Excitation characteristic simulation device, method, electronic device and storage medium for airfoil structure

Abstract

The application provides a blade disc structure excitation characteristic simulation device, method, electronic equipment and storage medium, relates to the field of aviation technology, and can effectively avoid the problem of high-cycle fatigue failure caused by order excitation of the blade disc structure. The blade disc structure excitation characteristic simulation device comprises a blade disc structure, a sound source excitation module, a sensing assembly and a controller connected with the sensing assembly, the blade disc structure comprises a plurality of blades, and the sound source excitation module comprises a plurality of sound wave excitation sources connected with the controller. The blade disc structure excitation characteristic simulation method is used for simulating the excitation characteristics of the blade disc structure. The electronic equipment and the non-transient computer readable storage medium storing computer instructions are used for executing the blade disc structure excitation characteristic simulation method. The blade disc structure excitation characteristic simulation device, method, electronic equipment and storage medium provided by the application are used in the simulation experiment of the blade disc structure.

Description

Technical Field

[0001] This invention relates to the field of aerospace technology, and in particular to a device, method, electronic device, and storage medium for simulating the excitation characteristics of a bladed disk structure. Background Technology

[0002] In the integral bladed disk structure of aero-engines, there is often strong bladed disk coupled vibration. Due to the characteristics of advanced engine blades and disks being lightweight and having high blade aerodynamic loads, there is often stronger interference between the blades and the fluid, and the high-cycle fatigue problem caused by high-amplitude blade-disk coupled vibration is more prominent.

[0003] In related technologies, high-cycle fatigue is the most common cause of bladed disk structures due to the forced vibration response caused by the static-rotation interference. The excitation source of the forced vibration has obvious characteristics of order excitation, mainly manifested as periodic airflow disturbance, with the disturbance order being the number of upstream and downstream blades. Numerical simulation of order excitation in bladed disk structures involves fluid-structure interaction numerical methods that are inefficient and have high uncertainty. Furthermore, simplified whistle and duct whistle tests can only simulate single-component order excitation and are only suitable for single-blade tests, not for bladed disk coupled vibration analysis. In addition, traditional bench dynamic stress testing of aero-engine bladed disk structures is complex and costly. Summary of the Invention

[0004] The purpose of this invention is to provide a device, method, electronic device and storage medium for simulating the excitation characteristics of an impeller structure, which can effectively avoid the problem of high-cycle fatigue failure caused by order excitation of the impeller structure.

[0005] In a first aspect, the present invention provides an excitation characteristic simulation device for an impeller structure, comprising: an impeller structure component, a sound source excitation module, a sensing component, and a controller connected to the sensing component by a signal; the impeller structure component includes multiple blades, the sound source excitation module includes multiple acoustic excitation sources connected to the controller by a signal, the controller is used to control each acoustic excitation source to excite the corresponding blade based on order excitation parameters and adjustable acoustic control parameters, to obtain vibration parameters of each blade from the sensing component, and to determine the excitation characteristics of the impeller structure based on the vibration parameters of each blade, wherein the excitation characteristics include at least order excitation characteristics.

[0006] Compared with existing technologies, the excitation characteristic simulation device for bladed disk structures provided by this invention includes multiple blades in the bladed disk structure and multiple acoustic excitation sources connected to the controller via signals in the acoustic source excitation module. Therefore, the controller controls each acoustic excitation source to excite the corresponding blade based on order excitation parameters and adjustable acoustic control parameters, thereby achieving order excitation of the blades. Since the sensing component is connected to the controller via signals, it can acquire the vibration parameters of each blade through the vibration of each blade and transmit them to the controller, allowing the controller to determine at least the order excitation characteristics of the bladed disk structure based on the vibration parameters of each blade. Furthermore, since the acoustic control parameters of this invention are adjustable, when controlling each acoustic excitation source to excite the corresponding blade based on the order excitation parameters and adjustable acoustic control parameters, the adjustable acoustic control parameters and order excitation parameters can work together to control each acoustic excitation source to perform multimodal excitation on the corresponding blade. Based on this, the sensing component acquires the multimodal blade vibration parameters and transmits them to the controller, ensuring that the controller can determine the multimodal excitation characteristics of the bladed disk structure based on the multimodal vibration parameters of each blade.

[0007] Secondly, the present invention provides a method for simulating the excitation characteristics of an impeller structure, comprising:

[0008] In at least one bladed disk structure mode, each acoustic excitation source is controlled to excite the corresponding blade based on the order excitation parameters and adjustable acoustic control parameters.

[0009] Vibration parameters of each blade from the sensing component are obtained;

[0010] The excitation characteristics of the bladed disk structure are determined based on the vibration parameters of each blade, and the excitation characteristics include at least the order excitation characteristics.

[0011] Compared with the prior art, the beneficial effects of the excitation characteristic simulation method of the bladed disk structure provided by the present invention are the same as the beneficial effects of the excitation characteristic simulation device of the bladed disk structure described in the present invention, and will not be repeated here.

[0012] Thirdly, the present invention provides an excitation characteristic device for an impeller structure, comprising:

[0013] The control module is used to control each acoustic excitation source to excite the corresponding blade based on the order excitation parameters and adjustable acoustic control parameters.

[0014] The acquisition module is used to acquire vibration parameters from each blade of the sensing component;

[0015] The determination module is used to determine the excitation characteristics of the bladed disk structure based on the vibration parameters of each blade. The excitation characteristics include at least the order excitation characteristics.

[0016] Compared with the prior art, the beneficial effects of the excitation characteristic device of the bladed disk structure provided by the present invention are the same as the beneficial effects of the excitation characteristic simulation device of the bladed disk structure described in the present invention, and will not be repeated here.

[0017] Fourthly, the present invention provides an electronic device, comprising:

[0018] Processor; and,

[0019] Memory for stored programs;

[0020] The program includes instructions that, when executed by the processor, cause the processor to perform the method according to the present invention.

[0021] Compared with the prior art, the beneficial effects of the electronic device provided by the present invention are the same as those of the excitation characteristic simulation device of the bladed disk structure described in the present invention, and will not be repeated here.

[0022] Fifthly, the present invention provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to perform the method according to the present invention.

[0023] Compared with the prior art, the beneficial effects of the electronic device provided by the present invention are the same as those of the excitation characteristic simulation device of the bladed disk structure described in the present invention, and will not be repeated here. Attached Figure Description

[0024] Further details, features, and advantages of the invention are disclosed in the following description of exemplary embodiments in conjunction with the accompanying drawings, in which:

[0025] Figure 1 A structural block diagram of an excitation characteristic simulation device for a bladed disk structure, which is an exemplary embodiment of the present invention;

[0026] Figure 2 A structural diagram of an excitation characteristic simulation device for an impeller structure according to an exemplary embodiment of the present invention is shown;

[0027] Figure 3 A structural diagram of the sound source excitation module of the excitation characteristic simulation device of the present invention is shown;

[0028] Figure 4 A flowchart illustrating the excitation characteristics simulation method of an impeller structure according to an exemplary embodiment of the present invention is shown.

[0029] Figure 5 A flowchart illustrating the adjustable acoustic control parameters of the excitation characteristic simulation method of the present invention is shown;

[0030] Figure 6A schematic diagram of the excitation characteristic device of the bladed disk structure according to an exemplary embodiment of the present invention is shown;

[0031] Figure 7 A schematic diagram of the hardware structure of an electronic device according to an exemplary embodiment of the present invention is shown;

[0032] Figure 8 This is a schematic diagram of the chip structure as an exemplary embodiment of the present invention.

[0033] Figure label:

[0034] 101-Blade disk structural component, 1011-Blade, 102-Sound source excitation module, 1021-Sound wave excitation source, 1021a-Speaker, 1021b-Sound collector cover, 103-Sensing component, 104-Controller, 105-Sound waveguide, 106-Frame, 107-Base, 700-Analog device electronic equipment hardware, 710-Processor, 720-Memory, 730-Communication interface, 740-Communication route, 750-Processor, 800-Chip, 810-Processor, 820-Memory, 830-Communication interface, 840-Communication route. Detailed Implementation

[0035] To make the technical problems, solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0038] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In the integral bladed disk structure of aero-engines, there is often strong bladed disk coupled vibration. Due to the thinness of advanced engine blades and disks and the high aerodynamic load of the blades, there is often a stronger interference between the blades and the fluid. The high-amplitude blade-disk coupled vibration leads to more prominent high-cycle fatigue problems.

[0041] Related technical research has found that over 90% of high-cycle fatigue problems in aero-engine blades can be resolved during the design phase. However, the remaining 10% of high-cycle fatigue problems promote crack initiation, potentially reducing blade life by more than half and causing over 25% of engine failures. Of these engine failures, 56% of the major failures are due to high-cycle fatigue. Research has revealed that the most common high-cycle fatigue in aero-engine bladed disk structures is the forced vibration response problem caused by blade rotation-stationary interference. This forced vibration includes wake excitation and potential flow disturbance. This excitation source exhibits distinct order-based excitation characteristics, specifically manifested as periodic airflow disturbances, with the disturbance order corresponding to the number of upstream and downstream blades.

[0042] In the existing technology, the fluid-structure interaction numerical method involved in the numerical simulation of the order excitation of the bladed disk structure is inefficient and has high uncertainty. Furthermore, the simplified whistle and pipe whistle tests can only simulate single-component order excitation and can only be used for single-blade tests. They are not suitable for bladed disk coupled vibration analysis. In addition, the traditional test process for dynamic stress of aero-engine bladed disk structure bench is complex and costly.

[0043] To address the aforementioned problems, this invention provides a device for simulating the excitation characteristics of an impeller structure, which can effectively avoid the high-cycle fatigue failure caused by order-based excitation of the impeller structure. Figure 1A structural block diagram of a device for simulating the excitation characteristics of an impeller structure according to an embodiment of the present invention is shown. Figure 1 As shown, the excitation characteristic simulation device of the bladed disk structure in this embodiment of the invention includes: a bladed disk structure component 101, a sound source excitation module 102, a sensing component 103, and a controller 104 that is signal-connected to the sensing component.

[0044] Figure 2 A structural diagram of an excitation characteristic simulation device for an impeller structure according to an exemplary embodiment of the present invention is shown, as follows: Figure 2 As shown, the aforementioned bladed disk structure includes multiple blades 1011, the number of which can be related to the sound source excitation module 102, enabling the sound source excitation module 102 to excite the corresponding blades. This bladed disk structure can be an aircraft engine bladed disk, a common vehicle engine bladed disk, or a watercraft engine bladed disk, but is not limited to these.

[0045] like Figure 2 As shown, the aforementioned acoustic excitation module 102 includes multiple acoustic excitation sources 1021 connected to the controller via signals. The controller 104 controls each acoustic excitation source 1021 to excite the corresponding blade 1011 based on order excitation parameters and adjustable acoustic control parameters, acquires vibration parameters of each blade from the sensing component 103, and determines the excitation characteristics of the bladed disk structure based on the vibration parameters of each blade 1011. The excitation characteristics include at least order excitation characteristics. The excitation characteristics of the exemplary embodiment of the present invention also include at least one of modal vibration characteristics and vibration response characteristics. Therefore, each acoustic excitation source can excite the vibration of the corresponding blade; thus, the acoustic excitation source can be designed and manufactured based on the number of blades in the bladed disk structure.

[0046] In practical applications, order excitation parameters and adjustable acoustic control parameters can be input into the controller, which can then generate multi-channel excitation signals based on these parameters. These excitation signals can be acoustic excitation or other excitation methods that are similar to or based on the same acoustic excitation principle.

[0047] Each channel's excitation signal essentially corresponds to a specific blade; here, each channel's excitation signal can correspond to one blade. When each channel's excitation signal corresponds to one blade, and different channels' excitation signals correspond to different blades, multiple channels of excitation signals can be used to excite different blades. Based on this, vibration parameters of different blades can be collected using sensing components and transmitted back to the controller, allowing the controller to analyze at least the order excitation characteristics of the bladed disk structure based on the vibration parameters of different blades. Furthermore, an exemplary embodiment of the present invention can also utilize adjustable acoustic control parameters to adjust the order excitation parameters. The controller can generate excitation acoustic waves of arbitrary waveforms; the amplitude, frequency, and phase of the excitation acoustic waves can be arbitrarily adjusted, thereby achieving vibration control of different order modes, and thus controlling each acoustic excitation source to perform multimodal excitation on the corresponding blade.

[0048] As can be seen, in the excitation characteristic simulation device for the bladed disk structure provided by the exemplary embodiment of the present invention, the bladed disk structure includes multiple blades, and the acoustic source excitation module includes multiple acoustic excitation sources connected to the controller. Therefore, the controller is used to control each acoustic excitation source to excite the corresponding blade based on the order excitation parameters and adjustable acoustic control parameters, thereby realizing the order excitation of the blade. Since the sensing component is connected to the controller, the sensing component can obtain the vibration parameters of each blade through the vibration of each blade and transmit them to the controller, so that the controller can determine the order excitation characteristics of the bladed disk structure based on the vibration parameters of each blade. Moreover, since the acoustic control parameters of the present invention are adjustable acoustic control parameters, when each acoustic excitation source excites the corresponding blade based on the order excitation parameters and adjustable acoustic control parameters, the adjustable acoustic control parameters and the order excitation parameters can cooperate to control each acoustic excitation source to perform multimodal excitation on the corresponding blade. On this basis, the multimodal blade vibration parameters are obtained by the sensing component and transmitted to the controller, thereby ensuring that the controller can determine the multimodal excitation characteristics of the bladed disk structure based on the multimodal vibration parameters of each blade.

[0049] It should be noted that the excitation characteristic simulation device for the bladed disk structure in the exemplary embodiment of the present invention may further include an analog input / output acquisition card connected to the controller signal. The analog input / output acquisition card has multiple channels, and the multi-channel excitation signal can be output to different acoustic excitation sources through different channels. Furthermore, to enhance the excitation signal output by the controller, the excitation characteristic simulation device for the bladed disk structure in the exemplary embodiment of the present invention further includes a signal amplifier. The analog input / output acquisition card is connected to the acoustic excitation source signal through the signal amplifier to amplify the excitation signal before transmitting it to the corresponding acoustic excitation source.

[0050] In one alternative approach, considering that different vibration parameters will be generated when the blade is excited, the vibration characteristics of the blade disk structure itself (e.g., the vibration state of the blade disk structure and the sound field of the test environment) will be affected. Therefore, the excited part of the blade in the exemplary embodiment of the present invention can be determined by the vibration characteristics of the blade disk structure.

[0051] In practical applications, finite element modal analysis is performed on the bladed disk structure using a controller to obtain the mode shapes and frequencies of the bladed disk structure. Based on the finite element modal analysis, the locations of the blades that are subjected to acoustic wave excitation are determined, and acoustic waveguides for fixing loudspeakers are placed below each location of the blade subjected to acoustic wave excitation.

[0052] In practical applications, such as Figure 2 As shown, the excitation characteristic simulation device for the bladed disk structure of the exemplary embodiment of the present invention further includes a plurality of acoustic waveguides 105, each acoustic waveguide 105 being disposed at the blade 1011, and an acoustic excitation source 1021 being disposed at the end of the acoustic waveguide 105 away from the corresponding blade 1011. The acoustic waveguides 105 are disposed at the blade 1011, and can transmit the acoustic waves generated by each acoustic excitation source to the blade 1011 through the acoustic waveguides according to the excitation characteristics of the bladed disk structure. Here, it should be understood that the acoustic waveguide has two ports, and the acoustic waves generated by the acoustic excitation source enter through the port of the acoustic waveguide away from the corresponding blade.

[0053] For example, Figure 3 A structural diagram of the sound source excitation module of the excitation characteristic simulation device of the present invention is shown, as illustrated in the exemplary embodiment of the present invention. Figure 3 As shown, the aforementioned acoustic excitation source 1021 may include a loudspeaker 1021a and a sound collection cover 1021b. The loudspeaker 1021a is connected to the controller, and the controller outputs an excitation signal to the acoustic excitation source 1021. The loudspeaker 1021a in the acoustic excitation source receives the excitation signal and outputs an excitation sound wave. The sound collection cover 1021b is located at the sound outlet of the loudspeaker 1021a. It can not only collect the excitation sound wave generated in the loudspeaker, but also avoid interference with the excitation sound waves in other loudspeakers. The sound collection cover 1021b transmits the collected excitation sound wave to the corresponding blade through the port of the acoustic waveguide at the end away from the corresponding blade. Here, it should be understood that the sound outlet of the sound collection cover and the end of the acoustic waveguide away from the corresponding blade are connected by a flexible hose, or other forms of soft contact can be used for connection, which will not be elaborated here.

[0054] For example, when loudspeakers in an acoustic excitation source amplify the excitation signal, the controller can comprehensively control the amplitude, phase, and frequency of each loudspeaker to simulate the rotation-to-station interference, intake distortion, and order-like pulsating airflow caused by structural asymmetry in the bladed disk structure. This allows for efficient simulation of the order-like excitation characteristics of the bladed disk structure in a laboratory environment without the need for rotational testing. Furthermore, the controller can comprehensively control the phase difference of each loudspeaker to simulate the influence of inter-blade phase angle and traveling wave excitation on the forced vibration response.

[0055] In one alternative embodiment, the sensing component includes: a first sensor for acquiring excitation parameters generated by the acoustic excitation source exciting the blades, and a second sensor for acquiring vibration parameters generated by the acoustic excitation source exciting the blades.

[0056] For example, the first sensor includes a microphone sensor, and the controller is signal-connected to the microphone sensor. The second sensor includes at least one of an acceleration sensor, a laser displacement sensor, and a strain sensor, and the controller is signal-connected to the acceleration sensor, the laser displacement sensor, and the strain sensor, respectively.

[0057] In practical applications, the first and second sensors are attached to the bladed disk. When the first and second sensors are directly above the acoustic waveguide, the first sensor receives excitation parameters from the bladed disk structure, and the second sensor receives vibration parameters from the bladed disk structure. The excitation signal generated in the controller acts on the blade, and the first and second sensors feed back the collected signals to the controller. The controller can then control the amplitude and phase of the excitation signal based on the signals collected by the first and second sensors, enabling real-time monitoring of the vibration state of the bladed disk under test and the acoustic field of the test environment.

[0058] In one alternative approach, such as Figure 2 As shown, the excitation characteristic simulation device of the bladed disk structure in an exemplary embodiment of the present invention further includes a base 107 and a frame 106 disposed on the base. The bladed disk structure component 101 is disposed on the frame 106. The sound source excitation module 102 is disposed on the base 107. The sound source excitation module 102 includes a plurality of sound wave excitation sources 1021. The plurality of sound wave excitation sources 1021 are opposite to the sound wave guides 105 disposed on the blade surface. The sound outlets of the sound collection covers 1021b of the plurality of sound wave excitation sources are connected to the end of the sound wave guides away from the corresponding blades through a flexible tube. The sensing component 103 is disposed on the bladed disk structure component 101.

[0059] Based on the excitation characteristic simulation device for the aforementioned bladed disk structure, it can be seen that the controller outputs excitation signals from different channels, which enter the loudspeakers. By applying superimposed excitations of multiple modes to each loudspeaker, the superimposed influence of multiple rows of stators on the rotor can be simulated. Furthermore, this excitation characteristic simulation device for the aforementioned bladed disk structure can be applied to mistuned bladed disks (distuned bladed disks, out-of-tuned bladed disks, non-coordinated bladed disks, and inharmonious bladed disks) designed for process errors or vibration prevention, to simulate the forced vibration response and vibration localization problems of mistuned bladed disk structures.

[0060] like Figure 4 As shown in the exemplary embodiment of the present invention, a method for simulating the excitation characteristics of an bladed disk structure is also provided, including:

[0061] Step 401: Under at least one bladed disk structure mode, control each acoustic excitation source to excite the corresponding blade based on the order excitation parameters and adjustable acoustic control parameters;

[0062] Step 402: Obtain vibration parameters from each blade of the sensing component;

[0063] Step 403: Determine the excitation characteristics of the bladed disk structure based on the vibration parameters of each blade. The excitation characteristics shall include at least the order excitation characteristics.

[0064] Adjustable acoustic control parameters include amplitude control parameters and frequency control parameters. Based on the order excitation parameters and adjustable acoustic control parameters, each acoustic excitation source excites the corresponding blade, including:

[0065] Step 501: Determine the excitation phase control parameters based on the order and order multiple;

[0066] Step 502: Control the excitation phase angle of each acoustic excitation source based on the phase control parameters of different excitation signals. The excitation phase angle is used to generate a phase difference between different excitation signals by utilizing the phase control parameters.

[0067] Step 503: Control the excitation parameters of each acoustic excitation source based on the vibration parameters of the excitation signal, so as to use the vibration parameters to control each acoustic excitation source to excite the corresponding blade to generate different excitation parameters.

[0068] Step 504: The excitation phase angle is also used to simulate the effects of inter-leaf phase angle and traveling wave excitation on the forced vibration response;

[0069] Step 505: The order excitation parameters include the order number and the order multiple. Based on the order number and the order multiple input in the order excitation, calculate the excitation phase angle. Excitation phase angle = 360° / (order number × order multiple).

[0070] Figure 6 A schematic diagram of the excitation characteristic device of the bladed disk structure provided in an embodiment of the present invention is shown, as follows: Figure 6 As shown, the excitation characteristic device 600 of the bladed disk structure includes:

[0071] Control module 601 is used to control each acoustic excitation source to excite the corresponding blade based on the order excitation parameters and adjustable acoustic control parameters;

[0072] Acquisition module 602 is used to acquire vibration parameters from each of the blades of the sensing component;

[0073] The determination module 603 is used to determine the excitation characteristics of the bladed disk structure based on the vibration parameters of each blade, and the excitation characteristics include at least the order excitation characteristics.

[0074] Figure 7 A schematic diagram of the hardware structure of an electronic device according to an embodiment of the present invention is shown. Figure 7 As shown, the electronic device includes a processor 710 and a communication interface 730.

[0075] like Figure 7 As shown, the processor 710 described above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present invention. The communication interface 730 described above can be one or more. The communication interface 730 can use any transceiver-like device for communicating with other devices or communication networks.

[0076] like Figure 7 As shown, the electronic device described above may also include a communication line. The communication line may include a path for transmitting information between the components described above.

[0077] Optional, such as Figure 7 As shown, the electronic device may further include a memory 720. The memory 720 stores computer execution instructions for implementing the present invention, and its execution is controlled by a processor 710. The processor 710 executes the computer execution instructions stored in the memory 720, thereby implementing the method provided in the embodiments of the present invention.

[0078] like Figure 7As shown, the memory 720 can be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, a random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital versatile optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory 720 can exist independently and be connected to the processor 710 via a communication line. The memory 720 can also be integrated with the processor 710.

[0079] Optionally, the computer execution instructions in the embodiments of the present invention may also be referred to as application code, and the embodiments of the present invention do not specifically limit this.

[0080] In a specific implementation, as one example, such as Figure 7 As shown, processor 710 may include one or more CPUs, such as Figure 7 CPU0 and CPU1 in the CPU.

[0081] In a specific implementation, as one example, such as Figure 7 As shown, the terminal device may include multiple processors 710, such as Figure 7 The processor 710 in the process. Each of these processors 710 can be a single-core processor 710 or a multi-core processor 710.

[0082] Figure 8 This is a schematic diagram of the structure of chip 800 provided in an embodiment of the present invention. Figure 8 As shown, the chip 800 includes one or more processors 810 and a communication interface 830.

[0083] Optional, such as Figure 8As shown, the chip 800 also includes a memory 820, which may include a read-only memory 820 and a random access memory 820, and provides operation instructions and data to the processor 810. A portion of the memory 820 may also include non-volatile random access memory (NVRAM).

[0084] In some implementations, such as Figure 8 As shown, memory 820 stores the following elements: execution modules or data structures, or subsets thereof, or extended sets thereof.

[0085] In embodiments of the present invention, such as Figure 8 As shown, the corresponding operation is executed by calling the operation instructions stored in memory 820 (which can be stored in the operating system).

[0086] like Figure 8 As shown, the processor 810 controls the processing operations of any one of the terminal devices. The processor 810 can also be called a central processing unit (CPU).

[0087] like Figure 8 As shown, memory 820 may include read-only memory 820 and random access memory 820, and provides instructions and data to processor 810. A portion of memory 820 may also include NVRAM. For example, in an application, memory 820, communication interface 830, and memory 820 are coupled together via a bus system, which may include, in addition to a data bus, a power bus, a control bus, and a status signal bus, etc. However, for clarity, in... Figure 8 The general will label all buses as bus systems.

[0088] like Figure 8As shown, the methods disclosed in the above embodiments of the present invention can be applied to processor 810, or implemented by processor 810. Processor 810 may be an integrated circuit chip 800 with signal processing capabilities. During implementation, each step of the above method can be completed by integrated logic circuits in the hardware of processor 810 or by instructions in software form. The processor 810 may be a general-purpose processor 810, a digital signal processor 810 (DSP), an ASIC, a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor 810 may be a microprocessor 810, or any conventional processor 810, etc. The steps of the methods disclosed in the embodiments of the present invention can be directly manifested as being executed by hardware decoding processor 810, or executed by a combination of hardware and software modules in decoding processor 810. The software module can reside in a random access memory 820, flash memory, read-only memory 820, programmable read-only memory 820, electrically erasable programmable memory 820, registers, or other mature storage media in the art. This storage medium is located in memory 820, and processor 810 reads information from memory 820 and, in conjunction with its hardware, completes the steps of the above method.

[0089] One possible implementation is, such as Figure 8 As shown, the communication interface 830 is used to perform... Figures 4-5 The acquisition step in the illustrated embodiment. Processor 810 is used to execute Figures 4-5 The steps processed in the illustrated embodiment.

[0090] On the one hand, a computer-readable storage medium is provided, which stores instructions that, when executed, implement the functions performed by the memory 820 in the above embodiments.

[0091] On the one hand, a chip 800 is provided, which is applied in a terminal device. The chip 800 includes at least one processor 810 and a communication interface 830. The communication interface 830 and at least one processor 810 are coupled. The processor 810 is used to run instructions to implement the functions performed by the processor 810 in the above embodiments.

[0092] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present invention are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a terminal, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video disc (DVD); or it can be a semiconductor medium, such as a solid-state drive (SSD).

[0093] Although the invention has been described herein in conjunction with various embodiments, those skilled in the art will understand and implement other variations of the disclosed embodiments by reviewing the accompanying drawings, the disclosure, and the appended claims in carrying out the claimed invention. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude a plurality. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0094] Although this disclosure has been described in conjunction with specific features and embodiments, it will be apparent that various modifications and combinations can be made therein without departing from the spirit and scope of this disclosure. Accordingly, this specification and drawings are merely exemplary illustrations of the disclosure as defined by the appended claims and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this disclosure. It is obvious that those skilled in the art can make various alterations and modifications to this disclosure without departing from its spirit and scope. Thus, this disclosure is also intended to include any such modifications and modifications that fall within the scope of the claims of this disclosure and their equivalents.

Claims

1. A device for simulating the excitation characteristics of an impeller disk structure, characterized in that, include: The impeller structure, the sound source excitation module, the sensing component, and the controller connected to the sensing component; The bladed disk structure includes multiple blades, the sound source excitation module includes multiple sound wave excitation sources connected to the controller, the sensing component is disposed on the bladed disk structure, the controller is used to control each of the sound wave excitation sources to excite the corresponding blades based on the order excitation parameters and adjustable sound wave control parameters, obtain the vibration parameters of each blade from the sensing component, and determine the excitation characteristics of the bladed disk structure based on the vibration parameters of each blade, the excitation characteristics including at least the order excitation characteristics; The device for simulating the excitation characteristics of the bladed disk structure also includes multiple acoustic waveguides, which are located at the blades, and the acoustic excitation source is located at the end of the acoustic waveguides away from the corresponding blade. Each of the acoustic excitation sources includes a loudspeaker and a sound collector. The loudspeaker is signal-connected to the controller, and the sound collector is located at the sound outlet of the loudspeaker. The sound outlet of the sound collector is connected to the end of the acoustic waveguide opposite to the corresponding blade.

2. The excitation characteristic simulation device for a bladed disk structure according to claim 1, characterized in that, The excitation characteristics also include at least one of modal vibration characteristics and vibration response characteristics.

3. The excitation characteristic simulation device for a bladed disk structure according to claim 1, characterized in that, The location of the blade that is excited is determined by the vibration characteristics of the bladed disk structure.

4. The excitation characteristic simulation device for a bladed disk structure according to any one of claims 1 to 3, characterized in that, The sensing component includes: The first sensor is used to collect the excitation parameters generated by the acoustic excitation source exciting the blade; The second sensor is used to collect the vibration parameters generated by the acoustic excitation source exciting the blade.

5. The excitation characteristic simulation device for a bladed disk structure according to claim 4, characterized in that, The first sensor includes a microphone sensor, and the controller is signal-connected to the microphone sensor; The second sensor includes at least one accelerometer, laser displacement sensor, and strain sensor, and the controller is connected to the accelerometer, laser displacement sensor, and strain sensor respectively.

6. The excitation characteristic simulation device for a bladed disk structure according to claim 4, characterized in that, The excitation characteristic simulation device of the bladed disk structure also includes a base and a frame mounted on the base. The bladed disk structure is mounted on the frame, the sound source excitation module is mounted on the base, and multiple sound wave excitation sources are connected to the sound waveguides mounted on the blades.

7. A method for simulating the excitation characteristics of an impeller structure, applied to the device for simulating the excitation characteristics of an impeller structure as described in any one of claims 1-6, characterized in that, The method for simulating the excitation characteristics of the bladed disk structure includes: In at least one bladed disk structure mode, each acoustic excitation source is controlled to excite the corresponding blade based on the order excitation parameters and adjustable acoustic control parameters. Vibration parameters of each blade from the sensing component are obtained; The excitation characteristics of the bladed disk structure are determined based on the vibration parameters of each blade, and the excitation characteristics include at least order excitation characteristics.

8. The method for simulating the excitation characteristics of a bladed disk structure according to claim 7, characterized in that, The adjustable acoustic wave control parameters include amplitude control parameters and frequency control parameters. Controlling each acoustic wave excitation source to excite the corresponding blade based on the order excitation parameters and the adjustable acoustic wave control parameters includes: The excitation phase control parameters are determined based on the order and order multiple. The order excitation parameters and adjustable acoustic wave control parameters are input into the controller. The controller generates multi-channel excitation signals based on the order excitation parameters and adjustable acoustic wave control parameters. The excitation phase angle of the corresponding acoustic wave excitation source is controlled based on the excitation phase control parameters of different excitation signals. The excitation phase angle is used to generate a phase difference between different excitation signals using the phase control parameters. The vibration parameters of each acoustic excitation source are controlled based on the vibration parameters of the excitation signal. The excitation parameters are used to control each acoustic excitation source to excite the corresponding blade to generate different excitation parameters using the vibration parameters. The excitation phase angle is also used to simulate the influence of inter-leaf phase angle and traveling wave excitation on forced vibration response. The order excitation parameters include the order number and order multiple.

9. An excitation characteristic device for an impeller structure, applied to the excitation characteristic simulation device for an impeller structure as described in any one of claims 1 to 6, characterized in that, The excitation characteristic device of the bladed disk structure includes: The control module is used to control each acoustic excitation source to excite the corresponding blade based on the order excitation parameters and adjustable acoustic control parameters. An acquisition module is used to acquire vibration parameters from each of the blades in the sensing component; A determination module is used to determine the excitation characteristics of the bladed disk structure based on the vibration parameters of each blade, wherein the excitation characteristics include at least order excitation characteristics.

10. An electronic device, characterized in that, include: processor; as well as, Memory for stored programs; The program includes instructions that, when executed by the processor, cause the processor to perform the method according to any one of claims 7 to 8.

11. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to perform the method according to any one of claims 7 to 8.

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