JPH01127479A - Passenger ship having highly stabilized passenger compartment - Google Patents

Abstract

PURPOSE:To alleviate shocks upon the passenger compartment due to waves and to damp even swing motions due to pitching and rolling of a hull by using a hydraulic support cylinder which supports the passenger compartment, and compressed gas in accumulators communicated with the cylinder. CONSTITUTION:A passenger compartment 2 is supported by a damping device 3 and a support device 4. The damping device 3 is comprises a support cylinder 5 and accumulators 6 for supporting the passenger compartment 2 through the intermediary of a piston 8 and a piston rod 8a with the use of N2 gas stored in the accumulator 6. In the support device 4, a drive cylinder 11 is born by a support shaft 12, and the forward end of a piston rod 13 of a piston 13 adapted to be moved vertically by a hydraulic pressure is coupled to a slidable shaft 15 loosely fitted in a slide groove 14 on the passenger compartment 2 side, through the intermediary a pin 16.

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a passenger ship equipped with a passenger cabin, and more specifically, one cabin is made independent from the ship's hull so that it can be used in spite of the movement of the ship.
This invention relates to a passenger ship in which a passenger cabin is always maintained in a stable state, and is particularly suitable for application to a high-speed ship (boat).

(b) Conventional technology A horizontal support structure that stabilizes the cabin relative to the hull has not yet been seen on high-speed ships such as planing types, with the exception of large displacement passenger ships.

(c) Problems to be solved by the invention A planing-type high-speed ship (boat) that runs on the sea surface runs on surface waves with short wavelengths, so there is a difference between surface waves (for example, ripples) and the bottom of the ship. A slight shock occurs between the
This impact occurs in proportion to the speed of the ship and is not desirable.

On the other hand, when traveling on waves with a long wavelength,
This results in so-called "low link" and "pitching" rolling and pitching motions, which become more severe, especially in high-speed ships, because the period of the waveform becomes shorter.

Therefore, the applicant of the present application filed Japanese Patent Application No. 1983-92649 in order to solve this problem.

The present invention includes a relaxation device that separates one cabin from the hull and at the same time relieves the action of impactful acceleration between the hull and the wave surface;
A support device equipped with a buffer device that absorbs the low link and pitching effects of the hull and copes with the impact of the impact acceleration is placed between the hull and the passenger cabin to stably hold the passenger cabin on the hull. It is something.

In this application, since the drive cylinder of the support device for stabilizing the hull is a servo cylinder, both lot types are adopted. That is, the servo cylinder is easily controlled by a meat lot type or generally by a servo valve. However, on a passenger ship, securing cabin space and seating for passengers is extremely difficult.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to not only stably maintain a passenger room, but also to make the space of the passenger room as wide as possible.

(D) Means for Solving the Problems The present invention provides a buffer type a that separates the cabin from the hull and alleviates the action of impactful acceleration between the hull and the wave surface, and a low link and a hull of the hull. In a passenger ship with a highly stabilized cabin, a support device having a drive cylinder that absorbs the pitching effect and a buffer device that copes with the impact of the impact acceleration is arranged between the hull and the cabin,
The drive cylinder is a single-rod type servo cylinder, and a correction circuit is provided in the control circuit of the servo valve, so that the difference in flow rate gain when the drive cylinder moves up and down can be corrected.

(E) Function As described above, in the present invention, the shock absorber uses a hydraulic support cylinder (ram cylinder) that supports the passenger compartment and compresses gas in an accumulator that communicates with the hydraulic support cylinder to cushion the impact on the passenger compartment. In response to pitching and low linking of the hull, this system automatically increases and decreases the hydraulic pressure in the drive cylinders on both the front and rear sides according to computer instructions to prevent the vibration of the hull caused by long wavelength waves from being transmitted to the cabin. .

In addition, a buffer device is interposed between the drive cylinder and the passenger compartment so that the impact of the aforementioned acceleration is not transmitted to the passenger compartment through the drive cylinder, and the impact of the acceleration is prevented from reaching the passenger compartment. .

Furthermore, by making the drive cylinder a single-ended type, the length of the drive cylinder can be shortened by the stroke of the abolished rod, and the space in the passenger compartment can be increased accordingly.

(f) Example The present invention will be described in detail below using an example shown in FIG.

Figures 1, 2UA and 3 are side views of the passenger ship of the present invention;
The plan view and front view show the arrangement of the above-mentioned buffer type and support device, where l is the hull, 2 is a cabin supported on the hull l independently from the hull l, and 3 is the shock absorber. The passenger compartment 2 is supported at three points in parallel with a support device 4, which will be described later.The buffer type 713 consists of a support cylinder (ram cylinder) 5 and an accumulator 6, as shown in FIG. The cabin 2 is supported by the gas pressure of the N2 gas 7 via the piston 8 and the piston rod 8a.In consideration of rolling and pitching of the hull l, a support shaft 9 is attached to the support cylinder 5, and a support shaft 9 is attached to the cabin 2. A support shaft lO is provided.

Next, the support type a4 has its drive cylinder (servo cylinder) 11 supported by a support shaft 12, and the tip of the piston rod 13a of the piston 13, which is moved by hydraulic pressure, is connected to the passenger compartment 2. ' in the sliding groove 14 on the side.
The sliding shaft 15 is connected via a pin 16 to a sliding shaft 15, which is fitted with a coiled link 17a at the top and bottom.

17b is arranged so that the passenger compartment 2
It is connected to.

18 is the cylinder 1, and these are the drive cylinders 1.
1 constitutes a buffer system 719 for the drive cylinder 11 that prevents the above-mentioned acceleration effect of the hull l, that is, the vibration caused by the impact between the wave surface and the hull, from being transmitted to the passenger cabin 2 through the driving cylinder 11.

The drive cylinder 11 is of a single rod type, and its piston rod 13a expands and contracts in accordance with the movement of the ship. To explain this in detail using FIG. 5, the motion of the ship l, that is, pitching and low link, are detected by the detector 20 and 1. The signal from the detection $20 is sent to the preamplifier 22 via the feedback amplifier 21.
sent to.

On the other hand, the preamplifier 22 receives a signal from the control calculation 2!29 which receives a tilt signal, an acceleration signal, or the like.

Then, the signal from this preamplifier 22 is sent to an unbalanced gain circuit 23 that constitutes a correction circuit, and the signal from this unbalanced gain circuit 23 is amplified by a boost amplifier 24 and sent to a servo valve 25, where it is sent to the servo valve 25. The opening degree of the valve 25 is controlled.

That is, when raising the piston rod 13a, J1! Servo valve 25 to pass through
When opening the large passage 26 of the servo valve 25 and introducing human-like hydraulic pressure into this F chamber 11a, and lowering the piston rod 13a, the small passage 27 of the servo valve 25 communicating with the 1-chamber 11b of the drive cylinder 11 is opened. is opened, and a small amount of hydraulic pressure is introduced into this L chamber 11b.

In this way, in the one-fourth L-type drive cylinder 11, does Eμ and tij, is) gain differ during descending?
The difference was corrected by an unbalanced gain circuit 23 provided in the servo amplifier 28 and expressed in degrees. I am trying to do 1jIv4.

Next, the buffer device will be explained. In this buffer device, the function of the shock absorber 18 is extremely important in order to obtain a high degree of stability in the cabin. That is,
It is necessary to be able to cope with all natural conditions within the range in which the vehicle can run, and at the same time to provide sufficient control over increases and decreases in the number of passengers. Therefore, it is difficult to cover all conditions with the spring constant of the coil splinters 17a and 17b set to -jl.

Because replacing the splinter frequently is f”
This is because f tit.

So, Shi1tsukuafsoha18? The orifice is deformed to +i7, and depending on the conditions, external
111! The orifice is moved or automatically moved by the l signal to change the reducing force and produce the same effect as replacing the coil springs 17a and 17b.

In FIG. 1, 31 is a tank unit, 32 is a Harz stand, 33 is an accumulator stand, 34 is a power unit, 35 is a six-type interlocking detection device, and 36 is an operation control panel.

In an uninvented passenger ship with the following configuration, a shock absorber'
By t13, the small #i between the surface waves on the sea and the bottom of the ship
? ! is absorbed by the gas 7 of the accumulator 6 and prevents the wave motion to the cabin 2.At the same time, the motion of the hull 1, that is, pitching and rolling, is detected by the detection device 35 and automatically activates the front, rear, left and right support devices 4. hand,
In order to keep the passenger compartment 2 level, the amount of oil in each WIA dynamic cylinder It is increased or decreased.Based on the combined operation of pitching and low link, a quick A- is applied to the drive cylinder 11, and the passenger compartment 2 is kept level. Prevent hJ niece.

Incidentally, the buffer device 19 incorporated in the support device includes the coil springs 17a, 17b and the shock absorber 1.
Since the shock absorber 18 is in the form of an orifice, it is possible to manually or automatically form the orifice to respond to any conditions, and it also has the ability to respond to changes in the cabin temperature. It is possible to maintain it in an extremely stable state.

(g) Effects of the Invention As described above, in unlaunched passenger ships, especially planing type high-speed ships, the impact between the sea wave surface and the bottom of the ship is absorbed by the shock absorber that supports the cabin, and The attitude angle of the hull is detected by an angle sensor, an accelerometer for downward movement, etc. in response to the pitching and low link action of the cabin by the support device, and this is processed by a computer and commands are sent to each of the drive cylinders. In addition, since it maintains the levelness of the cabin, it has an excellent feature that allows it to cope with all possible natural and artificial conditions.

In addition, by equipping the support device with a buffer device, the shock absorber has the ability to absorb the vibrations of the drive cylinder on the hull side and the slight vibrations of the coil spring while maintaining the water level in the cabin. Since the orifice is configured to be variable and respond appropriately to external conditions, the cabin is highly stabilized.
It is capable of exhibiting excellent mechanisms as a high-speed passenger ship.

Furthermore, by making the drive cylinder into one lot, the length of the drive cylinder can be shortened by the stroke of the abolished loft, and the space in the passenger compartment can be increased by that amount.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the trunk of the passenger ship of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a front view of the same. 4th [4 is Yunan "A"]
This is an enlarged side view [A, FIG. 5 shows the drive cylinder control circuit] 4 showing i1 and the support device. 1 - Hull 2 - Cabin 3 - Shock absorber 4 - Support device 11 - Drive cylinder 13a - Piston rod 1g.
~ Buffer device 23 ~ Unbalanced gain circuit 25 ~ Servo valve 1986 117112 II Patent applicant Kayabar L Gyo Co., Ltd.

Claims (1)

[Claims] A shock absorbing device that separates the cabin from the hull and alleviates the action of impactful acceleration between the hull and the wave surface, and a drive cylinder that absorbs the rolling and pitching action of the hull; In a passenger ship with a highly stabilized cabin, in which a support device equipped with a buffer device corresponding to the above is disposed between the hull and the cabin, the drive cylinder is a single rod servo cylinder, and a correction circuit is added to the control circuit using the servo valve. What is claimed is: 1. A passenger ship having a highly stabilized passenger cabin, characterized in that the passenger ship is configured to be able to correct the difference in flow rate gain when the drive cylinder is raised and lowered by providing the following: