CN107014541B - Based on the modified grade generation hinged beam model cable force measurement method of linear model - Google Patents
Based on the modified grade generation hinged beam model cable force measurement method of linear model Download PDFInfo
- Publication number
- CN107014541B CN107014541B CN201710253358.9A CN201710253358A CN107014541B CN 107014541 B CN107014541 B CN 107014541B CN 201710253358 A CN201710253358 A CN 201710253358A CN 107014541 B CN107014541 B CN 107014541B
- Authority
- CN
- China
- Prior art keywords
- mrow
- msub
- msup
- drag
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000691 measurement method Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 34
- 238000012417 linear regression Methods 0.000 claims abstract description 11
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 5
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 18
- 238000005553 drilling Methods 0.000 abstract description 8
- 239000004956 Amodel Substances 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 206010068052 Mosaicism Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003765 sex chromosome Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/042—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands by measuring vibrational characteristics of the flexible member
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention is based on modified wait of linear model to belong to technical field of civil engineering for hinged beam model cable force measurement method, and in particular to a kind of vibratory drilling method Cable force measuring method；This method conventionally obtains and k rank vibration frequencies fikCorresponding linear regression coeffficient Ak, on this basis, utilize AkIt is calculated, obtains the coefficient of stability suitable for each rankIt recyclesIn the generation such as calculating, hinged beam model corrected length La, and then the generation hinged beam model such as utilize to correct length LaSolve the rope force value of drag-line；The present invention not only solves L by establishingaModel, introduce average thought, improve measurement accuracy, solves the problems, such as to wait generation hinged beam method for the cable force measurement precision of tackline is low, error is big, and eliminate the relation with exponent number, it solves in the vibratory drilling method Cable force measuring method based on linear model, the confinement problems that can not be gathered due to some exponent number frequencies and cause this method that can not apply.
Description
Technical field
The present invention is based on modified wait of linear model to belong to civil engineering technology neck for hinged beam model cable force measurement method
A kind of domain, and in particular to vibratory drilling method Cable force measuring method.
Background technology
Drag-line is the main bearing member of cable system bridge, and the transmission and distribution of power are carried out to cable system bridge.Cable
Power is not only one of important parameter of cable system Bridge Design, and is bridge construction control and assessment bridge normal use shape
The important indicator of state.As it can be seen that the accuracy of cable force measurement is most important.
In order to improve the measurement accuracy of Cable power, there is waiting generation hinged beam method, such as Harbin Institute of Technology
Postgraduate's thesis that Xiao can rush《The experimental study of cable force vibration method measurement》And the vibratory drilling method drag-line based on linear model
Cable force measurement method (the patent of invention of Application No. 201510357998.5《Vibratory drilling method Cable power based on linear model is surveyed
Amount method》).In both approaches, core formula is as follows：
Wherein, T represents Cable power (N), and m represents drag-line line density (kg/m), LakRepresent that drag-line k first order modes are corresponding etc.
For hinged girder model length (m), fkRepresent the k ranks natural frequency of vibration (Hz), EI represents rope section bending stiffness (Nm2), and π represents circle
Frequency.
Wherein, T represents Cable power (N), AnAnd BnIt is linear regression coeffficient, fikRepresent the k ranks natural frequency of vibration (Hz).
Although these two kinds of methods can improve Cable power measurement accuracy, however, in practical engineering application, run into
Problems with：
Firstth, etc. generation hinged beam method has very high measurement accuracy for the Suo Li of long drag-line, but for tackline
Cable force measurement precision is low, error is big；
Secondth, vibratory drilling method Cable force measuring method based on linear model, since the linear model of each rank is different
Want to obtain higher measurement accuracy, it is necessary to establish the corresponding linear model of every rank.And in in-site measurement, since field condition is answered
It is miscellaneous, it is difficult to ensure that each order frequency is collected, and a few order frequencies for only collecting, linear model can be caused in reality
There is limitation in the engineer application of border.
The content of the invention
To solve the above-mentioned problems, generation hinged beam model Suo Li is waited based on linear model is modified the invention discloses one kind
Measuring method, this method the generation hinged beam method such as can not only solve and be asked for the cable force measurement precision of tackline is low, error is big
Topic, and the limitation that the vibratory drilling method Cable force measuring method based on linear model can not be measured due to some frequencies can be solved
Sex chromosome mosaicism.
The object of the present invention is achieved like this：
Based on the modified grade generation hinged beam model cable force measurement method of linear model, comprise the following steps：
Step a, in construction process, m grades of Suo Li T are applied to drag-line1、T2、…、Tm, drag-line to be measured is demarcated respectively
Suo Li TiWith with Suo Li TiCorresponding n ranks vibration frequency fi1、fi2、…、finData；
Step b, according to equation below, it is fitted TiOnThe frontal regression coefficient of anchoring：
Wherein, AkAnd BkIt represents and k rank vibration frequencies fikCorresponding linear regression coeffficient；
Step c, according to equation below, rank linear regression coeffficient A each to drag-linekCalculated with corresponding exponent number k, obtain with
The coefficient of stability unrelated exponent number k
Step d, utilizeAccording to equation below, in the generation such as calculating, hinged beam model corrected length La：
Wherein, m represents drag-line line density (kg/m)；
Step e, subsequently run and reinforce the stage in bridge, apply T' pairs of arbitrary number of level Suo Li T', measurement and power rope to drag-line
The n rank vibration frequencies f answered1', f2' ..., fn'；
Step f, according to equation below, the vibration frequency f obtained using step e1', f2' ..., fn', obtain revised n
A Suo Li T1, T2..., Tn：
Step g, according to equation below, the step f Suo Li obtained is taken into average calculating, obtain the rope force value of drag-line：
Obtained T is the rope force value of drag-line.
Advantageous effect：
The present invention passes through to each rank linear regression coeffficient A of drag-linekIt is calculated, obtains the coefficient of stability A suitable for each rank,
A is recycled, wait unrelated with exponent number k is calculated and corrects length L for hinged beam modela, not only L is solved by establishingaModel, draw
Average thought is entered, has improved measurement accuracy, it is low, by mistake for the cable force measurement precision of tackline the generation hinged beam method such as to solve
The problem of difference is big, and the relation with exponent number is eliminated, solve the vibratory drilling method Cable force measuring method based on linear model
In, the confinement problems that can not gather due to some exponent number frequencies and cause this method that can not apply.
Description of the drawings
Fig. 1 is the schematic cross-section of PES7-109 type drag-lines.
Fig. 2 is inhaul cable vibration auto-power spectrum spectrogram.
Specific embodiment
The specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings.
Specific implementation profit one
The present embodiment is hinged beam model cable force measurement method based on linear model modified grade generation, comprises the following steps：
Step a, in construction process, m grades of Suo Li T are applied to drag-line1、T2、…、Tm, drag-line to be measured is demarcated respectively
Suo Li TiWith with Suo Li TiCorresponding n ranks vibration frequency fi1、fi2、…、finData；
Step b, according to equation below, it is fitted TiOnThe frontal regression coefficient of anchoring：
Wherein, AkAnd BkIt represents and k rank vibration frequencies fikCorresponding linear regression coeffficient；
Step c, according to equation below, rank linear regression coeffficient A each to drag-linekCalculated with corresponding exponent number k, obtain with
The coefficient of stability unrelated exponent number k
Step d, utilizeAccording to equation below, in the generation such as calculating, hinged beam model corrected length La：
Wherein, m represents drag-line line density (kg/m)；
Step e, subsequently run and reinforce the stage in bridge, apply T' pairs of arbitrary number of level Suo Li T', measurement and power rope to drag-line
The n rank vibration frequencies f answered1', f2' ..., fn'；
Step f, according to equation below, the vibration frequency f obtained using step e1', f2' ..., fn', obtain revised n
A Suo Li T1, T2..., Tn：
Step g, according to equation below, the step f Suo Li obtained is taken into average calculating, obtain the rope force value of drag-line：
Obtained T is the rope force value of drag-line.
Specific implementation profit two
The present embodiment waits generation hinged beam model cable force measurement method based on linear model is modified, according to specific implementation profit
One flow carries out actual measurement to PES7-109 types drag-line, and the schematic cross-section of the drag-line is as shown in Figure 1.The skill of the drag-line
Art parameter is as follows：Rope long l=24.41m, line density m=32.9kg/m, sectional area A=4195mm2, limit Suo Li Tlim=
7055kN, conversion bending stiffness EI=280.08kNm.
This method is as follows：
Step a, in construction process, 2 grades of Suo Li T are applied to drag-line1And T2, pass through inhaul cable vibration as shown in Figure 2
Auto-power spectrum spectrogram demarcates the Suo Li T of drag-line to be measured respectivelyiWith with Suo Li TiCorresponding n ranks vibration frequency fi1、fi2、…、fin
Data, as shown in table 1：
1 Suo Li of table and vibration frequency tables of data
The frequency data of frequency in table 1 are become to square of frequency, as shown in table 2：
2 Suo Li of table and vibration frequency square tables of data
Step b, according to equation below, it is fitted TiOnThe frontal regression coefficient of anchoring：
Wherein, AkAnd BkIt represents and k rank vibration frequencies fikCorresponding linear regression coeffficient；
For only there are two calibration Suo Lishi, i.e., only T1And T2When, above-mentioned formula can be simplified, be：
Obtained AkResult of calculation is as shown in table 3：
3 linear model coefficients of table
Step c, according to equation below, rank linear regression coeffficient A each to drag-linekCalculated with corresponding exponent number k, obtain with
The coefficient of stability unrelated exponent number k
Wherein, Akk2Result of calculation it is as shown in table 4：
Table 4Akk2Result of calculation table
Data from table 4 can obtainResult of calculation be 74.51；
Step d, utilizeAccording to equation below, in the generation such as calculating, hinged beam model corrected length La：
Wherein, m represents drag-line line density (kg/m)；
In the present embodiment, according to line density m=32.9kg/m, L can be obtaineda=23.8m；
Step e, subsequently run and reinforce the stage in bridge, apply T' pairs of arbitrary number of level Suo Li T', measurement and power rope to drag-line
The n rank vibration frequencies f answered1', f2' ..., fn'；
In the present embodiment, the Suo Li T' of application are 1101kN, measure n ranks vibration frequency such as table 5 corresponding with power rope T'
It is shown：
The calibration to be measured of table 5 and vibration frequency tables of data
Step f, according to equation below, the vibration frequency f obtained using step e1', f2' ..., fn', obtain revised n
A Suo Li T1, T2..., Tn：
The rope calibration of table 4 T33 order frequency Suo Li calculated values of lower selection and average
For the present embodiment, the three rope force value acquired are respectively 1087kN, 1099kN and 1126kN.
Step g, according to equation below, the step f Suo Li obtained is taken into average calculating, obtain the rope force value of drag-line：
In the present embodiment, T 1104kN.
Finally, the Suo Li result of calculations 1104kN acquired according to the method for the present invention and theoretical value 1101kN is compared,
Relative error is only 0.26%, the Suo Li result of calculations and actual value deviation very little which obtains, can
For actual cable force measurement.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (1)
1. based on the modified grade generation hinged beam model cable force measurement method of linear model, which is characterized in that comprise the following steps：
Step a, in construction process, mm grades of stretching force T are applied to drag-line1、T2、...、Tmm, drag-line to be measured is demarcated respectively
Suo Li TiWith with Suo Li TiCorresponding n ranks vibration frequency fi1、fi2、...、finData；
Step b, according to equation below, it is fitted TiOnThe frontal regression coefficient of anchoring：
<mrow>
<msub>
<mi>T</mi>
<mi>i</mi>
</msub>
<mo>=</mo>
<msub>
<mi>A</mi>
<mi>k</mi>
</msub>
<msubsup>
<mi>f</mi>
<mrow>
<mi>i</mi>
<mi>k</mi>
</mrow>
<mn>2</mn>
</msubsup>
<mo>+</mo>
<msub>
<mi>B</mi>
<mi>k</mi>
</msub>
</mrow>
Wherein, AkAnd BkIt represents and k rank vibration frequencies fikCorresponding linear regression coeffficient；
Step c, according to equation below, rank linear regression coeffficient A each to drag-linekIt is calculated, is obtained and exponent number k with corresponding exponent number k
The unrelated coefficient of stability
<mrow>
<mover>
<mrow>
<msub>
<mi>A</mi>
<mi>n</mi>
</msub>
<mo>&times;</mo>
<msup>
<mi>n</mi>
<mn>2</mn>
</msup>
</mrow>
<mo>&OverBar;</mo>
</mover>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mi>n</mi>
</mfrac>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>k</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>n</mi>
</munderover>
<msub>
<mi>A</mi>
<mi>k</mi>
</msub>
<msup>
<mi>k</mi>
<mn>2</mn>
</msup>
</mrow>
Step d, utilizeAccording to equation below, in the generation such as calculating, hinged beam model corrected length La：
<mrow>
<msubsup>
<mi>L</mi>
<mi>a</mi>
<mn>2</mn>
</msubsup>
<mo>=</mo>
<mfrac>
<mover>
<mrow>
<msub>
<mi>A</mi>
<mi>n</mi>
</msub>
<mo>&times;</mo>
<msup>
<mi>n</mi>
<mn>2</mn>
</msup>
</mrow>
<mo>&OverBar;</mo>
</mover>
<mrow>
<mn>4</mn>
<mi>m</mi>
</mrow>
</mfrac>
</mrow>
Wherein, m represents drag-line line density kg/m；
Step e, subsequently run and reinforce the stage in bridge, arbitrary number of level Suo Li T' are applied to drag-line, measure n corresponding with Suo Li T'
Rank vibration frequency f1', f2' ..., fn'；
Step f, according to equation below, the vibration frequency f obtained using step e1', f2' ..., fn', obtain revised n
Suo Li T1, T2..., Tn：
<mrow>
<msub>
<mi>T</mi>
<mi>k</mi>
</msub>
<mo>=</mo>
<mn>4</mn>
<msubsup>
<mi>mL</mi>
<mi>a</mi>
<mn>2</mn>
</msubsup>
<mfrac>
<msup>
<mrow>
<mo>(</mo>
<msup>
<msub>
<mi>f</mi>
<mi>k</mi>
</msub>
<mo>&prime;</mo>
</msup>
<mo>)</mo>
</mrow>
<mn>2</mn>
</msup>
<msup>
<mi>k</mi>
<mn>2</mn>
</msup>
</mfrac>
<mo>-</mo>
<mfrac>
<mrow>
<msup>
<mi>k</mi>
<mn>2</mn>
</msup>
<msup>
<mi>&pi;</mi>
<mn>2</mn>
</msup>
</mrow>
<msubsup>
<mi>L</mi>
<mi>a</mi>
<mn>2</mn>
</msubsup>
</mfrac>
<mi>E</mi>
<mi>I</mi>
</mrow>
Wherein, EI represents rope section bending stiffness Nm2；
Step g, according to equation below, the step f Suo Li obtained is taken into average calculating, obtain the rope force value of drag-line：
<mrow>
<mi>T</mi>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mi>n</mi>
</mfrac>
<munderover>
<mo>&Sigma;</mo>
<mrow>
<mi>k</mi>
<mo>=</mo>
<mn>1</mn>
</mrow>
<mi>n</mi>
</munderover>
<msub>
<mi>T</mi>
<mi>k</mi>
</msub>
</mrow>
Obtained T is the rope force value of drag-line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253358.9A CN107014541B (en) | 2017-04-18 | 2017-04-18 | Based on the modified grade generation hinged beam model cable force measurement method of linear model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253358.9A CN107014541B (en) | 2017-04-18 | 2017-04-18 | Based on the modified grade generation hinged beam model cable force measurement method of linear model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107014541A CN107014541A (en) | 2017-08-04 |
| CN107014541B true CN107014541B (en) | 2018-06-05 |
Family
ID=59447017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710253358.9A Active CN107014541B (en) | 2017-04-18 | 2017-04-18 | Based on the modified grade generation hinged beam model cable force measurement method of linear model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107014541B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462359A (en) * | 2017-08-07 | 2017-12-12 | 哈尔滨开博科技有限公司 | It is a kind of that generation be hinged beam model cable force measurement method is waited based on parameter transmission |
| CN107588879B (en) * | 2017-09-11 | 2018-07-24 | 哈尔滨工业大学 | Rope supports the equal for hinged girder interpolation model method for building up of bridge cable group's cable force vibration method measurement |
| CN107860502B (en) * | 2017-11-02 | 2019-02-12 | 哈尔滨开博科技有限公司 | A kind of vibratory drilling method cable force measurement method for considering damper and influencing |
| CN108151943B (en) * | 2017-12-22 | 2020-08-25 | 哈尔滨开博科技有限公司 | Frequency method cable force measuring method based on parameter transmission |
| CN108197378B (en) * | 2017-12-28 | 2019-01-29 | 哈尔滨工业大学 | Based on the drag-line section flexural rigidity identification method than string model |
| CN113848009A (en) * | 2021-09-22 | 2021-12-28 | 浙江浙交检测技术有限公司 | Detection method and detection equipment for constant-load cable force of arch bridge suspender |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09101289A (en) * | 1995-08-03 | 1997-04-15 | Kobe Steel Ltd | Method for measuring flexural rigidity and tension of tensioned cable |
| CN101504324A (en) * | 2009-02-26 | 2009-08-12 | 南京工业大学 | Intelligent distinguishing method and system for inhaul cable operation state |
| CN101762347A (en) * | 2009-12-31 | 2010-06-30 | 北京市建筑工程研究院 | Method for measuring rope force of multi-span steel stay rope by using half-wave method |
| CN101893497A (en) * | 2010-06-13 | 2010-11-24 | 东南大学 | Out-of-plane frequency method for testing cable force of planar cable rod system |
| CN101900620A (en) * | 2010-06-23 | 2010-12-01 | 华南理工大学 | Method for identifying variable boundary cable force of medium or long cable |
| CN102735386A (en) * | 2012-07-14 | 2012-10-17 | 福州大学 | Bending stiffness-considered numerical computation method for stay cable forces |
| CN105043631A (en) * | 2015-06-25 | 2015-11-11 | 哈尔滨大金工程试验检测有限公司 | Stay cable stay force measuring method based on vibration method using linear model |
| CN105181200A (en) * | 2015-05-29 | 2015-12-23 | 上海同济建设工程质量检测站 | Accurate algorithm for measuring cable force by using frequency method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328739B (en) * | 2014-10-29 | 2016-09-14 | 上海建工集团股份有限公司 | The cable tension test of tied arch bridge hanger rod and construction control method thereof |
-
2017
- 2017-04-18 CN CN201710253358.9A patent/CN107014541B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09101289A (en) * | 1995-08-03 | 1997-04-15 | Kobe Steel Ltd | Method for measuring flexural rigidity and tension of tensioned cable |
| CN101504324A (en) * | 2009-02-26 | 2009-08-12 | 南京工业大学 | Intelligent distinguishing method and system for inhaul cable operation state |
| CN101762347A (en) * | 2009-12-31 | 2010-06-30 | 北京市建筑工程研究院 | Method for measuring rope force of multi-span steel stay rope by using half-wave method |
| CN101893497A (en) * | 2010-06-13 | 2010-11-24 | 东南大学 | Out-of-plane frequency method for testing cable force of planar cable rod system |
| CN101900620A (en) * | 2010-06-23 | 2010-12-01 | 华南理工大学 | Method for identifying variable boundary cable force of medium or long cable |
| CN102735386A (en) * | 2012-07-14 | 2012-10-17 | 福州大学 | Bending stiffness-considered numerical computation method for stay cable forces |
| CN105181200A (en) * | 2015-05-29 | 2015-12-23 | 上海同济建设工程质量检测站 | Accurate algorithm for measuring cable force by using frequency method |
| CN105043631A (en) * | 2015-06-25 | 2015-11-11 | 哈尔滨大金工程试验检测有限公司 | Stay cable stay force measuring method based on vibration method using linear model |
Non-Patent Citations (2)
| Title |
|---|
| 短吊索索力测试研究;向桂兵等;《山西建筑》;20090410(第11期);第126-127页 * |
| 考虑边界弹性约束的索力动力检测理论与试验研究;李国强等;《建筑结构学报》;20091005(第05期);第220-225页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107014541A (en) | 2017-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107014541B (en) | Based on the modified grade generation hinged beam model cable force measurement method of linear model | |
| CN105043631B (en) | Vibratory drilling method Cable force measuring method based on linear model | |
| CN106932134B (en) | Based on the Cable force measuring method for waiting generation hinged beam model | |
| CN101762347B (en) | Method for measuring rope force of multi-span steel stay rope by using half-wave method | |
| CN106052743B (en) | A kind of sensor mass of assessing influences frequency response function the method for size | |
| CN107271093B (en) | Full-bridge Cable force measuring method based on load calibration | |
| CN101893497A (en) | Out-of-plane frequency method for testing cable force of planar cable rod system | |
| CN106096178A (en) | A kind of bridge cable flexural rigidity identification method | |
| CN104933254A (en) | Vibration-method cable force measurement method of improved linear model on the basis of frequency ratio offset coefficient | |
| CN107588879B (en) | Rope supports the equal for hinged girder interpolation model method for building up of bridge cable group's cable force vibration method measurement | |
| CN109858112A (en) | Numerical inversion analysis method based on structural stress monitoring result | |
| CN107742019A (en) | A kind of simplified calculation method of FRP tendons beams of concrete mechanical property | |
| DE102005042820A1 (en) | Method for determining the expansion distribution of components | |
| CN107462359A (en) | It is a kind of that generation be hinged beam model cable force measurement method is waited based on parameter transmission | |
| CN107421672A (en) | A kind of weighting Suo Li computational methods that peak is searched based on vibration frequency universe | |
| JP2008297870A (en) | Underground construction management system and underground construction management method | |
| CN108763667A (en) | Deep camber curve steel-concrete combined box beam bridge simplifies design method | |
| CN116186829B (en) | Method and device for constructing composite lining calculation model and terminal equipment | |
| CN104978464A (en) | Cable force measuring method for suspender cable of suspension bridge | |
| CN107192491B (en) | Waiting for hinged girder cable force measurement method based on load increment calibration | |
| Khanna et al. | Mechanical vibration of visco-elastic plate with thickness variation | |
| CN103399978A (en) | Bridge flexural rigidity identification method | |
| CN109766637A (en) | Bridge crane structural optimization based on reliability method based on Krigng agent model | |
| CN107451336B (en) | Robust design method for optimizing product performance change boundary | |
| CN108151943B (en) | Frequency method cable force measuring method based on parameter transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231012 Address after: Room 1002, Unit 4, Building 10, East Zone, Zhaofeng Jiayuan, Shahe Town, Changping District, Beijing 102200 Patentee after: Li Dajun Address before: No. 101, 1st Floor, Harbin Institute of Technology Science Park Building, No. 434 Youyou Street, Nangang District, Harbin City, Heilongjiang Province, 150000 Patentee before: HARBIN KAIBO TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240103 Address after: Room 1411, No. 2, Houzhuang Section, Zhaosi Road, Zhangzhen, Shunyi District, Beijing, 101300 Patentee after: Hualu Youdao (Beijing) Information Technology Co.,Ltd. Address before: Room 1002, Unit 4, Building 10, East Zone, Zhaofeng Jiayuan, Shahe Town, Changping District, Beijing 102200 Patentee before: Li Dajun |