Tail type suitable for passenger ship and cargo ship

Abstract

The utility model discloses a tail type suitable for a passenger and cargo ship, which is arranged on the passenger and cargo ship, the passenger and cargo ship is provided with a propeller, and a tail sealing plate is arranged at the tail of the passenger and cargo ship; the propeller is a pod propeller; the tail sealing plate is in an inclined plate shape, and the upper end of the tail sealing plate is located on the rear side of the lower end of the tail sealing plate. Course stabilizing fins are arranged at the bottom of the ship and are arranged in front of the pod propellers; and a fillet structure is arranged at the joint of the tail sealing plate and the side outer plate. When the ship sails, the flow field is better, the resistance is smaller, and the ship is suitable for more complex navigation areas and navigation channels.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, and particularly relates to a tail type suitable for a passenger-cargo ship. Background Art

[0002] A passenger-cargo ship is a ship specially designed for transporting passengers and goods. Its design mainly considers the needs of on-board cargo transportation and passenger accommodation, and it is a type of ship that combines cargo transportation and tourism. The hull form design and propulsion type of a passenger-cargo ship are important links in ship design, which are directly related to the performance and safety of the ship. Especially for the design of the tail hull form, after the main dimensions are determined, in addition to maintaining low resistance performance, it is also necessary to meet the layout requirements of a specific propulsion system, as well as the requirements of aesthetic appearance, etc.

[0003] For ship types with medium speed (Froude number of about 0.2) such as passenger-cargo ships, the existing design features of the tail hull form are usually: a small fin and a shaft bracket are provided, a conventional controllable pitch propeller propulsion type is adopted, a straight tail board is used, and a square tail is adopted above the waterline.

[0004] The defects and deficiencies of this technology are as follows: the design of the small fin increases the wetted surface area, thus resulting in an increase in frictional resistance and total resistance; the controllable pitch propeller still lacks maneuverability and flexibility when sailing in multiple sea areas; the straight tail board has a large resistance during astern operation and is not easy to maintain the course; the square tail shape above the waterline is a bit rigid and not very beautiful. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects existing in the prior art and provide a tail type suitable for a passenger-cargo ship.

[0006] The utility model solves the above technical problem through the following technical solutions:

[0007] A tail type suitable for a passenger-cargo ship is provided. It is installed on the passenger-cargo ship. The passenger-cargo ship is equipped with a thruster, and the tail of the passenger-cargo ship is provided with a tail board; the thruster is a podded thruster; the tail board is an inclined plate, and the upper end of the tail board is located behind the lower end of the tail board; a course stability fin is provided on the bottom of the ship, and the course stability fin is located in front of the podded thruster; a fillet structure is provided at the connection between the tail board and the side shell plating.

[0008] Furthermore, the passenger-cargo ship does not provide a shaft bracket for supporting the rotating shaft of the propeller.

[0009] Furthermore, the passenger-cargo ship does not provide a rudder.

[0010] Furthermore, the passenger-cargo ship does not provide a small fin.

[0011] Furthermore, the fillet structure is located above the waterline.

[0012] Furthermore, a fillet structure is provided at the connection between the side shell plate on the left side and the stern seal plate.

[0013] Furthermore, a fillet structure is provided at the connection between the side shell plate on the right side and the stern seal plate.

[0014] Furthermore, a motor propulsion room for fixing the podded propeller is provided at the stern of the passenger-cargo ship.

[0015] Furthermore, there are two podded propellers, and the two podded propellers are respectively arranged on the left and right sides of the ship center line.

[0016] Furthermore, there are two motor propulsion rooms, and the two motor propulsion rooms are respectively located on both sides of the ship center line; the two motor propulsion rooms respectively fix the two podded propellers.

[0017] The beneficial effects of the present utility model are as follows: The present utility model changes the traditional tail type with a propeller to a type adapted to podded propulsion. During navigation, the flow field is better, the resistance is smaller, and it is suitable for more complex navigation areas and waterways; the vibration and noise of the podded propulsion are also well controlled, and it is very suitable for ship types with high comfort requirements. In the present utility model, the inclined stern seal plate structure can reduce the resistance during astern navigation compared with the conventional vertical design, optimizing the maneuverability and stability; the ship's stern is increased with a course stability fin to improve the course stability; the connection between the stern seal plate and the side shell plate adopts a fillet structure above the waterline, further beautifying the appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present utility model.

[0019] Figure 2 For Figure 1 View A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following is a preferred embodiment, and the present utility model will be more clearly and completely described in conjunction with the drawings.

[0021] As Figure 1 and Figure 2 shown, a tail type suitable for a passenger-cargo ship is provided on the passenger-cargo ship. The passenger-cargo ship is provided with a propeller, and the propeller is a podded propeller 10. The passenger-cargo ship does not provide a shaft bracket for supporting the rotating shaft of the propeller. The passenger-cargo ship does not provide a rudder.

[0022] The stern of the passenger-cargo ship is provided with a stern seal plate 20; the stern seal plate 20 is an inclined plate shape, and the upper end of the stern seal plate is located behind the lower end of the stern seal plate.

[0023] The ship bottom is provided with a course stability fin 30, and the course stability fin 30 is arranged in front of the podded propeller 10. The passenger-cargo ship does not provide a small fin.

[0024] There is a fillet structure 22 at the connection between the aft seal plate 20 and the side shell plate 21. The fillet structure is above the waterline.

[0025] There is a fillet structure at the connection between the side shell plate on the left side and the aft seal plate; there is a fillet structure at the connection between the side shell plate on the right side and the aft seal plate.

[0026] There is a motor propulsion room 11 for fixing the podded propeller at the tail of the passenger-cargo ship.

[0027] There are two podded propellers 10, and the two podded propellers 10 are respectively arranged on the left and right sides of the ship's centerline.

[0028] There are two motor propulsion rooms 11, and the two motor propulsion rooms 11 are respectively located on both sides of the ship's centerline; the two motor propulsion rooms respectively fix the two podded propellers.

[0029] It should be noted that in the field of ship technology, the bow is in the front and the stern is in the rear.

[0030] In the present utility model, a podded propeller is adopted, optimizing the traditional mode of a small fin, a shaft bracket, a controllable pitch propeller and a rudder. The small fin, the shaft bracket and the rudder are removed in the present utility model, with smaller resistance and a more uniform inflow field.

[0031] A podded propeller is a propeller installed at the pod part of a ship, and controls the ship's course and speed by changing the shape and position of the pod. It usually consists of a propeller body, a driving mechanism and a control device. The characteristic of a podded propeller is that it can adjust the shape and position of the pod to adapt to different navigation conditions and requirements. For example, in the case of needing to improve the ship's speed and efficiency, the position and shape of the pod can be adjusted to make the propeller play a better role; when needing to improve the ship's maneuverability and stability, the shape and position of the pod can be adjusted to improve the ship's navigation performance. The driving mechanism of a podded propeller usually includes an electric motor, a hydraulic motor, etc., which can control the rise and fall of the pod. The control device includes a remote controller, a sensor, etc., which can monitor and control the position and state of the pod in real time. Podded propellers are widely used in the fields of ships, ocean engineering, ship engineering, etc., and are of great significance for improving the navigation performance, safety and efficiency of ships.

[0032] Under complex and changeable navigation conditions, it is necessary to select a navigation area suitable for the podded propeller to cope with various navigation situations.

[0033] In the present utility model, the aft seal plate is designed in an inclined form.

[0034] Making the aft seal plate inclined may bring the following benefits for astern navigation: improving the maneuverability of the ship. The inclined seal plate can improve the maneuverability of the ship, making the ship more stable and easier to control during astern navigation; reducing the water flow resistance. The inclined seal plate can reduce the impact of water flow on the ship, thereby reducing the resistance of the ship during astern navigation and increasing the speed and efficiency of the ship; improving the course stability of the ship. The inclined seal plate can improve the course stability of the ship, making it easier for the ship to maintain its course during astern navigation and reducing the possibility of yaw.

[0035] In the present utility model, a course stability fin is added to the tail to cooperate with the entire tail type.

[0036] The main function of the course stability fin is to improve the course stability of the ship. The degree of improvement is roughly proportional to the area of the deadwood. In addition, when the ship enters the dry dock, it is convenient to set up dock blocks.

[0037] In the present utility model, the connection between the aft seal plate and the side shell plating adopts a chamfered corner structure above the waterline to increase the aesthetic degree.

[0038] Adopting the ship type of the present utility model, in the ship model speed performance test, it can be observed from the designed speed waveform of the test that the waveform at the tail is relatively stable, which is more beneficial to reducing the wave-making resistance at the tail. According to the test results, the resistance is at a relatively low level among similar approximate ship types.

[0039] The present utility model changes the traditional tail type with a propeller to a type adapted to podded propulsion. During navigation, the flow field is better, the resistance is smaller, and it is suitable for more complex navigation areas and channels; the vibration and noise are well controlled when using podded propulsion, which is very suitable for ship types with high requirements for comfort.

[0040] In the present utility model, the inclined aft seal plate structure can reduce the resistance, optimize the maneuverability and stability during astern navigation compared with the conventional vertical design; adding a course stability fin to the ship's tail can improve the course stability; the connection between the aft seal plate and the side shell plating adopts a rounded corner structure above the waterline, further beautifying the appearance.

[0041] Although the specific implementation manners of the present utility model have been described above, those skilled in the art should understand that this is only for illustration. The protection scope of the present utility model is defined by the appended claims. Without departing from the principles and essence of the present utility model, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A tail type suitable for a passenger-cargo ship, which is provided on a passenger-cargo ship. The passenger-cargo ship is provided with a propeller, and a tail seal plate is provided at the tail of the passenger-cargo ship; it is characterized in that, The thruster is a podded thruster; the aft seal plate is an inclined plate, and the upper end of the aft seal plate is located at the rear side of the lower end of the aft seal plate; a course stability fin is provided on the ship bottom, and the course stability fin is arranged in front of the podded thruster; a fillet structure is provided at the connection between the aft seal plate and the side shell plating.

2. The tail type suitable for a passenger-cargo ship according to claim 1, characterized in that, The passenger-cargo ship does not have a shaft bracket for supporting the propeller rotating shaft.

3. The stern type suitable for a passenger-cargo ship as claimed in claim 1, wherein, The passenger-cargo ship does not have a rudder.

4. The tail type suitable for a passenger-cargo ship according to claim 1, characterized in that, The passenger-cargo ship does not have a small fin.

5. The tail type suitable for a passenger-cargo ship according to claim 1, characterized in that, The fillet structure is located above the waterline.

6. The tail type suitable for a passenger-cargo ship according to claim 5, characterized in that, A fillet structure is provided at the connection between the side shell plating on the left side and the aft seal plate.

7. The tail type suitable for a passenger-cargo ship according to claim 5, characterized in that, A fillet structure is provided at the connection between the side shell plating on the right side and the aft seal plate.

8. The tail type suitable for a passenger-cargo ship as claimed in claim 1, characterized in that, A motor propulsion room for fixing the podded thruster is provided at the stern of the passenger-cargo ship.

9. The tail type suitable for a passenger-cargo ship as described in claim 8, characterized in that, There are two podded thrusters, and the two podded thrusters are respectively arranged on the left and right sides of the ship centerline.

10. The stern type suitable for a passenger-cargo ship as described in claim 9, characterized in that, There are two motor propulsion rooms, and the two motor propulsion rooms are respectively located on both sides of the ship centerline; the two motor propulsion rooms respectively fix the two podded thrusters.

Images