Pipeline vibration control method, device and equipment and medium

Abstract

The invention discloses a pipeline vibration control method, device and equipment and a medium. The method comprises the steps that the vibration position of a target pipeline and at least one vibration frequency of the vibration position are obtained; a piezoelectric plate array unit is arranged at the vibration position; the piezoelectric plate array unit is connected with at least one shunt branch; the number of the shunt branches is the same as that of the vibration frequencies; according to the vibration frequency, calculating a parameter value of each element in the shunt branch corresponding to the vibration frequency; and controlling the shunt branch to output a modulation voltage signal to the piezoelectric plate array unit according to the parameter value of each element in the shunt branch corresponding to the vibration frequency so as to suppress the vibration frequency. According to the embodiment of the invention, various vibration frequencies of the pipeline can be suppressed.

Description

Technical Field

[0001] The present invention relates to the field of vibration control technology, and in particular to a pipeline vibration control method, device, equipment and medium. Background Art

[0002] In energy engineering, when pipelines transport fluids (such as oil and natural gas), the pipelines will vibrate. When the pipelines vibrate, pipeline damage, pipeline vibration noise pollution, damage to pipeline connecting equipment, and reduced transportation efficiency of the transported fluids and energy waste will occur.

[0003] At present, the response frequency of damping materials to vibration is fixed, and the vibration of the pipeline is suppressed by adding damping materials to the pipeline.

[0004] However, the above method can only control vibrations of a single frequency and cannot suppress vibrations of multiple frequencies at the same time. Summary of the Invention

[0005] The present invention provides a pipeline vibration control method, device, equipment and medium. The embodiments of the present invention can suppress multiple vibration frequencies of the pipeline.

[0006] In a first aspect, an embodiment of the present invention provides a pipeline vibration control method, comprising: obtaining the vibration position of a target pipeline and at least one vibration frequency of the vibration position; disposing a piezoelectric array unit at the vibration position; connecting the piezoelectric array unit to at least one shunt branch; the number of shunt branches is the same as the number of vibration frequencies; calculating, based on the vibration frequency, the parameter value of each element in the shunt branch corresponding to the vibration frequency; and controlling, based on the parameter value of each element in the shunt branch corresponding to the vibration frequency, the shunt branch to output a modulation voltage signal to the piezoelectric array unit to suppress the vibration frequency.

[0007] In a second aspect, an embodiment of the present invention further provides a pipeline vibration control device, which includes: a vibration information acquisition module for acquiring the vibration position of the target pipeline and at least one vibration frequency of the vibration position; a piezoelectric array unit is configured at the vibration position; the piezoelectric array unit is connected to at least one shunt branch; the number of shunt branches is the same as the number of vibration frequencies; an element parameter calculation module for calculating the parameter value of each element in the shunt branch corresponding to the vibration frequency based on the vibration frequency; and a vibration frequency suppression module for controlling the shunt branch to output a modulation voltage signal to the piezoelectric array unit based on the parameter value of each element in the shunt branch corresponding to the vibration frequency to suppress the vibration frequency.

[0008] In a third aspect, an embodiment of the present invention further provides a pipeline vibration control device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the pipeline vibration control method of any embodiment of the present invention.

[0009] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the pipeline vibration control method of any embodiment of the present invention when executed.

[0010] The technical solution of the embodiment of the present invention obtains the vibration position of the target pipeline and the corresponding vibration frequencies at the vibration position, and suppresses the vibration frequency of the pipeline through a piezoelectric array unit configured at the vibration position. The number of shunt branches is the same as the number of vibration frequencies, and each shunt branch outputs a voltage signal to the piezoelectric array unit to suppress different vibration frequencies. This solves the technical problem that the prior art can only control vibrations of a single frequency and cannot simultaneously suppress vibrations of multiple different frequencies, and can achieve the suppression of multiple different vibration frequencies of the pipeline.

[0011] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 This is a flow chart of a pipeline vibration control method provided by an embodiment of the present invention.

[0014] Figure 2 This is a flow chart of a pipeline vibration control method provided by an embodiment of the present invention.

[0015] Figure 3 A schematic diagram of a shunt branch provided in an embodiment of the present invention.

[0016] Figure 4 A schematic diagram of a vibration control effect provided by an embodiment of the present invention.

[0017] Figure 5 A schematic diagram of an arrangement of piezoelectric array units provided in an embodiment of the present invention.

[0018] Figure 6 A schematic diagram of an equivalent digital circuit provided by an embodiment of the present invention.

[0019] Figure 7 A schematic structural diagram of a pipeline vibration control device provided in an embodiment of the present invention.

[0020] Figure 8 A schematic structural diagram of a pipeline vibration control device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the technical solutions of the embodiments of the present invention, the acquisition, storage and application of the vibration position, vibration frequency and parameter values ​​of each component involved all comply with the provisions of relevant laws and regulations and do not violate public order and good morals.

[0024] Figure 1 This is a flow chart of a pipeline vibration control method provided by an embodiment of the present invention. This embodiment of the present invention is applicable to controlling a variety of different vibration frequencies in a pipeline. This method can be performed by a pipeline vibration control device, which can be implemented in hardware and / or software.

[0025] See also Figure 1The pipeline vibration control method shown includes: S101, obtaining the vibration position of the target pipeline and at least one vibration frequency of the vibration position; a piezoelectric array unit is configured at the vibration position; the piezoelectric array unit is connected to at least one shunt branch; the number of shunt branches is the same as the number of vibration frequencies.

[0026] The target pipeline may refer to the pipeline requiring vibration control. A target pipeline is a closed tubular structure used to transport fluids, including oil, natural gas, liquid water, and steam. During fluid transportation, the target pipeline may vibrate due to internal disturbances in the fluid, interference from mechanical supports, or external environmental influences. These vibrations propagate at different frequencies.

[0027] The vibration location can refer to the location on the target pipeline where the vibration response is most pronounced and requires control. Because the modal response has a spatial distribution, certain locations within the target pipeline (such as the pipeline belly) experience maximum displacement or strain. This location can be considered the vibration location. By determining the vibration location of the target pipeline, the installation position of the piezoelectric array unit can be determined, achieving more efficient vibration control.

[0028] The vibration frequency refers to the frequency of the periodic vibrations generated by the target pipeline under external excitation or self-vibration. The unit of vibration frequency is usually Hertz (Hz). The target pipeline can have multiple vibration frequencies at the same vibration position. When disturbed, the target pipeline will undergo free vibration, which includes multiple frequencies. Because the structure of the target pipeline has multiple modal frequencies, each mode has a different distribution on the structure, resulting in responses in multiple modes at the same position, resulting in multiple vibration frequencies at the same vibration position. For example, the target pipeline has three different vibration frequencies at a certain vibration position: 100Hz, 260Hz, and 480Hz.

[0029] Among them, the piezoelectric sheet array unit may refer to a combination device composed of multiple piezoelectric fiber sheets. The piezoelectric sheet array unit can be attached to the surface of the target pipeline and used to suppress the vibration of the target pipeline. The piezoelectric sheet array unit has a piezoelectric effect. The piezoelectric fiber sheet will undergo reverse deformation under the application of voltage, generating a reaction force that suppresses the vibration of the structure and is used to actively control the vibration of the pipeline. Among them, the piezoelectric fiber sheets in the piezoelectric sheet array unit can be implemented in a variety of arrangements. For example, two symmetrical piezoelectric fiber sheets can be installed at the vibration position, or a circle of piezoelectric fiber sheets can be installed around the vibration position.

[0030] Among them, the shunt branch can refer to a circuit branch connected to the piezoelectric array unit. A shunt branch can be used to tune a specific vibration frequency to modulate the output voltage response of the piezoelectric piece. For example, there are three vibration frequencies at a certain vibration position of the target pipeline, including: 200Hz, 450Hz and 720Hz. A piezoelectric array unit is installed at this vibration position, and three shunt branches are connected to the piezoelectric array unit. Each shunt branch is precisely positioned through filtering and component parameter design to control the three vibration frequencies respectively.

[0031] S102. Calculate the parameter value of each component in the shunt branch corresponding to the vibration frequency according to the vibration frequency.

[0032] Components refer to the basic electronic devices that make up the circuit in a shunt branch. These components can include resistors, capacitors, and inductors. Resistors control current flow, dissipate energy, and influence damping characteristics; capacitors store charge, participate in filtering, and adjust frequency response; and inductors store magnetic energy and adjust the circuit's resonant frequency. Combining different parameter values ​​for each component can achieve control of a specific vibration frequency.

[0033] S103 , according to the parameter value of each element in the shunt branch corresponding to the vibration frequency, controlling the shunt branch to output a modulation voltage signal to the piezoelectric array unit to suppress the vibration frequency.

[0034] The modulated voltage signal can refer to an adjustable voltage signal. The modulated voltage signal is the voltage waveform applied to the piezoelectric element in piezoelectric active control. It is used to actively deform the piezoelectric element, exerting a reverse control force on the pipeline structure, thereby suppressing structural vibration. The modulated voltage signal has adjustable characteristics.

[0035] It can be seen that in the embodiment of the present application, by obtaining the vibration position of the target pipeline and the corresponding vibration frequencies at the vibration position, and suppressing the vibration frequency of the pipeline through the piezoelectric array unit configured at the vibration position, the number of shunt branches is the same as the number of vibration frequencies, and each shunt branch outputs a voltage signal to the piezoelectric array unit respectively to suppress different vibration frequencies; it solves the technical problem that the existing technology can only control vibrations of a single frequency and cannot suppress vibrations of multiple different frequencies at the same time, and can achieve the suppression of multiple different vibration frequencies of the pipeline.

[0036] In an optional embodiment, Figure 2A flow chart of a pipeline vibration control method provided in an embodiment of the present invention refines the "shunt branch" into "the shunt branch includes a first parallel circuit and a second parallel circuit, the first parallel circuit and the second parallel circuit are connected in series to form a shunt branch; the inductor and the filter capacitor are connected in parallel to form a first parallel circuit; the inductor and the resistor are connected in parallel to form a second parallel circuit" to improve the operation of pipeline vibration control.

[0037] It should be noted that for parts not described in detail in the embodiments of the present invention, reference may be made to the descriptions of other embodiments.

[0038] See also Figure 2 The pipeline vibration control method shown includes: S201, obtaining the vibration position of the target pipeline and at least one vibration frequency of the vibration position; configuring a piezoelectric array unit at the vibration position; connecting the piezoelectric array unit to at least one shunt branch; the number of shunt branches is the same as the number of vibration frequencies; the shunt branch includes a first parallel circuit and a second parallel circuit, and the first parallel circuit and the second parallel circuit are connected in series to form the shunt branch; an inductor and a filter capacitor are connected in parallel to form a first parallel circuit; and an inductor and a resistor are connected in parallel to form a second parallel circuit.

[0039] The first parallel circuit may refer to a circuit unit formed by connecting an inductor and a filter capacitor in parallel. The first parallel circuit has frequency selectivity and is used for controlling and filtering currents at specific frequencies. When the inductor and the filter capacitor are connected in parallel, at a specific frequency (i.e., the resonant frequency), the impedance of the inductor and the impedance of the filter capacitor cancel each other out, minimizing the total impedance of the first parallel circuit. At other frequencies, since the impedance of the inductor and the impedance of the filter capacitor no longer cancel each other out, the total impedance of the circuit increases, weakening the ability of current to flow through the circuit. In pipeline vibration control, the first parallel circuit is used to filter out unnecessary frequency components and only allow current at the frequency that needs to be suppressed to pass through, thereby forming frequency selectivity in the vibration control system and ensuring that the shunt branch can focus on controlling specific frequencies.

[0040] The second parallel circuit may refer to a circuit unit consisting of an inductor and a resistor connected in parallel. The second parallel circuit is the circuit portion of the shunt branch responsible for energy dissipation and resonant absorption. The second parallel circuit is used to suppress the vibration response of the pipeline. Near the frequency where suppression is required, the inductor provides an energy storage channel for the current, while the resistor dissipates this energy as heat, achieving the purpose of energy dissipation.

[0041] In an optional embodiment, Figure 3A schematic diagram of a shunt branch provided by an embodiment of the present invention. Multiple shunt branches are connected in parallel to form a shunt circuit. Each shunt branch is used to control a vibration of a specific frequency. The number of shunt branches can be adjusted according to the number of modes to be controlled. The number of shunt branches is the same as the number of vibration frequencies. Each shunt branch has a Parallel circuits and The parallel circuit is connected in series; The parallel circuit is used as a current blocking filter to ensure that only the current of the designed frequency can pass through, thereby achieving the independence of each shunt branch; The parallel circuit is used to resonate and dissipate vibration energy. Based on the local resonance mechanism, the resonant frequency of the shunt branch is determined by the controlled frequency, and the component values ​​satisfy the following formula: , ;in, is the piezoelectric capacitance, is the target angular frequency, It is a filter capacitor.

[0042] In an optional embodiment, Figure 4 A schematic diagram of a vibration control effect provided by an embodiment of the present invention, taking the control target frequency as 652Hz as an example, the shunt branch is designed according to the above criteria, which can achieve the following Figure 4 The displacement transmissibility refers to the ratio of pipeline displacement to excitation displacement, which reflects the response of the pipeline to external excitation. The solid line represents the displacement transmissibility before vibration control of the target pipeline, and the dotted line represents the displacement transmissibility after vibration control of the target pipeline.

[0043] S202 . Calculate, based on the vibration frequency, the parameter value of each component in the shunt branch corresponding to the vibration frequency.

[0044] S203 , according to the parameter value of each element in the shunt branch corresponding to the vibration frequency, controlling the shunt branch to output a modulation voltage signal to the piezoelectric array unit to suppress the vibration frequency.

[0045] It can be seen that in this embodiment, by connecting the first parallel circuit and the second parallel circuit in series to form a shunt branch, independent adjustment of vibration signals of different frequencies can be achieved, so that each shunt branch can be more accurately tuned and controlled for a specific frequency; by connecting the inductor and the filter capacitor in parallel to form a first parallel circuit, a frequency selective circuit can be formed, which allows the target frequency signal to pass through at a specific resonant frequency, while effectively suppressing other non-target frequency signals, thereby improving the frequency selectivity of the shunt branch and ensuring efficient control of specific frequency vibrations; by connecting the inductor and the resistor in parallel to form a second parallel circuit, the vibration energy can be effectively attenuated and dissipated at the target frequency through the dissipation effect of the resistor, and the vibration energy of the specific frequency can be effectively consumed without affecting other frequency signals.

[0046] In some embodiments, the parameter value of each component in the shunt branch corresponding to the vibration frequency is calculated based on the vibration frequency, including: calculating the inductance value of the inductor of the first parallel circuit in each shunt branch based on the angular frequency corresponding to each vibration frequency and the capacitance value of the filter capacitor of the first parallel circuit; calculating the inductance value of the inductor of the second parallel circuit in each shunt branch based on the angular frequency corresponding to each vibration frequency and the capacitance value of the piezoelectric array unit; determining the parameter value of each component in each shunt branch based on the inductance value of the inductor of the first parallel circuit in each shunt branch and the inductance value of the inductor of the second parallel circuit in each shunt branch.

[0047] Specifically, the angular frequency corresponding to each vibration frequency can be calculated through the relationship formula between angular frequency and ordinary frequency, and then the inductance value of the first parallel circuit can be obtained according to the angular frequency and the inductance value of the filter capacitor and the inductance calculation formula of the resonant circuit; through the relationship formula between angular frequency and ordinary frequency, where the angular frequency is a fixed value, the capacitance value of the piezoelectric array unit and the inductance value of the inductor of the second parallel circuit satisfy the ratio relationship of the relationship formula between angular frequency and ordinary frequency, therefore, the capacitance value of the piezoelectric array unit can be used as a fixed value, and the inductance value of the inductor of the second parallel circuit in each shunt branch can be calculated according to the angular frequency corresponding to each vibration frequency and the capacitance value of the piezoelectric array unit.

[0048] It can be seen that in this embodiment, by calculating the parameters of the shunt branch element according to the vibration frequency, precise control of the vibration of a specific frequency can be achieved; calculating the inductance value of the inductor helps to ensure that the resonant frequency of the first parallel circuit and the second parallel circuit matches the target frequency, thereby improving the frequency selectivity and vibration suppression effect; by comprehensively adjusting the parameters of each component, the vibration control circuit can be optimized to ensure effective suppression of the target frequency.

[0049] In some embodiments, based on the parameter values ​​of each element in the shunt branch corresponding to the vibration frequency, the shunt branch is controlled to output a modulation voltage signal to the piezoelectric array unit to suppress the vibration frequency, including: generating a modulation voltage signal matching the vibration frequency based on the vibration frequency and the parameter values ​​of each element in the shunt branch corresponding to the vibration frequency; outputting the modulation voltage signal to the piezoelectric array unit so that the piezoelectric array unit generates an anti-phase mechanical response at the target vibration frequency and suppresses the vibration frequency.

[0050] Among them, the anti-phase mechanical response can refer to the mechanical deformation opposite to the original vibration of the pipeline or structure generated by the piezoelectric array unit after receiving the modulated voltage signal. In vibration control, the piezoelectric plate converts the electrical signal into mechanical deformation through the inverse piezoelectric effect and generates a force opposite to the original vibration direction, thereby offsetting or reducing the vibration of the pipeline. For example, suppose the pipeline vibrates at 500Hz, and the goal is to suppress the vibration through the piezoelectric array unit. The microcontroller calculates a modulated voltage signal that matches the 500Hz frequency and sends it to the piezoelectric array. At this time, the piezoelectric array unit will produce a reverse deformation opposite to the vibration direction, causing the pipeline to be subjected to a force opposite to the vibration direction, offsetting the original vibration of the pipeline.

[0051] It can be seen that in this embodiment, by adjusting the modulated voltage signal output by the shunt branch according to the parameter values ​​of each element in the shunt branch corresponding to the vibration frequency, it is possible to ensure that the piezoelectric array unit obtains the correct control signal at a specific frequency; by generating a modulated voltage signal that matches the vibration frequency, it is possible to ensure that the frequency of the signal is synchronized with the target vibration frequency, so that the voltage signal can be consistent with the vibration characteristics; by outputting the modulated voltage signal to the piezoelectric array unit, the piezoelectric array unit can generate an anti-phase mechanical response, actively counteracting the target vibration frequency, thereby reducing the vibration energy of the frequency, effectively suppressing the vibration of the pipeline or structure, and thus optimizing the vibration control effect.

[0052] In some embodiments, the piezoelectric sheet array unit includes: a piezoelectric fiber sheet; and two circles of piezoelectric fiber sheets are alternately installed in the target pipeline.

[0053] Figure 5 This is a schematic diagram of an arrangement of piezoelectric sheet array units provided by an embodiment of the present invention; a piezoelectric fiber sheet is selected as an actuator, which can adapt to the curved surface characteristics of the target pipeline. Figure 5 As shown, two circles of staggered piezoelectric fiber sheets form an array unit. The two staggered circles mean that the two circles of piezoelectric fiber sheets have an angular staggered arrangement. For example, the first circle is in the directions of 0° and 90°, and the second circle is in the directions of 45° and 135°. The staggered layout is equivalent to superimposing the sensing capabilities in multiple directions to form an approximately omnidirectional response surface. A single circle of piezoelectric fiber sheets may be insensitive to vibrations in certain directions. The staggered layout effectively makes up for the defect of directional insensitivity.

[0054] It can be seen that in this embodiment, by using piezoelectric fiber sheets as part of the piezoelectric sheet array unit, the flexibility and flexibility of the material can be improved, so that it can better adapt to the deformation of the target pipeline; by staggering two circles of piezoelectric fiber sheets in the target pipeline, the coverage range of the piezoelectric sheet array can be increased, ensuring more comprehensive suppression of pipeline vibration.

[0055] In some embodiments, obtaining the vibration position of the target pipeline and at least one vibration frequency of the vibration position includes: obtaining the geometric structure, material properties and vibration data of the target pipeline; the vibration data includes: pipeline acceleration and pipeline displacement; establishing a simulation model based on the geometric structure and material properties of the target pipeline to determine at least one vibration position of the target pipeline; and calculating at least one vibration frequency of the vibration position based on the vibration data of the target pipeline.

[0056] The geometric structure can refer to the physical shape, dimensions, and structural characteristics of the target pipeline. Material properties can refer to the physical characteristics of the material used in the target pipeline, such as elastic modulus, density, Poisson's ratio, and damping characteristics. These material properties determine the vibration response and energy dissipation characteristics of the target pipeline when subjected to external excitation. Specifically, a simulation model is established based on the geometric structure and material properties of the target pipeline, and the pipeline modal vibration shapes are solved in numerical calculation software to determine the vibration location of the target pipeline.

[0057] Vibration data may refer to the physical changes in the target pipeline during vibration. Vibration data includes pipeline acceleration and displacement, where pipeline acceleration and displacement refer to the acceleration and displacement of the pipeline during vibration. Specifically, the vibration frequency can be calculated using pipeline acceleration or displacement.

[0058] It can be seen that in this embodiment, by acquiring the geometric structure, material properties and vibration data, establishing a simulation model can help accurately predict the vibration response of the pipeline and determine the vibration position, thereby accurately locating the vibration control area; by calculating the vibration frequency of the vibration position, the vibration characteristics of the pipeline at different positions can be accurately identified, and the vibration components of different frequencies can be determined.

[0059] In an optional embodiment, according to the parameter values ​​of each element in the shunt branch corresponding to the vibration frequency, the shunt branch is controlled to output a modulated voltage signal to the piezoelectric array unit to suppress the vibration frequency. The above shunt branch can be implemented by a digital circuit. Figure 6 A schematic diagram of an equivalent digital circuit provided by an embodiment of the present invention, wherein an MCU (Microcontroller Unit) is used to implement input voltage and output voltage Transfer function. According to the "virtual open" and "virtual short" characteristics of the operational amplifier, the following potential relationship can be obtained: ; It can be further calculated that the current passing through the piezoelectric piece satisfies the following relationship: .

[0060] The equivalent impedance of the connection between the two ends of the piezoelectric piece can be calculated Where Z(s) represents the equivalent impedance and Rc represents the resistance in the circuit. The transfer function G(s) of the MCU can be calculated from the above formula. By discretizing the transfer function into a differential equation and implementing the differential equation with the MCU, the required impedance can be synthesized, and the designed shunt circuit can be simulated using a digital circuit.

[0061] Figure 7 A schematic diagram of the structure of a pipeline vibration control device provided by an embodiment of the present invention. This embodiment of the present invention is applicable to situations where a pipeline has multiple vibration frequencies that need to be controlled. The device can execute a pipeline vibration control method and can be implemented in hardware and / or software.

[0062] See also Figure 7 The pipeline vibration control device shown includes: a vibration information acquisition module 701, an element parameter calculation module 702 and a vibration frequency suppression module 703, wherein the vibration information acquisition module is used to obtain the vibration position of the target pipeline and at least one vibration frequency of the vibration position; a piezoelectric array unit is configured at the vibration position; the piezoelectric array unit is connected to at least one shunt branch; the number of shunt branches is the same as the number of vibration frequencies; the element parameter calculation module is used to calculate the parameter value of each element in the shunt branch corresponding to the vibration frequency based on the vibration frequency; the vibration frequency suppression module is used to control the shunt branch to output a modulation voltage signal to the piezoelectric array unit based on the parameter value of each element in the shunt branch corresponding to the vibration frequency to suppress the vibration frequency.

[0063] The technical solution of the embodiment of the present invention obtains the vibration position of the target pipeline and the corresponding vibration frequencies at the vibration position, and suppresses the vibration frequency of the pipeline through a piezoelectric array unit configured at the vibration position. The number of shunt branches is the same as the number of vibration frequencies, and each shunt branch outputs a voltage signal to the piezoelectric array unit to suppress different vibration frequencies. This solves the technical problem that the prior art can only control vibrations of a single frequency and cannot simultaneously suppress vibrations of multiple different frequencies, and can achieve the suppression of multiple different vibration frequencies of the pipeline.

[0064] In some embodiments, the shunt branch includes a first parallel circuit and a second parallel circuit, the first parallel circuit and the second parallel circuit are connected in series to form the shunt branch; the inductor and the filter capacitor are connected in parallel to form the first parallel circuit; the inductor and the resistor are connected in parallel to form the second parallel circuit.

[0065] In some embodiments, in terms of calculating the parameter values ​​of each component in the shunt branch corresponding to the vibration frequency based on the vibration frequency, the component parameter calculation module is specifically used to: calculate the inductance value of the inductor of the first parallel circuit in each shunt branch based on the angular frequency corresponding to each vibration frequency and the capacitance value of the filter capacitor of the first parallel circuit; calculate the inductance value of the inductor of the second parallel circuit in each shunt branch based on the angular frequency corresponding to each vibration frequency and the capacitance value of the piezoelectric array unit; determine the parameter value of each component in each shunt branch based on the inductance value of the inductor of the first parallel circuit in each shunt branch and the inductance value of the inductor of the second parallel circuit in each shunt branch.

[0066] In some embodiments, in terms of controlling the shunt branch to output a modulated voltage signal to the piezoelectric array unit according to the parameter values ​​of each element in the shunt branch corresponding to the vibration frequency to suppress the vibration frequency, the vibration frequency suppression module is specifically used to: generate a modulated voltage signal matching the vibration frequency according to the vibration frequency and the parameter values ​​of each element in the shunt branch corresponding to the vibration frequency; output the modulated voltage signal to the piezoelectric array unit so that the piezoelectric array unit generates an anti-phase mechanical response at the target vibration frequency and suppresses the vibration frequency.

[0067] In some embodiments, the piezoelectric sheet array unit includes: a piezoelectric fiber sheet; and two circles of piezoelectric fiber sheets are alternately installed in the target pipeline.

[0068] In some embodiments, in terms of obtaining the vibration position of the target pipeline and at least one vibration frequency of the vibration position, the vibration information acquisition module is specifically used to: obtain the geometric structure, material properties and vibration data of the target pipeline; the vibration data includes: pipeline acceleration and pipeline displacement; based on the geometric structure and material properties of the target pipeline, establish a simulation model to determine at least one vibration position of the target pipeline; and calculate at least one vibration frequency of the vibration position based on the vibration data of the target pipeline.

[0069] The pipeline vibration control device provided in the embodiment of the present invention can execute the pipeline vibration control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the pipeline vibration control method.

[0070] Figure 8 A schematic structural diagram of a pipeline vibration control device provided in an embodiment of the present invention.

[0071] like Figure 8As shown, piping vibration control device 800 includes at least one processor 801 and memory, such as read-only memory (ROM) 802 and random access memory (RAM) 803, communicatively connected to the at least one processor 801. The memory stores computer programs executable by the at least one processor. Processor 801 can perform various appropriate actions and processes based on the computer programs stored in ROM 802 or loaded from storage unit 808 into RAM 803. RAM 803 can also store various programs and data required for the operation of piping vibration control device 800. Processor 801, ROM 802, and RAM 803 are interconnected via a bus 804. An input / output (I / O) interface 808 is also connected to bus 804.

[0072] Multiple components in the pipeline vibration control device 800 are connected to the I / O interface 805, including an input unit 806, such as a keyboard and mouse; an output unit 807, such as various types of displays and speakers; a storage unit 808, such as a magnetic disk and optical disk; and a communication unit 809, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 809 allows the pipeline vibration control device 800 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0073] Processor 801 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Examples of processor 801 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any other suitable processor, controller, microcontroller, etc. Processor 801 executes the various methods and processes described above, such as the pipeline vibration control method.

[0074] In some embodiments, the piping vibration control method can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 808. In some embodiments, part or all of the computer program can be loaded and / or installed into the piping vibration control device 800 via ROM 802 and / or communication unit 809. When the computer program is loaded into RAM 803 and executed by processor 801, one or more steps of the piping vibration control method described above can be performed. Alternatively, in other embodiments, processor 801 can be configured to execute the piping vibration control method via any other suitable means (e.g., via firmware).

[0075] Various embodiments of the systems and techniques described above can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0076] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0077] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or apparatus. A computer-readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or apparatus, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media may include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0078] To provide user interaction, the systems and techniques described herein can be implemented on an operation detection device that includes: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the pipeline vibration control device. Other types of devices can also be used to provide user interaction; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic input, voice input, or tactile input.

[0079] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0080] A computing system may include clients and servers. The clients and servers are generally remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS (Virtual Private Server) services.

[0081] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0082] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A pipeline vibration control method, characterized in that: The method comprises: Acquiring a vibration position of a target pipeline and at least one vibration frequency of the vibration position; a piezoelectric array unit is disposed at the vibration position; the piezoelectric array unit is connected to at least one shunt branch; the number of the shunt branches is the same as the number of the vibration frequencies; Calculating, according to the vibration frequency, parameter values ​​of each component in the shunt branch corresponding to the vibration frequency; According to the parameter value of each element in the shunt branch corresponding to the vibration frequency, the shunt branch is controlled to output a modulation voltage signal to the piezoelectric array unit to suppress the vibration frequency.

2. The method according to claim 1, characterized in that The shunt branch includes a first parallel circuit and a second parallel circuit, and the first parallel circuit and the second parallel circuit are connected in series to form the shunt branch; The inductor and the filter capacitor are connected in parallel to form the first parallel circuit; the inductor and the resistor are connected in parallel to form the second parallel circuit.

3. The method according to claim 2, characterized in that Calculating the parameter value of each component in the shunt branch corresponding to the vibration frequency according to the vibration frequency includes: Calculating the inductance of the inductor of the first parallel circuit in each of the shunt branches according to the angular frequency corresponding to each of the vibration frequencies and the capacitance of the filter capacitor of the first parallel circuit; Calculating the inductance of the inductor of the second parallel circuit in each shunt branch according to the angular frequency corresponding to each vibration frequency and the capacitance value of the piezoelectric array unit; The parameter value of each component in each shunt branch is determined according to the inductance value of the inductor of the first parallel circuit in each shunt branch and the inductance value of the inductor of the second parallel circuit in each shunt branch.

4. The method according to claim 1, wherein The step of controlling the shunt branch to output a modulation voltage signal to the piezoelectric array unit according to the parameter value of each element in the shunt branch corresponding to the vibration frequency to suppress the vibration frequency includes: generating the modulation voltage signal matching the vibration frequency according to the vibration frequency and the parameter values ​​of the components in the shunt branch corresponding to the vibration frequency; The modulated voltage signal is output to the piezoelectric array unit, so that the piezoelectric array unit generates an anti-phase mechanical response at a target vibration frequency and suppresses the vibration frequency.

5. The method according to claim 1, wherein The piezoelectric sheet array unit includes: piezoelectric fiber sheets; two circles of piezoelectric fiber sheets are staggeredly installed in the target pipeline.

6. The method according to claim 1, characterized in that The obtaining of the vibration position of the target pipeline and at least one vibration frequency of the vibration position includes: Acquiring the geometric structure, material properties and vibration data of the target pipeline; the vibration data includes: pipeline acceleration and pipeline displacement; Establishing a simulation model based on the geometric structure and material properties of the target pipeline to determine at least one vibration position of the target pipeline; At least one vibration frequency of the vibration position is calculated based on the vibration data of the target pipeline.

7. A pipeline vibration control device, characterized in that: include: A vibration information acquisition module is configured to acquire a vibration position of a target pipeline and at least one vibration frequency at the vibration position; a piezoelectric array unit is configured at the vibration position; the piezoelectric array unit is connected to at least one shunt branch; the number of the shunt branches is the same as the number of the vibration frequencies; An element parameter calculation module, configured to calculate, based on the vibration frequency, the parameter value of each element in the shunt branch corresponding to the vibration frequency; The vibration frequency suppression module is used to control the shunt branch to output a modulation voltage signal to the piezoelectric array unit according to the parameter value of each element in the shunt branch corresponding to the vibration frequency, so as to suppress the vibration frequency.

8. The device according to claim 7, characterized in that The shunt branch includes a first parallel circuit and a second parallel circuit, and the first parallel circuit and the second parallel circuit are connected in series to form the shunt branch; The inductor and the filter capacitor are connected in parallel to form the first parallel circuit; the inductor and the resistor are connected in parallel to form the second parallel circuit.

9. A pipeline vibration control device, characterized in that: The pipeline vibration control device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor. The computer program is executed by the at least one processor to enable the at least one processor to perform the pipeline vibration control method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the pipeline vibration control method according to any one of claims 1 to 7 when executed.

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