Anti-impact mechanism, mooring rope device and mooring aerostat

Abstract

The invention discloses an anti-impact mechanism, a mooring rope device and a mooring aerostat. The anti-impact mechanism comprises a mounting component and a connecting assembly, and the mounting component is provided with a first mounting position and a second mounting position; the connecting assembly is arranged between the first mounting position and the second mounting position, the connecting assembly comprises a first connecting piece and a second connecting piece, and the first connecting piece provides connecting tension between the first mounting position and the second mounting position when not broken; the second connecting piece is stressed when the first connecting piece is broken, so that impact vibration between the first mounting position and the second mounting position is released; wherein the first mounting position and the second mounting position are used for providing mounting ports for a cable. According to the anti-impact mechanism, through the multi-stage stress design, impact vibration is slowly released through the second connecting piece after the first connecting piece is broken, and in the application scene of the mooring aerostat, the situation that an anchor point and equipment are damaged due to instantaneous overload can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tethered aerostat, in particular to an anti-impact mechanism, a cable device and a tethered aerostat. BACKGROUND

[0002] The tethered aerostat stays in the medium and low altitude for a long time, and relies on the main cable and the ground anchoring system to maintain the position. In order to ensure the survivability under the sudden meteorological load, the industry generally uses high-strength synthetic fiber cable with a safety factor of ≥10 to resist the instantaneous tension peak through the strength margin of the material itself. This "hard against hard" design idea has become the mainstream scheme of high-value load platforms such as emergency communication, disaster monitoring and low-altitude warning.

[0003] The above-mentioned rigid transmission path depending on the material strength alone has almost no energy dissipation under the impact of gust or turbulence, and the instantaneous tension of the cable directly acts on the anchor point of the boat body, the onboard precision equipment and the ground winch system, causing anchor point tearing, equipment vibration failure and anchoring vehicle structure fatigue, forcing the designer to further improve the safety factor, which in turn leads to linear increase of the cable weight, effective load occupation, and a cycle of "impact damage-increase strength-weight increase-impact more". SUMMARY

[0004] The purpose of the present application is to provide an anti-impact mechanism which can avoid damage to the anchor point and equipment due to instantaneous overload in the application scenario of the tethered aerostat by multi-stage stress design to release the impact vibration slowly by the second connecting piece after the first connecting piece breaks. Another purpose of the present application is to provide a cable device and a tethered aerostat.

[0005] To achieve the above-mentioned purpose, the present application provides an anti-impact mechanism, comprising:

[0006] A mounting component provided with a first mounting position and a second mounting position;

[0007] A connecting assembly arranged between the first mounting position and the second mounting position, the connecting assembly comprising:

[0008] A first connecting piece providing a connecting tension between the first mounting position and the second mounting position when not broken;

[0009] A second connecting piece stressed when the first connecting piece is broken to release the impact vibration between the first mounting position and the second mounting position;

[0010] Wherein, the first mounting position and the second mounting position are used to provide a mounting port for the cable.

[0011] In some embodiments, the connecting assembly further comprises:

[0012] A third connecting member, under stress when the second connecting member is deformed by stress, providing a connecting tension between the first mounting position and the second mounting position.

[0013] In some embodiments, the Young's modulus of the first connecting member is greater than the Young's modulus of the second connecting member; and / or,

[0014] The Young's modulus of the second connecting member is less than the Young's modulus of the third connecting member.

[0015] In some embodiments, the first connecting member is connected between the center of the first mounting position and the center of the second mounting position;

[0016] The third connecting member is connected between the center of the first mounting position and the center of the second mounting position.

[0017] In some embodiments, the number of the second connecting members is multiple, and the second connecting members are connected to the circumferential side of the center of the first mounting position and the circumferential side of the center of the second mounting position, so as to form a surrounding arrangement of the multiple second connecting members around the first connecting member or the third connecting member under stress.

[0018] In some embodiments, the multiple second connecting members are uniformly arranged around the first connecting member or the third connecting member under stress.

[0019] In some embodiments, the mounting component comprises:

[0020] A first mounting member provided with the first mounting position;

[0021] A second mounting member provided with the second mounting position;

[0022] The first side of the first mounting position and the second mounting position is used to provide a mounting port for the cable, and the connecting assembly is connected between the back side of the first mounting position and the back side of the second mounting position.

[0023] The application also provides a cable device, comprising a cable and the above-mentioned impact-resistant mechanism, and the cable is provided with the impact-resistant mechanism.

[0024] The application also provides a tethered aerostat, comprising an aerostat body and the above-mentioned cable device, and the aerostat body is connected to the cable device.

[0025] In some embodiments, the tethered aerostat further comprises:

[0026] A sensor arranged in the cable device, used to monitor the tension of the cable device.

[0027] A winch for controlling the cable device to achieve take-up compensation according to the monitoring data of the sensor.

[0028] With respect to the above background technology, the anti-impact mechanism provided by the present application mainly comprises a mounting component and a connecting assembly. The mounting component is provided with a first mounting position and a second mounting position. The connecting assembly is arranged between the first mounting position and the second mounting position. The connecting assembly comprises a first connecting piece and a second connecting piece. The first connecting piece provides a connecting tension between the first mounting position and the second mounting position when the first connecting piece is not broken. The second connecting piece is stressed to release the impact vibration between the first mounting position and the second mounting position when the first connecting piece is broken. The first mounting position and the second mounting position are used to provide a mounting port for a cable.

[0029] The background technology continuously raises the safety factor as the only means, resulting in a high rigidity of the cable. The instantaneous tension caused by the gust is transmitted along the high rigidity path, and the energy is almost not consumed. The anchor point, the pod and the winch system simultaneously bear impact loads exceeding 1.5 times of the rated value within milliseconds, and the risk of structural fatigue and instantaneous failure increases. Continuing to improve the safety factor also linearly increases the cross section and the weight of the cable, and the effective load is further occupied. Therefore, the root cause lies in the fact that the energy is not dissipated in the middle, rather than the insufficient strength reserve.

[0030] The present application provides two-stage force flow channels in the same mounting component: the first connecting piece maintains the high rigidity required for daily working conditions to ensure the positioning reference of the floating airship. When the gust impact causes the tension to exceed the set threshold, the first connecting piece immediately breaks, and the force flow is forced to switch to the second connecting piece. The breaking event is completed within a microsecond time scale, which is equivalent to opening an energy dissipation valve on the transmission path. Then, the second connecting piece deforms significantly due to its larger flexibility, converts the impact kinetic energy that should have reached the anchor point into elastic potential energy, and releases it in a longer period, so the tension peak is significantly flattened. Since the two-stage switching only relies on the mechanical properties of the material itself, no external energy or control signal is needed, and the mounting port continues to use the existing cable interface, the system weight and complexity are suppressed. The anchor point and the precision equipment ultimately receive the attenuated and flat load, and the instantaneous overload risk is thus eliminated.

[0031] In combination with the above structure and process description, it can be seen that the anti-impact mechanism has at least the following beneficial effects: through the multi-stage stress design, the impact vibration is slowly released by the second connecting piece after the first connecting piece breaks, which can avoid damage to the anchor point and equipment due to instantaneous overload in the application scenario of the tethered floating airship. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only constitute a part of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on the drawings provided below shall fall within the scope of the present application.

[0033] Figure 1 The schematic diagram of the anti-impact mechanism, the cable device and the tethered aerostat provided by the embodiments of the present application;

[0034] Figure 2 The schematic diagram of the anti-impact mechanism provided by the embodiments of the present application;

[0035] Figure 3 Another schematic diagram of the anti-impact mechanism provided by the embodiments of the present application;

[0036] Figure 4 The relationship diagram of the tethered aerostat provided by the embodiments of the present application.

[0037] Among them:

[0038] The anti-impact mechanism 100, the mounting component 1, the first mounting piece 11, the second mounting piece 12, the first mounting position 111, the second mounting position 121, the connecting assembly 2, the first connecting piece 21, the second connecting piece 22, the third connecting piece 23,

[0039] The cable 200,

[0040] The cable device 1000,

[0041] The aerostat main body 2000,

[0042] The sensor 3000,

[0043] The winch 4000,

[0044] The tethered aerostat 10000. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute a part of the embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative effort based on the embodiments in the present application shall fall within the scope of the present application.

[0046] In order to make the technical personnel in the technical field better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0047] Please refer toFigures 1 to 4 wherein, Figure 1 a schematic view of an anti-impact mechanism, a cable device and a tethered aerostat provided by an embodiment of the present application, Figure 2 a schematic view of an anti-impact mechanism provided by an embodiment of the present application, Figure 3 another schematic view of an anti-impact mechanism provided by an embodiment of the present application, Figure 4 a relational view of a tethered aerostat provided by an embodiment of the present application.

[0048] In a first specific implementation, the anti-impact mechanism 100 provided by an embodiment of the present application mainly comprises a mounting component 1 and a connecting assembly 2. The mounting component 1 is used to realize the connection of the anti-impact mechanism 100 with the cable 200 and the arrangement of the connecting assembly 2. The connecting assembly 2 is used to realize the force transmission and buffering of the cable 200.

[0049] Specifically, the mounting component 1 is provided with a first mounting position 111 and a second mounting position 121. The connecting assembly 2 is arranged between the first mounting position 111 and the second mounting position 121. The connecting assembly 2 comprises a first connecting piece 21 and a second connecting piece 22. The first connecting piece 21 provides a connecting tension between the first mounting position 111 and the second mounting position 121 when it is not broken. The second connecting piece 22 is stressed when the first connecting piece 21 is broken, thereby releasing the impact vibration between the first mounting position 111 and the second mounting position 121. The first mounting position 111 and the second mounting position 121 are used to provide mounting ports for the cable 200.

[0050] In a specific application scenario, as shown in Figure 1 , the anti-impact mechanism 100 is connected with the cable 200, which is manifested in that a first part of the cable 200 is connected to the first mounting position 111 of the mounting component 1, and at the same time, a second part of the cable 200 is connected to the second mounting position 121 of the mounting component 1. In combination with Figure 1 and in reference to Figure 2 , since the connecting assembly 2 is arranged between the first mounting position 111 and the second mounting position 121 of the mounting component 1, the force transmission and buffering of the cable 200 will be realized by the connecting assembly 2.

[0051] The background art takes continuously increasing the safety factor as the only means, resulting in a high rigidity of the cable. The instantaneous tension caused by the gust is transmitted along the high rigidity path, and the energy is almost not consumed. The anchor point, the pod and the hoisting system simultaneously bear the impact load exceeding 1.5 times of the rated value within milliseconds, and the risk of structural fatigue and instantaneous failure increases. Continuing to increase the safety factor also linearly increases the cable section and the self-weight, and the effective load is further occupied. Therefore, the root cause lies in that the energy is not dissipated halfway, rather than the insufficient strength reserve.

[0052] The application provides two-stage force flow channels in the same installation component 1: the first connecting piece 21 maintains high rigidity required in daily working conditions and ensures the positioning reference of the airship; when the wind impact causes the tension to exceed the set threshold, the first connecting piece 21 is immediately broken, and the force flow is forced to switch to the second connecting piece 22. The breaking event is completed within a microsecond time scale, which is equivalent to opening an energy-consuming valve in the transmission path; then the second connecting piece 22 deforms obviously due to greater flexibility, converts the impact kinetic energy originally directly transmitted to the anchor point into elastic potential energy, and releases the elastic potential energy in a long period, so that the tension peak is significantly flattened. Since the two-stage switching only depends on the mechanical properties of the material itself, no external energy or control signal is needed, and the installation port uses the existing cable interface, so that the system weight and complexity are inhibited. The anchor point and the precision equipment finally receive the attenuated and flat load, and the instantaneous overload risk is eliminated.

[0053] In combination with the above structure and process description, it can be seen that the anti-impact mechanism 100 has at least the following beneficial effects: through the multi-stage force design, the impact vibration is slowly released by the second connecting piece 22 after the first connecting piece 21 is broken, and in the application scenario of the tethered airship 10000, the anchor point and the equipment can be prevented from being damaged due to instantaneous overload.

[0054] Please continue to refer to Figure 2 In some embodiments, the connecting assembly 2 further comprises:

[0055] The third connecting piece 23 bears the force when the second connecting piece 22 is deformed by a preset amount due to force, and provides the connecting tension between the first installation position 111 and the second installation position 121.

[0056] In this embodiment, the connecting assembly 2 is additionally provided with the third connecting piece 23, which is in a progressive bearing relationship with the second connecting piece 22: when the second connecting piece 22 is deformed by a preset amount due to continuous impact, and the elastic displacement amount reaches a set threshold, the third connecting piece 23 immediately intervenes and bears the main tension, so that the first installation position 111 and the second installation position 121 continue to maintain reliable connection.

[0057] It should be noted that, due to the three-stage force design of the first connecting piece 21, the second connecting piece 22 and the third connecting piece 23 of the anti-impact mechanism 100, the cable device 1000 which combines the anti-impact mechanism 100 and the cable 200 can realize the effect of multi-stage buffering connection, and realize the optimization effect of rigidity and flexibility.

[0058] The progressive relationship makes the force flow return to the high-rigidity channel again after "rigid fracture-elastic buffering", forming a three-level energy management sequence of rigidity-flexibility-rigidity, which not only prolongs the buffering time, but also avoids the positioning reference from losing control due to excessive elongation of the second connecting piece 22. Compared with the scheme of only providing two-level elements, the embodiment can further reduce residual peaks through the secondary "bottom" bearing of the third connecting piece 23, and ensure that the anchor point and the precision equipment still receive the attenuated gentle load under extreme gusts.

[0059] In some embodiments, the Young's modulus of the first connecting piece 21 is greater than the Young's modulus of the second connecting piece 22.

[0060] In some embodiments, the Young's modulus of the second connecting piece 22 is less than the Young's modulus of the third connecting piece 23.

[0061] As preferred, the Young's modulus of the first connecting piece 21 is greater than the Young's modulus of the second connecting piece 22, and the Young's modulus of the second connecting piece 22 is less than the Young's modulus of the third connecting piece 23.

[0062] The explanation about the Young's modulus is as follows: The Young's modulus, which can also be directly referred to as the elastic modulus, is a physical quantity that measures the ability of a material to resist elastic deformation under the action of unidirectional tension or compression. The value is equal to the ratio of stress to strain when the material is in the elastic deformation stage. The higher the value means that the material has greater rigidity and is more difficult to be elongated or compressed, which is a key mechanical property parameter representing the inherent rigidity of the material.

[0063] Therefore, the Young's modulus of the first connecting piece 21 is greater than the Young's modulus of the second connecting piece 22, which means that the rigidity of the first connecting piece 21 is large and the rigidity of the second connecting piece 22 is small.

[0064] The Young's modulus of the second connecting piece 22 is less than the Young's modulus of the third connecting piece 23, which means that the rigidity of the second connecting piece 22 is small and the rigidity of the third connecting piece 23 is large.

[0065] In the embodiment, the progressive rigidity change is realized by differentiating the Young's modulus configuration: the Young's modulus of the first connecting piece 21 is higher than that of the second connecting piece 22, which ensures that the force flow is preferentially transmitted along the high-rigidity path under daily working conditions, and maintains the positioning accuracy of the airship; when the first connecting piece 21 is broken, the second connecting piece 22 quickly enters the large deformation energy dissipation stage due to the lower Young's modulus, converts the impact kinetic energy into elastic potential energy, and prolongs the release period.

[0066] Further, the Young's modulus of the second connecting member 22 is also lower than that of the third connecting member 23, so that when the second connecting member 22 reaches the preset deformation and the third connecting member 23 intervenes in bearing, the force flow is switched to the higher stiffness channel again, forming a "high-low-high" stiffness sequence, which not only avoids the positioning drift caused by the continuous deformation of the elastic element, but also ensures that the residual peak is further reduced, thereby realizing the continuous protection of the anchor point and the equipment.

[0067] Please continue to refer to Figure 3 In some embodiments, the first connecting member 21 is connected between the center of the first mounting position 111 and the center of the second mounting position 121.

[0068] The third connecting member 23 is connected between the center of the first mounting position 111 and the center of the second mounting position 121.

[0069] In the present embodiment, if the first connecting member 21 and the third connecting member 23 are both considered to be in a stressed and straightened state, the first connecting member 21 and the third connecting member 23 are both arranged along the center axis of the first mounting position 111 and the second mounting position 121, forming a central force flow channel through the two-stage mounting component 1 (considering the first mounting position 111 and the second mounting position 121 as two stages of the mounting component 1). This coaxial configuration allows both the daily tension and the final bottom load to be transmitted along the geometric center, eliminating eccentric moments and reducing additional bending stress of the mounting component 1 and the cable 200.

[0070] In some embodiments, the number of second connecting members 22 is multiple, and the second connecting members 22 are connected to the periphery of the center of the first mounting position 111 and the periphery of the center of the second mounting position 121 to form a surrounding layout of the multiple second connecting members 22 with the first connecting member 21 or the third connecting member 23 as the axis.

[0071] In the present embodiment, the multiple second connecting members 22 are arranged at a certain angle along the periphery of the center of the first mounting position 111 and the second mounting position 121, forming a radial surrounding layout with the central stressed element as the axis. This distribution mode disperses the tension of a single second connecting member 22 in the circumferential direction, reducing local stress concentration; at the same time, the elastic deformation of each element restricts each other, which can inhibit the lateral swing of the airship in the buffering stage. Considering the multiple second connecting members 22 as a surrounding group, when the first connecting member 21 breaks, the surrounding group immediately synchronously bears the force, providing a continuous circumferential damping surface, further prolonging the energy dissipation time, and ensuring that the impact peak is sufficiently reduced before being transmitted to the anchor point.

[0072] Optionally, as shown in Figure 3 The number of second connecting members 22 is four, and still considering the first connecting member 21 and the third connecting member 23 to be in a stressed and straightened state, the four second connecting members 22 form a surrounding layout with the first connecting member 21 or the third connecting member 23 as the axis.

[0073] In some embodiments, a plurality of second connectors 22 are evenly arranged around the first connector 21 or the third connector 23 subjected to force.

[0074] In this embodiment, both the first connector 21 and the third connector 23 are still considered to be under stress and in a straightened state. Then, multiple second connectors 22 are arranged in a rotationally symmetrical and uniform manner around the first mounting position 111 and the second mounting position 121, with the first connector 21 or the third connector 23 as the axis of symmetry. This uniform angular distribution ensures that the axial stiffness of each second connector 22 forms equal support in the circumferential direction, so that the instantaneous switching load is evenly distributed to each component, preventing premature overload failure of individual components. Simultaneously, the symmetrical tensile field can counteract lateral forces, preventing the mounting component 1 from bearing additional bending moments, ensuring that the force flow of the cable 200 is always transmitted along the central axis, and maintaining the height and orientation accuracy of the floating body 2000.

[0075] In other words, the centrally symmetrical layout provides a balanced deformation space for the second connecting member 22 arranged around it, ensuring that the force flow direction remains unchanged and the positioning reference does not shift during the fracture switching process.

[0076] Optional, such as Figure 3 As shown, there are four second connectors 22. The first connector 21 and the third connector 23 are still considered to be under stress and stretched. The four second connectors 22 form a uniform, equidistant arrangement around the stressed first connector 21 or the third connector 23 as an axis. The first second connector 22 is considered to be located at 0° on the center periphery of the first mounting position 111 and the second mounting position 121, the second second connector 22 is located at 90°, the third second connector 22 is located at 180°, and the fourth second connector 22 is located at 270°.

[0077] In some embodiments, the mounting component 1 includes:

[0078] The first mounting component 11 has a first mounting position 111;

[0079] The second mounting component 12 is provided with a second mounting position 121;

[0080] The first side of the first mounting position 111 and the second mounting position 121 is used to provide an installation port for the cable 200, and the connecting component 2 is connected between the back side of the first mounting position 111 and the back side of the second mounting position 121.

[0081] In this embodiment, the mounting component 1 is decomposed into an independent first mounting component 11 and a second mounting component 12, which respectively support the first mounting position 111 and the second mounting position 121, and retain a standard interface for docking with the cable 200 on their respective front (first side); the connecting component 2 is arranged between the back sides of the two mounting positions to form a concealed internal force transmission channel.

[0082] The front and back side separation design isolates the access area of ​​the external cable 200 from the deformation area of ​​the internal buffer element, preventing the second connector 22 from interfering with the port seal and load alignment when it expands and contracts significantly. At the same time, the concentrated force distribution on the back side can shorten the central force flow path, reduce the additional bending moment, and improve the overall rigidity and fatigue life of the mounting component 1.

[0083] This application also provides a cable device 1000, including a cable 200 and the aforementioned impact-resistant mechanism 100, wherein the cable 200 is provided with the impact-resistant mechanism 100.

[0084] like Figure 1 As shown, by dividing the cable 200 into two parts, connecting the first part to the first mounting position 111 of the mounting component 1, and connecting the second part to the second mounting position 121 of the mounting component 1, the impact-resistant mechanism 100 is installed on the cable 200.

[0085] In this embodiment, the cable device 1000 is composed of a cable 200 and an impact-resistant mechanism 100 connected in series. The impact-resistant mechanism 100 is embedded in the force transmission path of the cable 200 through mounting ports at both ends, enabling the entire cable to maintain its original length adjustment function while possessing progressive buffering capability. This integration method does not require changing the interface size of the ground winch 4000 or the floating body 2000, and can integrate the breakage-buffering-re-load-bearing function into the cable segment, achieving a "plug-and-play" upgrade. When an impact event occurs, maintenance can be completed simply by replacing the failed components inside the impact-resistant mechanism 100, significantly shortening maintenance time and reducing the total life cycle cost.

[0086] This application addresses the problem that long-term stationary tethered aerostats are prone to instantaneous tension surges in cables, stress concentration at tethering points, and overload of ground anchoring equipment under complex weather conditions, especially at low and medium altitudes. It proposes a cable device 1000 with integrated buffer connection effect.

[0087] In some cases, the second mounting member 12 serves as the main buffer element in the impact-resistant mechanism 100 and can be implemented in various ways. For example, the second mounting member 12 can be set as an elastic damping cable. In addition, the second mounting member 12 can also be in other forms, including but not limited to mechanical springs, hydraulic dampers, etc., which should also fall within the scope of this embodiment.

[0088] Compared with existing technologies, this application introduces a multi-level elastic damping collaborative buffering mechanism into the mooring system to achieve a smooth release of gust impact loads, effectively reducing the peak tension of the cables, suppressing sudden changes in the hull attitude, significantly reducing the risk of impact damage to the mooring points, onboard equipment and ground anchoring facilities, improving the wind resistance and long-term airborne safety of the moored aerostat, and extending the service life of key components. It is suitable for high-reliability aerial platform scenarios such as emergency communication, disaster monitoring, and low-altitude early warning.

[0089] In contrast, current technologies, to ensure flight safety, generally employ high-strength cables with a safety factor of ≥10 for tethered aerostats, relying on the inherent strength margin of the material to cope with sudden loads. While ensuring static safety, this excessive stiffness leads to significant dynamic impact problems. For example, in gusts of wind, the cables cannot absorb energy through elastic deformation; the impact energy is transmitted along the cables with almost no attenuation, and the instantaneous impact force is directly transmitted to the hull anchor point, causing the following consequences: damage to the aerostat anchor point, air leakage in the aerostat; damage to precision equipment carried by the aerostat (such as holographic pods and radar) due to the severe impact; reduced service life of ground equipment due to impact damage (such as winch systems); and an excessively high safety factor leading to increased cable weight, reducing the effective payload. This rigid transmission mechanism has become a key technical bottleneck restricting the long-term reliability of tethered platforms.

[0090] In one specific embodiment, the parameters of the cable device 1000 are calculated as follows.

[0091] First, cable 200 is used as the main cable (also called the main cable), first connector 21 is used as the critical cable, second connector 22 is used as the elastic damping cable, third connector 23 is used as the reserved cable (also called the reserved main cable), and installation component 1 is used as the cable-jointing structure.

[0092] Maximum stress on the main cable , To calculate the maximum force.

[0093] S is the safety factor for the main cable, generally taken as 8 or higher; four elastic damping cables are evenly distributed around the cable-jointing structure, with a length of... .

[0094] The maximum elongation of the elastic damping cable is .

[0095] Maximum force on an elastic damping cable , .

[0096] Reserved main cable length .

[0097] Critical maximum force on the cable , As the critical safety factor for the cable, take .

[0098] Critical cable length It is located at the center of the cable-stayed structure.

[0099] In one specific implementation, the working condition analysis of the cable device 1000 is as follows.

[0100] Condition A: Under normal circumstances, the critical cable of the impact-resistant mechanism 100 is subjected to force, avoiding the direct force on the elastic resistance cable, which would cause the airship to swing excessively due to the expansion and contraction of the elastic damping cable in light wind conditions.

[0101] Condition B: When a gust of wind causes a change in the attitude of the airship and a violent impact on the main cable, if the impact force is too large, the critical cable will break, the elastic damping cable will begin to bear the force, and the impact will be released smoothly.

[0102] Condition C: If the impact is too great, the elastic damping cable will stretch to its limit. At this point, the reserved main cable begins to bear the load, ensuring that the entire cable system will not break.

[0103] This application also provides a tethered aerostat 10000, including an aerostat body 2000 and the aforementioned cable device 1000, wherein the aerostat body 2000 is connected to the cable device 1000.

[0104] In this embodiment, the tethered aerostat 10000 directly couples the aerostat body 2000 to the cable device 1000, allowing the hovering force of the aerostat body 2000 to be transmitted to the ground mooring system via the cable device 1000. Since the cable device 1000 has a built-in shock-resistant mechanism 100, the instantaneous tension induced by gusts is gradually weakened before reaching the aerostat body 2000, significantly reducing the load on the aerostat body 2000's bladder anchor points and tail fins. This prevents localized tearing of the bladder skin or deformation of the nose cone structure, ensuring long-term stability in its hovering configuration. This configuration provides embedded protection for the aerostat body 2000 without adding independent buffer equipment, effectively improving the availability and mission reliability of the tethered aerostat 10000 under complex weather conditions.

[0105] Therefore, the tethered aerostat 10000 has the following key features: ensuring that the main cable is under stress under maximum load; multi-level buffer design: achieving graded release of impact through a three-level stress structure of rigid-flexible-rigid; critical triggering mechanism: achieving intelligent stress switching by setting the safety factor (2-3 times) of the critical cable; elastic damping unit: the elastic coefficient and length of the elastic damping cable should be selected and matched according to actual calculations.

[0106] In the application scenario of the tethered aerostat 10000, on the one hand, the impact load is significantly reduced: through a three-level buffer mechanism (critical cable - elastic damping cable - reserved main cable), the instantaneous tension peak caused by gusts is reduced from 1.0~1.5 times the rated load of traditional rigid cables to 0.6~0.8 times, realizing the graded absorption and smooth release of impact energy.

[0107] On the other hand, the overall reliability of the system has been improved. For example, for the airship body: the impact stress on the hull mooring points (bow cone and stern cone) has been reduced, avoiding the risk of air leakage caused by damage to the bladder anchor points; and for the onboard equipment: the precision equipment such as the three-light pod and radar has been effectively protected from severe impact and vibration.

[0108] On the other hand, for ground facilities: it significantly reduces dynamic overload damage to ground equipment such as anchoring vehicles and winch systems.

[0109] In other aspects, operational economic optimization includes: the safety factor of the main cable can be appropriately reduced from the traditional ≥8 to ≥5, reducing the self-weight of the cable system while ensuring safety, and increasing the effective load capacity of the airship. This also extends the service life of the main cable and all connecting components, reducing maintenance and replacement frequency and costs.

[0110] In other aspects, the safety assurance system is comprehensive: the main cable is reserved as the final safety guarantee to ensure that the entire cable system will not break even under extreme impact conditions, thus achieving a fail-safe design.

[0111] Therefore, the tethered aerostat 10000 proposed in this application utilizes the impact-resistant mechanism 100 and achieves an optimized effect of combining rigidity and flexibility through a clever three-level force design. It retains the high stability advantage of traditional rigid cables while introducing the impact resistance of elastic buffers. It is currently the optimal technical path to solve the impact problem of tethered aerostat cables and can simultaneously meet the indicators of reliability, lightweight, and convenient maintenance.

[0112] Please refer to Figure 4 In some embodiments, the tethered aerostat 10000 further includes:

[0113] Sensor 3000 is installed on cable device 1000 and is used to monitor the tension of cable device 1000;

[0114] The winch 4000 is used to control the cable device 1000 to achieve winding and unwinding compensation based on the monitoring data of the sensor 3000.

[0115] In this embodiment, in addition to the multi-level elastic damping collaborative buffering mechanism with the impact-resistant mechanism 100 as the core provided in the above embodiments, the tethered airship 10000 can also be equipped with an intelligent active control system.

[0116] Specifically, sensor 3000 is positioned along the force transmission path of cable device 1000 to acquire tension signals in real time and feed them back to winch 4000. Winch 4000 uses this monitoring data to perform cable device 1000 retraction and extension compensation, ensuring that the aerostat 2000 maintains its preset height and position even under gusts of wind. Sensor 3000 and winch 4000 form a closed-loop control system, allowing the cable 200 to quickly return to its designed length after the shock-resistant mechanism 100 completes one buffer cycle, preventing continuous low-level drift of the aerostat 2000 due to buffer elongation. Simultaneously, real-time tension data provides ground maintenance with a basis for assessing remaining strength, enabling predictive maintenance and further improving the operational safety and economy of the tethered aerostat 10000.

[0117] In one specific implementation, the tethered aerostat 10000 can be a tethered airship. In addition, the tethered aerostat 10000 can also be a tethered balloon or other forms, which will not be described in detail here.

[0118] Tethered balloons are typically streamlined (e.g., spindle-shaped) or non-streamlined (e.g., spherical) to reduce wind resistance and maintain stability. The balloon is filled with a gas lighter than air, such as helium, which generates static buoyancy to overcome its own weight and the weight of the payload, thus allowing it to ascend. Its attitude and stability in the air are primarily maintained through its aerodynamic shape and tail fin, while the tethered cable secures it to the work site.

[0119] Tethered airships feature a distinctive cigar-shaped streamlined body and a tail fin for directional control. They also rely primarily on the buoyancy of lighter-than-air gases such as helium for static lift. However, their electric propulsion systems not only provide electricity but also actively adjust the thrust direction, working in conjunction with control surfaces to stabilize the airship against the wind, effectively counteracting its effects and enabling maneuverability within a certain range.

[0120] It should be noted that many of the components mentioned in this application are general standard parts or components known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0121] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0122] The impact-resistant mechanism, cable device, and tethered buoy provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. An impact-resistant mechanism, characterized in that, include: The mounting component is provided with a first mounting position and a second mounting position; A connecting component is disposed between the first mounting position and the second mounting position, the connecting component comprising: The first connector provides a connection tension between the first mounting position and the second mounting position when it is not broken; The second connector is subjected to force when the first connector breaks, thereby releasing the impact vibration between the first mounting position and the second mounting position. The first mounting position and the second mounting position are used to provide mounting ports for the cable.

2. The impact-resistant mechanism according to claim 1, characterized in that, The connection component also includes: The third connector is subjected to a pre-defined deformation when the second connector is subjected to force, providing a connecting tension between the first mounting position and the second mounting position.

3. The impact-resistant mechanism according to claim 2, characterized in that, The Young's modulus of the first connector is greater than that of the second connector; and / or, The Young's modulus of the second connector is less than that of the third connector.

4. The impact-resistant mechanism according to claim 2, characterized in that, The first connector is connected between the center of the first mounting position and the center of the second mounting position; The third connector is connected between the center of the first mounting position and the center of the second mounting position.

5. The impact-resistant mechanism according to claim 4, characterized in that, The number of the second connectors is multiple. The second connectors are connected to the center periphery of the first mounting position and the center periphery of the second mounting position to form a circular arrangement of multiple second connectors with the first connector or the third connector under force as the axis.

6. The impact-resistant mechanism according to claim 5, characterized in that, Multiple second connectors are evenly arranged around the first connector or the third connector that is subjected to force.

7. The impact-resistant mechanism according to any one of claims 1 to 6, characterized in that, The mounting components include: The first mounting component is provided with the first mounting position; The second mounting component is provided with the second mounting position; The first mounting position and the first side of the second mounting position are used to provide mounting ports for the cable, and the connecting component is connected between the back side of the first mounting position and the back side of the second mounting position.

8. A cable device, characterized in that, It includes a cable and an impact-resistant mechanism as described in any one of claims 1 to 7, wherein the cable is provided with the impact-resistant mechanism.

9. A tethered airship, characterized in that, It includes a floating body and a cable device as described in claim 8, wherein the floating body is connected to the cable device.

10. The tethered airship according to claim 9, characterized in that, Also includes: A sensor, located on the cable device, is used to monitor the tension of the cable device; A winch is used to control the cable device to achieve winding and unwinding compensation based on the monitoring data from the sensor.

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