CN-120927414-B - Submerged jet flow and mechanical impact cooperative ice damage test device

CN120927414BCN 120927414 BCN120927414 BCN 120927414BCN-120927414-B

Abstract

The application provides a submerged jet and mechanical impact cooperative ice damage test device which comprises an ice material clamping system, a visual temperature control submerged cavity, a mechanical motion control system and a multi-nozzle injection system, wherein the mechanical motion control system comprises a servo electric cylinder and a servo motor control system, the servo motor control system comprises a programmable logic controller, logic instructions of the mechanical motion control system are arranged in the programmable logic controller and are used for controlling an impact head to switch a single output mode, a reciprocating output mode and execute return origin, limit protection and timing triggering functions, the multi-nozzle injection system comprises a high-pressure water pump, a water supply tank, a target distance adjusting support frame, a multi-nozzle injection coordination cavity and a jet nozzle, and the control system of the high-pressure water pump is connected with the programmable logic controller to form a cooperative control system with the mechanical motion control system. The application combines the advantages of mechanical impact and high-pressure water jet in the aspect of impacting and melting ice materials, and can realize the combined ice damage test of jet damage and mechanical impact.

Inventors

ZHANG TIANYI
LONG XINPING
ZHANG ZUTI
WANG XIAOCHUAN
Chai Tongshan
WANG LE

Assignees

武汉大学

Dates

Publication Date: 20260508
Application Date: 20250725

Claims (10)

1. The submerged jet and mechanical impact cooperative ice damage test device is characterized by comprising an ice material clamping system, a visual temperature control submerged cavity, a mechanical motion control system and a multi-nozzle injection system; the visual temperature control submerged cavity comprises a submerged cavity body and an electric installation platform, and the ice material clamping system is erected and fixed in the submerged cavity body; The mechanical motion control system comprises a servo electric cylinder and a servo motor control system, wherein the servo electric cylinder and the servo motor control system are fixedly connected to a lower plate flange of a submerged cavity, and a push rod transition joint, a sensor cushion block, a load sensor, a sensor connection pressing block and an impact head are sequentially connected to a push rod of the servo electric cylinder from bottom to top; The multi-nozzle injection system comprises a high-pressure water pump, a water supply tank, a target distance adjusting support frame, a multi-nozzle injection coordination cavity and a plurality of jet nozzles, wherein a control system of the high-pressure water pump is connected with a programmable logic controller and forms a cooperative control system with a mechanical motion control system.
2. The submerged jet and mechanical impact synergistic ice damage test device according to claim 1, wherein the single output mode refers to that the impact head is controlled to perform one-time impact damage on ice materials, and the mechanical impact output speed and the upper output limit are preset, and the impact head is contacted with the damaged ice materials at a constant speed; If the upper protection limit is reached within the upper limit range of the output force, the damage is determined to be successful; if the upper limit of the output force is reached in the process of damaging the ice material by constant-speed contact, the output speed is reduced to zero, and the constant output force is maintained, the damage is determined to be unsuccessful.
3. The submerged jet and mechanical impact cooperative ice damage test device according to claim 1, wherein the reciprocating output mode means that the impact head is controlled to perform repeated reciprocating impact damage on ice materials which are difficult to damage, and constant output maintaining time is preset at the stage after the constant-speed contact damage ice materials reach the upper output limit; If the upper protection limit is reached within the upper limit range of the output force, the damage is determined to be successful; if the execution speed is constant at zero within the preset time range, the damage is judged to be unsuccessful, and a second impact damage preparation action is executed according to the preset return distance, wherein the round trip impact times are also preset.
4. The submerged jet and mechanical impact cooperative ice damage test device according to claim 1 is characterized in that a servo motor is internally provided with an encoder, a speed observer and a torque sensor, the servo controller is used for controlling the servo motor to complete accurate position, speed and torque instructions, and the encoder, the speed observer and the torque sensor which are internally provided with the servo motor feed back the position, the speed and the torque to the servo controller to achieve accurate closed-loop control, so that the servo motor cylinder is controlled to complete accurate ice damage motion control.
5. The submerged jet and mechanical impact synergistic ice damage test device of claim 1, wherein the side of the multi-nozzle spray coordination chamber is provided with a plurality of blockage removal connectors at different positions.
6. The submerged jet and mechanical impact collaborative ice damage test device according to any one of claims 1-5, wherein the submerged cavity comprises four transparent acrylic glass plates which are surrounded on four sides and detachably arranged on a square framework, and a low-pressure water inlet, an overflow notch, a lower water outlet, an electric cylinder push rod inlet and a jet power water inlet are arranged on the submerged cavity; when the temperature sensor detects that the water temperature in the submerged cavity is higher than the preset temperature, the valves on the lower water outlet and the low-pressure water inlet are controlled to be opened, and low-temperature water is supplemented through the low-pressure water inlet so as to meet the test temperature requirement.
7. A submerged jet and mechanical impact co-operation ice damage testing device according to any of claims 1-5, wherein the ice material gripping system comprises: The ice table pressing plate and the ice table bottom plate are arranged in parallel, and gaps are preset in the middle of the ice table pressing plate and the ice table bottom plate; The ice table pressing plate is provided with at least four groups of fixing screws and hexagonal nuts, and the fixing screws and the hexagonal nuts are used for fixing the ice table pressing plates and the ice table bottom plate which are arranged at intervals.
8. The submerged jet and mechanical impact synergistic ice damage test device according to claim 7, wherein two positioning blocks arranged on two sides of an opening of the ice platform bottom plate are arranged on one side of the ice platform bottom plate, which is close to the ice platform bottom plate, arc grooves are formed on one side of the two positioning blocks, which is close to the positioning blocks, and ice materials to be tested are arranged in the space enclosed by the two arc grooves.
9. The submerged jet and mechanical impact co-operating ice damage testing device of claim 7, further comprising: the reducing washers are provided with a plurality of concentric stepped circular tables, and the middle parts of the reducing washers are also provided with openings for adapting to ice materials to be tested with different sizes.
10. The submerged jet and mechanical impact co-operating ice damage testing device of claim 7, further comprising: lifting lugs are fixedly connected to four corners of the ice table bottom plate.

Description

Submerged jet flow and mechanical impact cooperative ice damage test device Technical Field The application relates to the technical field of ice damage test research, in particular to a submerged jet and mechanical impact synergistic ice damage test device. Background Ice material damage is a hotspot of current scientific research, the safety and controllability of single mechanical impact ice damage face serious challenges at present, and a composite ice damage method is required to be researched in order to improve ice damage efficiency. The test is an important means for researching the ice damage mechanism, and a submerged jet and mechanical impact cooperative ice damage test device is not researched at present, so that a set of device for developing the ice damage test is needed to develop the submerged jet and mechanical impact cooperative ice damage test research. Disclosure of Invention The application provides test conditions for developing ice damage theory research, and promotes the submerged jet flow and mechanical impact ice damage method to realize engineering application. The application provides a submerged jet and mechanical impact cooperative ice damage test device which adopts the following technical scheme: a submerged jet and mechanical impact synergistic ice damage test device comprises an ice material clamping system, a visual temperature control submerged cavity, a mechanical motion control system and a multi-nozzle injection system; the visual temperature control submerged cavity comprises a submerged cavity body and an electric installation platform, and the ice material clamping system is erected and fixed in the submerged cavity body; The mechanical motion control system comprises a servo electric cylinder and a servo motor control system, wherein the servo electric cylinder and the servo motor control system are fixedly connected to a lower plate flange of a submerged cavity, and a push rod transition joint, a sensor cushion block, a load sensor, a sensor connection pressing block and an impact head are sequentially connected to a push rod of the servo electric cylinder from bottom to top; The multi-nozzle injection system comprises a high-pressure water pump, a water supply tank, a target distance adjusting support frame, a multi-nozzle injection coordination cavity and a plurality of jet nozzles, wherein a control system of the high-pressure water pump is connected with a programmable logic controller and forms a cooperative control system with a mechanical motion control system. Furthermore, the single output mode refers to that the impact head is controlled to perform one-time impact damage on the ice material, the mechanical impact output speed and the upper output limit are preset, and the impact head is contacted with the damaged ice material at a constant speed; If the upper protection limit is reached within the upper limit range of the output force, the damage is determined to be successful; if the upper limit of the output force is reached in the process of damaging the ice material by constant-speed contact, the output speed is reduced to zero, and the constant output force is maintained, the damage is determined to be unsuccessful. Furthermore, the reciprocating output mode refers to that the impact head is controlled to perform repeated reciprocating impact damage to the ice material which is difficult to damage, and after the constant-speed contact damage ice material reaches the upper limit of the output, the constant-output maintaining time at the stage is preset; If the upper protection limit is reached within the upper limit range of the output force, the damage is determined to be successful; If the execution speed is constant at zero within the preset time range, the damage is determined to be unsuccessful, and the second impact damage preparation action is executed according to the preset return distance, wherein the round trip impact times can be preset. And the servo controller is used for controlling the servo motor to finish accurate position, speed and torque instructions, and the encoder, the speed observer and the torque sensor arranged in the servo motor feed back the position, the speed and the torque to the servo controller to realize accurate closed-loop control, so as to control the servo motor cylinder to finish accurate ice damage motion control. Furthermore, the side surface of the multi-nozzle spray coordination cavity is provided with a plurality of blockage removing connectors at different positions. The submerged cavity comprises four transparent acrylic glass plates which are surrounded on four sides and detachably arranged on a square framework, and a low-pressure water inlet, an overflow notch, a lower water outlet, an electric cylinder push rod inlet and a jet power water inlet are arranged on the submerged cavity; when the temperature sensor detects that the water temperature in the submerged cavity is higher than the preset tempera