CN104197993A - Health monitoring and safety warning method for shipbuilding gantry crane structure - Google Patents
Health monitoring and safety warning method for shipbuilding gantry crane structure Download PDFInfo
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- CN104197993A CN104197993A CN201410487206.1A CN201410487206A CN104197993A CN 104197993 A CN104197993 A CN 104197993A CN 201410487206 A CN201410487206 A CN 201410487206A CN 104197993 A CN104197993 A CN 104197993A
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Abstract
The invention discloses a health monitoring and safety warning method for a shipbuilding gantry crane structure. The method includes: performing finite element modeling on the shipbuilding gantry crane structure and calculating to obtain stress concentration points; setting warning thresholds and alarm thresholds for the gantry crane metal structure; adopting real-time stress information of the shipbuilding gantry crane structure and transmitting the information to a fiber-bragg-grating demodulation device; calculating the obtained stress for the collected information, comparing the stress with the warning thresholds and the alarm thresholds, and judging the state the a shipbuilding gantry crane is in; remotely transmitting the state information of the shipbuilding gantry crane is in. By the aid of technological means of the fiber-bragg-grating sensing technology, the wireless transmission technology and the like immune to electromagnetic interference, monitoring of the hoisting machinery structure is upgraded to the level of real-time online monitoring, so that the health monitoring and safety warning method has the advantages of high precision, wide range, high reliability, intellectuality, long service life and the like.
Description
Technical field
The present invention relates to a kind of ship-building gantry crane monitoring structural health conditions and safe early warning method.
Background technology
Hoisting machinery is major industry enterprise production link " backbone ", but the situation and challenge that large scale hoisting machinery safety problem faces is very severe, and particularly serious accident still happens occasionally, and therefore, research crane safety Forewarning Measures is the task of top priority.At present, domestic is still main with the periodic inspection of " time-based maintenance; correction maintenance " of repair and maintenance unit and 2 years one-periods of quality testing department to hoisting machinery safety assurance, lack goliath monitoring structural health conditions and early warning technology, need badly propose one targetedly measure prevent this type of accident to occur.[2011] No. 137 files of the special connection of state's quality inspection " about the notice of printing and distributing large scale hoisting machinery installation security monitoring management system embodiment " are pointed out, during " 12 ", supervisory system will be progressively installed on goliath, strengthen safety supervision, the attention of visible country to crane safety monitoring.
Ship-building gantry crane is the hoisting device that a kind of horizontal bridge frame is arranged on the door frame shape forming on firm, soft two supporting legs, is mainly used in the assembled hull of dock.Because it is across on dock, can cover dock plane is erecting yard service, not only has the function such as lifting, translation, and can realize the air turning of body section,, greatly improve shipbuilding efficiency, thereby be used widely at shipyard to welding desired location sectional-regulated.As the important utility appliance of shipbuilding industry, the weight of ship-building gantry crane institute handling is varied, and load is also complicated and changeable, and its dynamic perfromance is comparatively obvious, and fatigure failure easily occurs.For the ship-building gantry crane of big elevating capacity, large span, large lifting height, once there is fatigure failure, consequence is often very serious.Ship-building gantry crane is as a kind of a large amount of wide large scale hoisting machineries of face that use, and its security situation facing and challenge are severeer.Therefore, ship-building gantry crane metal construction being carried out to Real-Time Monitoring, is the specific embodiments of ship-building gantry crane monitoring structural health conditions and safe early warning method exploitation.
Summary of the invention
In view of the existing problem of above-mentioned prior art, the object of this invention is to provide a kind of ship-building gantry crane monitoring structural health conditions and safe early warning method, the method comprises the following steps:
A carries out finite element modeling to ship-building gantry crane structure, and calculates acquisition stress concentration point;
B sets gantry metal construction threshold value of warning and alarm threshold value;
C gather ship-building gantry crane metal construction stress real-time information and by described communication to fiber Bragg grating (FBG) demodulator;
D calculates stress to the information gathering, and described stress and threshold value of warning and alarm threshold value are compared, and judges ship-building gantry crane status;
The long-range transmission ship-building gantry crane of E status information.
Compared with prior art, one or more embodiment of the present invention can have the following advantages by tool:
Utilize the fiber grating sensing technology that is not subject to electromagnetic interference (EMI), the technological means such as Radio Transmission Technology, hoisting machinery structure monitoring is promoted to real time on-line monitoring level by regular detection, there is the features such as high precision, wide-range, high reliability, intelligent, the life-span is long.
Brief description of the drawings
Fig. 1 is a kind of ship-building gantry crane monitoring structural health conditions of the present invention and safe early warning method realization flow figure;
A kind of ship-building gantry crane monitoring structural health conditions of Fig. 2 and the safe early warning method sensor position optimization scheme of layouting;
Fig. 3 is that ship-building gantry crane early warning and alarm threshold value are set scheme schematic diagram;
Fig. 4 is the implementation structure block diagram of soft ware platform in ship-building gantry crane monitoring structural health conditions and safe early warning method.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail:
The present embodiment provides a kind of ship-building gantry crane monitoring structural health conditions and safe early warning method, and as shown in Figure 1, the method mainly comprises:
A kind of ship-building gantry crane monitoring structural health conditions and safe early warning method, is characterized in that, the method comprises the following steps:
Step 10 is carried out finite element modeling to ship-building gantry crane structure, and calculates acquisition stress concentration point;
Step 20 is set gantry metal construction threshold value of warning and alarm threshold value;
Step 30 gather the stress real-time information of ship-building gantry crane metal construction and by described communication to fiber Bragg grating (FBG) demodulator;
Step 40 calculates stress to the information gathering, and described stress and threshold value of warning and alarm threshold value are compared, and judges ship-building gantry crane status;
The long-range transmission ship-building gantry crane of step 50 status information.
Described step 10 specifically comprises: by dynamic analysis, statics Analysis, ship-building gantry crane structure is carried out to finite element modeling, by the optimization of setting up an office of finite element (FEM) result of calculation, number of sensors and type selecting, determine fiber-optic grating sensor position and quantity, Fig. 2 is ship-building gantry crane monitoring structural health conditions and the safe early warning method sensor position optimization scheme of layouting, and first letter is cross section numbering; Second letter, L (Left) refers to left side, R (Right) refers to right side, taking rigid leg as front side, correspondingly determines left and right sides; The 3rd letter, except unique temperature sensor CLT, other are all the corresponding sequence number of strain gauge.Each sectional tool body position is as shown in table 1.
The each sectional tool of table 1 body position
As shown in Figure 3, ship-building gantry crane metal construction often adopts Q345 steel or Q235 steel to described step 20 specific implementation process.The alarm threshold value of Q345 steel part is set as the permissible stress 257MPa of Q345 steel, and the warning stress of Q235 steel is set as its permissible stress 175MPa.If exceed at work the permissible stress of material, we think that crane is in the hole so, must take urgent measure and prevent dangerous generation.The position early warning stress of layouting is set as 1.25 times of its FEM (finite element) calculation maximum stress, and warning stress is set as the permissible stress of ship-building gantry crane material therefor.
Described step 30 specifically comprises the real-time information of the main metal construction stress of fiber-optic grating sensor signals collecting network collection ship-building gantry crane, by optical fiber, by the signal transmission back into optical fibers grating demodulation instrument collecting, fiber Bragg grating (FBG) demodulator is processed and is waited for that soft ware platform calls from the PCI serial ports of fiber Bragg grating (FBG) demodulator through back-end data.Above-mentioned stress real-time information comprises stress, strain, temperature and acceleration structural health parameter.
Described step 40 and 50 specifically comprises: soft ware platform reading information also calculates, showing screen display stress information, and stress information is transferred data to remote service end by GPRS module or wireless network, client passes through PC terminal in online real time inspection Monitoring Data and historical data; The stress that soft ware platform obtains after calculating simultaneously and alarm threshold value and threshold value of warning compare, judge that ship-building gantry crane is in nothing police, early warning or alarm condition, if in early warning or alarm condition, the touch-screen that is arranged on cab sends alerting signal, and simultaneity factor sends early warning or alarming short message by EDGE/3G module to responsible official.
Described step 50 specifically comprises: the real-time information of the main metal construction stress of fiber-optic grating sensor signals collecting network collection ship-building gantry crane, by optical fiber, by the signal transmission back into optical fibers grating demodulation instrument collecting, fiber Bragg grating (FBG) demodulator is processed and is waited for that soft ware platform calls from the PCI serial ports of fiber Bragg grating (FBG) demodulator through back-end data;
Before execution step 30, also comprise design with debugging crane soft ware platform and set up ship-building gantry crane sensor network.Soft ware platform development environment is selected Visual Studio 2013, and development language is selected C#, and database is selected Sqlite, and third party UI control uses Devexpress.The structured flowchart that soft ware platform is realized as shown in Figure 4.The Sensor Network that above-mentioned establishment ship-building gantry crane sensor network is made up of the fiber-optic grating sensor being welded in the main metal structure surface of ship-building gantry crane.
The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (7)
1. ship-building gantry crane monitoring structural health conditions and a safe early warning method, is characterized in that, the method comprises the following steps:
A carries out finite element modeling to ship-building gantry crane structure, and calculates acquisition stress concentration point;
B sets gantry metal construction threshold value of warning and alarm threshold value;
C gather ship-building gantry crane metal construction stress real-time information and by described communication to fiber Bragg grating (FBG) demodulator;
D calculates stress to the information gathering, and described stress and threshold value of warning and alarm threshold value are compared, and judges ship-building gantry crane status;
The long-range transmission ship-building gantry crane of E status information.
2. ship-building gantry crane monitoring structural health conditions according to claim 1 and safe early warning method, is characterized in that, also comprises design with debugging crane soft ware platform and set up ship-building gantry crane sensor network before execution step C.
3. ship-building gantry crane monitoring structural health conditions according to claim 1 and safe early warning method, is characterized in that, steps A is carried out finite element modeling by dynamic analysis, statics Analysis to ship-building gantry crane structure.
4. ship-building gantry crane monitoring structural health conditions according to claim 1 and safe early warning method, it is characterized in that, in described step B, threshold value of warning is set as 1.25 times of sensor position maximum stress, and warning stress is set as the permissible stress of ship-building gantry crane material therefor.
5. ship-building gantry crane monitoring structural health conditions according to claim 1 and safe early warning method, is characterized in that, in described step C, stress real-time information comprises stress, strain, temperature and acceleration structural health parameter.
6. ship-building gantry crane monitoring structural health conditions according to claim 1 and safe early warning method, is characterized in that, in described step D, ship-building gantry crane state comprises without police, early warning and alarm condition.
7. ship-building gantry crane monitoring structural health conditions according to claim 6 and safe early warning method, is characterized in that, described early warning or alarm condition signal carry out remote transmission by EDGE/3G.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954294A (en) * | 2016-05-13 | 2016-09-21 | 北京航空航天大学 | Sensor based real-time crack monitoring system and monitoring method thereof |
| CN106847055A (en) * | 2017-01-18 | 2017-06-13 | 山东省特种设备检验研究院泰安分院 | A kind of lifting machinery metal structure stress-strain test apparatus for demonstrating |
| CN106895884A (en) * | 2017-04-28 | 2017-06-27 | 太原重工股份有限公司 | Crane for steelworks use girder stress, system for detecting temperature |
| CN109052181A (en) * | 2018-10-31 | 2018-12-21 | 中船第九设计研究院工程有限公司 | A kind of shipbuilding gantry crane failure monitoring diagnostic system and method |
| CN109118383A (en) * | 2018-10-31 | 2019-01-01 | 中船第九设计研究院工程有限公司 | Shipbuilding production management system and method based on gate-type lifting operation conditions |
| CN109145469A (en) * | 2018-08-29 | 2019-01-04 | 中国电建集团华东勘测设计研究院有限公司 | Offshore structure performance monitoring and O&M decision-making technique, apparatus and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070006653A1 (en) * | 2003-09-22 | 2007-01-11 | Advanced Structure Monitoring, Inc. | Diagnostic system for monitoring structural health conditions |
| CN202524430U (en) * | 2012-03-15 | 2012-11-07 | 中国特种设备检测研究院 | Hoisting machinery health monitoring system based on field bus sensing technology |
| CN202518951U (en) * | 2012-03-15 | 2012-11-07 | 中国特种设备检测研究院 | Hoisting machine health monitoring system based on fiber bragg grating sensing technology |
| CN103267763A (en) * | 2013-04-27 | 2013-08-28 | 广州市特种机电设备检测研究院 | Health monitoring method for metal structure of hoisting machinery |
| CN203333179U (en) * | 2013-06-05 | 2013-12-11 | 广州市特种机电设备检测研究院 | Health monitoring system for metal structure of gantry crane |
-
2014
- 2014-09-22 CN CN201410487206.1A patent/CN104197993A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070006653A1 (en) * | 2003-09-22 | 2007-01-11 | Advanced Structure Monitoring, Inc. | Diagnostic system for monitoring structural health conditions |
| CN202524430U (en) * | 2012-03-15 | 2012-11-07 | 中国特种设备检测研究院 | Hoisting machinery health monitoring system based on field bus sensing technology |
| CN202518951U (en) * | 2012-03-15 | 2012-11-07 | 中国特种设备检测研究院 | Hoisting machine health monitoring system based on fiber bragg grating sensing technology |
| CN103267763A (en) * | 2013-04-27 | 2013-08-28 | 广州市特种机电设备检测研究院 | Health monitoring method for metal structure of hoisting machinery |
| CN203333179U (en) * | 2013-06-05 | 2013-12-11 | 广州市特种机电设备检测研究院 | Health monitoring system for metal structure of gantry crane |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954294A (en) * | 2016-05-13 | 2016-09-21 | 北京航空航天大学 | Sensor based real-time crack monitoring system and monitoring method thereof |
| CN106847055A (en) * | 2017-01-18 | 2017-06-13 | 山东省特种设备检验研究院泰安分院 | A kind of lifting machinery metal structure stress-strain test apparatus for demonstrating |
| CN106895884A (en) * | 2017-04-28 | 2017-06-27 | 太原重工股份有限公司 | Crane for steelworks use girder stress, system for detecting temperature |
| CN109145469A (en) * | 2018-08-29 | 2019-01-04 | 中国电建集团华东勘测设计研究院有限公司 | Offshore structure performance monitoring and O&M decision-making technique, apparatus and system |
| CN109052181A (en) * | 2018-10-31 | 2018-12-21 | 中船第九设计研究院工程有限公司 | A kind of shipbuilding gantry crane failure monitoring diagnostic system and method |
| CN109118383A (en) * | 2018-10-31 | 2019-01-01 | 中船第九设计研究院工程有限公司 | Shipbuilding production management system and method based on gate-type lifting operation conditions |
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Application publication date: 20141210 |