CN113032906A - Method, device, equipment and medium for measuring deformation degree of undercarriage - Google Patents

Method, device, equipment and medium for measuring deformation degree of undercarriage Download PDF

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Publication number
CN113032906A
CN113032906A CN202110307727.4A CN202110307727A CN113032906A CN 113032906 A CN113032906 A CN 113032906A CN 202110307727 A CN202110307727 A CN 202110307727A CN 113032906 A CN113032906 A CN 113032906A
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China
Prior art keywords
deformation
amount
undercarriage
positions
degree
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Chinese (zh)
Inventor
王贤宇
印明威
海日汗
包长春
徐震翰
李京阳
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Beijing Qinghang Zijin Equipment Technology Co ltd
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Beijing Qinghang Zijin Equipment Technology Co ltd
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Priority to CN202110307727.4A priority Critical patent/CN113032906A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/15—Vehicle, aircraft or watercraft design
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
    • B64F5/60—Testing or inspecting aircraft components or systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation

Abstract

The application discloses a method for measuring the deformation degree of an undercarriage, which combines the deformation quantity of a position where a sensor is not installed to determine the deformation degree of the undercarriage. Specifically, the method obtains a plurality of deformation quantities of a first position, the first position being a position of a mounted sensor on the undercarriage, determines a deformation quantity of at least one second position according to the deformation quantities of the plurality of first positions and a distance between the plurality of first positions and the at least one second position, the second position being a position of the undercarriage without a mounted sensor, and then determines a deformation degree of the undercarriage by combining the deformation quantity of the at least one second position and the deformation quantities of the plurality of first positions. According to the method, not only is the deformation quantity of the position where the sensor is installed on the undercarriage taken into account, but also the deformation quantity of the position where the sensor is not installed on the undercarriage is taken into account, so that the accuracy of the deformation degree of the undercarriage is high, and the misjudgment of the deformation degree of the undercarriage is reduced.

Description

Method, device, equipment and medium for measuring deformation degree of undercarriage
Technical Field
The present disclosure relates to the field of aircraft technologies, and in particular, to a method, an apparatus, a device, and a computer-readable storage medium for measuring a deformation degree of an undercarriage.
Background
Landing gear refers to the component that contacts the ground when the aircraft is taking off or landing. For example, the aircraft may be a helicopter, a drone, or the like. In the flight process of the aircraft, the landing gear can deform to a certain extent due to impact generated by factors such as airflow, and after the landing gear deforms, the performance of the landing gear can be influenced to a certain extent, so that the safety of the aircraft in the processes of takeoff, landing, ground movement, water surface sliding and the like is reduced. For example, after the landing gear is deformed greatly, the stability of the aircraft during landing can be greatly reduced, and even safety accidents such as damage to the landing gear can be caused.
The industry provides a way of installing sensors on the landing gear to measure the deformation of the landing gear at a specified position, so as to achieve the purpose of timely maintaining and replacing the landing gear. For example, a sensor is arranged at a local position of the landing gear, and the data of the local position sensor is acquired to analyze and determine the overall deformation degree of the landing gear.
However, in this method, only the deformation amount at the position where the sensor is mounted on the landing gear is detected, and the entire deformation degree of the landing gear cannot be fully expressed, which may cause erroneous judgment of the entire deformation degree of the landing gear.
Based on this, there is a need for a method for measuring the deformation degree of the landing gear.
Disclosure of Invention
In order to solve the technical problem, the application provides a method for measuring the deformation degree of the undercarriage, the method combines the deformation quantity of at least one second position and the deformation quantities of a plurality of first positions to determine the deformation degree of the undercarriage, and the accuracy of judging the deformation degree of the undercarriage is improved.
The embodiment of the application discloses the following technical scheme:
in a first aspect, the present application provides a method for measuring a deformation degree of an undercarriage, including:
acquiring deformation quantities of a plurality of first positions, wherein the first positions are positions of installed sensors on the undercarriage;
determining the amount of deformation at the at least one second location from the amount of deformation at the plurality of first locations and the distance between the plurality of first locations and the at least one second location; the second position is a position on the landing gear where no sensor is mounted;
determining a degree of deformation of the landing gear based on the amount of deformation at the at least one second position and the amount of deformation at the plurality of first positions.
Optionally, the determining the extent of deformation of the landing gear from the amount of deformation at the at least one second position and the amounts of deformation at the plurality of first positions comprises:
obtaining the weight of the at least one second position and the weights of the plurality of first positions;
determining a first degree of deformation from the amount of deformation at the at least one second location and the weight of the at least one location; determining a second degree of deformation from the amount of deformation at the plurality of first locations and the weights for the plurality of first locations;
and determining the deformation degree of the undercarriage according to the first deformation degree and the second deformation degree.
Optionally, wherein the weight of the at least one second location is positively correlated with the distance of the second location from the landing gear central region;
the weights of the plurality of first locations are positively correlated with the distance of the second location from the landing gear center region.
Optionally, the method further includes:
and when the deformation degree of the undercarriage is larger than a first preset threshold value, early warning is carried out.
Optionally, the method further includes:
and when the deformation degree of the undercarriage is larger than a second preset threshold value, generating a takeoff forbidding instruction.
Optionally, the deformation amount at the second position is obtained by the following formula:
Figure BDA0002988543080000021
wherein, muvIs the amount of deformation, x, at said second positioniIs the amount of deformation at the ith of the plurality of first positions, diAnd the distance between the ith first position and the second position in the plurality of first positions is defined, m is the number of the first positions, and N is a power parameter.
Optionally, a distance between the second position and the first position is lower than a preset distance threshold.
In a second aspect, the present application provides a device for measuring the deformation of an undercarriage, comprising:
the acquisition module is used for acquiring deformation quantities of a plurality of first positions, wherein the first positions are positions of the sensors mounted on the undercarriage;
a prediction module for determining the amount of deformation at the at least one second location from the amount of deformation at the plurality of first locations and the distance between the plurality of first locations and the at least one second location; the second position is a position on the landing gear where no sensor is mounted;
a calculation module for determining a degree of deformation of the landing gear based on the amount of deformation at the at least one second location and the amount of deformation at the plurality of first locations.
Optionally, the obtaining module is further configured to obtain a weight of the at least one second location and weights of the plurality of first locations;
the computing module is specifically configured to obtain a weight of the at least one second location and weights of the plurality of first locations;
determining a first degree of deformation from the amount of deformation at the at least one second location and the weight of the at least one location; determining a second degree of deformation from the amount of deformation at the plurality of first locations and the weights for the plurality of first locations;
and determining the deformation degree of the undercarriage according to the first deformation degree and the second deformation degree.
Optionally, the weight of the at least one second position is positively correlated with the distance of the second position from the central region of the landing gear; the weights of the plurality of first locations are positively correlated with the distance of the second location from the landing gear center region.
Optionally, the apparatus further comprises: an early warning module;
and the early warning module is used for early warning when the deformation degree of the undercarriage is greater than a first preset threshold value.
Optionally, the apparatus further comprises: an instruction generation module;
the instruction generation module is used for generating a takeoff forbidding instruction when the deformation degree of the undercarriage is larger than a second preset threshold value.
The prediction module is specifically configured to obtain the deformation amount at the second position by the following formula:
Figure BDA0002988543080000041
wherein, muvIs the amount of deformation, x, at said second positioniIs the amount of deformation at the ith of the plurality of first positions, diAnd the distance between the ith first position and the second position in the plurality of first positions is defined, m is the number of the first positions, and N is a power parameter.
Optionally, a distance between the second position and the first position is lower than a preset distance threshold.
In a third aspect, the present application provides a computing device comprising a memory and a processor;
the memory is to store instructions;
the processor is configured to execute the instructions to cause the apparatus to perform the method of any of the first aspect above.
In a fourth aspect, the present application provides a computer-readable storage medium comprising instructions for instructing a computing device in the third aspect to perform the method of any of the first aspect.
According to the technical scheme, the method has the following advantages:
the method for measuring the deformation degree of the undercarriage combines the deformation quantity of the position where the sensor is not installed to determine the deformation degree of the undercarriage. Specifically, the method obtains a plurality of deformation quantities of a first position, the first position being a position of a mounted sensor on the undercarriage, determines a deformation quantity of at least one second position according to the deformation quantities of the plurality of first positions and a distance between the plurality of first positions and the at least one second position, the second position being a position of the undercarriage without a mounted sensor, and then determines a deformation degree of the undercarriage by combining the deformation quantity of the at least one second position and the deformation quantities of the plurality of first positions. According to the method, not only is the deformation quantity of the position where the sensor is installed on the undercarriage taken into account, but also the deformation quantity of the position where the sensor is not installed on the undercarriage is taken into account, so that the accuracy of the deformation degree of the undercarriage is high, and the misjudgment of the deformation degree of the undercarriage is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method for measuring deformation of an undercarriage according to an embodiment of the present disclosure;
FIG. 2 is a schematic illustration of a landing gear provided in an embodiment of the present application;
fig. 3 is a schematic diagram of a device for measuring deformation degree of a landing gear according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
To facilitate understanding by those skilled in the art, the technical terms referred to in the present application will be described below.
Landing gear refers to the component of an aircraft that contacts the ground when taking off or landing. For example, the aircraft may be a helicopter, a drone, or the like. The aircraft can move on the ground, even glide on the water surface, etc. through the landing gear. In the flight process of the aircraft, the landing gear can deform to a certain extent due to impact generated by factors such as airflow, and after the landing gear deforms, the performance of the landing gear can be influenced to a certain extent, so that the safety of the aircraft in the processes of takeoff, landing, ground movement, water surface sliding and the like is reduced. For example, after the landing gear is deformed greatly, the stability of the aircraft during landing can be greatly reduced, and even safety accidents such as damage to the landing gear can be caused.
The industry has provided a way to measure the amount of deformation at a given location of the landing gear by mounting sensors on the landing gear, but at some critical locations (such as where contact with the ground) it is inconvenient or difficult to mount and thus impossible to detect the amount of deformation at that location. It can be seen that only the local deformation degree of the undercarriage can be obtained through the deformation quantity at the position of the mounting sensor, and the local deformation cannot accurately represent the overall deformation degree of the undercarriage.
In view of the above, the present application provides a method for measuring the deformation degree of a landing gear, which may be performed by an evaluation device. Specifically, the evaluation device acquires a plurality of deformation quantities of first positions, the first positions being positions of the undercarriage on which the sensors are mounted, determines the deformation quantity at least one second position according to the deformation quantities at the plurality of first positions and the distance between the plurality of first positions and the at least one second position, the second position being a position of the undercarriage on which the sensors are not mounted, and then determines the deformation degree of the undercarriage according to the deformation quantity at the at least one second position and the deformation quantities at the plurality of first positions.
According to the method, not only is the deformation quantity of the position where the sensor is installed on the undercarriage taken into account, but also the deformation quantity of the position where the sensor is not installed on the undercarriage is taken into account, so that the accuracy of the deformation degree of the undercarriage is high, and the misjudgment of the deformation degree of the undercarriage is reduced.
The measurement method of the deformation degree of the undercarriage can be applied to measurement of the deformation degree of the undercarriage of various aircrafts, such as helicopters, unmanned planes and the like.
In order to make the technical solution of the present application clearer and easier to understand, the following describes the technical solution of the present application by taking the angle of the evaluation device and taking the aircraft as the unmanned aerial vehicle as examples.
As shown in fig. 1, this figure shows a flow chart of a method for measuring the deformation degree of a landing gear, comprising the following steps:
s101: the evaluation device obtains deformation quantities at a plurality of first locations.
The first position is the position on the landing gear where the sensor is mounted. The amount of deformation indicates the change in the target object from the original state. For example, a straight iron stick may be deformed and bent by an external force and cannot automatically return to the original straight state, and the bent iron stick is deformed relative to the original straight iron stick, and the size of the deformation is the deformation amount.
In some embodiments, the sensor detects the amount of deformation at the first location and sends it directly to the evaluation device. In other embodiments, the evaluation device may send a request to the sensor every preset time interval to obtain the amount of deformation collected by the sensor. The evaluation device may be in limited connection with the sensor or in wireless connection, which is not limited in the present application and can be selected by those skilled in the art according to actual needs.
S102: the evaluation device determines the amount of deformation at the at least one second location from the amount of deformation at the plurality of first locations and the distance between the plurality of first locations and the at least one second location.
The second position refers to a position on the landing gear where no sensor is mounted. For ease of understanding, the following description will be given by taking the example in which the evaluation device determines the amount of deformation of a second location.
In some embodiments, the undercarriage comprises 10 first positions, i.e. 10 sensors are mounted on the undercarriage, and the evaluation device can select the data of some of the 10 sensors
In some implementations, when the evaluation device selects a portion of the sensor data, the evaluation device may select a first location that is a distance from the second location that is less than a preset distance threshold, such that the first location is closer to the second location and the amount of deformation at the first location is more likely to reflect the amount of deformation at the second location. Of course, in other implementations, the evaluation device may also select data of all sensors, which is not limited in this application.
In some embodiments, the evaluation device determines the amount of deformation of a second location by:
Figure BDA0002988543080000071
wherein, muvIs the amount of deformation, x, at the second positioniIs a plurality ofAmount of deformation at the ith of the first positions, diThe distance between the ith first position and the second position in the plurality of first positions is defined, m is the number of the first positions, and N is a power parameter.
When the amount of deformation at the partial first position is adopted, m may be 6. N may be 2 in some embodiments.
In the above, the evaluation device determines the deformation amount of one second position, and in the above manner, the evaluation device may also determine the deformation amounts of a plurality of second positions so as to analyze the deformation degree of the landing gear.
S103: the evaluation device determines the extent of deformation of the landing gear from the amount of deformation at the at least one second position and the amount of deformation at the plurality of first positions.
The evaluation device determines the extent of deformation of the landing gear from the amount of deformation at the at least one second position and the amount of deformation at the plurality of first positions. Therefore, the deformation quantity of the second position is combined on the basis of the deformation quantity of the first position of the evaluation equipment, the deformation degree of the undercarriage is judged, and the accuracy of measuring the deformation degree is improved. Further, according to the accurate deformation degree, the worker can maintain or replace the aircraft in time, and the risk of aircraft crash caused by damage of the undercarriage is avoided.
In some embodiments, the evaluation device may evaluate the degree of deformation of the landing gear based on the weight of the first location and the weight of the second location.
Specifically, the evaluation device obtains the weight of the second location, and obtains the weight of the first location. Wherein the first position is a position where a sensor is installed and the second position is a position where a sensor is not installed, i.e. the amount of deformation of the first position is measured by the sensor and the amount of deformation of the second position is predicted by the evaluation device, the weight of the first position may be greater than the weight of the second position. Further, the weight of each of the plurality of first locations may also differ. As shown in fig. 2, the landing gear includes three regions: an aircraft-connected region 21, a central region 22 and a ground-connected region 23.
The area 21 connected to the aircraft and the area 23 connected to the ground are subjected to greater impacts during take-off and landing of the aircraft, and therefore both areas have a greater impact on the overall performance of the landing gear.
I.e. the weight of the first plurality of positions is positively correlated with the distance of the first position from the central region of the landing gear. The greater the distance of the first location from the central region 22, the greater the weight of the first location.
In some implementations, the first position is located in (or near) the central region 22 of the landing gear, and then the first position is weighted lower, the second first position is located in (or near) the region 21 where the landing gear is attached to the aircraft, and then the region 21 in the second first position is weighted higher, and the third first position is located in (or near) the region 23 where the landing gear is attached to the ground, and then the third first position is weighted higher. Likewise, a weight of at least one second location may also be determined.
After the evaluation device determines the weight of the first position and the weight of the second position, a first deformation degree is determined according to the deformation quantity of the at least one second position and the weight of the at least one position, and a second deformation degree is determined according to the deformation quantities of the plurality of first positions and the weights of the plurality of first positions. Then, the evaluation device determines the deformation degree of the undercarriage according to the first deformation degree and the second deformation degree.
In some implementations, the evaluation device may determine the degree of deformation of the landing gear by the following formula:
Figure BDA0002988543080000081
wherein H is the deformation degree of the landing gear,
Figure BDA0002988543080000082
is the weight, x, of the ith first position in the plurality of first positionsiThe deformation quantity of the ith first position in the plurality of first positions is shown, and m is the number of the first positions; thetacIs the weight, mu, of the c-th one of the at least one second locationcIs the deformation of the c-th second position of the at least one second position, and e is the number of second positions.
In some embodiments, after the evaluation device obtains the deformation degree of the undercarriage, the evaluation device may further compare the deformation degree with a first preset threshold, where the first preset threshold may be a threshold corresponding to the deformation degree of the undercarriage when the undercarriage needs to be maintained, and when the deformation degree of the undercarriage is greater than the first preset threshold, the evaluation device may perform early warning to prompt a worker to perform processing such as maintenance on the undercarriage. The assessment device can give an early warning in one or more of voice, text, buzzer, light and the like.
In other embodiments, the evaluation device may further compare the deformation degree with a second preset threshold, where the second preset threshold may be a threshold corresponding to the deformation degree when the undercarriage needs to be replaced, and it should be noted that the undercarriage needs to be replaced refers to a situation where the performance problem of the undercarriage cannot be solved by a maintenance method. Therefore, when the deformation degree of the undercarriage is larger than the second preset threshold value, the evaluation equipment generates a takeoff forbidding instruction, so that takeoff of the undercarriage is forbidden, and safety of the aircraft is guaranteed. When the replacement of the landing gear is completed or the performance of the landing gear is improved, the evaluation device may also generate a takeoff-permitting instruction so that the aircraft can continue to fly.
Based on the above description, the method for measuring the deformation degree of the undercarriage provided by the application has the following beneficial effects:
the method combines the amount of deformation at locations where no sensors are installed to determine the extent of deformation of the landing gear. Specifically, the method obtains a plurality of deformation quantities of a first position, the first position being a position of a mounted sensor on the undercarriage, determines a deformation quantity of at least one second position according to the deformation quantities of the plurality of first positions and a distance between the plurality of first positions and the at least one second position, the second position being a position of the undercarriage without a mounted sensor, and then determines a deformation degree of the undercarriage by combining the deformation quantity of the at least one second position and the deformation quantities of the plurality of first positions. According to the method, not only is the deformation quantity of the position where the sensor is installed on the undercarriage taken into account, but also the deformation quantity of the position where the sensor is not installed on the undercarriage is taken into account, so that the accuracy of the deformation degree of the undercarriage is high, and the misjudgment of the deformation degree of the undercarriage is reduced.
The embodiment of the present application further provides a device for measuring the deformation degree of an undercarriage, as shown in fig. 3, the device includes:
an acquisition module 301, configured to acquire deformation quantities of a plurality of first positions, where sensors are installed on the landing gear;
a prediction module 302 for determining the amount of deformation at the at least one second location based on the amount of deformation at the plurality of first locations and the distance between the plurality of first locations and the at least one second location; the second position is a position on the landing gear where no sensor is mounted;
a calculation module 303, configured to determine a degree of deformation of the landing gear according to the amount of deformation at the at least one second position and the amount of deformation at the plurality of first positions.
Optionally, the obtaining module is further configured to obtain a weight of the at least one second location and weights of the plurality of first locations;
the computing module is specifically configured to obtain a weight of the at least one second location and weights of the plurality of first locations;
determining a first degree of deformation from the amount of deformation at the at least one second location and the weight of the at least one location; determining a second degree of deformation from the amount of deformation at the plurality of first locations and the weights for the plurality of first locations;
and determining the deformation degree of the undercarriage according to the first deformation degree and the second deformation degree.
Optionally, the weight of the at least one second position is positively correlated with the distance of the second position from the central region of the landing gear; the weights of the plurality of first locations are positively correlated with the distance of the second location from the landing gear center region.
Optionally, the apparatus further comprises: an early warning module;
and the early warning module is used for early warning when the deformation degree of the undercarriage is greater than a first preset threshold value.
Optionally, the apparatus further comprises: an instruction generation module;
the instruction generation module is used for generating a takeoff forbidding instruction when the deformation degree of the undercarriage is larger than a second preset threshold value.
The prediction module is specifically configured to obtain the deformation amount at the second position by the following formula:
Figure BDA0002988543080000101
wherein, muvIs the amount of deformation, x, at said second positioniIs the amount of deformation at the ith of the plurality of first positions, diAnd the distance between the ith first position and the second position in the plurality of first positions is defined, m is the number of the first positions, and N is a power parameter.
Optionally, a distance between the second position and the first position is lower than a preset distance threshold.
A computing device is provided that includes a memory and a processor;
the memory is to store instructions;
the processor is configured to execute the instructions to cause the apparatus to perform the method of any of the above method embodiments.
The present application provides a computer-readable storage medium comprising instructions for instructing the above-mentioned computing device to perform the method of any of the above-mentioned method embodiments.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, it is relatively simple to describe, and reference may be made to some descriptions of the method embodiment for relevant points. The above-described apparatus embodiments are merely illustrative, and the units and modules described as separate components may or may not be physically separate. In addition, some or all of the units and modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application in any way. Although the present application has been described with reference to the preferred embodiments, it is not intended to limit the present application. Those skilled in the art can now make numerous possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the claimed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the protection scope of the technical solution of the present application without departing from the content of the technical solution of the present application.

Claims (10)

1. A method for measuring the deformation degree of an undercarriage is characterized by comprising the following steps:
acquiring deformation quantities at a plurality of first positions, the first positions being positions of mounted sensors on the undercarriage;
determining the amount of deformation at the at least one second location from the amount of deformation at the plurality of first locations and the distance between the plurality of first locations and the at least one second location; the second position is a position on the landing gear where no sensor is mounted;
determining a degree of deformation of the landing gear based on the amount of deformation at the at least one second position and the amount of deformation at the plurality of first positions.
2. The method of claim 1, wherein determining the extent of deformation of the landing gear based on the amount of deformation at the at least one second location and the amount of deformation at the plurality of first locations comprises:
obtaining the weight of the at least one second position and the weights of the plurality of first positions;
determining a first degree of deformation from the amount of deformation at the at least one second location and the weight of the at least one location; determining a second degree of deformation from the amount of deformation at the plurality of first locations and the weights for the plurality of first locations;
and determining the deformation degree of the undercarriage according to the first deformation degree and the second deformation degree.
3. The method of claim 2, wherein the weights for the plurality of first locations are positively correlated with the distance of the first locations from the landing gear center region.
4. The method according to any one of claims 1 to 3, further comprising:
and when the deformation degree of the undercarriage is larger than a first preset threshold value, early warning is carried out.
5. The method according to any one of claims 1 to 3, further comprising:
when the landing gear 7 is in use, a takeoff forbidding instruction is generated.
6. The method of claim 1, wherein the amount of deformation at the second location is obtained by the formula:
Figure FDA0002988543070000021
wherein, muvIs the amount of deformation, x, at said second positioniIs the amount of deformation at the ith of the plurality of first positions, diAnd the distance between the ith first position and the second position in the plurality of first positions is defined, m is the number of the first positions, and N is a power parameter.
7. The method of claim 1, wherein a distance between the second location and the first location is below a preset distance threshold.
8. A device for measuring the deformation of an undercarriage, comprising:
the acquisition module is used for acquiring deformation quantities of a plurality of first positions, wherein the first positions are positions of the sensors mounted on the undercarriage;
a prediction module for determining the amount of deformation at the at least one second location from the amount of deformation at the plurality of first locations and the distance between the plurality of first locations and the at least one second location; the second position is a position on the landing gear where no sensor is mounted;
a calculation module for determining a degree of deformation of the landing gear based on the amount of deformation at the at least one second location and the amount of deformation at the plurality of first locations.
9. An apparatus comprising a memory and a processor;
the memory is to store instructions;
the processor is configured to execute the instructions to cause the apparatus to perform the method of any of the preceding claims 1 to 7.
10. A computer-readable storage medium comprising instructions for instructing a device to perform the method of any of claims 1 to 7.
CN202110307727.4A 2021-03-23 2021-03-23 Method, device, equipment and medium for measuring deformation degree of undercarriage Pending CN113032906A (en)

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