the other end.

2. The deep-sea launch vehicle recovery device as claimed in claim 1, characterized in that: The anti-sway component is an anti-sway column, one end of which is fixed on the recovery platform, and the other end of which is telescopically arranged at the bottom of the recovery platform.

3. The deep-sea launch vehicle recovery device as claimed in claim 2, characterized in that: The other end of the anti-roll column is provided with a counterweight.

4. The deep-sea launch vehicle recovery device as claimed in claim 2, characterized in that: The number of anti-roll columns is four.

5. The deep-sea launch vehicle recovery device as claimed in claim 1, characterized in that: The recovery platform includes a rocket landing deck and a skeleton structure, and the rocket landing deck is arranged on the top of the skeleton structure.

6. The deep-sea launch vehicle recovery device as claimed in claim 5, characterized in that: The anti-rolling water tank is arranged at the bottom of the frame structure.

7. A method for recovering a deep-sea launch vehicle at sea, characterized in that: A deep-sea launch vehicle marine recovery device as described in any one of claims 1 to 6 is used.

8. The deep-sea launch vehicle recovery method at sea as claimed in claim 7, characterized in that: The following steps are involved: Step 1: Navigate the deep-sea launch vehicle recovery device to a designated location; Step 2: The anti-roll element in the active anti-roll device extends or shortens downward to adjust the distance between the steady center and the center of gravity of the deep-sea launch vehicle offshore recovery device, and combines with the anti-roll water tank to suppress the shaking angle of the recovery platform.

9. The deep-sea launch vehicle recovery method at sea as claimed in claim 8, characterized in that: The anti-sway component is an anti-sway column, one end of which is fixed to the recovery platform, and the other end is telescopically arranged at the bottom of the recovery platform. A counterweight is arranged at the other end of the anti-sway column, and four anti-sway columns are arranged.

10. The deep-sea launch vehicle recovery method at sea as claimed in claim 8, characterized in that: The recovery platform includes a rocket landing deck and a skeleton structure. The rocket landing deck is arranged on the top of the skeleton structure, and the anti-rolling water tank is arranged on the bottom of the skeleton structure.

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