Ship stabilization and land propulsion integrated system based on Magnus effect
Through an integrated system based on the Magnus effect, seamless switching between ship roll stabilization and land propulsion is achieved, solving the complexity and inefficiency problems caused by the independence of systems in existing technologies and improving energy utilization and operational convenience.
Patent Information
- Application Number
- CN202510965547.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2025-09-12
AI Technical Summary
In the existing technology, the land propulsion system and the roll stabilization system of a ship are independent of each other, resulting in a complex structure, large space occupation, high maintenance cost and low energy utilization rate, and lack of an intelligent integrated control system.
A ship roll stabilization and land propulsion integrated system based on the Magnus effect was designed. Through a dynamically adjustable mechanical connection mechanism and an integrated sensor network, the Magnus rotating column can be quickly switched between the roll stabilization configuration and the land propulsion configuration. The detection system and the control system can also realize automatic identification and switching of the working mode.
It achieves stable control of ships when sailing in waters and autonomous propulsion when moving on land, improves the utilization rate of equipment and energy, reduces the complexity of ship design and maintenance costs, and is suitable for amphibious ships that frequently switch between water and land and commercial ships that need autonomous movement.
Smart Images
Figure CN120620940A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of ship engineering, and in particular relates to an integrated system of ship roll reduction and land propulsion based on the Magnus effect. Background Art
[0002] Traditional ship stabilization systems are primarily classified into two categories: passive and active. Passive anti-roll systems, including bilge keels and anti-roll tanks, have the advantages of simple structure and the absence of additional energy sources. However, their anti-roll effect is limited and they increase navigation resistance. Among active anti-roll systems, rotating cylindrical anti-roll devices based on the Magnus effect have attracted considerable attention due to their fast response speed and high control precision. A typical Magnus anti-roll device consists of one or more pairs of high-speed rotating cylinders, which generate the required stabilizing torque by adjusting the rotational speed.
[0003] Land-based ship mobility currently relies primarily on external traction equipment or dedicated land-based propulsion systems. Some specialized vessels are equipped with retractable wheeled or tracked propulsion systems, but these propulsion systems are often independent of the roll stabilization system, increasing the ship's design complexity and manufacturing costs. The coexistence of two systems results in low equipment and energy utilization, which does not meet the energy-saving and environmental protection requirements of modern ships. Mode switching requires manual intervention, and there is a lack of intelligent, integrated control systems. Summary of the Invention
[0004] In view of this, in order to solve the problems of the independence of the land propulsion system and the anti-roll system of special ships, which leads to complex structure, large space occupation, high maintenance cost, etc., the present invention proposes an integrated ship anti-roll and land propulsion system based on the Magnus effect, and develops a dynamically adjustable mechanical connection mechanism so that the Magnus rotating column can be quickly switched between the anti-roll layout and the land propulsion layout. The surface of the Magnus rotating column is cross-arranged with bonding layers of different materials so that the surface meets both the fluid dynamic characteristics and the land friction requirements. It is equipped with an integrated sensor network to realize automatic recognition and switching of working modes. The system realizes the dual functions of stable control of ships when sailing in waters and autonomous propulsion when moving on land. It is particularly suitable for amphibious ships and landing ships that require frequent water-land conversions, as well as various commercial ships that need to move autonomously in docks.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an integrated ship roll stabilization and land propulsion system based on the Magnus effect, arranged on both sides of an external hull, comprising a Magnus device, a mode conversion device, a detection system, and a control system. The mode conversion device is connected to the side wall of the external hull and includes a horizontal movement mechanism and a mechanical arm mechanism. One end of the mechanical arm mechanism is connected to the horizontal movement mechanism and the other end is connected to the Magnus device, and can drive the Magnus device to move to the side and bottom of the external hull to respectively execute different operating modes. The detection system is installed on the external hull and electrically connected to the control system for collecting and feeding back signals. The control system is installed on the external hull and electrically connected to the mode conversion device and the Magnus device for issuing commands.
[0006] Furthermore, the Magnus device includes a rotating column and a drive motor connected to each other, and the drive motor is connected to a robotic arm mechanism.
[0007] Furthermore, the horizontal movement mechanism includes a slide, a screw, a pair of screw motors and a slide. The slide is connected to the external hull side wall, the two ends of the screw are connected to a pair of screw motors, the pair of screw motors are fixed on the slide, and the slide is threadedly connected to the screw. The screw rotates to drive the slide to slide along the slide.
[0008] Furthermore, the robotic arm mechanism includes a motor 1, a connecting rod 1, a motor 2 and a connecting rod 2 connected in sequence, and the motor 1 and the motor 2 are both self-locking motors.
[0009] Furthermore, the detection system includes a pressure sensor located at the bottom of the bow of the external hull and water speed sensors on both sides of the external hull. The pressure sensor is used to feedback the pressure of the land ground, and the water speed sensor is used to detect the water speed of the water surface fed back by waves. The control system is provided with a pressure sensor threshold.
[0010] Furthermore, when the pressure sensor feedback value is lower than the pressure sensor threshold, the system is in anti-roll mode. The control system controls the mechanical arm mechanisms on both sides to drive the Magnus device to move to symmetrical positions on both sides of the hull. The control system controls the Magnus device to rotate and reduce roll based on the feedback from the water speed sensor.
[0011] Furthermore, when the pressure sensor feedback value is higher than the pressure sensor threshold, the system enters the land propulsion mode. The control system first controls the horizontal moving mechanisms on both sides to drive the mechanical arm mechanisms on both sides to move forward and backward respectively, and then controls the mechanical arm mechanisms on both sides to drive the Magnus devices on both sides to move to the bottom of the hull and arrange them one after another. The control system controls the Magnus devices to rotate for land propulsion.
[0012] Furthermore, the outer wall of the rotating column is circumferentially staggered with strip-shaped wear-resistant layers and strip-shaped hydrophobic layers.
[0013] Furthermore, the strip-shaped wear-resistant layer is rubber.
[0014] Furthermore, the strip-shaped hydrophobic layer is made of organic silicon material or organic fluorine material.
[0015] Compared with the prior art, the beneficial effects of the integrated ship roll stabilization and land propulsion system based on the Magnus effect described in the present invention are: 1. The present invention designs a mode conversion device that can dynamically adjust the position of the Magnus device relative to the hull, so that the Magnus device can quickly switch between the roll reduction configuration and the land propulsion configuration.
[0016] 2. The present invention feeds back detection signals from the detection system to the control system, which then sends instructions to the mode conversion device and the Magnus device to achieve automatic recognition and switching of the working mode.
[0017] 3. The outer wall of the rotating column of the present invention is formed by splicing a strip-shaped wear-resistant layer and a strip-shaped hydrophobic layer in the circumferential direction to form a surface layer, which can simultaneously meet the requirements of fluid dynamic characteristics and land friction.
[0018] 4. The same drive system of the present invention meets the different power requirements of the two working modes through the optimization of the transmission mechanism, thereby improving the utilization rate of equipment and energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic structural diagram of a ship roll stabilization and land propulsion integrated system based on the Magnus effect according to the present invention in a land propulsion mode; Figure 2 Schematic diagram of the structure of the Magnus device of the present invention; Figure 3 It is a structural schematic diagram of the horizontal moving mechanism of the present invention; Figure 4 Schematic diagram of the structure of the robotic arm mechanism of the present invention; Figure 5 This is a structural schematic diagram of a ship roll reduction and land propulsion integrated system based on the Magnus effect in the roll reduction mode according to the present invention; Figure 6 This is a schematic diagram of the structure of the present invention assembled with the external hull in land propulsion mode; Figure 7 A front view of the present invention assembled with the external hull in land propulsion mode; Figure 8A bottom view of the present invention assembled with the external hull in land propulsion mode; Figure 9 This is a schematic diagram of the structure of the present invention assembled with the external hull in a roll reduction mode; Figure 10 This is a front view of the present invention assembled with the external hull in a roll reduction mode; Figure 11 A bottom view of the present invention assembled with the outer hull in a roll reduction mode; In the figure: 1-Magnus device; 2-horizontal movement mechanism; 3-manipulator mechanism; 11-rotating column; 12-driving motor; 13-strip wear-resistant layer; 14-strip hydrophobic layer; 21-slide table; 22-screw; 23-screw motor; 24-slide seat; 31-Motor 1; 32-Connecting rod 1; 33-Motor 2; 34-Connecting rod 2. DETAILED DESCRIPTION
[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features therein can be combined with each other in the absence of conflict, and the embodiments described are only part of the embodiments of the present invention, not all of the embodiments.
[0021] 1. Specific implementation method 1, see Figure 1-11 To describe this embodiment, the integrated ship roll reduction and land propulsion system based on the Magnus effect described in this application is arranged on both sides of the external hull. It includes a Magnus device 1, a mode conversion device, a detection system and a control system. The mode conversion device is connected to the side wall of the external hull and includes a horizontal movement mechanism 2 and a mechanical arm mechanism 3. One end of the mechanical arm mechanism 3 is connected to the horizontal movement mechanism 2 and the other end is connected to the Magnus device 1. It can drive the Magnus device 1 to move to the side and bottom of the external hull to execute different working modes respectively. The detection system is installed on the external hull and electrically connected to the control system for collecting and feeding back signals. The control system is installed on the external hull and electrically connected to the mode conversion device and the Magnus device 1 for issuing commands.
[0022] The detection system monitors the status of the Magnus device 1 and the overall motion requirements of the vessel in real time, providing feedback to the control system. The control system supports manual or automatic mode switching, ensuring convenient and safe operation. The control system monitors the changes in the vessel's center of gravity in real time and adjusts the speed and position of the Magnus device 1, such as temporarily reducing the speed or moving it in stages during the transition, to maintain overall balance.
[0023] The Magnus device 1 comprises a rotating column 11 and a driving motor 12 connected to each other, wherein the driving motor 12 is connected to the robotic arm mechanism 3 and is used to generate a Magnus effect or land propulsion.
[0024] The horizontal moving mechanism 2 includes a slide 21, a screw 22, a pair of screw motors 23 and a slide 24. The slide 21 is connected to the external hull side wall, the two ends of the screw 22 are connected to a pair of screw motors 23, the pair of screw motors 23 are fixed on the slide 21, and the slide 24 is threadedly connected to the screw 22. The screw 22 rotates to drive the slide 24 to slide along the slide 21.
[0025] The robotic arm mechanism 3 includes a motor 1 31, a connecting rod 1 32, a motor 2 33, and a connecting rod 2 34, which are connected in sequence. Both motor 1 31 and motor 2 33 are self-locking motors. After executing a command to rotate a certain angle, they self-lock and become fixed. Motor 1 31 and motor 2 33 support variable speeds and forward and reverse rotation. One end of connecting rod 1 32 is driven by motor 1 31 to rotate or self-lock, while the other end is fixedly connected to motor 2 33. One end of connecting rod 2 34 is driven by motor 2 33 to rotate or self-lock, while the other end is fixedly connected to the drive motor 12.
[0026] The detection system includes a pressure sensor located at the bottom of the bow of the external hull and water speed sensors on both sides of the external hull. The pressure sensor is used to feedback the pressure of the land ground, and the water speed sensor is used to detect the water speed of the water surface fed back by waves. The control system is provided with a pressure sensor threshold.
[0027] When the pressure sensor feedback value is lower than the pressure sensor threshold, the system is in anti-roll mode. The control system controls the mechanical arm mechanisms 3 on both sides to drive the Magnus device 1 to move to symmetrical positions on both sides of the hull. The control system controls the Magnus device 1 to rotate and reduce roll based on the water speed sensor feedback.
[0028] When the pressure sensor feedback value is higher than the pressure sensor threshold, the system enters the land propulsion mode. The control system first controls the horizontal moving mechanisms 2 on both sides to drive the mechanical arm mechanisms 3 on both sides to move forward and backward respectively, and then controls the mechanical arm mechanisms 3 on both sides to drive the Magnus devices 1 on both sides to move to the bottom of the hull in a front and rear arrangement. The control system controls the Magnus devices 1 to rotate for land propulsion.
[0029] The outer wall of the rotating column 11 is provided with strip-shaped wear-resistant layers 13 and strip-shaped hydrophobic layers 14 in an alternating manner in the circumferential direction.
[0030] The strip-shaped wear-resistant layer 13 is rubber. It can also be other wear-resistant composite materials to ensure the gripping power of land travel.
[0031] The strip-shaped hydrophobic layer 14 is made of an organic silicon material or an organic fluorine material, such as polydimethylsiloxane or perfluoroalkane, to ensure anti-rolling efficiency in water.
[0032] The present invention has two working modes: anti-roll mode, refer to the attached Figure 5 、 9 , 10, and 11, the vessel is currently in the water, with the horizontal motion mechanism 2 and the manipulator mechanism 3 in the same operating position. The Magnus devices 1 are symmetrically arranged on either side of the hull, extending horizontally outward. Based on the water speed sensor's detection, the drive motor 12 rotates the rotating column 11, generating the Magnus effect and counteracting the vessel's rolling motion.
[0033] Land propulsion mode, refer to the attached Figure 1 、 6 , 7, and 8. At this point, the ship is preparing to land. The pressure sensor on the bottom of the hull feeds a signal based on the pressure change to the control system, which then sends a signal to the mode switching device. Specifically, the screw motors 23 on either side of the hull's horizontal motion mechanism 2 are activated to rotate forward and reverse, respectively. This drives the screws 22 to rotate, driving the slides 24 on either side of the hull to slide forward and backward along the slide 21. The second motor 33 is activated to drive the second connecting rod 34, which in turn drives the rotating column 11 and the drive motor 12 to rotate directly under the hull. After they are locked into place, they form a front-to-rear arrangement near the bow and stern, similar to a "wheel" propulsion structure. This close proximity to the bottom of the ship lowers the center of gravity and improves overall structural balance. The second motor 33 drives the second connecting rod 34 to independently control the direction of the rotating column 11, enabling steering or omnidirectional movement, providing greater stability. The drive motor 12 controls the rotational speed of the rotating column 11. Each rotating column 11 on either side of the hull is controlled by its own drive motor 12. When traveling on land, the speed difference can be adjusted to suit the terrain, such as differential steering to adapt to complex road conditions.
[0034] The present invention is applicable to amphibious ships, achieving seamless switching between water roll stabilization and autonomous movement on land; commercial cargo ships, reducing the cost of dock maintenance and land transfer; and special ships, such as polar exploration ships, adapting to complex terrain requirements.
[0035] This invention efficiently integrates the Magnus roll stabilizer with land-based propulsion through innovative layout adjustments and control systems, significantly enhancing the versatility and economic efficiency of a vessel. Its modular design and omnidirectional mobility facilitate vessel operation in complex environments, promising broad application prospects.
[0036] The embodiments of the present invention disclosed above are intended only to illustrate the present invention. The embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.
Claims
1. An integrated system for ship roll stabilization and land propulsion based on the Magnus effect, characterized by: Arranged on both sides of the external hull, it includes a Magnus device (1), a mode conversion device, a detection system and a control system. The mode conversion device is connected to the side wall of the external hull and includes a horizontal movement mechanism (2) and a mechanical arm mechanism (3). One end of the mechanical arm mechanism (3) is connected to the horizontal movement mechanism (2) and the other end is connected to the Magnus device (1). It can drive the Magnus device (1) to move to the side and bottom of the external hull to respectively perform different working modes. The detection system is installed on the external hull and electrically connected to the control system for collecting and feeding back signals. The control system is installed on the external hull and electrically connected to the mode conversion device and the Magnus device (1) for issuing commands.
2. The integrated ship roll stabilization and land propulsion system based on the Magnus effect according to claim 1, characterized in that: The Magnus device (1) comprises a rotating column (11) and a driving motor (12) connected to each other, and the driving motor (12) is connected to a robotic arm mechanism (3).
3. The integrated ship roll stabilization and land propulsion system based on the Magnus effect according to claim 1, characterized in that: The horizontal movement mechanism (2) comprises a slide (21), a lead screw (22), a pair of lead screw motors (23) and a slide (24); the slide (21) is connected to the external hull side wall; both ends of the lead screw (22) are connected to the pair of lead screw motors (23); the pair of lead screw motors (23) are fixed on the slide (21); the slide (24) is threadedly connected to the lead screw (22); the lead screw (22) rotates to drive the slide (24) to slide along the slide (21).
4. The integrated ship roll stabilization and land propulsion system based on the Magnus effect according to claim 1, characterized in that: The mechanical arm mechanism (3) comprises a motor 1 (31), a connecting rod 1 (32), a motor 2 (33) and a connecting rod 2 (34) which are connected in sequence, and the motor 1 (31) and the motor 2 (33) are both self-locking motors.
5. The integrated ship roll stabilization and land propulsion system based on the Magnus effect according to claim 1, characterized in that: The detection system includes a pressure sensor located at the bottom of the bow of the external hull and water speed sensors on both sides of the external hull. The pressure sensor is used to feedback the pressure of the land ground, and the water speed sensor is used to detect the water speed of the water surface fed back by waves. The control system is provided with a pressure sensor threshold.
6. The integrated ship roll stabilization and land propulsion system based on the Magnus effect according to claim 5, characterized in that: When the pressure sensor feedback value is lower than the pressure sensor threshold, the system is in the anti-roll mode, and the control system controls the mechanical arm mechanisms (3) on both sides to drive the Magnus device (1) to move to symmetrical positions on both sides of the hull. The control system controls the Magnus device (1) to rotate and reduce the roll according to the feedback from the water speed sensor.
7. The integrated ship roll stabilization and land propulsion system based on the Magnus effect according to claim 5, characterized in that: When the pressure sensor feedback value is higher than the pressure sensor threshold, the system enters the land propulsion mode. The control system first controls the horizontal moving mechanisms (2) on both sides to drive the mechanical arm mechanisms (3) on both sides to move forward and backward respectively, and then controls the mechanical arm mechanisms (3) on both sides to drive the Magnus devices (1) on both sides to move to the front and rear arrangement just below the hull. The control system controls the Magnus devices (1) to rotate and propel on land.
8. The integrated ship roll stabilization and land propulsion system based on the Magnus effect according to claim 2, characterized in that: The outer wall of the rotating column (11) is provided with strip-shaped wear-resistant layers (13) and strip-shaped hydrophobic layers (14) in an alternating manner in the circumferential direction.
9. The integrated ship roll stabilization and land propulsion system based on the Magnus effect according to claim 8, characterized in that: The strip-shaped wear-resistant layer (13) is rubber.
10. The integrated ship roll stabilization and land propulsion system based on the Magnus effect according to claim 8, characterized in that: The strip-shaped hydrophobic layer (14) is made of organic silicon material or organic fluorine material.