Device and method for measuring the drift and bending deformation of sea ice induced by wind wave current

Abstract

The application is a kind of wind wave flow induced sea ice drift and bending deformation measuring device and analysis method, the device includes longitudinal fixing mechanism, winding clamping mechanism and strain sensor system, longitudinal fixing mechanism is respectively installed on control platform and strain sensor system, and is fixed downward through slidable motor driven ice surface special penetrating screw; winding clamping mechanism is used for adjusting the length of steel wire; strain sensor system converts the stress suffered by floating ice through the line displacement generated by the wire strain gauge; the analysis method of the application combines the line displacement measured by the strain sensor system with the sea ice bending deformation strength calculation method, calculates the stress suffered by the floating ice when the deformation occurs, and collects the real-time data information of all devices to comprehensively study the mechanical and physical properties of floating ice. The application uses automatic equipment to accurately monitor the response of floating ice when subjected to wind wave flow load, which provides support for better summarizing the mechanical and physical properties of floating ice.

Description

Technical Field

[0001] This invention belongs to the field of design and manufacturing technology of polar equipment for ships and marine engineering, specifically relating to a measurement device and analysis method for wind, wave and current induced sea ice drift and bending deformation. Background Technology

[0002] As a key near-Arctic nation, China became a permanent observer state of the Arctic Council in 2013, bearing significant responsibility for maintaining Arctic security, participating in Arctic governance, and promoting Arctic development. With global warming and shrinking Arctic ice, the Northeast Passage along Russia's northern coast is expected to be fully open, simultaneously making large-scale development of Arctic resources a realistic possibility. The Arctic shipping route, the shortest route between Eurasia and a maritime shortcut connecting the Pacific and Atlantic Oceans, will become a core shipping link between Asia, Europe, and North America once fully open, holding significant strategic importance. As Arctic sea ice continues to melt, the thickness and coverage of Arctic ice are shrinking, compounded by the increasingly frequent voyages of icebreakers and other polar vessels, resulting in the formation of numerous ice floes of varying sizes and thicknesses in the Arctic region, especially within shipping lanes. Therefore, to more fully and conveniently utilize the rich natural resources of the Arctic, research into the mechanical and physical properties of ice floes is essential.

[0003] Floating ice, also known as drift ice, is a general term for all ice that floats freely on the sea surface and drifts with the wind and ocean currents. The drift of floating ice and icebergs mainly depends on the combined effects of wind and ocean currents, and the drift direction and speed are quite complex. In different ocean currents, sea areas, and with varying thicknesses and sizes, especially in extreme environments like the polar regions, the drift speed and direction of floating ice vary greatly, making it difficult to find patterns between various loads and summarize the physical and mechanical properties of floating ice. Currently, academic research on the physical and mechanical properties of floating ice is still in its infancy, with most methods relying on measurements taken on the ice surface. This method is not only labor-intensive and inefficient, resulting in a small sample size, but also makes it difficult to monitor the various loads on the floating ice over long periods, control temporal consistency, and monitor and study smaller floating ice floes that are inconvenient for long-term personnel to land on.

[0004] Against this background, there is an urgent need for a measurement device and analysis method for wind, wave and current-induced sea ice drift and bending deformation, so as to accurately and efficiently measure and analyze the wind, wave and current environmental loads on floating ice of different sizes. Summary of the Invention

[0005] To address the shortcomings of existing technologies in measuring sea ice drift and bending deformation, this invention provides a device and analysis method for measuring and analyzing wind, wave and current-induced sea ice drift and bending deformation. The device employs fully automated equipment, enabling more efficient and accurate detection of various mechanical and physical properties of floating ice.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0007] This invention relates to a measurement device and analysis method for wind, wave, and current-induced sea ice drift and bending deformation. The device includes a longitudinal fixing mechanism, a wire-winding clamping mechanism, and a strain sensor system. The longitudinal fixing mechanism is mounted on both the control platform and the strain sensor system, and is fixed downwards by a sliding motor-driven ice-specific penetrating screw. The wire-winding clamping mechanism is used to adjust the length of the steel wire according to the actual situation. The strain sensor system calculates the stress on the floating ice by converting the linear displacement generated by the steel wire strain gauge. This invention also provides an analysis method for sea ice drift and bending deformation. Specifically, it combines the linear displacement measured by the strain sensor system with a sea ice bending deformation strength calculation method to calculate the stress on the floating ice when it deforms. It also collects real-time data from a positioning and wind load monitoring system and a high-precision all-terrain scanner to more comprehensively study the mechanical and physical properties of the floating ice.

[0008] The control platform includes a positioning and wind load monitoring system, an integrated control box, a high-precision all-terrain scanner, two longitudinal control platform members, and two transverse control platform members. The positioning and wind load monitoring system includes a Beidou positioning instrument, a polar high-speed wind vane, and an assembled monitoring system support. The polar high-speed wind vane monitors the wind load on the ice floes and feeds back real-time data to a remote data recording server. The high-precision all-terrain scanner scans the ice floe terrain every 12 hours and feeds back the data to a remote computer. When the terrain cracks or melts to the point where monitoring is no longer suitable, an early warning is issued, and the device is retrieved based on the location displayed by the Beidou positioning instrument. The control part and electronic equipment of this invention are equipped with relevant programs, communication modules, and electrical components, all housed in an integrated control box installed on one side of the main control platform. The integrated control box can control the operation and function of longitudinal fixing mechanisms, rotating mechanisms, and other equipment or structures.

[0009] Furthermore, the longitudinal fixing mechanism includes a slide rail type electric drill and a grooved motor frame. The slide rail type electric drill includes two linear slide rails, a special ice-penetrating screw, a high-torque inner four-corner sleeve, and a two-phase stepper motor. Two linear grooves are engraved on the inner side walls of the grooved motor frame. The slide rail type electric drill is mounted on the grooved motor frame and is driven by the two linear slide rails on both sides to slide up and down along the two linear grooves on the inner wall. The special ice-penetrating screw is installed inside the high-torque inner four-corner sleeve, which is installed on the rotor of the two-phase stepper motor. Thus, the high-torque inner four-corner sleeve rotates along with the rotor, drilling downwards into the ice layer to achieve the purpose of fixing the device. The grooved motor frames are detachably connected to each other via strain sensor system short rods, longitudinal control platform members, and transverse control platform members to form a fixing frame, ensuring the overall stability of the device structure during operation of the slide rail type electric drill.

[0010] The winding clamping mechanism includes a ratchet wire feeding mechanism, an electric wire take-up mechanism, a winding motor support, and a right-angle fixed hinge. The winding machine support is detachably mounted on the right side wall of the assembled monitoring system bracket via screws and the right-angle fixed hinge. The ratchet wire feeding mechanism and the electric wire take-up mechanism are respectively mounted on both sides of the winding machine support. The ratchet wire feeding mechanism includes a double-toothed pawl, a cylindrical handle, and a ratchet. Before measurement begins, the ratchet is controlled to rotate and release the steel wire. When the length of the released steel wire is suitable for the size of the monitored ice floe, the cylindrical handle is moved to lower the double-toothed pawl and lock the ratchet. The electric wire take-up mechanism includes a two-phase slow-speed motor and a winding machine sleeve. The winding machine sleeve is detachably mounted on the rotor of the two-phase slow-speed motor. The ratchet is mounted on the upper end of the winding machine sleeve. When the measurement is completed and the retrieval device is ready, or when it is necessary to shorten the length of the stainless steel wire, the electric wire take-up mechanism is controlled by the integrated control box to rotate clockwise to retract the wire.

[0011] Furthermore, the strain sensor system includes a sensor support, a wire strain gauge, a digital sensor, and two short rods for the strain sensor system. The sensor support is mounted on the ice surface via longitudinal fixing mechanisms on both sides. The wire strain gauge is detachably mounted on the sensor support via bolts. The front end of the sensor system is connected to the wire strain gauge, and the other end is detachably mounted on the sensor support with screws. The wire strain gauge includes a stainless steel wire, a pressure head spring, a spring strain gauge, and a wire threader. The sensor system includes a potentiometer-type displacement sensor and a voltage sensor. When the floating ice undergoes bending deformation under various loads, the displacement generated by the wire strain gauge is captured by the potentiometer-type displacement sensor and converted into an electrical signal, which is then transmitted to the voltage sensor. The voltage sensor converts the received electrical signal into a DC voltage and isolates and outputs a digital signal to a remote computer system data recording server. The signal is then used for calculation and analysis based on the sea ice bending deformation strength calculation method provided by this invention.

[0012] The beneficial effects of this invention are as follows: Compared with existing methods for monitoring various mechanical and physical data of floating ice using manual methods, the wind, wave and current-induced sea ice drift and bending deformation measurement device and analysis method provided by this invention adopt fully automated equipment, are easy to install, realize remote computer control, and can track, locate and recover the device when necessary. This allows for more efficient, continuous and accurate monitoring of various mechanical and physical properties of floating ice, providing support for better summarizing the mechanical and physical properties of floating ice. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the device structure described in this invention.

[0014] Figure 2 This is an exploded view of the structure of the device described in this invention.

[0015] Figure 3 This is a schematic diagram of the control platform structure described in this invention.

[0016] Figure 4 This is an exploded view of the positioning and wind load monitoring system described in this invention.

[0017] Figure 5 This is an exploded view of the longitudinal fixing mechanism structure described in this invention.

[0018] Figure 6 This is a schematic diagram of the winding clamping mechanism described in this invention.

[0019] Figure 7 This is a schematic diagram of the strain sensor system structure described in this invention.

[0020] Figure 8 This is a schematic diagram of the structure of the digital sensor and wire strain gauge described in this invention.

[0021] Figure 9 This is a flowchart illustrating the operation of this invention.

[0022] In the attached diagram, 1: longitudinal fixing mechanism; 2: winding clamping mechanism; 3: strain sensor system; 4: control platform; 1-1: slide rail type electric drill; 1-2: slide groove type motor frame; 1-1-1: linear slide rail; 1-1-2: ice surface special penetrating screw; 1-1-3: high torque inner four corner sleeve; 1-1-4: two-phase stepper motor; 2-1: ratchet wire feeding mechanism; 2-2: electric wire taking-up mechanism; 2-3: right angle fixing hinge; 2-1-1: double tooth pawl; 2-1-2: cylindrical handle; 2-1-3: ratchet; 2-2-1: two-phase slow speed motor; 2-2-2: winding machine sleeve; 2-2-3: winding motor support; 3-1: Sensor support; 3-2: Wire strain gauge; 3-3: Digital sensor; 3-4: Short rod for strain sensor system; 3-2-1: Stainless steel wire; 3-2-2: Indenter spring; 3-2-3: Spring strain gauge; 3-2-4: Wire threader; 3-3-1: Potentiometer displacement sensor; 3-3-2: Voltage sensor; 4-1: Positioning and wind load monitoring system; 4-2: Integrated control box; 4-3: High-precision all-terrain scanner; 4-4: Longitudinal member of control platform; 4-5: Lateral member of control platform; 4-1-1: Beidou positioning device; 4-1-2: Polar high wind speed and direction indicator; 4-1-3: Assembled monitoring system bracket. Detailed Implementation

[0023] The embodiments of the present invention will be disclosed below with reference to the drawings. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details are not intended to limit the present invention. That is, in some embodiments of the present invention, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0024] This invention relates to a measuring device and analysis method for wind, wave, and current-induced sea ice drift and bending deformation, which can be used to measure and analyze the bending deformation of floating ice. The structure of the device is as follows: Figure 1 and Figure 2 As shown.

[0025] The device includes a longitudinal fixing mechanism 1, a wire clamping mechanism 2, a strain sensor system 3, and a control platform 4. Six longitudinal fixing mechanisms 1 are mounted on the control platform 4 and the strain sensor system 3, with four mounted on the control platform 4. The longitudinal fixing mechanisms 1 form a fixed frame connected by connecting rods. Two strain sensor systems 3 are mounted on each other and connected by rods to ensure the overall stability of the device structure during operation. The longitudinal movement of the mechanism is driven by a motor, thereby fixing the strain sensor system 3 and the control platform 4 to the surface of the ice floe. The wire clamping mechanism 2 is mounted on the support of the control platform 4 and is used to adjust the length of the steel wire according to the actual situation. The strain sensor system 3 is connected to the control platform 4 by the steel wire jointly pulled by the wire clamping mechanism 2 and the strain sensor system 3, and is used to calculate the bending stress on the ice floe by the generated linear displacement.

[0026] The specific conversion method is as follows: Establish a three-dimensional rectangular coordinate system O-xyz, where the O-xy plane is located in the neutral layer of sea ice, and the z-axis is vertically upward and positive. The vertical coordinate of the steel wire is z. g After the device is installed, the initial length of the steel wire is L0. During the sea ice deformation process, the length of the steel wire changes dynamically with time. Let the length of the steel wire at time t be L. t Based on the strain calculation method, we can obtain z at this moment. g The strain at the vertical coordinate is ε g =(L t -L0) / L0. Due to the material properties of sea ice itself, the bending deformation of sea ice induced by environmental loads such as wind, waves, and currents is small, satisfying the planar section assumption. Therefore, the value of sea ice at any position z can be obtained. i The strain at point is ε i =z i ε g / z g After inputting the elastic modulus and Poisson's ratio of sea ice, the stress response at any location on the sea ice can be obtained according to Hooke's Law.

[0027] like Figure 3 and Figure 4As shown, the control platform 4 includes a support plate, on which are mounted four longitudinal control platform members 4-4, a positioning and wind load monitoring system 4-1, an integrated control box 4-2, a high-precision all-terrain scanner 4-3, and four transverse control platform members 4-5. The positioning and wind load monitoring system 4-1 monitors the wind load on the ice floes and feeds back real-time data to the integrated control box 4-2. The positioning and wind load monitoring system 4-1 is equipped with a 5G communication module, which monitors the wind load and location information of the ice floes and uploads real-time data to a remote computer system data recording server. The high-precision all-terrain scanner 4-3 is also equipped with a 5G communication module, which scans the ice floe terrain every 12 hours and uploads data to the remote computer system data recording server. When the terrain cracks or melts to the point where monitoring is no longer suitable, an early warning is issued, and the device is retrieved based on the location displayed by the Beidou positioning device 4-1-1.

[0028] The control unit and electronic equipment of the present invention are equipped with switch control knobs, power switches, and circuits, all of which are installed in an integrated control box 4-2 installed on one side of the main control platform 4. The integrated control box 4-2 can control the operation and work of equipment or structures such as the longitudinal fixing mechanism 1 and the winding clamping mechanism 2. By simply pressing the corresponding control button, the sliding rail electric drill 1-1 can be controlled to penetrate the ice layer downwards, and the electric winding mechanism 2-2 can be controlled to retract the stainless steel wire 3-2-1 by rotating the button.

[0029] like Figure 5 As shown, each of the longitudinal fixing mechanisms 1 includes a grooved motor frame 1-2 and a rail-mounted electric drill 1-1 mounted on the grooved motor frame 1-2. The rail-mounted electric drill 1-1 includes two linear rails 1-1-1, a special ice-penetrating screw 1-1-2, a high-torque inner four-corner sleeve 1-1-3, and a two-phase stepper motor 1-1-4. Two linear grooves are engraved on the inner two side walls of the grooved motor frame 1-2. The rail-mounted electric drill 1-1 consists of two linear rails 1-1-1. The linear slide rail 1-1-1 drives the two linear slide grooves on the inner side wall of the slide-type motor frame 1-2 to slide up and down. The ice surface special penetrating screw 1-1-2 is installed in the high torque inner four corner sleeve 1-1-3. The high torque inner four corner sleeve 1-1-3 is installed on the rotor of the two-phase stepper motor 1-1-4. The high torque inner four corner sleeve 1-1-3 drives the ice surface special penetrating screw 1-1-2 to rotate together with the rotor, drilling downward into the ice layer to achieve the purpose of fixing the device.

[0030] like Figure 3 The four longitudinal fixing mechanisms installed on the control platform 4 shown are connected by four transverse control platform members 4-5 and four longitudinal control platform members 4-4 to form a fixed frame, so as to ensure the overall stability of the device structure when the longitudinal fixing mechanism 1 is working.

[0031] like Figure 6 As shown, the winding clamping mechanism 2 includes a ratchet wire feeding mechanism 2-1, an electric wire take-up mechanism 2-2, and a right-angle fixed hinge plate 2-3. The electric wire take-up mechanism 2-2 includes a winding machine support 2-2-3 that is detachably mounted on the right side wall of the assembled monitoring system bracket 4-1-3 by screws and the right-angle fixed hinge plate 2-3. The ratchet wire feeding mechanism 2-1 and the electric wire take-up mechanism 2-2 are respectively mounted on both sides of the winding motor support 2-2-3.

[0032] The ratchet wire release mechanism 2-1 includes a double-toothed pawl 2-1-1, a cylindrical handle 2-1-2, and a ratchet 2-1-3. Before measurement begins, the ratchet 2-1-3 is rotated to release the steel wire 3-2-1. When the length of the released steel wire 3-2-1 is suitable for the size of the ice floe being monitored, the cylindrical handle 2-1-2 is then moved to lower the double-toothed pawl 2-1-1 and engage the ratchet 2-1-3. The electric wire take-up mechanism 2-2 includes a two-phase slow-speed motor 2-2-1, a winding machine sleeve 2-2-2, and a winding machine support. The winding machine sleeve 2-2-2 is detachably mounted on the rotor of the two-phase slow motor 2-2-1. The ratchet 2-1-3 is mounted on the end of the winding machine sleeve 2-2-2. When the measurement is completed and the retraction device is ready or the length of the stainless steel wire 3-2-1 needs to be shortened, the electric winding mechanism 2-2 is connected to the integrated control box 4-2 by a circuit. When the integrated control box 4-2 is opened, the button is turned to generate an electrical frequency pulse, which controls the electric winding mechanism 2-2 to rotate clockwise and retract.

[0033] like Figure 7 and Figure 8 As shown, the strain sensor system 3 includes a sensor support 3-1, a wire strain gauge 3-2, a digital sensor 3-3, and two strain sensor system short rods 3-4. The sensor support 3-1 is installed on the ice surface by longitudinal fixing mechanisms 1 on both sides. The wire strain gauge 3-2 is detachably installed on the sensor support 3-1 by bolts. The front end of the sensor system 3-3 is connected to the wire strain gauge 3-2, and the other end is detachably installed on the sensor support 3-1 by screws.

[0034] The wire strain gauge 3-2 includes a spring strain gauge 3-2-3, with a pressure head spring 3-2-2 on one side of the spring strain gauge 3-2-3. One side of the pressure head spring 3-2-2 is connected to a stainless steel wire 3-2-1. A wire threader 3-2-4 is installed on one end of the stainless steel wire 3-2-1. The digital sensor 3-3 includes a potentiometer-type displacement sensor 3-3-1 installed on the spring strain gauge 3-2-3. The potentiometer-type displacement sensor 3-3-1 is connected to a voltage sensor 3-3-2. When the floating ice undergoes bending deformation under various loads, the displacement generated by the wire strain gauge 3-2 is captured by the potentiometer-type displacement sensor 3-3-1 and converted into electrical energy, which is then transmitted to the voltage sensor 3-3-2. The received electrical energy is converted into DC voltage and isolated and output as a digital signal to the computer system, which then performs calculations and analyses based on the sea ice bending deformation strength method. For example, when faced with a piece of sea ice of normal size, we first establish a three-dimensional Cartesian coordinate system for it, where the O-xy plane is located in the neutral layer of the sea ice, and the z-axis is vertically upward and positive. The vertical coordinate of the steel wire is z. g After the device is installed, the initial length of the steel wire is set to L0. During the sea ice deformation process, the length of the steel wire changes dynamically with time. Let the length of the steel wire at time t be L. t According to the strain calculation formula, we can obtain z at this moment. g The strain at the vertical coordinate is ε g =(L t -L0) / L0. Due to the material properties of sea ice itself, the bending deformation of sea ice induced by environmental loads such as wind, waves, and currents is small, satisfying the planar section assumption. Therefore, the value of sea ice at any position z can be obtained. i The strain at point is ε i =z i ε g / z g After inputting the corresponding sea ice elastic modulus and Poisson's ratio, the stress response at any location on the sea ice can be obtained according to Hooke's Law.

[0035] like Figure 9As shown, this invention also provides a method for measuring and analyzing wind, wave, and current-induced sea ice drift and bending deformation. The specific analysis method is as follows: First, before the measurement begins, the length of the stainless steel wire 3-2-1 required for the actual situation is reserved using the winding clamping mechanism 2; second, the longitudinal fixing mechanism 1 is controlled by the integrated control box 4-2 to fix the strain sensor system 3 and the control platform 4 on the ice layer on the surface of the floating ice. The device is tested, and when the data acquisition of all electronic devices is stable and normal, the measurement personnel can leave; finally, all the data of the floating ice's position measured by the Beidou positioning instrument, the wind load on the floating ice measured by the base high-speed anemometer, and the real-time data information monitored by the high-precision all-terrain scanner are all collected to the remote computer system data recording server for analysis, providing support for summarizing the mechanical and physical properties of the floating ice. Finally, according to the data fed back by the high-precision all-terrain scanner 4-3, when the measured floating ice is not suitable for monitoring, an early warning is issued, and the device is retrieved according to the position displayed by the Beidou positioning instrument 4-1-1.

[0036] Compared to traditional methods of manually measuring the load data of floating ice, this invention is easier to install, uses automated equipment, and more efficiently, continuously, and accurately monitors the response of floating ice to wind, waves, and current loads, providing support for better summarizing the mechanical and physical properties of floating ice.

[0037] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A device for measuring sea ice drift and bending deformation induced by wind, waves and currents, comprising a control platform (4), characterized in that: A wire clamping mechanism (2) is installed on the support of the control platform (4). The length of the wire is adjusted according to the actual scene. The measuring device also includes a longitudinal fixing mechanism (1) and a strain sensor system (3). There are six longitudinal fixing mechanisms (1). Four of the longitudinal fixing mechanisms (1) are installed on the control platform (4) and the four longitudinal fixing mechanisms (1) are connected to each other by connecting rods to form a fixed frame. Two of the longitudinal fixing mechanisms (1) are installed on the strain sensor system (3) and are connected to each other by rods. The longitudinal fixing mechanism is driven to move longitudinally by a two-phase stepper motor (1-1-4) to fix the strain sensor system (3) and the control platform (4) on the surface of the floating ice. The strain sensor system (3) and the control platform (4) are connected to each other by the wire pulled by the wire clamping mechanism (2) and the strain sensor system (3) to calculate the stress on the floating ice by the generated linear displacement. The control platform (4) includes a support plate. Four longitudinal rods (4-4) of the control platform are set on the support plate. The system comprises a position and wind load monitoring system (4-1), an integrated control box (4-2), a high-precision all-terrain scanner (4-3), and four horizontal control platform members (4-5). The position and wind load monitoring system (4-1) is equipped with a 5G communication module, which monitors the wind load and position of the ice floes and uploads real-time data to a remote computer system data recording server. The high-precision all-terrain scanner (4-3) is also equipped with a 5G communication module, which scans the ice floe terrain every 12 hours and uploads the data to the remote computer system data recording server. The integrated control box (4-2) controls the operation of the longitudinal fixing mechanism (1) and the winding clamping mechanism (2). The positioning and wind load monitoring system (4-1) includes an assembled monitoring system bracket (4-1-3) fixed on the support plate of the control platform (4). A monitoring system platform is set above the assembled monitoring system bracket (4-1-3). A polar high wind speed wind vane (4-1-2) is set on one side above the monitoring system platform. A Beidou positioning instrument (4-1-1) is set on the other side above the monitoring system platform.

2. The measuring device for wind, wave, and current-induced sea ice drift and bending deformation according to claim 1, characterized in that: Each of the longitudinal fixing mechanisms (1) includes a grooved motor frame (1-2) and a rail-mounted electric drill (1-1) mounted on the grooved motor frame (1-2). The rail-mounted electric drill (1-1) includes two linear rails (1-1-1), a special ice-penetrating screw (1-1-2), a high-torque inner four-corner sleeve (1-1-3), and a two-phase stepper motor (1-1-4). Two linear grooves are engraved on the inner two side walls of the grooved motor frame (1-2). The rail-mounted electric drill (1-1) The device is driven by two linear slide rails (1-1-1) to slide up and down along two linear slide grooves on the inner side wall of the slide groove type motor frame (1-2). The ice surface special penetrating screw (1-1-2) is installed in the high torque inner four corner sleeve (1-1-3). The high torque inner four corner sleeve (1-1-3) is installed on the rotor of the two-phase stepper motor (1-1-4). The high torque inner four corner sleeve (1-1-3) drives the ice surface special penetrating screw (1-1-2) to rotate together with the rotor, drilling downward into the ice layer to achieve fixation.

3. The measuring device for wind, wave, and current-induced sea ice drift and bending deformation according to claim 1, characterized in that: The strain sensor system (3) includes a sensor support (3-1), which is mounted on the ice surface by longitudinal fixing mechanisms (1) on both sides. A wire strain gauge (3-2) is detachably mounted on the sensor support (3-1) by bolts. The wire strain gauge (3-2) is connected to one end of a digital sensor (3-3). The other end of the digital sensor (3-3) is detachably mounted on the sensor support (3-1) by screws. The strain sensor system (3) also includes strain sensor system short rods (3-4) arranged on both sides of the sensor support (3-1).

4. The measuring device for wind, wave, and current-induced sea ice drift and bending deformation according to claim 3, characterized in that: The wire strain gauge (3-2) includes a spring strain gauge (3-2-3), with a pressure head spring (3-2-2) on one side of the spring strain gauge (3-2-3). One side of the pressure head spring (3-2-2) is connected to a stainless steel wire (3-2-1). A wire threader (3-2-4) is installed on one end of the stainless steel wire (3-2-1). The digital sensor (3-3) includes a potentiometer-type displacement sensor (3-3-1) installed on the spring strain gauge (3-2-3). The potentiometer-type displacement sensor (3-3-1) is connected to a voltage sensor (3-3-2). When the floating ice undergoes bending deformation under various loads, the displacement generated by the wire strain gauge (3-2) is captured by the potentiometer-type displacement sensor (3-3-1) and converted into electrical energy, which is then transmitted to the voltage sensor (3-3-2). The received electrical energy is converted into DC voltage and isolated and output as a digital signal to the computer system. The system then performs calculations and analyses based on the sea ice bending deformation strength calculation method.

5. The measuring device for wind, wave, and current-induced sea ice drift and bending deformation according to claim 4, characterized in that: The method for calculating the bending deformation strength of sea ice is as follows: Establish a three-dimensional rectangular coordinate system ,in The plane is located in the neutral layer of sea ice. The axis is vertically upward and positive; the vertical coordinate of the steel wire is... After the device is installed, the initial length of the steel wire is The length of the steel wire changes dynamically with time during sea ice deformation. Let the length of the steel wire at time t be denoted as . According to the strain calculation formula, we can obtain the result at this moment. The strain at the vertical coordinate is Due to the material properties of sea ice itself, the bending deformation of sea ice induced by wind, waves, and current environmental loads is small, satisfying the planar section assumption. Based on this, the bending deformation of sea ice at any position can be determined. The strain at the point is After inputting the elastic modulus and Poisson's ratio of sea ice, the stress response at any location on the sea ice is obtained according to Hooke's law.

6. The measuring device for wind, wave, and current-induced sea ice drift and bending deformation according to claim 5, characterized in that: The winding clamping mechanism (2) includes a ratchet wire feeding mechanism (2-1), an electric wire take-up mechanism (2-2), and a right-angle fixed hinge (2-3). The electric wire take-up mechanism (2-2) includes a winding machine support (2-2-3) detachably mounted on the control platform (4) by screws and the right-angle fixed hinge (2-3). The ratchet wire feeding mechanism (2-1) and the electric wire take-up mechanism (2-2) are respectively mounted on both sides of the winding machine support (2-2-3). A two-phase geared motor (2-2-1) is provided on one side of the winding machine support (2-2-3). The winding machine sleeve (2-2-2) is detachably mounted on the rotor of the two-phase slow motor (2-2-1). The ratchet wire feeding mechanism (2-1) includes a ratchet mounted on the end of the winding machine sleeve (2-2-2). (2-1-3) The ratchet (2-1-3) is located on the other side of the winding machine support (2-2-3). A double-toothed pawl (2-1-1) is located on the other side of the winding machine support (2-2-3). A cylindrical handle (2-1-2) is located on the double-toothed pawl (2-1-1). Before the measurement begins, the ratchet (2-1-3) is rotated to release the stainless steel wire (3-2-1). When the length of the released stainless steel wire (3-2-1) is appropriate to the size of the ice floe being monitored, the cylindrical handle (2-1-2) is moved to lower the double-toothed pawl (2-1-1) and lock the ratchet (2-1-3). When the length of the stainless steel wire (3-2-1) needs to be shortened after the measurement, the electric winding mechanism (2-2) is controlled by the integrated control box (4-2) to rotate clockwise to retract the wire.

7. A method for analyzing bending deformation using the wind, wave, and current-induced sea ice drift and bending deformation measuring device as described in claim 1, characterized in that: The specific analysis method is as follows: First, before the measurement begins, the wire clamping mechanism (2) is used to reserve the length of the stainless steel wire (3-2-1) required by the actual situation; second, the longitudinal fixing mechanism (1) is controlled by the integrated control box (4-2) to fix the strain sensor system (3) and the control platform (4) on the ice layer on the surface of the floating ice. After adjusting the parameters and data of all electronic components or equipment, the measurement personnel can leave at this time; finally, the data measured by the polar high wind speed wind vane (4-1-2), the Beidou positioning instrument (4-1-1) and the high-precision all-terrain scanner (4-3) are all collected to the remote computer system data recording server for analysis, providing support for summarizing the mechanical and physical properties of the floating ice; finally, according to the data fed back by the high-precision all-terrain scanner (4-3), when the measured floating ice is not suitable for monitoring, an early warning is issued, and the recovery device is retrieved according to the position displayed by the Beidou positioning instrument (4-1-1).

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