CN107782478A - Online pipe joint element erection stress detecting system and detection recognition method - Google Patents
Online pipe joint element erection stress detecting system and detection recognition method Download PDFInfo
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- CN107782478A CN107782478A CN201710750679.XA CN201710750679A CN107782478A CN 107782478 A CN107782478 A CN 107782478A CN 201710750679 A CN201710750679 A CN 201710750679A CN 107782478 A CN107782478 A CN 107782478A
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- CN
- China
- Prior art keywords
- conduit
- assembling
- erection stress
- frequency spectrum
- pipe joint
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0047—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
Claims (10)
- A kind of 1. online pipe joint element erection stress detecting system, it is characterised in that including:System setup module, data Acquisition module, model analysis module, erection stress identification module, sample data setup module, wherein,System setup module, correspond to the setting of cast and installation site for carrying out catheter model, and data acquisition parameters are set Put;Data acquisition module, mould measurement is carried out using hammering method, shock response data is obtained and is preserved;Model analysis module, for obtaining the standard frequency receptance function of conduit, and the dynamic stiffness of guide-tube structure;Sample data setup module, for establishing the standard frequency spectrum database of conduit assembling, the frequency of line frequency of going forward side by side receptance function Spectrum display;Erection stress identification module, for judging whether targeted conductor assembling is qualified.
- 2. online pipe joint element erection stress detecting system according to claim 1, it is characterised in that described mould The standard frequency receptance function that state analysis module obtains conduit specifically includes:A. the frequency response function of conduit is obtained by Fast Fourier Transform (FFT);B. the rule that frequency response function changes with erection stress is obtained using above-mentioned standard frequency response function.
- 3. online pipe joint element erection stress detecting system according to claim 2, it is characterised in that described frequency The rule that rate receptance function changes with erection stress is specially:Conduit is in the case where forcing displacement to assemble, with forcing displacement Increase, the increase of pipe joint stress, when stress increases to certain value, the unimodal of conduit frequency spectrum script occurs that division is existing As judging that conduit erection stress has excessive situation according to the separating phenomenon.
- 4. online pipe joint element erection stress detecting system according to claim 1, it is characterised in that sample data The standard frequency spectrum database that setup module establishes conduit assembling specifically includes:By detecting substantial amounts of conduit frequency spectrum data, and with Track conduit service life and failure situation, the analysis based on service life and security is carried out to conduit, so as to establish conduit dress The standard frequency spectrum database matched somebody with somebody.
- 5. online pipe joint element erection stress detecting system as claimed in any of claims 1 to 4, its feature It is, erection stress identification module judges whether targeted conductor assembling is qualified and specifically included:A. judge whether the unimodal of targeted conductor frequency spectrum script occurs separating phenomenon using standard frequency receptance function, if occurring Then targeted conductor erection stress is excessive, and targeted conductor assembling is unqualified;If not occurring, into following step b;B. using angle analogue method by the frequency spectrum data that targeted conductor measures compared with standard frequency spectrum database, evaluate conduit Whether assembling is qualified.
- 6. a kind of online pipe joint element erection stress detection recognition method, it uses any one in the claims 1-5 The detecting system of item, it is characterised in that comprise the following steps that:The tubular and installation site of conduit is determined according to the model of conduit;The standard frequency receptance function of conduit is obtained using modal analysis method;The rule that frequency response function changes with erection stress is obtained using the standard frequency receptance function of above-mentioned conduit;Establish the standard frequency spectrum database of conduit assembling;Judge whether targeted conductor assembling is qualified;If qualified, assembling is completed, and is terminated;If unqualified, continue after ressembling Judge whether assembling is qualified.
- 7. online pipe joint element erection stress detection recognition method according to claim 6, it is characterised in that described The standard frequency receptance function that conduit is obtained using modal analysis method specifically include:A. in the assembled condition, firmly hammer taps the conduit for posting acceleration transducer to conduit;B. collector gathered data is utilized, the standard frequency receptance function of conduit is obtained by Fast Fourier Transform (FFT);C. the rule that frequency response function changes with erection stress is obtained using above-mentioned standard frequency response function.
- 8. the online pipe joint element erection stress detection recognition method stated according to claim 7, it is characterised in that described The rule that frequency response function changes with erection stress is specially:Conduit is in the case where forcing displacement to assemble, with forcing position The increase of shifting, the increase of pipe joint stress, when stress increases to certain value, the unimodal of conduit frequency spectrum script occurs that division is existing As judging that conduit erection stress has excessive situation according to the separating phenomenon.
- 9. online pipe joint element erection stress detection recognition method according to claim 6, it is characterised in that described Establish conduit assembling standard frequency spectrum database specifically include:By detecting substantial amounts of conduit frequency spectrum data, and track conduit Service life and failure situation, the analysis based on service life and security is carried out to conduit, so as to establish the mark of conduit assembling Quasi- frequency spectrum data storehouse.
- 10. online pipe joint element erection stress detection recognition method according to claim 6, it is characterised in that sentence Whether disconnected targeted conductor assembling is qualified to specifically include:A. judge whether the unimodal of targeted conductor frequency spectrum script occurs separating phenomenon using standard frequency receptance function, if occurring Then targeted conductor erection stress is excessive, and targeted conductor assembling is unqualified;If not occurring, into following step b;B. using angle analogue method by the frequency spectrum data that targeted conductor measures compared with standard frequency spectrum database, evaluate conduit Whether assembling is qualified.
Priority Applications (1)
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CN201710750679.XA CN107782478A (en) | 2017-08-28 | 2017-08-28 | Online pipe joint element erection stress detecting system and detection recognition method |
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CN201710750679.XA CN107782478A (en) | 2017-08-28 | 2017-08-28 | Online pipe joint element erection stress detecting system and detection recognition method |
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CN201710750679.XA Pending CN107782478A (en) | 2017-08-28 | 2017-08-28 | Online pipe joint element erection stress detecting system and detection recognition method |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108916471A (en) * | 2018-07-26 | 2018-11-30 | 南京航空航天大学 | A kind of the determination method and determining system of pipeline clamp installation site |
CN110569597A (en) * | 2019-09-09 | 2019-12-13 | 珠海格力电器股份有限公司 | pipeline piece management method, storage medium and computer equipment |
CN110598329A (en) * | 2019-09-16 | 2019-12-20 | 珠海格力电器股份有限公司 | Pipeline piece design method, storage medium and computer equipment |
CN111197970A (en) * | 2020-02-28 | 2020-05-26 | 成都飞机工业(集团)有限责任公司 | Engine interface digital measurement method |
CN112526916A (en) * | 2020-10-27 | 2021-03-19 | 成都飞机工业(集团)有限责任公司 | Airplane assembly fixture collision monitoring method |
CN113340493A (en) * | 2021-05-11 | 2021-09-03 | 西安交通大学 | Laser shock peening quality on-line monitoring method based on modal acoustic emission spectrum ratio |
CN115265669A (en) * | 2022-09-19 | 2022-11-01 | 博格达智能装备(南通)有限公司 | Pipe cutting hot melting process quality detection system based on two classifiers |
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EP1780540A4 (en) * | 2004-07-26 | 2013-10-30 | Sekisui Chemical Co Ltd | Buried pipe examining method |
CN102507742A (en) * | 2011-11-18 | 2012-06-20 | 西安向阳航天材料股份有限公司 | Method for evaluating bonding strength of mechanical composite tube |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108916471A (en) * | 2018-07-26 | 2018-11-30 | 南京航空航天大学 | A kind of the determination method and determining system of pipeline clamp installation site |
CN110569597A (en) * | 2019-09-09 | 2019-12-13 | 珠海格力电器股份有限公司 | pipeline piece management method, storage medium and computer equipment |
CN110598329A (en) * | 2019-09-16 | 2019-12-20 | 珠海格力电器股份有限公司 | Pipeline piece design method, storage medium and computer equipment |
CN111197970A (en) * | 2020-02-28 | 2020-05-26 | 成都飞机工业(集团)有限责任公司 | Engine interface digital measurement method |
CN112526916A (en) * | 2020-10-27 | 2021-03-19 | 成都飞机工业(集团)有限责任公司 | Airplane assembly fixture collision monitoring method |
CN113340493A (en) * | 2021-05-11 | 2021-09-03 | 西安交通大学 | Laser shock peening quality on-line monitoring method based on modal acoustic emission spectrum ratio |
CN115265669A (en) * | 2022-09-19 | 2022-11-01 | 博格达智能装备(南通)有限公司 | Pipe cutting hot melting process quality detection system based on two classifiers |
CN115265669B (en) * | 2022-09-19 | 2023-10-13 | 博格达智能装备(南通)有限公司 | Pipe cutting hot melting process quality detection system based on two classifiers |
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Address after: 610092 Weiyi Road, Huangtianba, Qingyang District, Chengdu City, Sichuan Province Applicant after: Chengdu Aircraft Industrial (Group) Co.,Ltd. Applicant after: Nanjing University of Aeronautics and Astronautics Address before: No. 29, Qinhuai District, Qinhuai District, Nanjing, Jiangsu Applicant before: Nanjing University of Aeronautics and Astronautics Applicant before: Chengdu Aircraft Industrial (Group) Co.,Ltd. |
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Inventor after: Zhao Zhengda Inventor after: Cun Wen Yuan Inventor after: Chen Guo Inventor after: Hou Minli Inventor after: Zhang Maolin Inventor after: Liu Binbin Inventor after: Liu Qi Inventor before: Chen Guo Inventor before: Zhao Zhengda Inventor before: Liu Binbin Inventor before: Hou Minli Inventor before: Zhang Maolin Inventor before: Cun Wen Yuan Inventor before: Liu Qi |
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