Testing device and method for evaluating impact resistance and wear resistance of airfield pavement marking

By using a stationary test wheel and the reciprocating linear motion of a moving platform in the testing device to simulate the rolling of aircraft tires, the problem of difficult-to-control test conditions in the prior art is solved, and repeatable and accurate testing of the impact resistance and wear resistance of airport pavement markings is achieved.

CN120908013APending Publication Date: 2025-11-07CHANGAN UNIV +1
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Patent Information

Application Number
CN202510911177.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

Existing technologies simulate the impact of aircraft tires on pavement markings by having wheels roll on the markings. However, this method is difficult to control precisely, resulting in a lack of repeatability and reliability in the tests.

Method used

The test wheel remains stationary, while the driving mechanism drives the mobile platform to reciprocate linearly at the bottom of the test wheel, simulating the rolling process of an aircraft tire on the runway. By adjusting the marking material and the speed of the mobile platform, the test conditions can be precisely controlled to ensure the consistency of each test.

Benefits of technology

It achieves repeatability and accuracy of the test, simplifies the testing process, improves testing efficiency and accuracy, and ensures the reliability of the test results.

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Abstract

The invention belongs to the technical field of pavement performance testing, and relates to a testing device and method for evaluating the impact resistance and wear resistance of an airfield pavement marking, and the testing device comprises a testing platform, a rut plate test piece, a testing wheel, a driving mechanism and a measuring mechanism; the test platform comprises a fixed platform and a movable platform; the rut plate test piece is arranged on the mobile platform, and the surface of the rut plate test piece is coated with marked lines; the test wheel is fixedly connected to the fixed platform; the driving mechanism is connected with the moving platform; the measuring mechanism is used for measuring the thickness change of the marked line and the change of the impact force of the test wheel on the marked line; according to the invention, since the test wheel is kept static and the mobile platform moves, accurate control of test conditions can be realized by adjusting the material and texture of the marked line, the moving speed of the mobile platform and the like, and the consistency of the test conditions during each test is ensured, so that the test has repeatability, and the test efficiency is improved. And the test personnel can conveniently verify and optimize the accuracy of the test result.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pavement performance testing, and in particular to a testing device and method for evaluating the impact and wear resistance of airport pavement markings. BACKGROUND

[0002] With the rapid development of the aviation transportation industry, the number and scale of global airports are expanding, and the safety and efficiency of airport runways, as the core facilities of airports, are directly related to flight safety and the efficiency of airport operation. Airport runway markings, as important visual indicators for guiding the safe landing and taxiing of aircraft, are key factors for ensuring the efficient and safe operation of airports, in terms of clear visibility and long-term functionality.

[0003] The working environment of airport runway markings is extremely special and harsh, as they need to withstand wear from aircraft tires, huge impact loads during landing, dynamic pressure under high-speed rolling, and physical changes such as thermal expansion and contraction. They also need to cope with the effects of environmental factors such as rain erosion and ultraviolet radiation. These external factors together can cause the surface material of the markings to crack and peel, severely affecting their functionality and service life. In particular, under the strong impact of aircraft landing, the comprehensive performance of the marking material and structure becomes the key to determining whether it can maintain clear visibility for a long time.

[0004] There is some research on the wear performance testing method of road markings in the prior art. Referring to patent document CN97121597.9, a device and method for measuring the durability of painted surfaces by accelerated wear are disclosed, which includes a device for wearing the surface, the device including at least one wearing wheel rotatably arranged on a wheel mounting trolley, the wearing wheel being in rolling contact with the surface; a device for rotating the wheel mounting trolley to make the wearing wheel roll in a curved trajectory on the surface. As can be seen, the device simulates the impact of aircraft tires on the markings by arranging a rotatable wearing wheel that rolls in a curved trajectory on the wheel mounting trolley.

[0005] As can be seen, in the existing testing method, the impact of aircraft tires on the markings is simulated by rolling a wheel on the pavement markings, thereby achieving testing of the impact and wear resistance of the pavement markings. However, the rolling of the wheel on the pavement markings to simulate the impact of aircraft tires on the markings makes it difficult to accurately control the test conditions, thereby ensuring that the experimental conditions are consistent each time the test is performed, resulting in a lack of repeatability of the test, making it difficult for the tester to verify the test results, and thus making it difficult to ensure the reliability of the test results. SUMMARY

[0006] In order to solve the technical problem that it is difficult to accurately control the test conditions and the test is not repeatable by simulating the impact of the aircraft tire on the marking line through the rolling of the wheel on the marking line of the pavement in the background art, the application provides a test device for evaluating the impact resistance and wear resistance of the marking line of the airport pavement.

[0007] The test device for evaluating the impact resistance and wear resistance of the marking line of the airport pavement of the application keeps the test wheel stationary, drives the moving platform to make reciprocating linear motion at the bottom of the test wheel through the driving mechanism, and realizes the simulation of the rolling process of the aircraft tire on the runway. In the test process, the test conditions can be accurately controlled by adjusting the material and texture of the marking line, the moving speed of the moving platform, etc., and the consistency of the test conditions can be ensured in each test, so that the test is repeatable and the accuracy of the test results can be verified and optimized by the tester. Meanwhile, the moving platform makes reciprocating linear motion along the fixed platform, so that the impact test can be performed for multiple times through one setting, the test process is greatly simplified, and the test efficiency is improved.

[0008] In order to solve the above technical problems, the application provides the following technical scheme:

[0009] The test device for evaluating the impact resistance and wear resistance of the marking line of the airport pavement comprises a test platform, a rut plate test piece, a test wheel, a driving mechanism and a measuring mechanism. The test platform comprises a fixed platform and a moving platform connected with the fixed platform. The moving platform can slide along the fixed platform, and the height of the two ends of the moving platform is higher than the height of the middle part, for simulating the impact process of the tire on the marking line when the aircraft lands. The rut plate test piece is placed on the moving platform, and the surface of the rut plate test piece is coated with a marking line. The test wheel is fixedly connected to the fixed platform through a connecting shaft. The driving mechanism is connected with the moving platform, for driving the moving platform to make reciprocating linear motion along the length direction of the fixed platform. The measuring mechanism is installed on the rut plate test piece or the moving platform, for measuring the thickness change of the marking line and the change of the impact force of the test wheel on the marking line.

[0010] In a specific implementation, the driving mechanism comprises a reciprocating motion driving piece, a support disc, a rocker and a rocker arm. The reciprocating motion driving piece is connected with the support disc, for driving the support disc to rotate. The rocker is connected with the support disc, and the rocker is eccentrically arranged on the support disc. One end of the rocker arm is movably connected with the rocker, and the other end is fixedly connected with the moving platform.

[0011] In a specific implementation, the measuring mechanism comprises a thickness measuring assembly and a force measuring assembly. The thickness measuring assembly is installed on the moving platform, for measuring the thickness change of the marking line. The force measuring assembly is installed at the bottom of the rut plate test piece, for measuring the change of the impact force of the test wheel on the marking line.

[0012] In one specific embodiment, the thickness measuring component is a laser range finder, and the force measuring component is a strain gauge.

[0013] In one specific embodiment, the data of the change of the thickness of the marking line with time or the number of impacts is measured by the laser emitter, and the decay rate Rh of the thickness of the marking line is calculated, and the calculation formula of Rh is:

[0014]

[0015] wherein H0 represents the initial thickness of the marking line, in cm; H(t) represents the thickness after each impact, in cm; t represents the impact time, in s; and Rh represents the decay rate of the thickness of the marking line, in m / s.

[0016] In one specific embodiment, the wear resistance of the marking line under the cumulative impact force is reflected by the comprehensive evaluation index P, and the calculation formula of P is:

[0017]

[0018] wherein F(t) represents the cumulative impact energy parameter quantified by the force meter in the change of the force with time or the number of impacts, in N·s; P represents the wear resistance of the marking line under the cumulative impact force, in kg·m / s; and Rh represents the decay rate of the thickness of the marking line, in m / s. -1

[0019] In one specific embodiment, the measuring mechanism further comprises a central computer; the central computer is electrically connected with the thickness measuring component and the force measuring component, and is used for recording and storing the data measured by the laser emitter and the strain gauge.

[0020] In one specific embodiment, a limiting groove is formed on the moving platform; the limiting groove is matched with the size of the rut plate test piece, and is used for fixing the position of the rut plate test piece.

[0021] In one specific embodiment, the test wheel is a rubber pneumatic tire, and the rubber hardness of the rubber pneumatic tire ranges from 66 IRHD to 72 IRHD.

[0022] A test method for evaluating the impact wear resistance of airport pavement marking lines, comprising the following steps:

[0023] S1, installing the test device for evaluating the impact wear resistance of airport pavement marking lines as described above;

[0024] S2, installing a rut plate test piece: placing the rut plate test piece in the limiting groove; ​

[0025] S3, start the reciprocating motion driving member, the reciprocating motion driving member drives the support disc to rotate, the support disc drives the rocker to rotate synchronously, the rocker drives the rocker arm to reciprocate, and the rocker arm drives the moving platform to reciprocate along the fixed platform;

[0026] S4, measure the thickness change of the marking line and the impact force of the test wheel on the marking line: in the process that the moving platform reciprocates along the fixed platform, the measuring mechanism measures the thickness data of the marking line and the impact force data of the test wheel on the marking line in real time;

[0027] S5, data recording and storage: the central computer receives the data output by the measuring mechanism, and records and stores the data;

[0028] S6, calculate the thickness decay rate Rh: according to the recorded data, calculate the thickness decay rate of the marking line based on formula (1),

[0029]

[0030] The smaller the Rh value is, the better the impact resistance and wear resistance of the marking line is;

[0031] S7, calculate the comprehensive evaluation index P: according to the recorded data and the Rh value, calculate the comprehensive evaluation index P based on formula (2),

[0032]

[0033] The smaller the F(t) value is, the more obvious the cumulative impact effect of the marking line is;

[0034] The smaller the P value is, the better the impact resistance and wear resistance of the marking line is.

[0035] In summary, the present application has the following beneficial technical effects:

[0036] 1. The test device for evaluating the impact resistance and wear resistance of the marking line of the airport runway is characterized in that: the test wheel is kept stationary, the moving platform is driven by the driving mechanism to reciprocate linearly at the bottom of the test wheel, and the simulation of the rolling process of the aircraft tire on the runway is realized. In the test process, since the test wheel is kept stationary and the moving platform moves, the test conditions can be accurately controlled by adjusting the material and texture of the marking line, the moving speed of the moving platform and the like, the consistency of the test conditions is ensured during each test, so that the test has repeatability, and the accuracy of the test results can be verified and optimized by the test personnel; at the same time, since the moving platform reciprocates linearly along the fixed platform, a plurality of impact tests can be performed by one setting, the test process is greatly simplified, and the test efficiency is improved.

[0037] 2.The test device for evaluating the impact and wear resistance of airport pavement marking lines according to the present application, through the reciprocating motion driving element driving the support disc to rotate, the support disc driving the rocker to rotate synchronously, the rocker driving the swing arm to swing reciprocatingly, the swing arm driving the moving platform to move linearly along the fixed platform, the reciprocating linear motion of the moving platform can be accurately controlled, so that the energy and frequency of each impact of the test wheel can be quantified, and the test accuracy and repeatability are further improved; the eccentricity of the rocker on the support disc makes the swing arm generate a stable linear motion track during the swinging process, avoids the test error caused by the unstable motion track, and improves the test accuracy and reliability.

[0038] 3.The test device for evaluating the impact and wear resistance of airport pavement marking lines according to the present application, the thickness measuring assembly and the force measuring assembly can measure and record the thickness change of the marking line and the change of the impact force of the test wheel on the marking line in real time, and store the measured data in the central computer, which is convenient for subsequent analysis and evaluation. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is the overall schematic diagram of the test device for evaluating the impact and wear resistance of airport pavement marking lines according to the present application.

[0040] Marked with reference to the drawings: 1, fixed platform; 2, moving platform; 3, rut plate test piece; 4, test wheel; 5, driving mechanism; 51, support disc; 52, rocker; 53, swing arm; 6, measuring mechanism. DETAILED DESCRIPTION

[0041] The technical solutions of the present application will be further explained and described below in combination with the drawings and examples, but the present application is not limited to the following described embodiments.

[0042] In the existing test method, the impact and wear resistance of the pavement marking line is tested by simulating the impact of the aircraft tire on the marking line through the rolling of the wheel on the marking line. However, it is difficult to accurately control the test conditions by simulating the impact of the aircraft tire on the marking line through the rolling of the wheel on the marking line, and thus it is impossible to ensure that the experimental conditions are consistent every time the test is performed, resulting in the test being not repeatable, and the test personnel being difficult to verify the test results, so as to ensure the reliability of the test results.

[0043] The present application aims to provide a kind of test device for evaluating the impact resistance and wear resistance of airport pavement marking, test wheel 4 keeps still, and the reciprocating linear motion of moving platform 2 at the bottom of test wheel 4 is driven by driving mechanism 5, the simulation of the rolling process of aircraft tire on runway is realized.In the process of test, since test wheel 4 keeps still, and moving platform 2 moves, the test conditions can be accurately controlled by adjusting the material and texture of marking line, the moving speed of moving platform 2, etc., to ensure the consistency of test conditions each time, so that the test has repeatability, and the accuracy of test result can be verified and optimized by test personnel.

[0044] Embodiment 1:

[0045] Reference Figure 1 A kind of test device for evaluating the impact resistance and wear resistance of airport pavement marking, including: test platform, rut plate test piece 3, test wheel 4, driving mechanism 5 and measuring mechanism 6.Test platform includes fixed platform 1 and the moving platform 2 connected with fixed platform 1, moving platform 2 can slide along fixed platform 1, and the height of both ends of moving platform 2 is higher than the middle part, for simulating actual airport pavement;Rut plate test piece 3 is placed on moving platform 2, rut plate test piece 3 surface is coated with marking line, and the height of both ends of rut plate test piece 3 is higher than the middle part, for simulating the impact process of tire on marking line when aircraft landing;Test wheel 4 is fixedly connected to fixed platform 1 by connecting shaft;Driving mechanism 5 is connected with moving platform 2, for driving moving platform 2 to do reciprocating linear motion along the length direction of fixed platform 1;Measuring mechanism 6 is installed on rut plate test piece 3 or moving platform 2, for measuring the thickness change of marking line and the change of impact force of test wheel 4 on marking line.

[0046] Specifically, test wheel 4 is made of high-strength wear-resistant material to ensure the accuracy and consistency of test data.In this embodiment, test wheel 4 is a rubber pneumatic tire, and the rubber hardness of the rubber pneumatic tire ranges from 66IRHD to 72IRHD, and can be 66IRHD, 69IRHD, 72IRHD, etc.;Preferably, the rubber hardness of the rubber pneumatic tire is 66IRHD.More specifically, the tire width is 50.8 cm, and the tire width is consistent with the width of the marking line.

[0047] Specifically, moving platform 2 is installed with a track whose both ends are higher than the middle part, and the longitudinal section shape of the track is crescent-shaped, which facilitates the simulation of the varying impact force of aircraft tire on marking line during landing process;When test wheel 4 is at the higher position of both ends of the track, the contact force of test wheel 4 with marking line is smaller, and when test wheel 4 moves from both ends to the middle, the contact force of test wheel 4 with marking line gradually increases, thereby simulating the impact process of tire on marking line during aircraft landing.

[0048] More specifically, the horizontal width of the crescent-shaped track is consistent with the test length of the marking line to ensure that the test wheel 4 is always in contact with the marking line throughout the test; in this embodiment, the test length of the marking line is 80 cm. The width of the marking line accounts for 1 / 3 of the width of the track.

[0049] With reference to Figure 1 The driving mechanism 5 includes a reciprocating driving member, a support disc 51, a rocker 52, and a rocker arm 53. The reciprocating driving member is connected with the support disc 51 and used to drive the support disc 51 to rotate; the rocker 52 is connected with the support disc 51 and is eccentrically arranged on the support disc 51; the rocker arm 53 is movably connected with one end of the rocker 52 and fixedly connected with the other end of the moving platform 2; specifically, the end of the rocker arm 53 away from the moving platform 2 is hingedly connected with the top end of the rocker 52.

[0050] Specifically, the reciprocating driving member can be a motor, a hydraulic cylinder, a pneumatic cylinder, etc. By arranging the driving member, the rotation of the support disc 51 is driven, so that the rotary motion is converted into the reciprocating linear motion of the moving platform 2 to simulate the rolling process of the aircraft tire on the runway. Such arrangement modes are all available. Preferably, the reciprocating driving member is a motor, which is easy to control and has high precision.

[0051] With reference to Figure 1 The measuring mechanism 6 includes a thickness measuring assembly and a force measuring assembly. The thickness measuring assembly is installed on the moving platform 2 and used to measure the thickness change of the marking line; the force measuring assembly is installed at the bottom of the track board test piece 3 and used to measure the impact force change of the test wheel 4 on the marking line.

[0052] Specifically, the thickness measuring assembly can be a laser range finder, an ultrasonic range finder, a mechanical thickness gauge, etc. By arranging the thickness measuring assembly, the thickness change of the marking line is measured to evaluate the wear degree of the marking line after being subjected to multiple impacts. Such arrangement modes are all available. Preferably, the thickness measuring assembly is a laser range finder.

[0053] Specifically, the force measuring assembly can be a pressure sensor, a strain gauge, an acceleration sensor, etc. By arranging the force measuring assembly, the impact force change of the test wheel 4 on the marking line is measured to evaluate the impact resistance of the marking line. Such arrangement modes are all available. Preferably, the force measuring assembly is a strain gauge, which can sensitively perceive the impact force of the marking line and convert the impact force data into an electrical signal for recording.

[0054] In this embodiment, the data of the thickness change of the marking line with time or the number of impacts is measured by the laser emitter, and the thickness decay rate Rh of the marking line is calculated. The smaller the Rh value is, the better the impact resistance and wear resistance of the marking line are. The calculation formula of Rh is:

[0055]

[0056] Wherein, H0 represents the initial thickness of the marking line, unit: cm; H(t) represents the thickness after each impact, unit: cm; t represents the impact time, unit: s; Rh represents the thickness decay rate of the marking line, unit: m / s.

[0057] Embodiment 2:

[0058] With reference to Figure 1 , this embodiment is used for evaluating the test device of the impact resistance and wear resistance of the airport pavement marking line. On the basis of embodiment 1, the wear resistance of the marking line under the cumulative impact force is reflected by the comprehensive evaluation index P, and the calculation formula of P is:

[0059]

[0060] Wherein, F(t) represents the cumulative impact energy parameter quantified by the force recorder with the change of time or impact times, that is, the integral of the instantaneous impact force measured in each impact, which is used to reflect the cumulative impact effect of the marking line, unit: N·s; The smaller the value of F(t) is, the more obvious the cumulative impact effect of the marking line is. P represents the wear resistance of the marking line under the cumulative impact force, unit: kg -1 ; The smaller the value of P is, the better the impact resistance and wear resistance of the marking line is.

[0061] Embodiment 3:

[0062] With reference to Figure 1 , this embodiment is used for evaluating the test device of the impact resistance and wear resistance of the airport pavement marking line. On the basis of embodiment 1, the measuring mechanism 6 further comprises a central computer. The central computer is connected with the thickness measuring assembly and the force measuring assembly, and is used for recording and storing the data measured by the laser range finder and the strain gauge.

[0063] In this embodiment, the central computer can receive the data of the thickness measuring assembly and the force measuring assembly in real time, and record and store them, so that the test personnel can check and analyze the test data at any time, thereby verifying and optimizing the accuracy of the test results.

[0064] Embodiment 4:

[0065] With reference to Figure 1 , this embodiment is used for evaluating the test device of the impact resistance and wear resistance of the airport pavement marking line. On the basis of embodiment 1, a limiting groove is formed on the moving platform 2. The limiting groove is matched with the size of the rut plate test piece 3, and is used for fixing the position of the rut plate test piece 3.

[0066] In this embodiment, the limiting groove can fix the position of the track plate test piece 3, prevent the track plate test piece 3 from moving or deforming during the test process, and thus ensure the accuracy and repeatability of the test. At the same time, the limiting groove can also keep the track plate test piece 3 in close contact with the moving platform 2, ensuring the accuracy of the measurement data.

[0067] The application discloses a test method for evaluating the impact wear resistance of airport pavement marking lines.

[0068] S1, installing the test device for evaluating the impact wear resistance of airport pavement marking lines;

[0069] S2, installing the track plate test piece 3: placing the track plate test piece 3 in the limiting groove;

[0070] S3, starting the reciprocating motion driving piece, the reciprocating motion driving piece drives the support disc 51 to rotate, the support disc 51 drives the rocker 52 to rotate synchronously, the rocker 52 drives the rocker arm 53 to reciprocate, and the rocker arm 53 drives the moving platform 2 to move linearly along the fixed platform 1;

[0071] S4, measuring the thickness change of the marking line and the impact force of the test wheel 4 on the marking line: in the process that the moving platform 2 moves linearly along the fixed platform 1, the measuring mechanism 6 measures the thickness data of the marking line and the impact force data of the test wheel 4 on the marking line in real time;

[0072] S5, data recording and storage: the central computer receives the data output by the measuring mechanism 6 and records and stores the data;

[0073] S6, calculating the thickness attenuation rate Rh: according to the recorded data, the thickness attenuation rate of the marking line is calculated based on formula (1),

[0074]

[0075] The smaller the Rh value is, the better the impact wear resistance of the marking line is;

[0076] S7, calculating the comprehensive evaluation index P: according to the recorded data and the Rh value, the comprehensive evaluation index P is calculated based on formula (2),

[0077]

[0078] The smaller the F(t) value is, the more obvious the cumulative impact effect of the marking line is;

[0079] The smaller the P value is, the better the impact wear resistance of the marking line is.

[0080] The preferred embodiments of the present application are not intended to limit the scope of the present application, and any equivalent changes made according to the structure, shape, and principle of the present application should be covered by the scope of the present application.

Claims

1. A test device for evaluating the impact wear resistance of an airport pavement marking, characterized in that The test platform comprises a fixed platform (1) and a mobile platform (2) connected with the fixed platform (1), the mobile platform (2) can slide along the fixed platform (1), and the height of the two end portions of the mobile platform (2) is higher than the height of the middle portion, for simulating the impact process of the tire on the marking line when the airplane lands; The rut plate test piece (3) is placed on the mobile platform (2), and the surface of the rut plate test piece (3) is coated with a marking line; The test wheel (4) is fixedly connected to the fixed platform (1) through a connecting shaft; The driving mechanism (5) is connected with the mobile platform (2) and is used for driving the mobile platform (2) to make a reciprocating linear motion along the length direction of the fixed platform (1); And the measuring mechanism (6) is installed on the rut plate test piece (3) or the mobile platform (2) and is used for measuring the thickness change of the marking line and the change of the impact force of the test wheel (4) on the marking line. The driving mechanism (5) comprises a reciprocating driving member, a support disc (51), a rocker (52) and a rocker arm (53); 2. The testing device for evaluating the impact and abrasion resistance of airport pavement markings according to claim 1, characterized in that: The reciprocating driving member is connected with the support disc (51) and is used for driving the support disc (51) to rotate; The rocker (52) is connected with the support disc (51), and the rocker (52) is eccentrically arranged on the support disc (51); One end of the rocker arm (53) is movably connected with the rocker (52), and the other end is fixedly connected with the mobile platform (2). The measuring mechanism (6) comprises a thickness measuring assembly and a force measuring assembly; 3. The testing device for evaluating the impact and abrasion resistance of airport pavement markings according to claim 2, characterized in that: The thickness measuring assembly is installed on the mobile platform (2) and is used for measuring the thickness change of the marking line; The force measuring assembly is installed at the bottom of the rut plate test piece (3) and is used for measuring the change of the impact force of the test wheel (4) on the marking line. The thickness measuring assembly is a laser range finder, and the force measuring assembly is a strain gauge.

4. The testing device for evaluating the impact and abrasion resistance of airport pavement markings according to claim 3, characterized in that: The data of the thickness change of the marking line with time or impact times are measured by the laser emitter, and the thickness decay rate Rh of the marking line is calculated, and the calculation formula of Rh is as follows:

5. The testing device for evaluating the impact and abrasion resistance of markings on an airfield pavement according to any one of claims 1 to 4, characterized in that: Wherein, H0 represents the initial thickness of the marking line, and the unit is cm; H(t) represents the thickness after each impact, and the unit is cm; t represents the impact time, and the unit is s; Rh represents the thickness decay rate of the marking line, and the unit is m / s. The wear resistance of the marking line under the cumulative impact force is reflected by the comprehensive evaluation index P, and the calculation formula of P is as follows:

6. The testing device for evaluating the impact and abrasion resistance of airport pavement markings according to claim 5, characterized in that: The measuring mechanism (6) further comprises a central computer; Wherein, F(t) represents the cumulative impact energy parameter quantified by the force recorded by the force gauge with the change of time or impact times, unit: N·s; P represents the wear-resistant ability of the marking line under the bearing cumulative impact force, unit: kg -1 ; Rh represents the thickness decay rate of the marking line, unit: m / s.

7. The testing device for evaluating the impact and abrasion resistance of airport pavement markings according to claim 3, characterized in that: The central computer is electrically connected with the thickness measuring assembly and the force measuring assembly, and is used for recording and storing the data measured by the laser emitter and the strain gauge. A limiting groove is formed on the mobile platform (2); 8. The testing device for evaluating the impact and abrasion resistance of airport pavement markings according to claim 1, characterized in that: The limiting groove is matched with the size of the rut plate test piece (3) and is used for fixing the position of the rut plate test piece (3). The test wheel (4) is a rubber pneumatic tire, and the rubber hardness of the rubber pneumatic tire ranges from 66IRHD to 72IRHD.

9. The test device for evaluating the impact and abrasion resistance of airport pavement markings according to claim 1, characterized in that: The steps comprise:

10. A test method for evaluating the impact wear resistance of an airport pavement marking, characterized in that, S1, installing the test device for evaluating the impact resistance and wear resistance of the airport pavement marking line according to claim 9; S2, installing the rut plate test piece (3): placing the rut plate test piece (3) in the limiting groove; ​ S3, start the reciprocating motion driving member, the reciprocating motion driving member drives the support disc (51) to rotate, the support disc (51) drives the rocker (52) to rotate synchronously, the rocker (52) drives the rocker arm (53) to reciprocate, the rocker arm (53) drives the moving platform (2) to move linearly along the fixed platform (1); S4, measure the thickness change of the mark line and the impact force of the test wheel (4) on the mark line: in the process of the moving platform (2) moving linearly along the fixed platform (1), the measuring mechanism (6) measures the thickness data of the mark line and the impact force data of the test wheel (4) on the mark line in real time; S5, data recording and storage: the central computer receives the data output by the measuring mechanism (6) and records and stores the data; S6, calculate the thickness decay rate Rh: according to the recorded data, calculate the mark line thickness decay rate Rh based on formula (1), The smaller the Rh value is, the better the impact resistance and wear resistance of the mark line is; S7, calculate the comprehensive evaluation index P: according to the recorded data and the Rh value, calculate the comprehensive evaluation index P based on formula (2), The smaller the F(t) value is, the more obvious the cumulative impact effect of the mark line is; The smaller the P value is, the better the impact resistance and wear resistance of the mark line is.

Citation Information

Patent Citations

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