Jump measurement method for honeycomb coating of compressor stator casing, storage medium and computer program product

Abstract

The invention provides a run-out measurement method for a honeycomb coating of a gas compressor stator casing, a storage medium and a computer program product. The run-out measurement method for the inner cavity of the stator casing of the gas compressor comprises the following steps: acquiring stator casing spigot eccentric data and a run-out data set of run-out measurement points of the inner cavity of the stator casing; assembling the stator casing to the engine, and performing run-out measurement on the stator casing in the engine state after the stator casing is assembled to obtain spigot eccentricity data in the engine state; and converting the spigot eccentric data in the engine state by combining the stator casing spigot eccentric data and the jump data set of the stator casing inner cavity jump measuring points to obtain a jump data set of the inner cavity position in the engine state. The runout measurement method can improve the measurement precision and efficiency.

Description

Technical Field

[0001] This invention relates to engine runout measurement, and more particularly to a method, storage medium, and computer program product for measuring the runout of a compressor stator casing honeycomb coating. Background Technology

[0002] During the assembly of aero-engines, the stator casing needs to be assembled separately on a precision turntable. During assembly, runout measurements and concentricity checks are performed on critical locations. This includes measuring the runout and concentricity of the honeycomb structure and coating position in the compressor stator relative to the front support point. This measurement requires inserting a probe deep into the stator cavity and positioning it at a designated measurement location.

[0003] However, due to the limitations of the stator casing's internal cavity structure and the constraints of the measurement position within the deep cavity, the measurement operation is extremely complex and requires multiple adjustments or custom-made measuring devices, resulting in low measurement efficiency. Furthermore, since it is impossible to directly observe whether the measurement position meets the requirements during the measurement process, the measurement accuracy is also affected. Summary of the Invention

[0004] The purpose of this invention is to provide a method, storage medium, and computer program product for measuring the runout of the honeycomb coating of a compressor stator casing, which can improve the accuracy and efficiency of runout measurement.

[0005] One aspect of the present invention provides a method for measuring the runout of the inner cavity of a compressor stator casing, comprising: acquiring stator casing stop eccentricity data and a set of runout data of runout measurement points in the stator casing inner cavity; assembling the stator casing to an engine, performing runout measurement on the stator casing in the engine state after assembly, and acquiring stop eccentricity data in the engine state; combining the stator casing stop eccentricity data and the set of runout data of runout measurement points in the stator casing inner cavity, converting the stop eccentricity data in the engine state to obtain a set of runout data of the inner cavity position in the engine state.

[0006] In one embodiment, the step of acquiring the stator casing stop eccentricity data and the set of runout data of the stator casing inner cavity runout measurement points includes: acquiring the stator casing front stop outer eccentricity angle and front stop outer eccentricity amount as stator casing front stop eccentricity data; acquiring the stator casing rear stop outer eccentricity angle and rear stop outer eccentricity amount as stator casing rear stop eccentricity data.

[0007] In one embodiment, the step of acquiring the stator casing stop eccentricity data and the set of runout data of the stator casing inner cavity position runout measurement points further includes: acquiring the angular phase of the stator casing inner cavity runout measurement points and the runout amplitude corresponding to the angular phase, and constructing the set of runout data of the stator casing inner cavity runout measurement points.

[0008] In one embodiment, the step of assembling the stator housing to the engine and measuring the runout of the stator housing in the engine state after assembly to obtain stop eccentricity data in the engine state includes: assembling the stator housing to the engine; measuring the runout of the stator housing in the engine state after assembly; obtaining the front stop outer eccentricity angle and the front stop outer eccentricity amount in the engine state as front stop eccentricity data in the engine state; and obtaining the rear stop outer eccentricity angle and the rear stop outer eccentricity amount in the engine state as rear stop eccentricity data in the engine state.

[0009] In one embodiment, the step of combining the stator casing stop eccentricity data and the set of runout data from the stator casing cavity runout measurement points to convert the stop eccentricity data in the engine state to obtain the set of runout data for the cavity position in the engine state includes: constructing a first stator axis based on the stator casing front stop eccentricity data and the stator casing rear stop eccentricity data; constructing a second stator axis based on the stator casing front stop eccentricity data and the stator casing rear stop eccentricity data in the engine state; and converting the set of runout data from the stator casing cavity runout measurement points based on the first stator axis and the second stator axis to obtain the set of runout data for the cavity position in the engine state.

[0010] In one embodiment, the first stator axis satisfies:

[0011]

[0012] Where u, v, and w are intermediate parameters, [uvw] is the first stator axis, θ1 is the external eccentricity angle of the front stop of the stator housing, p1 is the external eccentricity of the front stop of the stator housing, θ2 is the external eccentricity angle of the rear stop of the stator housing, p2 is the external eccentricity of the rear stop of the stator housing, and h is the axial distance between the front and rear stops of the stator housing.

[0013] In one embodiment, the second stator axis satisfies:

[0014]

[0015] Where x, y, and z are intermediate parameters, [xyz] is the second stator axis, θ3 is the front stop external eccentricity angle in the engine state, P3 is the front stop external eccentricity in the engine state, θ4 is the rear stop external eccentricity angle in the engine state, P4 is the rear stop external eccentricity in the engine state, and h is the axial distance between the front and rear stops of the stator casing.

[0016] In one embodiment, the set of data on the fluctuation of the internal cavity position under engine conditions satisfies:

[0017]

[0018] Among them, tf i α is the amplitude of the i-th fluctuation data in the set of fluctuation data of the internal cavity position under the engine state. i The angular phase of the i-th runout data in the runout data set of the runout measurement point inside the stator casing is t. i Let r be the amplitude of the i-th runout data in the runout data set of the runout measurement point inside the stator casing, r be the radius of the inner cavity, and g be the axial distance from the inner cavity to the outside of the front stop of the stator casing.

[0019] Another aspect of the present invention provides a storage medium for storing non-transitory computer instructions, which, when executed, perform the steps of the method for measuring the runout of the compressor stator casing cavity as described in any of the above embodiments.

[0020] Another aspect of the present invention provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the method for measuring the runout of the compressor stator casing cavity as described in any of the above embodiments.

[0021] The runout measurement method for the honeycomb coating of the compressor stator casing of the present invention converts the eccentricity data of the stator casing's locating edge and runout data into the locating edge data of the stator casing assembled to the engine, thereby obtaining the runout data of the stator casing in the overall engine state. This runout measurement method is suitable for runout measurement of deep cavity structures, eliminates the need for multiple adjustments to the measuring device, simplifies the measurement operation, and improves the accuracy and efficiency of engine runout measurement. Attached Figure Description

[0022] The above and other features, properties and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic flowchart of an embodiment of the method for measuring the runout of the honeycomb coating of the compressor stator casing according to the present invention;

[0024] Figure 2 This is a schematic diagram of runout measurement for a single component of the stator casing;

[0025] Figure 3 This is a schematic diagram showing the runout measurement of the stator casing after it is assembled into the engine and in engine mode. Detailed Implementation

[0026] Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided to explain the invention and not to limit it. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made to the invention without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used with another embodiment to produce yet another embodiment. Therefore, the invention is intended to cover these modifications and variations that fall within the scope of the appended claims and their equivalents.

[0027] Figure 1 A method for measuring the runout of the honeycomb coating of the compressor stator casing according to the present invention is shown. The runout measurement method of the present invention includes steps S100 to S300:

[0028] In step S100, the stator casing stop eccentricity data and the set of runout data from the runout measurement points inside the stator casing are acquired. Step S100 is to perform runout measurement on the stator casing.

[0029] In step S200, the stator casing is assembled to the engine, and the runout of the stator casing in the engine state after assembly is measured to obtain the stop eccentricity data in the engine state.

[0030] In step S300, the stator casing stop eccentricity data and the set of runout data of the stator casing inner cavity runout measurement points are combined to convert the stop eccentricity data in the engine state to obtain the set of runout data of the inner cavity position in the engine state.

[0031] The internal cavity runout measuring point is located within the internal cavity structure of the stator casing. After the stator casing is assembled into the engine, the runout measuring device needs to extend into the deep cavity of the stator casing, resulting in low measurement efficiency and accuracy. In this invention, the internal cavity runout measuring point can be located at the honeycomb structure of the stator casing (e.g., Figure 2 The location indicated by T in the middle can also be the coating of the stator casing; this invention does not limit this.

[0032] The runout measurement method for the honeycomb coating of the compressor stator casing of the present invention converts the eccentricity data of the stator casing's locating edge and runout data into the locating edge data of the stator casing assembled to the engine, thereby obtaining the runout data of the stator casing in the overall engine state. This runout measurement method is suitable for runout measurement of deep cavity structures, eliminates the need for multiple adjustments to the measuring device, simplifies the measurement operation, and improves the accuracy and efficiency of engine runout measurement.

[0033] In one embodiment, step S100 further includes steps S110 to S130:

[0034] In step S110, the external eccentricity angle and external eccentricity of the stator casing front stop are obtained as the stator casing front stop eccentricity data, that is, the eccentricity data of the stator casing front stop relative to the turntable, denoted as (θ1, P1).

[0035] Among them, the front stop of the stator casing is Figure 2 In the diagram, P1 indicates the position, θ1 is the external eccentricity angle of the front stop of the stator casing, and P1 is the external eccentricity of the front stop of the stator casing.

[0036] In step S120, the external eccentricity angle and external eccentricity of the stator casing rear stop are obtained as the stator casing rear stop eccentricity data, that is, the eccentricity data of the stator casing rear stop relative to the turntable, denoted as (θ2, P2).

[0037] Among them, the rear stop of the stator casing is Figure 2 In the diagram, P2 indicates the position, θ2 is the external eccentricity angle of the stator casing rear stop, and P2 is the external eccentricity of the stator casing rear stop.

[0038] In step S130, the phase angle of the runout measurement point inside the stator casing and the runout amplitude corresponding to that phase are obtained, and a runout data set of the runout measurement point inside the stator casing is constructed, denoted as:

[0039] {(α1,t1),(α2,t2)…(α i ,t i )}

[0040] Where, α i Let t be the angular phase of the i-th runout data in the runout data set of the stator casing cavity runout measurement point. i The amplitude of the i-th runout data in the runout data set of the runout measurement points inside the stator casing.

[0041] Steps S110 to S130 above all involve measuring the runout of a single stator casing. The single stator casing state is as follows: Figure 2 As shown.

[0042] In one embodiment, step S200 further includes steps S210 to S240:

[0043] In step S210, the stator housing is assembled to the engine. The engine state after the stator housing is assembled to the engine is as follows: Figure 3 As shown. In Figure 3 In the middle, Tf is Figure 2 The internal cavity vibration measurement point indicated by T.

[0044] In step S220, the runout of the stator casing in the assembled engine state is measured.

[0045] In step S230, the external eccentricity angle and external eccentricity of the front stop are obtained under engine conditions, and are used as the external eccentricity data of the front stop under engine conditions, that is, the external eccentricity data of the stator casing relative to the turntable under engine conditions, denoted as (θ3, P3).

[0046] Among them, the stator casing front stop in engine mode is Figure 3 The position indicated by P3 in the figure, θ3 is the external eccentricity angle of the stator casing front stop in the engine state, and P3 is the external eccentricity of the stator casing front stop in the engine state.

[0047] In step S240, the rear stop external eccentricity angle and the rear stop external eccentricity amount are obtained in the engine state, as the rear stop eccentricity data in the engine state, that is, the eccentricity data of the stator casing rear stop relative to the turntable in the engine state, denoted as (θ4, P4).

[0048] Among them, the stator casing front stop in engine mode is Figure 3 The position indicated by P4 in the figure, θ4 is the external eccentricity angle of the stator casing rear stop in the engine state, and P4 is the external eccentricity of the stator casing rear stop in the engine state.

[0049] In one embodiment, step S300 further includes steps S310 to S330:

[0050] In step S310, the first stator axis is constructed based on the stator casing front stop eccentricity data and the stator casing rear stop eccentricity data. Figure 2 In the diagram, the axis of the first stator is AA.

[0051] The first stator axis satisfies:

[0052]

[0053] Where u, v, and w are intermediate parameters, [uvw] is the first stator axis, θ1 is the external eccentricity angle of the front stop of the stator housing, P1 is the external eccentricity of the front stop of the stator housing, θ2 is the external eccentricity angle of the rear stop of the stator housing, P2 is the external eccentricity of the rear stop of the stator housing, and h is the axial distance between the front and rear stops of the stator housing.

[0054] In step S320, the second stator axis is constructed based on the front stop eccentricity data and the rear stop eccentricity data under engine conditions. Figure 3 In the middle, the axis of the second stator is BB.

[0055] The second stator axis satisfies:

[0056]

[0057] Where x, y, and z are intermediate parameters, [xyz] is the second stator axis, θ3 is the front stop external eccentricity angle in engine mode, P3 is the front stop external eccentricity in engine mode, θ4 is the rear stop external eccentricity angle in engine mode, P4 is the rear stop external eccentricity in engine mode, and h is the axial distance between the front and rear stops of the stator casing.

[0058] In step S330, the set of runout data of the runout measurement points in the stator casing is converted according to the first stator axis and the second stator axis to obtain the set of runout data of the internal cavity position under engine conditions.

[0059] Among them, the set of data on the fluctuation of the internal cavity position under engine conditions satisfies:

[0060]

[0061] Among them, tf i Let α be the amplitude of the i-th data point in the set of data points showing the internal cavity position fluctuations under engine conditions. i Let t be the angular phase of the i-th runout data in the runout data set of the stator casing cavity runout measurement point. i Let be the amplitude of the i-th runout data in the runout data set of the runout measurement point inside the stator casing, r be the radius of the inner cavity location, and g be the axial distance from the inner cavity location to the outside of the front stop of the stator casing.

[0062] The present invention provides a method for measuring the runout of the compressor stator casing cavity. Before assembling the front and rear stator casings of the compressor into the engine, runout of the honeycomb coating on the components is measured. During the measurement process, the runout outside the front and rear stops of the stator casing is simultaneously measured to construct the stator axis. After the front and rear stators are assembled into the engine, a turntable is used to measure the runout outside the stator casing stops again, and the axis is reconstructed. Based on the changes in the two axes, the honeycomb runout data is converted to complete the axis measurement. This invention proposes a runout measurement method for deep cavity structures, optimizes the runout measurement of engine honeycomb and coatings, reduces engine research costs, and improves assembly efficiency.

[0063] The storage medium of the present invention is used to store non-transitory computer instructions, which, when executed, perform the steps of the method for measuring the runout of the compressor stator casing cavity as described in any of the above embodiments.

[0064] The computer program product of the present invention includes a computer program that, when executed by a processor, implements the steps of the method for measuring the runout of the compressor stator casing cavity as described in any of the above embodiments.

[0065] Embodiments of the subject matter described in this specification can be implemented as one or more computer programs, i.e., one or more modules of computer program instructions encoded on a tangible, non-transitory program carrier for execution by a data processing apparatus or for controlling the operation of a data processing apparatus. Alternatively or additionally, the program instructions may be encoded on artificially generated propagation signals, such as machine-generated electrical, optical, or electromagnetic signals, which are generated to encode information and transmit it to a suitable receiving device for execution by the data processing apparatus.

[0066] Computer storage media can be machine-readable storage devices, machine-readable storage substrates, random or serial access memory devices, or combinations thereof.

[0067] Suitable computers for executing computer programs include, for example, general-purpose and / or special-purpose microprocessors, or any other type of central processing unit. Typically, the central processing unit receives instructions and data from read-only memory and / or random access memory. The basic components of a computer include a central processing unit for implementing or executing instructions and one or more memory devices for storing instructions and data. Typically, a computer will also include one or more mass storage devices for storing data, such as disks, magneto-optical disks, or optical disks, or the computer will be operatively coupled to such mass storage devices to receive data from or transfer data to them, or both. However, a computer is not required to have such devices. Furthermore, a computer can be embedded in another device, such as a mobile phone, a personal digital assistant (PDA), a mobile audio or video player, a game console, a global positioning system (GPS) receiver, or a portable storage device such as a universal serial bus (USB) flash drive, to name a few.

[0068] Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media, and memory devices, such as semiconductor memory devices (e.g., EPROM, EEPROM, and flash memory devices), magnetic disks (e.g., internal hard disks or removable disks), magneto-optical disks, and CD-ROM and DVD-ROM disks. Processors and memory may be supplemented by or incorporated into dedicated logic circuitry.

[0069] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any variations and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the invention, fall within the protection scope defined by the claims of the present invention.

Claims

1. A method for measuring the runout of the inner cavity of a compressor stator casing, characterized in that, include: Acquire the stator casing stop eccentricity data and the set of runout data from the stator casing internal cavity runout measurement points; The stator casing is assembled into the engine, and the runout of the stator casing in the engine state after assembly is measured to obtain the stop eccentricity data in the engine state. By combining the stator casing stop eccentricity data and the set of runout data of the stator casing inner cavity runout measurement points, the stop eccentricity data in the engine state is converted to obtain the set of runout data of the inner cavity position in the engine state.

2. The runout measurement method as described in claim 1, characterized in that, The acquisition of stator casing stop eccentricity data and stator casing internal cavity runout measurement point runout data set includes: Obtain the stator casing front stop outer eccentricity angle and front stop outer eccentricity amount as stator casing front stop eccentricity data; Obtain the stator casing rear stop external eccentricity angle and the amount of rear stop external eccentricity as stator casing rear stop eccentricity data.

3. The runout measurement method as described in claim 2, characterized in that, The acquisition of stator casing stop eccentricity data and stator casing inner cavity position runout measurement point runout data set also includes: Obtain the angular phase of the runout measurement point inside the stator casing and the runout amplitude corresponding to that angular phase, and construct a runout data set of the runout measurement point inside the stator casing.

4. The runout measurement method as described in claim 3, characterized in that, The process of assembling the stator casing to the engine and measuring the runout of the stator casing in the engine state after assembly to obtain stop eccentricity data in the engine state includes: The stator casing is assembled into the engine; Runout measurement of the stator casing in the assembled engine state; Obtain the front stop outer eccentricity angle and the front stop outer eccentricity amount under engine conditions, as the front stop eccentricity data under engine conditions; Obtain the rear stop external eccentricity angle and the amount of rear stop external eccentricity under engine conditions, as the rear stop eccentricity data under engine conditions.

5. The runout measurement method as described in claim 4, characterized in that, The method combines the stator casing stop eccentricity data and the runout data set of the stator casing inner cavity runout measurement points to convert the stop eccentricity data in the engine state, obtaining a runout data set of the inner cavity position in the engine state, including: Based on the stator casing front stop eccentricity data and the stator casing rear stop eccentricity data, the first stator axis is constructed; Based on the front stop eccentricity data and the rear stop eccentricity data under the engine state, a second stator axis is constructed. Based on the first stator axis and the second stator axis, the set of runout data of the runout measurement points in the stator casing is transformed to obtain the set of runout data of the internal cavity position under engine conditions.

6. The runout measurement method as described in claim 5, characterized in that, The first stator axis satisfies: Where u, v, and w are intermediate parameters, [uvw] is the first stator axis, θ1 is the external eccentricity angle of the front stop of the stator housing, P1 is the external eccentricity of the front stop of the stator housing, θ2 is the external eccentricity angle of the rear stop of the stator housing, P2 is the external eccentricity of the rear stop of the stator housing, and h is the axial distance between the front and rear stops of the stator housing.

7. The runout measurement method as described in claim 6, characterized in that, The second stator axis satisfies: Where x, y, and z are intermediate parameters, [xyz] is the second stator axis, θ3 is the front stop external eccentricity angle in the engine state, P3 is the front stop external eccentricity in the engine state, θ4 is the rear stop external eccentricity angle in the engine state, P4 is the rear stop external eccentricity in the engine state, and h is the axial distance between the front and rear stops of the stator casing.

8. The runout measurement method as described in claim 7, characterized in that, The set of data on the fluctuation of the internal cavity position under engine conditions satisfies: Among them, tf i α is the amplitude of the i-th fluctuation data in the set of fluctuation data of the internal cavity position under the engine state. i The angular phase of the i-th runout data in the runout data set of the runout measurement point inside the stator casing is t. i Let r be the amplitude of the i-th runout data in the runout data set of the runout measurement point inside the stator casing, r be the radius of the inner cavity, and g be the axial distance from the inner cavity to the outside of the front stop of the stator casing.

9. A storage medium, characterized in that, Used to store non-transitory computer instructions, which, when executed, perform the steps of the method for measuring the runout of the compressor stator casing cavity as described in any one of claims 1-8.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the method for measuring the runout of the compressor stator casing cavity as described in any one of claims 1-8.

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