JP2002347697A - Diaphragm-type airship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a diaphragm-type airship capable of stably keeping the attitude with a simple structure without increasing its weight. SOLUTION: In a side view shown in Fig. 1 (A) of this airship, five parts on a face of a diaphragm 2 and five parts at an air accommodating part 4 side of a hull 1a are connected through ropes 5-9, the ropes 5-9 are arranged approximately in parallel to one another, on the other hand, for example, in a sectional view (B) of Fig. 1 of the airship, the five parts on the surface of the diaphragm 2 and the five parts of the hull 1a are connected by elemental ropes 71 -75 forming a rope 7, and the elemental ropes 71 -75 are arranged approximately in parallel to one another. A length of these ropes 5-9 is determined to stably keep the attitude of the airship 1 at the lowest floating altitude.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airship in which the attitude of a hull is stably maintained at least at a minimum levitation altitude and a staying altitude by a diaphragm for separating levitation gas and air.

[0002]

2. Description of the Related Art There have conventionally been various methods for maintaining a stable attitude on an airship. Of these, in an airship without a diaphragm, the cabin or baronet 101 in front and rear of the hull connected to the duct 100 is used.
The position is kept stable by supplying and discharging air into the inside of the blower device 102 (FIG. 5), and the position of the center of gravity is changed by moving the payload 200 to keep the position stable. (FIG. 6) Although not shown in the figures, the one in which the attitude is kept stable on the aerodynamic control surface at the stern, and the one in which the helicopter function is added to keep the attitude stable, etc. There is. on the other hand,
In an airship with a diaphragm, the diaphragm 3
In the case where no special device is provided in addition to 00, in a high altitude region, the air is discharged by the blower device 301 to change the volume ratio of the buoyant gas and air in the airship, thereby keeping the attitude stable (FIG. 7A). ), Blower device 30 in low airspace
By changing the above-mentioned volume ratio by the supply of air according to FIG. 1, the posture is stabilized from the positional relationship between the floating center and the center of gravity (FIG. 7).
(B)). Further, as a special device, there is a device provided with a baronette for supplying and discharging air and buoyant gas in accordance with a change in ambient pressure. In the airship shown in FIG.
0 is near the bow and the air is supplied and exhausted by the blower device 401 and the volume ratio is changed by the blower device 301 so that the posture is kept stable. On the other hand, FIG. In the airship, the baronette 500
Is in the center of the hull and the floating gas is
By changing the volume ratio with the blower device 301, the posture is stably maintained.

[0003]

However, in an airship that does not have a diaphragm, the airship shown in FIG. 5 has several cabin or baronets inside the airship, and is provided with ducts and cabin etc. connecting these cabin and the like. Since a blower device for supplying and discharging air is required, there is a problem that the weight becomes heavy. Further, the airship shown in FIG. 6 requires a guide rail and a motor for moving the airship, and a power supply device for driving the motor, in addition to the payload. In addition, airships with aerodynamic control surfaces and helicopter functions have the disadvantage that the weight is heavy and the structure is complicated. On the other hand, the airship equipped with a diaphragm has a light weight and a simple structure. However, in the airship shown in FIG. 7, when the volume ratio between the floating gas and the air is changed, the diaphragm moves as the volume increases or decreases. Therefore, in such a case, if disturbance such as gust is applied, it becomes difficult to maintain a stable posture, and the hull may be turned upside down. Further, the airship shown in FIG. 8 requires a blower device for supplying and discharging air and buoyant gas to and from the baronet, and thus has a problem that the weight becomes heavy.

An object of the present invention is to provide a diaphragm-type airship that does not increase in weight and can maintain a stable posture with a simple structure.

[0005]

In order to solve the above-mentioned problems, a diaphragm type airship according to the first aspect of the present invention can maintain the attitude of the airship stably at a minimum levitation altitude, and furthermore, stays in a high airspace. However, in order to maintain the stability of the airship, multiple positions on the surface of the diaphragm that separates the buoyant gas and air from the airship are maintained, and the attitude of the airship in low altitudes is maintained stably. It is designed to be restrained to a plurality of parts of the outer hull of the airship via ropes or membranes so that it does not have to be specially provided, so it does not become heavy and simple. The posture can be kept stable by the structure. By the way, an aspect in which a plurality of portions on the surface of the diaphragm are constrained to a plurality of portions of the outer skin of the airship via a cord or a film body is optimally selected depending on an object of posture control such as pitch control and roll control. You.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a diaphragm type airship according to the present invention will be described with reference to FIGS. The airship 1 has a substantially elliptical shape in a side view as shown in FIG. 1 (A), and a diaphragm 2 disposed in the airship 1 includes a helium (floating gas) storage unit 3 and an air storage unit 4. It is a flexible diaphragm that spans from the bow to the stern. FIG. 1B is a cross-sectional view taken along the line AA in FIG. 1A, and reference numeral 10 in FIG.

In the airship 1, a plurality of portions on the surface of the diaphragm 2 are restrained to a plurality of portions of the hull outer skin 1 a of the airship 1 via cords 5-9 with respect to the diaphragm 2. That is, in the side view direction of the airship 1 shown in FIG. 1A, five portions on the surface of the diaphragm 2 and five portions of the hull skin 1a on the side of the air accommodating portion 4 in the present embodiment. Is connected via cords 5-9,
The cords 5 to 9 are arranged in a manner substantially parallel to each other.
On the other hand, of the airship 1, for example, in the cross section direction of FIG. (B), the site of the five locations on the surface of the diaphragm 2 by the element Sakutai 7 _{1-7 5} constituting the Sakutai 7, the ship hull 1a The five parts on the air storage part 4 side are connected to each other,
_{1-7 5} are arranged in a manner that a substantially parallel to each other.
Note that other rigging 5,6 and 8,9 is configured similarly to the cable body 7 also, for example, speaking about rigging 5, the diaphragm 2 by the element Sakutai 5 ₁ to 5 _5, ship hull 1a
: It is connected, the elements Sakutai 5 ₁ to 5 ₅ is disposed in a manner that a substantially parallel to each other. The ropes 5 to 9 are set so that the attitude of the airship 1 is stably maintained in a low airspace. That is, the lengths of the cords 5 to 9 are set such that the volume of the helium storage unit 3 can levitate at the minimum levitating altitude, and furthermore, in a horizontal state, the action lines of the buoyant center and the center of gravity are substantially collinear.

How to maintain a stable attitude in the airship 1 will be described with reference to FIGS. However, FIG. 2 shows how to maintain a stable attitude in a low altitude area, and FIG. 3 shows how to maintain a stable attitude in a high altitude area. Fig. 2 (A)
The airship 1 in the state shown in FIG. 3B receives a moment M in FIG. 5B such that the bow is turned upward due to turbulence in the air flow and the like, and the hull attitude changes to the state shown in FIG. Although the ropes 5 and 6 of the part relax and the diaphragm 2 tries to move in the direction in which the helium storage part 3 of this part increases, the ropes 7 to 9 at the stern part from the center of the hull remain extended. Then, the diaphragm 2 at this portion is kept in the initial state. As a result, there is no movement of the diaphragm 2 for biasing the helium storage portion 3 at the bow portion and the air storage portion 4 at the stern portion, and the buoyancy acting on the buoyancy of the airship 1 and the center of gravity of the airship 1 moment M ₀ by the gravity acting on the works so as to cancel the moment M. Therefore, the posture can be kept stable.

In the high altitude area, the airship 1 is in the state shown in FIG. 3A, the volume of the helium container 3 occupies most of that of the air container 4, and the cords 5 to 9 are all relaxed. ing. Therefore, the airship 1 in the state of FIG.
Even if the hull attitude changes to the state shown in FIG. (B) due to the moment N shown in FIG. (B) such that the bow is turned upward,
The buoyancy moment N ₀ acting on the buoyancy of the airship 1 is
It works to cancel the moment N. Therefore,
The posture can be kept stable.

The number of cords is not limited to the number of cords 5 to 9 as in the present embodiment. elements rigging number also goes without saying that not the element Sakutai 7 _{1-7 5.} In addition, the number of elemental cords between the cords does not need to be the same, and may be changed as appropriate. Further, the distance between the cords adjacent to each other and between the element cords is not limited to equal intervals.

In this embodiment, the case where the ropes 5 to 9 are used to restrict a plurality of portions on the surface of the diaphragm 2 to a plurality of portions of the hull 1a has been described. However, as shown in FIG. The body 11 may be used. In the case of the film body 11,
This shows an effect superior to that of the cords 5 to 9 in roll recovery in low altitudes. In FIG. 4, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals.

[0012]

According to the diaphragm type airship of the present invention, in which the diaphragm is restrained by a cord or a membrane, since no special device is provided, the weight does not increase, and the posture is stabilized with a simple structure. Can be kept.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of a diaphragm airship according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of how the airship maintains a stable attitude at a minimum levitation altitude.

FIG. 3 is an explanatory diagram of how the airship maintains a stable attitude at a staying altitude.

FIG. 4 is a schematic view showing a configuration of a diaphragm type airship using a membrane body instead of a cord body.

FIG. 5 is an explanatory diagram of how to maintain a stable attitude in a conventional airship.

FIG. 6 is an explanatory diagram of how to maintain a stable attitude in a conventional airship.

FIG. 7 is an explanatory diagram of how to maintain a stable attitude in a conventional airship.

FIG. 8 is an explanatory diagram of how to maintain a stable attitude in a conventional airship.

[Explanation of symbols]

One airship 1a ship hull 2 diaphragm 5-9 Sakutai 7 _{1-7 5} elements Sakutai (Sakutai) 11 film body

Claims (1)

[Claims] 1. An airship provided with a diaphragm for separating buoyant gas and air filled in the airship, a plurality of portions on the surface of the diaphragm are stably maintained at a minimum levitation altitude. Characterized in that the airship is constrained to a plurality of portions of a hull of the airship via a cord or a membrane.