A nose cone mooring structure for an airship without a rigid frame

Abstract

The present invention discloses a nose cone mooring structure for an airship without a rigid frame, comprising a base, a bottom ring, straight beams, and arc beams. The base is provided with several straight beams, and the ends of the straight beams away from the base are connected to the arc beams via a four-way structural member. The arc beams are provided with through slots that cooperate with fixing loops on the airship capsule. The bottom ring is provided between the four-way structural members. The nose cone mooring structure for an airship without a rigid frame of the present invention provides a simple nose cone fixing and mooring method for mooring an airship without a rigid frame. This solution can evenly distribute the tension during the mooring of the airship, does not require special reinforcement of the airship capsule material, and does not significantly increase the amount of capsule material used. At the same time, the nose cone can also ensure that the head portion, which is subject to greater air resistance, does not deform during the flight of the airship, thereby increasing the flight resistance.

Description

Technical Field

[0001] The invention relates to the field of nose cone mooring structures, in particular to a nose cone mooring structure of an airship without a rigid frame. Background Art

[0002] An airship is a lighter-than-air aircraft. Unlike a hot air balloon, it primarily incorporates propulsion and flight control systems. An airship consists of a large, streamlined hull, a gondola located beneath it, a stabilizer and propulsion system. The hull's airbag is filled with a gas (hydrogen or helium) with a density lower than air, generating buoyancy and propulsion. The gondola accommodates passengers and cargo. The tail controls and maintains heading and pitch stability. Large civilian airships can also be used for transportation, recreation, disaster relief, film and television production, scientific experiments, and more.

[0003] Airships are divided into two categories: those with and without frames. Existing tethering structures are mainly used for semi-rigid or rigid frames. The nose cone structure is directly connected to the rigid frame, and the pulling force during tethering acts directly on the internal frame of the airship. However, this technology is not suitable for airships without rigid frames.

[0004] Another method is to increase the material strength and amount of the airship head and directly connect it with a cable for mooring. However, this method is suitable for mooring small airships. Once the mooring tension is large, this method cannot guarantee the strength requirements.

[0005] Therefore, how to develop a nose cone mooring structure for an airship without a rigid frame has become a problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a nose cone mooring structure for an airship without a rigid frame, so as to solve the problem that there is no nose cone mooring structure for an airship without a rigid frame in the prior art.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention provides a nose cone mooring structure for an airship without a rigid frame, comprising a base, a bottom ring, straight stringers, and arc stringers. The base is provided with a plurality of straight stringers, and ends of the straight stringers away from the base are connected to the arc stringers via four-way structural members. Through grooves are formed on the arc stringers for cooperating with fixing loops on the airship capsule. The bottom ring is provided between the four-way structural members.

[0009] Furthermore, the base is hinged to the anchor seat through high-strength bolts, and the bottom of the anchor seat is fixedly set on the ground.

[0010] Furthermore, the fixing loop is sewn on the front end outer surface of the airship capsule.

[0011] Furthermore, the four-way structural member is connected to the outer surface of the airship capsule through a fixing loop.

[0012] Furthermore, the four-way structural member is respectively connected to the straight beams and the arc beams in the longitudinal direction, and is connected to the bottom ring in the transverse direction.

[0013] Furthermore, four through grooves are evenly arranged on the arc beam.

[0014] Furthermore, one end of the base away from the anchoring seat is connected to the straight beams through a disc, and a plurality of straight beams are evenly arranged on the disc of the base.

[0015] Furthermore, the specific number of the straight beams is 12.

[0016] Furthermore, adjacent straight beams are spaced 30° apart.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] The arc-shaped stringers of the nose cone mooring structure of the airship without a rigid frame of the present invention are connected to the airship capsule through multiple fixing loops. The fixing loops are flexible connections that can avoid damaging the airship capsule. The nose cone mooring structure of the airship without a rigid frame of the present invention includes two sections: straight stringers and arc-shaped stringers. The split structural design facilitates strength analysis and processing and manufacturing. The anchor seat of the nose cone mooring structure of the airship without a rigid frame of the present invention is connected to the base by a single bolt, which also simplifies the design and reduces the vibration of the airship head in the vertical direction. The nose cone mooring structure of the airship without a rigid frame of the present invention uses 12 stringers, which is conducive to maintaining the shape of the front part of the airship, so that it will not collapse due to air resistance, thereby increasing flight resistance. In general, the nose cone mooring structure of an airship without a rigid frame of the present invention provides a simple nose cone fixing and mooring method for mooring an airship without a rigid frame. This solution can evenly distribute the tension during the mooring of the airship, does not require special reinforcement of the airship's bladder material, and does not significantly increase the amount of bladder material used. At the same time, the nose cone can also ensure that the head of the airship, which is subject to greater air resistance, does not deform during flight, thereby increasing flight resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 Schematic diagram of the nose cone mooring structure of the airship without a rigid frame of the present invention;

[0021] Figure 2 This is a diagram showing the nose cone mooring structure of the non-rigid frame airship of the present invention in use;

[0022] Figure 3 It is a schematic diagram of the structure of the four-way structural parts;

[0023] Figure 4 Schematic diagram of the arc truss structure;

[0024] Figure 5 Schematic diagram of the fixed loop structure;

[0025] Figure 6 This is a schematic diagram of the anchor seat structure.

[0026] Explanation of the accompanying reference numerals: 1. Anchor seat; 2. Base; 3. Bottom ring; 4. Four-way structural member; 5. Straight girder; 6. Arc girder; 6-1. Through groove; 7. High-strength bolt; 8. Airship capsule; 9. Fixing loop. DETAILED DESCRIPTION

[0027] like Figures 1 to 6 As shown, a nose cone mooring structure of an airship without a rigid frame includes a base 2, a bottom ring 3, straight stringers 5 and arc stringers 6.

[0028] The base 2 is provided with several straight beams 5, the ends of which, away from the base 2, are connected to the arc beams 6 via a four-way structural member 4. The arc beams 6 are provided with through slots 6-1 that mate with fixing loops 9 on the airship bladder 8. The bottom ring 3 is disposed between the four-way structural members 4.

[0029] The base 2 is hinged to the anchor seat 1 via high-strength bolts 7, converting the vertical movement of the airship into rotation around the high-strength bolts 7, greatly reducing the vertical vibration of the airship after mooring. The bottom of the anchor seat 1 is fixed to the ground.

[0030] The fixing loop 9 is sewn on the front end outer surface of the airship capsule 8 .

[0031] The four-way structural member 4 is connected to the outer surface of the airship capsule 8 via a fixing loop 9 .

[0032] The four-way structural member 4 is connected to the straight beam 5 and the arc beam 6 in the longitudinal direction, and is connected to the bottom ring 3 in the transverse direction.

[0033] Four through slots 6 - 1 are evenly arranged on the arc beam 6 .

[0034] The end of the base 2 away from the anchor seat 1 is connected to the straight beams 5 via a circular disc. Several straight beams 5 are evenly arranged on the circular disc of the base 2. The specific number of straight beams 5 is 12, and adjacent straight beams 5 are spaced 30 degrees apart to balance the tensile load.

[0035] The assembly process of the present invention is as follows:

[0036] First, by analyzing the cross-section of the head of the airship capsule 8, the section closest to the arc is selected. The beam of the nose cone is composed of two sections. One section is the arc beam 6 connected to the airship capsule 8, and the other section is the straight beam 5 connected to the base 2 and simplifies the force transmission path. The straight beam 5 and the arc beam 6 are connected by a four-way structure 4. The connection structure is as follows: Figure 2 shown.

[0037] Four through slots 6-1 are formed on the arc beam 6, through which fixing loops 9 pass to connect with the airship capsule 8. These four fixing loops 9 disperse the tension on the arc beam 6 to four stress points on the airship capsule 8, thereby reducing the situation where the force is concentrated at a certain point on the airship capsule 8.

[0038] A complete base ring 3 is fitted with 12 four-way structural members 4, which are also connected to the airship envelope 8 via fixing loops 9. The ends of the straight stringers 5 are connected to the base 2. The head of the entire airship envelope 8 is centered on the horizontal axis. A set of four-way structural members 4 and stringers are arranged every 30 degrees on the base ring 3 to balance the tensile load.

[0039] The entire structure is mainly made of aluminum alloy, with simple process, quick assembly and low cost; the airship without a rigid frame is lighter, and the increase in the weight of the nose cone is smaller than that of a rigid frame. The reduction in the overall weight of the airship can enable it to carry more load; the nose cone structure installed on the outer surface of the capsule can provide a conformal function on the one hand, and on the other hand will not damage the original airtightness of the capsule structure.

[0040] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A nose cone mooring structure for a non-rigid frame airship, characterized by: The invention comprises a base (2), a bottom ring (3), straight beams (5) and circular arc beams (6), wherein the base (2) is provided with a plurality of straight beams (5), and one end of the straight beams (5) away from the base (2) is connected to the circular arc beams (6) through a four-way structural member (4); the circular arc beams (6) are provided with through grooves (6-1) that cooperate with the fixing loops (9) on the airship capsule (8); the bottom ring (3) is provided between the four-way structural members (4); the four-way structural member (4) is connected to the outer surface of the airship capsule (8) through the fixing loops (9); the four-way structural member (4) is connected to the straight beams (5) and the circular arc beams (6) in the longitudinal direction, and is connected to the bottom ring (3) in the transverse direction; and four through grooves (6-1) are evenly arranged on the circular arc beams (6).

2. The nose cone mooring structure of a non-rigid frame airship according to claim 1, characterized in that: The base (2) is hinged to the anchor seat (1) via high-strength bolts (7), and the bottom of the anchor seat (1) is fixedly arranged on the ground.

3. The nose cone mooring structure of a non-rigid frame airship according to claim 1, characterized in that: The fixing loop (9) is sewn onto the front end outer surface of the airship capsule (8).

4. The nose cone mooring structure of a non-rigid frame airship according to claim 2, characterized in that: One end of the base (2) away from the anchor seat (1) is connected to the straight beams (5) via a circular disc, and a plurality of straight beams (5) are evenly arranged on the circular disc of the base (2).

5. The nose cone mooring structure of a non-rigid frame airship according to claim 4, characterized in that: The specific number of the straight beams (5) is 12.

6. The nose cone mooring structure of a non-rigid frame airship according to claim 4, characterized in that: The interval between adjacent straight beams (5) is 30 degrees.

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