CN104034370A - Method for achieving on-line detection of reliability of aircraft tire through geometric dimensions - Google Patents
Method for achieving on-line detection of reliability of aircraft tire through geometric dimensions Download PDFInfo
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- CN104034370A CN104034370A CN201410304512.7A CN201410304512A CN104034370A CN 104034370 A CN104034370 A CN 104034370A CN 201410304512 A CN201410304512 A CN 201410304512A CN 104034370 A CN104034370 A CN 104034370A
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Abstract
The invention provides a method for achieving on-line detection of the reliability of an aircraft tire through geometric dimensions. According to the method for achieving on-line detection of the reliability of the aircraft tire through the geometric dimensions, after an aircraft is landed, on-line detection of the geometric dimensions of the aircraft tire is conducted through physical dimension detection equipment, the dimensions are input into a compiled program, and then the current physical performance, the remaining life and the reliability evaluation of the aircraft tire are fed back directly. In this way, detection personnel can directly learn the reduction degree of the current physical performance and learn the current condition of the aircraft tire more accurately. Due to the fact that the on-line detection technology is adopted, disassembly is not needed, efficient and real-time detection of the aircraft tire can be achieved; due to the fact that the current use condition of the tire is fed back directly through an established model equation, the requirement for time efficiency of air force can be met, and weapons can be detected rapidly. Due to the fact that evaluation is completed after detection, the condition of the aircraft tire is analyzed integrally according to the theory of mechanics of the tire, whether the aircraft tire can continuous to work or not can be judged rapidly, the available safe life of the aircraft tire can be predicted, and the remaining life of the aircraft tire can be predicted.
Description
Technical field
The present invention relates to a kind of method that detects online aircraft tyre reliability by physical dimension, belong to and survey aircraft tyre reliability method technical field.
Background technology
Aircraft tyre in use, because working strength is large, environment is severe, the phenomenon such as can cause decorative pattern heavy wear, cords break, aircraft tyre propagation of internal cracks and bubble to increase even to blow out, and aircraft safety is caused to grave danger.Along with the change of aircraft tyre hardness, size, decorative pattern abrasion condition, aircraft tyre can continue the also change gradually of number of times using, when some hydraulic performance declines of tire are to a certain extent time, the aircraft tyre that aircraft must more renew, otherwise very large potential safety hazard will be had, the serious personal safety that is threatening aircraft and occupant.
At present aircraft tyre is all in the time dispatching from the factory, to carry out complete detection, and testing process complexity expends time in, man power and material.And can only detect the capability and performance of aircraft tyre while just having dispatched from the factory, in the time that performance touches the mark, can use safely, but but cannot be installed to rear regular safety detection on aircraft at tire.Military aviation tire used frequency is high, the rest and reorganization time is short, often has little time dismounting detection and just again comes into operation.And current the detection of aircraft tyre in using is mainly relied on to range estimation and experience, do not have the checkout equipment of architectonical and theoretical foundation to support.Judge the situation such as tire pressure, surface abrasion according to the apparent phenomenon such as range estimation carcass deflection, tyre surface crackles, infer the residue access times of aircraft tyre according to testing staff's experience.Such detection is inaccurate, and can not be fast after detecting make effectively evaluating and prediction by the data of detection to the current behaviour in service of tire, thereby infers accurately and residue access times.
Summary of the invention
The object of the invention is the problem existing in order to solve above-mentioned prior art, infer the residue access times of aircraft tyre according to testing staff's experience.Such detection is inaccurate, and can not be fast after detecting make effectively evaluating and prediction by the data of detection to the current behaviour in service of tire, thereby infers accurately and residue access times.And then provide a kind of method that detects online aircraft tyre reliability by physical dimension.
The object of the invention is to be achieved through the following technical solutions:
Detect online a method for aircraft tyre reliability by physical dimension,
Step 1, measurement to different landing number of times aircraft tyre physical dimensions
Utilize the aircraft tyre sample of the different landing number of times that aircraft tyre factory provides, comprise from landing 1 time to the tire sample of finally scrapping number of times, utilize physical dimension testing apparatus to measure its physical dimension in laboratory; Measurement range comprises that the groove degree of depth, test ground area groove depth profile, the test outer profile size of testing aircraft tyre change and these several of testing level axle height change;
Step 2, measure different landing number of times aircraft tyre mechanical properties and chemical constitution
The aircraft tyre elastomeric material of different landing number of times is made to the test specimen of dumbbell shape and column type, test specimen is carried out to quantitative measurement, comprise tensile strength at yield, tensile modulus, tear strength, hardness and compression set.The aircraft tyre elastomeric material of different landing number of times is carried out to the test of cross-linking density, and carry out the test of x-ray photoelectron power spectrum and examination of infrared spectrum, analyze the degree of aging of the aircraft tyre elastomeric material of different landing number of times, functional group's situation of change, cross-linking density situation of change.Analyze the degree of aging of aircraft tyre elastomeric material from chemism;
Step 3, set up different aircraft tyre physical dimensions and material property and can use the relational model of number of times safely
The analysis of summarizing of aircraft tyre elastomeric material physical property to different landing number of times and the result of test chemical analysis, draws physical function parameter and comprises tensile strength at yield, tensile modulus, tear strength, hardness and the compression set relation curve with landing number of times; Utilize the maximum access times of analyses and prediction in variation and the chemism of physical property, and the performance situation of aircraft tyre elastomeric material under each access times, set up the relational model of the aircraft tyre physical dimension groove degree of depth, ground area groove depth profile, outer profile size and tire current performance and access times; Utilize a program of computer programming establishment, physical dimension and access times and property relationship are mapped, realize and input physical dimension and just can feed back the current physical property of aircraft tyre, remain access times and reliability evaluation;
Step 4, the online detection of aircraft tyre physical dimension and data analysing method
After aircraft landing, detect online the physical dimension of aircraft tyre by physical dimension testing apparatus, by the program of size input establishment, directly feed back the current physical property of aircraft tyre, residue access times and reliability evaluation.
Method of the present invention is the online detection by physical dimension, obtain the current service condition of aircraft tyre and residue safe handling number of times, utilize a large amount of experimental data in laboratory, develop the program of physical dimension and performance corresponding relation, realize and need not dismantle online detection analysis tyre performance, obtained the information of performance parameter and residue safe handling number of times.Greatly facilitate testing staff and the pilot test to tire, changed the present situation that can only rely at present range estimation and empirical analysis, improved the safety coefficient of aircraft, reduced the probability of tire accident, there is great production, application prospect.
Embodiment
The present invention is described in further detail below: the present embodiment is implemented under taking technical solution of the present invention as prerequisite, provided detailed embodiment, but protection scope of the present invention is not limited to following embodiment.
A kind of method that detects online aircraft tyre reliability by physical dimension that the present embodiment is related, concrete operation step is as follows:
Step 1, measurement to different landing number of times aircraft tyre physical dimensions
Utilize the aircraft tyre sample of the different landing number of times that aircraft tyre factory provides, comprise from landing 1 time to the tire sample of finally scrapping number of times, utilize physical dimension testing apparatus to measure its physical dimension in laboratory.Measurement range comprises that the groove degree of depth, test ground area groove depth profile, the test outer profile size of testing aircraft tyre change and these several of testing level axle height change.
For example, taking aircraft tyre broadcast 737 as example, main wheel is of a size of H44.5*16.5-21, H43.5*16-21, H40*14.5-19.On access times, be limited to average 165 left and right.The process that access times change for from 0 to 165 time, the study on tire pattern degree of depth has reduced 5mm left and right, and transverse axis height drops to 55.7cm by 56.5cm and reduces 8mm left and right.
Step 2, measure different landing number of times aircraft tyre mechanical properties and chemical constitution
The aircraft tyre elastomeric material of different landing number of times is made to the test specimen of dumbbell shape and column type, test specimen is carried out to quantitative measurement, comprise tensile strength at yield, tensile modulus, tear strength, hardness and compression set.The aircraft tyre elastomeric material of different landing number of times is carried out to the test of cross-linking density, and carry out the test of x-ray photoelectron power spectrum and examination of infrared spectrum, analyze the degree of aging of the aircraft tyre elastomeric material of different landing number of times, functional group's situation of change, cross-linking density situation of change.Analyze the degree of aging of aircraft tyre elastomeric material from chemism.
For example, equally taking aircraft tyre broadcast 737 as example, main wheel is of a size of H44.5*16.5-21, H43.5*16-21, H40*14.5-19.On access times, be limited to average 165 left and right.The rubber for tire test specimen of different landing number of times is carried out to mechanical property and chemical property test.The process that access times change for from 0 to 165 time, pulling strengrth is initially 380kg/cm
2left and right reduces gradually, reduces at most 60% left and right; 100% stress at definite elongation increases early stage to some extent, tends to be steady gradually; 300% stress at definite elongation is initially 95 kg/cm
2left and right, first increase early stage, and the later stage reduces gradually; Along with increasing of access times, hardness is increased gradually by initial 65HA left and right, and compression set is increased gradually by 30% left and right; And show by infrared and test XPS, along with the increase of access times, O constituent content increases gradually.
Step 3, set up different aircraft tyre physical dimensions and material property and can use the relational model of number of times safely
The analysis of summarizing of aircraft tyre elastomeric material physical property to different landing number of times and the result of test chemical analysis, draws physical function parameter and comprises tensile strength at yield, tensile modulus, tear strength, hardness and the compression set relation curve with landing number of times.Utilize the maximum access times of analyses and prediction in variation and the chemism of physical property, and the performance situation of aircraft tyre elastomeric material under each access times, set up the relational model of the aircraft tyre physical dimension groove degree of depth, ground area groove depth profile, outer profile size and tire current performance and access times.Utilize a program of computer programming establishment, physical dimension and access times and property relationship are mapped, realize and input physical dimension and just can feed back the current physical property of aircraft tyre, remain access times and reliability evaluation.
Step 4, the online detection of aircraft tyre physical dimension and data analysing method
After aircraft landing, detect online the physical dimension of aircraft tyre by physical dimension testing apparatus, by the program of size input establishment, directly feed back the current physical property of aircraft tyre, residue access times and reliability evaluation.The physical property that testing staff or pilot can directly obtain current aircraft tyre has like this declined how many, how long can also use the latter's landing how many times, has understood more accurately aero tyre present case.
Online measuring technique does not need to dismantle, can carry out high-level efficiency to aircraft tyre detects in real time, equipment by hand-held is tested some parameters of tire, and directly feed back the current behaviour in service of tire by the model equation of setting up, can meet like this requirement of air force for time efficiency, fast detecting weaponry.Evaluating is after detection completes, and according to the theoretical holistic approach aircraft tyre of mechanics of tire situation, judges fast whether aircraft tyre can work on and predict that aircraft tyre can and remain access times with safe life.
Described physical dimension testing apparatus is rule or vernier caliper.
The above; it is only preferably embodiment of the present invention; these embodiments are all the different implementations based under general idea of the present invention; and protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
Claims (2)
1. a method that detects online aircraft tyre reliability by physical dimension, is characterized in that,
Step 1, measurement to different landing number of times aircraft tyre physical dimensions
Utilize the aircraft tyre sample of the different landing number of times that aircraft tyre factory provides, comprise from landing 1 time to the tire sample of finally scrapping number of times, utilize physical dimension testing apparatus to measure its physical dimension in laboratory; Measurement range comprises that the groove degree of depth, test ground area groove depth profile, the test outer profile size of testing aircraft tyre change and these several of testing level axle height change;
Step 2, measure different landing number of times aircraft tyre mechanical properties and chemical constitution
The aircraft tyre elastomeric material of different landing number of times is made to the test specimen of dumbbell shape and column type, test specimen is carried out to quantitative measurement, comprise tensile strength at yield, tensile modulus, tear strength, hardness and compression set; The aircraft tyre elastomeric material of different landing number of times is carried out to the test of cross-linking density, and carry out the test of x-ray photoelectron power spectrum and examination of infrared spectrum, analyze the degree of aging of the aircraft tyre elastomeric material of different landing number of times, functional group's situation of change, cross-linking density situation of change, analyzes the degree of aging of aircraft tyre elastomeric material from chemism;
Step 3, set up different aircraft tyre physical dimensions and material property and can use the relational model of number of times safely
The analysis of summarizing of aircraft tyre elastomeric material physical property to different landing number of times and the result of test chemical analysis, draws physical function parameter and comprises tensile strength at yield, tensile modulus, tear strength, hardness and the compression set relation curve with landing number of times; Utilize the maximum access times of analyses and prediction in variation and the chemism of physical property, and the performance situation of aircraft tyre elastomeric material under each access times, set up the relational model of the aircraft tyre physical dimension groove degree of depth, ground area groove depth profile, outer profile size and tire current performance and access times; Utilize a program of computer programming establishment, physical dimension and access times and property relationship are mapped, realize and input physical dimension and just can feed back the current physical property of aircraft tyre, remain access times and reliability evaluation;
Step 4, the online detection of aircraft tyre physical dimension and data analysing method
After aircraft landing, detect online the physical dimension of aircraft tyre by physical dimension testing apparatus, by the program of size input establishment, directly feed back the current physical property of aircraft tyre, residue access times and reliability evaluation.
2. the method that detects online aircraft tyre reliability by physical dimension according to claim 1, is characterized in that, described physical dimension testing apparatus is rule or vernier caliper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410304512.7A CN104034370A (en) | 2014-06-30 | 2014-06-30 | Method for achieving on-line detection of reliability of aircraft tire through geometric dimensions |
| CN201410686098.0A CN104535746B (en) | 2014-06-30 | 2014-11-25 | A kind of method by physical dimension on-line checkingi aircraft tyre reliability |
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| CN201410304512.7A CN104034370A (en) | 2014-06-30 | 2014-06-30 | Method for achieving on-line detection of reliability of aircraft tire through geometric dimensions |
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| CN201410686098.0A Active CN104535746B (en) | 2014-06-30 | 2014-11-25 | A kind of method by physical dimension on-line checkingi aircraft tyre reliability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841743A (en) * | 2016-04-27 | 2016-08-10 | 青岛微海自动化设备有限公司 | Tire comprehensive measurement device and method |
| CN112287505A (en) * | 2019-07-09 | 2021-01-29 | 广州汽车集团股份有限公司 | Method and device for generating front wheel envelope, and computer storage medium and equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106556335B (en) * | 2016-11-15 | 2019-06-14 | 北京万集科技股份有限公司 | A kind of tire ground connection dimension measurement method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3722270A (en) * | 1965-10-24 | 1973-03-27 | L Sperberg | Non-destructive method of determining tire life |
| JP3277156B2 (en) * | 1998-05-08 | 2002-04-22 | 株式会社ブリヂストン | Tire wear life prediction method |
| US7228732B2 (en) * | 2001-01-26 | 2007-06-12 | Bridgestone Firestone North American Tire, Llc | Tire wear analysis method |
| US8395492B2 (en) * | 2010-09-27 | 2013-03-12 | The Boeing Company | Tire monitoring in vehicles |
| JP5542104B2 (en) * | 2011-08-09 | 2014-07-09 | 住友ゴム工業株式会社 | Method for evaluating the wear resistance of tires |
| CN103057361A (en) * | 2013-01-04 | 2013-04-24 | 毕雪松 | System for detecting wearing of tire based on electronic tag, and detection method thereof |
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2014
- 2014-06-30 CN CN201410304512.7A patent/CN104034370A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841743A (en) * | 2016-04-27 | 2016-08-10 | 青岛微海自动化设备有限公司 | Tire comprehensive measurement device and method |
| CN112287505A (en) * | 2019-07-09 | 2021-01-29 | 广州汽车集团股份有限公司 | Method and device for generating front wheel envelope, and computer storage medium and equipment |
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| CN104535746A (en) | 2015-04-22 |
| CN104535746B (en) | 2016-01-20 |
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Application publication date: 20140910 |