A Multidimensional High-Energy Sound Beam Stress Control Method

Abstract

This application discloses a multidimensional high-energy acoustic beam stress control method. The method includes: setting corresponding installation angles for multiple ultrasonic exciters based on the pre-detected residual stress distribution of the component to be controlled; setting control signal parameters on the control interface of the ultrasonic stress controller; transmitting control signals from the multiple ultrasonic exciters to control the residual stress in the component according to the control signal parameters; detecting the residual stress in the component at preset working intervals; and ending the control operation when the detected residual stress value meets the preset stress standard. This method can control the residual stress of metal components in the field without damaging them, achieving rapid and effective reduction and homogenization of residual stress in metal components.

Description

Technical Field

[0001] This invention relates to the field of materials performance technology, and specifically to a multidimensional high-energy sound beam stress control method. Background Technology

[0002] Commonly used traditional methods for eliminating residual stress, such as heat treatment, mechanical impact, and rigid fixing, are no longer applicable due to their time-consuming, energy-intensive, and potentially damaging nature. Therefore, there is an urgent need for a multi-dimensional high-energy acoustic beam stress control device that can be easily installed on components to rapidly and effectively reduce and homogenize residual stress, allowing for on-site control of residual stress without damaging components or pipes.

[0003] High-energy acoustic beam manipulation technology can quickly and effectively eliminate and homogenize residual stress in components. It has advantages such as low requirements on component surface, easy generation of various waveforms, short processing time, low energy consumption, and no damage to components. Therefore, it can be widely used in the elimination and homogenization of service stress and residual stress in railway rails. Thus, a multidimensional high-energy acoustic beam manipulation stress method is proposed to eliminate residual stress in service rails. Summary of the Invention

[0004] This invention provides a multidimensional high-energy sound beam stress control method, which aims to achieve rapid and effective reduction and homogenization of residual stress in metal components, and to control residual stress in the field without damaging the metal components.

[0005] To achieve the above objectives, this invention provides a multidimensional high-energy sound beam stress control method, employing the following technical solution:

[0006] Based on the pre-detected residual stress distribution of the component to be controlled, set the corresponding installation angles of multiple ultrasonic exciters;

[0007] On the control interface of the ultrasonic stress controller, control signal parameters are set, including frequency, amplitude, phase, waveform, power, working time, and / or incident angle.

[0008] Based on the control signal parameters, multiple ultrasonic exciters emit control signals to regulate the residual stress in the component to be controlled;

[0009] The residual stress in the component to be regulated is detected at preset working times. When the detected residual stress value meets the preset stress standard, the regulation work ends.

[0010] Based on the above, a stress control device can be designed to regulate the stress of the component according to its size and structure. The designed stress control device is fixed to the component, and a control plan is formulated according to the site conditions. An ultrasonic stress controller controls an ultrasonic exciter to send a control signal to the component until the residual stress of the component meets the preset stress standard. Based on the detection results of the residual stress in the component, it is determined whether the residual stress in the controlled component meets the preset stress standard. If it does, the control ends; if not, the power of the ultrasonic stress controller can be adjusted until the preset stress standard is met. This method achieves non-destructive reduction of residual stress conveniently and quickly by setting control signal parameters without causing secondary damage such as indentation or deformation to the component.

[0011] Optionally, the control rate of residual stress in the component to be controlled shall not be less than 30%.

[0012] As stated above, if the control rate of residual stress in the component to be controlled is not less than 30%, it means that each time the control work begins, the residual stress inside the rail to be controlled will be reduced by at least 30% of the total.

[0013] Optionally, depending on the residual stress distribution, the outer surface of the residual stress concentration area of ​​the component to be controlled is coated with a coupling medium, wherein the coupling medium includes an acoustically transparent fluid or rubber.

[0014] As described above, a coupling medium is provided between the surface of the component to be controlled and the ultrasonic stress control device designed including the ultrasonic exciter. The coupling medium can be a sound-transmitting fluid or rubber, so that there is sufficient contact and coupling between the component to be controlled and the ultrasonic stress control device. This results in less scattering of the high-energy sound beam on the surface of the component to be controlled, reduces the attenuation of the ultrasonic wave, and improves the control effect.

[0015] Optionally, before setting the control signal parameters on the control interface of the ultrasonic stress controller, the electrical connection status between the ultrasonic exciter and the ultrasonic stress controller should be checked in advance.

[0016] Based on the above, under the condition that the ultrasonic exciter and the ultrasonic stress controller communicate well, the control signal parameters of the ultrasonic stress controller are set, thereby controlling the ultrasonic exciter to emit control signals (i.e., high-energy ultrasonic waves) to the component to be controlled, so as to achieve efficient, convenient and operable control work.

[0017] Optionally, based on the pre-detected residual stress distribution of the component to be controlled, multiple ultrasonic exciters are set with corresponding installation angles, including:

[0018] According to the residual stress distribution state, multiple fixed bases are set on the surface of the component to be controlled, including a main fixed base and a side fixed base, and the main fixed base and the side fixed base are hinged.

[0019] Based on the residual stress distribution, the number and installation angle of the ultrasonic exciters mounted on the main fixed base and the side fixed base are set respectively.

[0020] Based on the above, according to the concentrated area of ​​residual stress, multiple side-fixed bases are hinged to both sides of the main fixed base through convex rods. Under normal circumstances, the number of ultrasonic exciters on the side-fixed bases is less than the number of ultrasonic exciters on the main fixed base. The ultrasonic exciters on the main fixed base are set with different installation angles, and the extended angles of the sound beams emitted by each ultrasonic exciter intersect the same stress concentration area. The extended angles of the sound beams emitted by the ultrasonic exciters on each side-fixed base intersect the same stress concentration area. This makes the efficiency of controlling the residual stress inside the metal component higher.

[0021] Optionally, the number and installation angle of the ultrasonic exciters mounted on the main fixed base and the side fixed base are respectively set, including: the main fixed base is equipped with at least two ultrasonic exciters, and the side fixed base is equipped with at least one ultrasonic exciter.

[0022] The main fixed base and the side fixed base are respectively provided with central through holes that match the shape of the ultrasonic exciter, and the axial tilt angle of each central through hole is different.

[0023] The ultrasonic exciter is secured to the main fixed base and the side fixed base using the exciter fixing flange.

[0024] As described above, at least two ultrasonic exciters are installed on the main fixed base, and at least one ultrasonic exciter is installed on each side fixed base. The inclination angles of the exciter through holes between the main fixed base and the side fixed bases are different. After the ultrasonic exciters are installed in the exciter through holes with different inclination angles, the angles at which the ultrasonic exciters emit sound beams are also different. The exciter fixing flange can not only fasten the ultrasonic exciter, but also provide a certain pre-tightening force to press the surface of the component to be controlled.

[0025] Optionally, multiple fixing bases are provided on the surface of the component to be adjusted, including:

[0026] Multiple fixed bases have a curved surface structure on one side that fits into the surface of the component to be adjusted;

[0027] Multiple fixed bases are attached to the surface of the component to be adjusted by magnetic switches at both ends.

[0028] As shown above, one side of the fixed base is provided with a curved structure to fit the surface of the component to be adjusted, so as to achieve non-destructive reduction of residual stress; the switch through holes at both ends of the fixed base are used to fasten the magnetic switch with bolts, so that the magnetic switch can be attached to the surface of the component to be adjusted, which facilitates stress adjustment of the component.

[0029] Optionally, the electromagnetic ultrasonic transducer is attached to the surface of the component to be controlled at a constant lift-off distance by a guide wheel mechanism mounted on the outer wall of the electromagnetic ultrasonic transducer, and the residual stress in the component to be controlled is detected.

[0030] As described above, the guide wheel mechanism enables the electromagnetic ultrasonic transducer to adhere to the detection area on the surface of the component to be tested at a constant lifting distance. This eliminates the need for coupling medium between the electromagnetic ultrasonic transducer and the detection area of ​​the component to be tested, and allows for non-contact testing by lifting it a certain distance. Furthermore, the guide wheel mechanism can arbitrarily change the direction of movement of the electromagnetic ultrasonic transducer.

[0031] The present invention also provides a computer-readable storage medium storing computer instructions, characterized in that the computer instructions are operated to perform the multidimensional high-energy acoustic beam modulation stress method described in any of the preceding claims.

[0032] The present invention also provides a computer device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores computer instructions executable by the at least one processor, and the at least one processor operates the computer instructions to perform the multidimensional high-energy sound beam modulated stress method described in any of the preceding claims.

[0033] Compared with the prior art, the technical effects of the present invention are as follows: The multidimensional high-energy sound beam stress control method of the present invention has no special requirements for the components and will not cause secondary damage such as indentation and deformation to the components. The method realizes residual stress control and reduction based on the high-energy ultrasonic plastic induction effect. The method has a simple structure and is easy to use. It realizes convenient, fast and reliable installation of stress control device and effective non-destructive reduction of residual stress. The method is harmless to the human body and the environment, and the control time is short and it can be operated in situ. Attached Figure Description

[0034] The various technical features of the present invention and their relationships will be further explained below with reference to the accompanying drawings. The drawings are exemplary; some technical features are not shown to scale, and some drawings may omit technical features commonly used in the art to which this invention pertains that are not essential for understanding and implementing the invention, or may additionally show technical features that are not essential for understanding and implementing the invention. In other words, the combination of various technical features shown in the drawings is not intended to limit the invention. Furthermore, throughout this invention, the same reference numerals refer to the same things. Specific descriptions of the drawings are as follows:

[0035] Figure 1 This is a flowchart of a multidimensional high-energy acoustic beam stress control method;

[0036] Figure 2a This is a design structural diagram of an ultrasonic stress control device;

[0037] Figure 2b This is a cross-sectional view of the design of an ultrasonic stress control device;

[0038] Figure 3a This is a schematic diagram of an ultrasonic stress detection device.

[0039] Figure 3b This is a partial structural diagram of an ultrasonic stress detection device;

[0040] Figure 4 This is another embodiment of a multidimensional high-energy sound beam stress control method.

[0041] Explanation of reference numerals in the attached figures

[0042] Main fixed base 201, side fixed base 202, convex rod 203, ultrasonic exciter 204, exciter fixing flange 205, flange fastening bolt 2051, spring 2052, magnetic switch 206, sound guiding curvature wedge 207, lifting handle 208.

[0043] Cage 301, clamping mechanism 302, fastener 3021, spring 3022, adjusting rod 3023, connecting beam 303, electromagnetic ultrasonic transducer 304, transducer body 3041, guide wheel mounting groove 3042, guide wheel mechanism 305, guide wheel 3051, wheel frame 3052.

[0044] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0045] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0046] The preferred embodiments of this application will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this application can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this application.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0048] Taking in-service railway rails as an example, after the rails have been in service, the residual stress is redistributed dynamically due to changes in structural form, ambient temperature, and external loads. This can easily lead to stress concentration, which can cause deformation, cracking, and corrosion at the welded joints of the rails. It can even seriously affect the stability, mechanical properties, and lifespan of the rails during subsequent use. Therefore, timely and effective residual stress control must be carried out during the service of the rails to avoid safety accidents.

[0049] The technical solutions of this application and how they solve the aforementioned technical problems will be described in detail below with specific embodiments. The specific embodiments described below can be combined with each other to form new embodiments. The same or similar ideas or processes described in one embodiment may not be repeated in other embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0050] This invention will use a steel rail as the component to be controlled and will describe in detail the multidimensional high-energy sound beam stress control method.

[0051] Figure 1 The process of a multidimensional high-energy acoustic beam stress modulation method is demonstrated, such as... Figure 1 As shown, a multidimensional high-energy sound beam stress modulation method specifically includes:

[0052] S101: Based on the pre-detected residual stress distribution of the component to be controlled, set the corresponding installation angles of multiple ultrasonic exciters;

[0053] S102: Set the control signal parameters on the control interface of the ultrasonic stress controller, wherein the control signal parameters include frequency, amplitude, phase, waveform, power, working time, and / or incident angle.

[0054] S103: According to the control signal parameters, multiple ultrasonic exciters emit control signals to control the residual stress in the component to be controlled;

[0055] S104: At preset working times, the residual stress in the component to be regulated is detected. When the detected residual stress value meets the preset stress standard, the regulation work ends.

[0056] Specifically, based on the size and structural design of the component to be regulated, a stress regulation device can be designed for the component. The designed stress regulation device is fixed to the component, and a regulation plan is formulated according to the site conditions. An ultrasonic stress controller controls an ultrasonic exciter to send a regulation signal to the component until the residual stress of the component meets the preset stress standard. Based on the detection results of the residual stress in the component, it is determined whether the residual stress in the regulated component meets the preset stress standard. If it does, the regulation ends; if not, the power of the ultrasonic stress controller can be adjusted until the preset stress standard is met. This method achieves non-destructive reduction of residual stress conveniently and quickly by setting the regulation signal parameters without causing secondary damage such as indentation or deformation to the component.

[0057] It should be noted that the preset stress standard is set according to different materials. For example, a residual stress value inside the rail below 300 MPa is sufficient to meet the preset stress standard.

[0058] In a specific embodiment where the rail is the component to be controlled, the high-energy ultrasonic wave (i.e., the control signal) emitted by the ultrasonic exciter can be a transverse wave and or longitudinal wave. The parameters of this high-energy ultrasonic wave can be adjusted according to factors such as different materials and or different wall thicknesses of the rail. These parameters may include frequency, amplitude, phase, waveform, and or incident angle.

[0059] In the above specific embodiment, the ultrasonic exciter can be connected to the ultrasonic stress controller. The two can be connected by a signal line or wirelessly. The ultrasonic stress controller sends control signal parameters to the ultrasonic exciter. After receiving the control signal parameters, the ultrasonic exciter emits a control signal to perform ultrasonic control processing on the residual stress concentration area of ​​the rail.

[0060] In the above embodiments, since high-energy ultrasound (i.e., high-energy sound beams) has certain beam pointing characteristics, the control device designed for residual stress in rails provided in this embodiment uses an ultrasonic exciter to emit multiple high-energy ultrasound beams within a certain angle range. By effectively controlling the parameters of these high-energy ultrasound beams, they are injected into a designated position within the rail to be controlled. This achieves the purpose of reducing and homogenizing residual stress without altering the original material's lattice texture and mechanical properties. Furthermore, since the parameters of the high-energy ultrasound are adjustable in real time, the problem of material performance degradation caused by excessive energy in the focused area of ​​the high-energy ultrasound beam can be avoided, ensuring material performance. Adjusting residual stress using high-energy ultrasound has many advantages, such as short time consumption, low energy, and no damage to components.

[0061] It should be noted that when high-energy ultrasonic waves are incident on the rail, reflection, refraction and transmission will occur. The installation angle of the ultrasonic exciter can make its signal incident at a certain angle, so that most of the high-energy sound beam is incident on the rail to be controlled area, reducing the energy loss of the high-energy sound beam.

[0062] Optionally, the control rate of residual stress in the component to be controlled shall not be less than 30%.

[0063] Specifically, if the rate of residual stress control in the component to be controlled is not less than 30%, it means that each time the control work begins, the residual stress inside the rail to be controlled will be reduced by at least 30% of the total.

[0064] Optionally, depending on the residual stress distribution, the outer surface of the residual stress concentration area of ​​the component to be controlled is coated with a coupling medium, wherein the coupling medium includes an acoustically transparent fluid or rubber.

[0065] Specifically, a coupling medium is provided between the surface of the component to be controlled and the ultrasonic stress control device, which includes an ultrasonic exciter. The coupling medium can be a sound-transmitting fluid or rubber, so that the component to be controlled and the ultrasonic stress control device can make full contact and coupling, thereby reducing the scattering of the high-energy sound beam on the surface of the component to be controlled, reducing the attenuation of the ultrasonic waves, and improving the control effect.

[0066] Optionally, before setting the control signal parameters on the control interface of the ultrasonic stress controller, the electrical connection status between the ultrasonic exciter and the ultrasonic stress controller should be checked in advance.

[0067] Specifically, when the ultrasonic exciter and the ultrasonic stress controller are in good communication, the control signal parameters of the ultrasonic stress controller are set, thereby controlling the ultrasonic exciter to emit control signals (i.e., high-energy ultrasonic waves) to the component to be controlled, so as to achieve efficient, convenient and operable control work.

[0068] Optionally, based on the pre-detected residual stress distribution of the component to be controlled, multiple ultrasonic exciters are set with corresponding installation angles, including:

[0069] According to the residual stress distribution state, multiple fixed bases are set on the surface of the component to be controlled, including a main fixed base and a side fixed base, and the main fixed base and the side fixed base are hinged.

[0070] Based on the residual stress distribution, the number and installation angle of the ultrasonic exciters mounted on the main fixed base and the side fixed base are set respectively.

[0071] Specifically, based on the area of ​​residual stress concentration, multiple side-fixed bases are hinged to both sides of the main fixed base via convex rods. Under normal circumstances, the number of ultrasonic exciters on the side-fixed bases is less than the number of ultrasonic exciters on the main fixed base. The ultrasonic exciters on the main fixed base are set with different installation angles, and the extended angles of the sound beams emitted by each ultrasonic exciter intersect the same stress concentration area. The extended angles of the sound beams emitted by the ultrasonic exciters on each side-fixed base also intersect the same stress concentration area. This makes the efficiency of controlling the residual stress inside the metal component higher.

[0072] Optionally, the number and installation angle of the ultrasonic exciters mounted on the main fixed base and the side fixed base are respectively set, including: the main fixed base is equipped with at least two ultrasonic exciters, and the side fixed base is equipped with at least one ultrasonic exciter.

[0073] The main fixed base and the side fixed base are respectively provided with central through holes that match the shape of the ultrasonic exciter, and the axial tilt angle of each central through hole is different.

[0074] The ultrasonic exciter is secured to the main fixed base and the side fixed base using the exciter fixing flange.

[0075] Specifically, at least two ultrasonic exciters are provided on the main fixed base, and at least one ultrasonic exciter is provided on each side fixed base. The inclination angles of the exciter through holes provided between the main fixed base and the side fixed base are different. After the ultrasonic exciters are installed in the exciter through holes with different inclination angles, the angles at which the ultrasonic exciters emit sound beams are also different. The exciter fixing flange can not only fasten the ultrasonic exciter, but also provide a certain pre-tightening force to the ultrasonic exciter to press the surface of the component to be controlled.

[0076] Optionally, multiple fixing bases are provided on the surface of the component to be adjusted, including:

[0077] Multiple fixed bases have a curved surface structure on one side that fits into the surface of the component to be adjusted;

[0078] Multiple fixed bases are attached to the surface of the component to be adjusted by magnetic switches at both ends.

[0079] Specifically, one side of the fixed base has a curved structure to fit the surface of the component to be adjusted, so as to achieve non-destructive reduction of residual stress; the switch through holes at both ends of the fixed base are fastened with bolts to the magnetic switch, which is then attracted to the surface of the component to be adjusted, so as to facilitate stress adjustment of the component.

[0080] In a specific embodiment where the rail is the component to be adjusted, such as Figures 2a-2bAs shown, this invention designs an ultrasonic stress control device based on the residual stress distribution of the rail, used to fix the ultrasonic exciter so that the ultrasonic exciter is in close contact with the area of ​​the rail to be controlled via a sound-guiding curvature wedge. This multi-dimensional high-energy acoustic beam stress control device mainly includes: a main fixing base 201, a side fixing base 202, a convex rod 203, an ultrasonic exciter 204, an exciter fixing flange 205, flange fastening bolts 2051, a spring 2052, a magnetic switch 206, a sound-guiding curvature wedge 207, a lifting handle 208, and other accessories. The main fixing base 201 and the side fixing base 202 each have a curved surface structure on one side to fit the rail head and rail web of the rail. Both ends of each side fixing base 202 are hinged to the main fixing base 201 via a convex rod 203. Both ends of the main fixing base 201 and the side fixing base 202 have switch through holes matching the shape of the magnetic switch 206. The magnetic switch 206 is fixed in the switch through holes with bolts, thus fixing the device to the rail head and rail web of the rail. The main fixing base 201 and the side fixing base 202 are equipped with features that correspond to the ultrasonic exciter 2. 04. A matching exciter through-hole, with multiple exciter fixing holes arranged around it; the center of the exciter fixing flange 205 has a flange through-hole matching the shape of the ultrasonic exciter 204, and multiple flange fixing holes are arranged around this flange through-hole on the exciter fixing flange 205. These flange fixing holes match the exciter fixing holes on the main fixing base 201 and the side fixing base 202, and are used to fix the exciter fixing flange 205 to the main fixing base 201 and the side fixing base 202. The flange fixing holes are secured by flange fastening bolts surrounding the spring 2052. Bolt 2051 provides a certain preload to the ultrasonic exciter, thereby ensuring that the control signal can be effectively transmitted to the area of ​​residual stress concentration in the rail, thus improving the control effect. The ultrasonic exciter 204 passes through the exciter through hole in the main fixed base 201 and the flange through hole in the exciter fixing flange 205, and is fixed to the main fixed base 201 through the exciter fixing flange 205. The ultrasonic exciter 204 also passes through the exciter through hole in the side fixed base 202 and the flange through hole in the exciter fixing flange 205, and is fixed to the side fixed base 202 through the exciter fixing flange 205. The end of the ultrasonic exciter 204 is connected to the upper contact surface of the sound-guiding curvature wedge 207, and the lower contact surface of the sound-guiding curvature wedge 207 is the curvature shape of the rail to be adjusted. High-energy ultrasonic waves are injected into the stress concentration area through the cooperation of the ultrasonic exciter 204 and the sound-guiding curvature wedge 207, thereby achieving the effect of reducing and homogenizing the residual stress at the welded part of the rail. A lifting handle 208 is installed on the main fixed base 201. The lifting handle 208 can be provided with a threaded hole to connect with an external motion mechanism so as to remove the multidimensional high-energy sound beam stress control device from the surface of the component.

[0081] Optionally, the electromagnetic ultrasonic transducer is attached to the surface of the component to be controlled at a constant lift-off distance by a guide wheel mechanism mounted on the outer wall of the electromagnetic ultrasonic transducer, and the residual stress in the component to be controlled is detected.

[0082] Specifically, the guide wheel mechanism enables the electromagnetic ultrasonic transducer to adhere to the detection area on the surface of the component to be tested at a constant lifting distance. This eliminates the need for coupling medium between the electromagnetic ultrasonic transducer and the detection area of ​​the component to be tested, and allows for non-contact testing by lifting it a certain distance. The guide wheel mechanism can also arbitrarily change the direction of movement of the electromagnetic ultrasonic transducer.

[0083] In a specific embodiment where the rail is the component to be adjusted, such as Figures 3a-3bAs shown, an ultrasonic stress detection device is designed to simultaneously detect the stress distribution of the rail head, rail web, and rail bottom of a rail. The stress detection device mainly includes a retainer 301, a clamping mechanism 302, a fixing component 3021, a spring 3022, an adjusting rod 3023, a connecting beam 303, an electromagnetic ultrasonic transducer 304, a transducer body 3041, a guide wheel mounting groove 3042, a guide wheel mechanism 305, a guide wheel 3051, a wheel frame 3052, an electromagnetic ultrasonic transceiver, and a residual stress analyzer. The electromagnetic ultrasonic transducer 304 includes a transducer body 3041 and a guide wheel mounting groove 3042. The top of the transducer body 3041 is provided with a signal line terminal, and the guide wheel mounting groove 3042 is provided around the transducer body 3041. The bottom of the transducer body 3041 is provided with a contact surface made of wear-resistant material. The guide wheel mechanism 305 includes a guide wheel 3051 and a wheel frame 3052. The guide wheel 3051 is mounted on the wheel frame 3052, and the wheel frame 3052 is... The guide wheel mechanism 305 is mounted on the guide wheel mounting groove 3042 of the transducer body 3041. The wheel frame 3052 has four threaded holes, and the guide wheel mechanism 305 is fastened to the transducer body 3041 with screws. The electromagnetic ultrasonic transducer 304 is mounted on the connecting beam 303 with screws. One electromagnetic ultrasonic transducer 304 is mounted at each end of the connecting beam 303. The electromagnetic ultrasonic transducer 304 adopts a one-transmitter-one-receiver mode. The connecting beam 303 is connected to the clamping mechanism 302 in the middle. 302 The retainer 301 is fixed to the connecting beam 303 by the fastener 3021 and the adjusting rod 3023. The retainer 301 can be connected to an external motion mechanism and move according to the set detection path. The spring 3022 is arranged around the lower crossbeam of the fastener 3021 to provide a certain preload for the multi-directional electromagnetic ultrasonic stress detection device, so that the electromagnetic ultrasonic transducer 304 is in close contact with the surface of the component to be tested. The retainer 301 is provided with a fixing rod that can be connected to the clamping mechanism 302 by screws. Multiple fixing rods can be set on the retainer 301 to install multiple sets of electromagnetic ultrasonic stress detection devices to realize simultaneous detection of multiple positions such as rail head, rail web, and rail bottom of the rail. The retainer 301 can also be connected to the motion mechanism such as the rail inspection vehicle by bolts. The electromagnetic ultrasonic transceiver is used to control the electromagnetic ultrasonic transducer to transmit and receive ultrasonic waves. The residual stress analyzer is used to perform the residual stress ultrasonic detection method to obtain the residual stress state of the rail to be tested.

[0084] This application provides a method for multidimensional high-energy acoustic beam modulation of residual stress in service rails using an ultrasonic stress modulation device. The steps are described in detail below:

[0085] S401: Apply the coupling agent to the stress concentration area of ​​the rail to be adjusted.

[0086] The process involves using an external stress detection device to measure residual stress in the rail to be adjusted, thereby identifying areas of residual stress concentration. It is important to apply a coupling agent to the contact surface between the stress concentration area of ​​the rail and the ultrasonic stress control device.

[0087] S402: Fix the ultrasonic stress control device onto the rail to be controlled.

[0088] Among them, a suitable ultrasonic stress control device is made according to the rail to be controlled, so that the rail to be controlled and the ultrasonic stress control device can fit closely together.

[0089] The ultrasonic stress control device is attached to the rail to be controlled by a fixing mechanism such as a magnetic switch. Then, by adjusting the bolts and springs, the ultrasonic exciter is pressed against the surface of the rail with a certain preload, thereby achieving stable clamping of the rail to be controlled.

[0090] S403: Check the connection status of the ultrasonic stress controller and the ultrasonic stress control device.

[0091] S404: Adjust the signal parameters in the working interface of the ultrasonic stress controller.

[0092] The high-energy ultrasonic waves (i.e., the control signal) emitted by the ultrasonic exciter can be transverse waves and or longitudinal waves. The parameters of these high-energy ultrasonic waves can be adjusted according to different materials and or different wall thicknesses of the rail. These parameters may include frequency, amplitude, phase, waveform, and or incident angle.

[0093] S405: The ultrasonic stress controller controls the ultrasonic stress regulation device to send regulation signals to the rail to be regulated.

[0094] The ultrasonic stress controller sends a control signal to the ultrasonic exciter according to the control command, thereby causing the ultrasonic exciter to emit corresponding high-energy ultrasonic waves. These high-energy ultrasonic waves are injected into the stress concentration area of ​​the rail to be controlled through the ultrasonic stress control device and coupling agent to reduce and homogenize stress.

[0095] S406: After the operation is completed, determine whether the internal stress state of the rail meets the requirements. If it does, remove the ultrasonic stress control device. If it does not, repeat the steps.

[0096] As one approach, the residual stress of the rail to be controlled can be detected by an external stress detection device. This allows the determination of whether the residual stress inside the rail meets the requirements. If the preset stress standard is met, the reduction and homogenization of the residual stress is completed. At this point, the ultrasonic stress control device is removed from the surface of the rail, thus completing the disassembly. If the preset stress standard is not met, the steps are repeated.

[0097] In summary, the multidimensional high-energy acoustic beam stress control method of the present invention has no special requirements for the components and will not cause secondary damage such as indentation and deformation to the components. The method realizes residual stress control and reduction based on the plastic induction effect of high-energy ultrasound. The method has a simple structure and is easy to use. It enables convenient, quick and reliable installation of stress control devices and effective non-destructive reduction of residual stress. The method is harmless to the human body and the environment, and the control time is short and it can be operated in situ.

[0098] In another embodiment, the present invention also provides a computer-readable storage medium storing computer instructions, characterized in that the computer instructions are operated to perform the multidimensional high-energy acoustic beam modulation stress method described in any of the preceding claims.

[0099] In another embodiment, the present invention also provides a computer device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores computer instructions executable by the at least one processor, the at least one processor operating the computer instructions to perform the multidimensional high-energy sound beam modulated stress method described in any of the preceding embodiments.

[0100] Unless otherwise defined, all technical and scientific terms used throughout this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning as stated in this application or derived from the content described herein shall prevail. Furthermore, the terminology used in this description is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0101] The device's functions can be implemented by a processor executing programs (software), or by hardware such as LSI (Large Scale Integration) and ASIC (Application Specific Integrated Circuit), or by a combination of software and hardware.

[0102] A server can be a cloud server or a local server; it can be a physical server or a virtual server.

[0103] The method and apparatus are based on the same concept. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and the method can be referred to each other, and the repeated parts will not be described again.

[0104] The terms “first, second, third, etc.” or similar terms such as module A, module B, and module C used throughout this application are only used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that a specific order or sequence can be interchanged where permitted.

[0105] Throughout this application, the reference numerals for steps, such as S401, S402, etc., do not necessarily indicate that these steps will be performed. Where permissible, the order of the steps may be interchanged or performed simultaneously.

[0106] The term "comprising" as used throughout this application should not be construed as limiting itself to the contents listed below; it does not exclude other structural elements or steps. Therefore, it should be interpreted as specifying the presence of the mentioned technical features, integrals, steps, or components, but does not exclude the presence or addition of one or more other technical features, integrals, steps, or components and groups thereof.

[0107] It is understood that those skilled in the art can combine the features mentioned in one or more embodiments throughout this application with features from other embodiments in any appropriate manner to implement this application.

[0108] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the technical concept of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A method for controlling stress using a multidimensional high-energy acoustic beam, characterized in that, include: Based on the pre-detected residual stress distribution of the component to be controlled, the installation angles of multiple ultrasonic exciters are set accordingly. Specifically, this includes: setting multiple fixed bases on the surface of the component to be controlled according to the residual stress distribution, wherein the multiple fixed bases include a main fixed base and a side fixed base, and the main fixed base and the side fixed base are hinged together; and setting the number and installation angle of the ultrasonic exciters mounted on the main fixed base and the side fixed base respectively according to the residual stress distribution. On the control interface of the ultrasonic stress controller, control signal parameters are set, wherein the control signal parameters include frequency, amplitude, phase, waveform, power, working time and / or incident angle. According to the control signal parameters, the multiple ultrasonic exciters emit control signals to control the residual stress in the component to be controlled; The residual stress in the component to be controlled is detected at preset working intervals. When the detected residual stress value meets the preset stress standard, the control operation ends.

2. The multidimensional high-energy acoustic beam stress modulation method as described in claim 1, characterized in that, The rate of adjustment of residual stress in the component to be adjusted is not less than 30%.

3. The multidimensional high-energy acoustic beam stress modulation method as described in claim 1, characterized in that, According to the residual stress distribution state, the outer surface of the residual stress concentration area of ​​the component to be controlled is coated with a coupling medium, wherein the coupling medium includes an acoustically transparent fluid or rubber.

4. The multidimensional high-energy acoustic beam stress modulation method as described in claim 1, characterized in that, Before setting the control signal parameters on the control interface of the ultrasonic stress controller, check the electrical connection status between the ultrasonic exciter and the ultrasonic stress controller.

5. The multidimensional high-energy acoustic beam stress modulation method as described in claim 1, characterized in that, The method of setting the number and installation angle of the ultrasonic exciters mounted on the main fixing base and the side fixing base respectively includes: The main fixed base is equipped with at least two of the ultrasonic exciters, and the side fixed base is equipped with at least one of the ultrasonic exciters. The main fixing base and the side fixing base are respectively provided with a central through hole that matches the shape of the ultrasonic exciter, wherein the axial tilt angle of each central through hole is different; The ultrasonic actuator is secured to the main fixed base and the side fixed base by the actuator fixing flange.

6. The multidimensional high-energy acoustic beam stress modulation method as described in claim 1, characterized in that, The method of setting multiple fixed bases on the surface of the component to be adjusted includes: One side of each of the fixed bases is provided with a curved surface structure that fits against the surface of the component to be adjusted; Multiple fixed bases are attached to the surface of the component to be adjusted by magnetic switches at both ends.

7. The multidimensional high-energy acoustic beam stress modulation method as described in claim 1, characterized in that, The electromagnetic ultrasonic transducer is attached to the surface of the component to be controlled at a constant lift-off distance by a guide wheel mechanism mounted on the outer wall of the electromagnetic ultrasonic transducer, and the residual stress in the component to be controlled is detected.

8. A computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are operated to perform the multidimensional high-energy acoustic beam modulated stress method according to any one of claims 1-7.

9. A computer device, characterized in that, include: At least one processor; as well as A memory that is communicatively connected to the at least one processor; The memory stores computer instructions executable by the at least one processor, which operates the computer instructions to perform the multidimensional high-energy acoustic beam stress modulation method as described in any one of claims 1-7.

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