CA1168060A - Method and device for detecting changes in the mechanical state of the members of a structure implanted in the sea - Google Patents
Method and device for detecting changes in the mechanical state of the members of a structure implanted in the seaInfo
- Publication number
- CA1168060A CA1168060A CA000385489A CA385489A CA1168060A CA 1168060 A CA1168060 A CA 1168060A CA 000385489 A CA000385489 A CA 000385489A CA 385489 A CA385489 A CA 385489A CA 1168060 A CA1168060 A CA 1168060A
- Authority
- CA
- Canada
- Prior art keywords
- signals
- excitation
- pick
- members
- sea
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000005284 excitation Effects 0.000 claims abstract description 26
- 230000004044 response Effects 0.000 claims abstract description 25
- 230000008859 change Effects 0.000 claims abstract description 3
- 238000005192 partition Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims 1
- 230000006870 function Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 241001212789 Dynamis Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 206010001497 Agitation Diseases 0.000 description 1
- 101100391182 Dictyostelium discoideum forI gene Proteins 0.000 description 1
- 206010014405 Electrocution Diseases 0.000 description 1
- 241001214714 Niea Species 0.000 description 1
- 240000008881 Oenanthe javanica Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ZVQOOHYFBIDMTQ-UHFFFAOYSA-N [methyl(oxido){1-[6-(trifluoromethyl)pyridin-3-yl]ethyl}-lambda(6)-sulfanylidene]cyanamide Chemical compound N#CN=S(C)(=O)C(C)C1=CC=C(C(F)(F)F)N=C1 ZVQOOHYFBIDMTQ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QXAITBQSYVNQDR-UHFFFAOYSA-N amitraz Chemical compound C=1C=C(C)C=C(C)C=1N=CN(C)C=NC1=CC=C(C)C=C1C QXAITBQSYVNQDR-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- NQLVQOSNDJXLKG-UHFFFAOYSA-N prosulfocarb Chemical compound CCCN(CCC)C(=O)SCC1=CC=CC=C1 NQLVQOSNDJXLKG-UHFFFAOYSA-N 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Braking Arrangements (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8019883A FR2490344A1 (fr) | 1980-09-12 | 1980-09-12 | Procede et dispositif pour verifier l'etat mecanique d'une structure |
| FR8019.883 | 1980-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1168060A true CA1168060A (en) | 1984-05-29 |
Family
ID=9245949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000385489A Expired CA1168060A (en) | 1980-09-12 | 1981-09-09 | Method and device for detecting changes in the mechanical state of the members of a structure implanted in the sea |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4400980A (en:Method) |
| AU (1) | AU545435B2 (en:Method) |
| BR (1) | BR8105818A (en:Method) |
| CA (1) | CA1168060A (en:Method) |
| FR (1) | FR2490344A1 (en:Method) |
| GB (1) | GB2083913B (en:Method) |
| IT (1) | IT1144776B (en:Method) |
| MX (1) | MX152810A (en:Method) |
| NO (1) | NO156995C (en:Method) |
| OA (1) | OA06893A (en:Method) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4502329A (en) * | 1982-04-07 | 1985-03-05 | Mitsubishi Denki Kabushiki Kaisha | Method for checking insulative condition of insulated windings used in electrical appliances |
| DE3380939D1 (de) * | 1982-10-06 | 1990-01-11 | Welding Inst | Akustische feststellung von fehlstellen in strukturen. |
| GB8309030D0 (en) * | 1983-03-31 | 1983-05-11 | Cawley P | Testing of structures by impact |
| US4519245A (en) * | 1983-04-05 | 1985-05-28 | Evans Herbert M | Method and apparatus for the non-destructive testing of materials |
| US4522063A (en) * | 1983-09-16 | 1985-06-11 | T. D. Williamson, Inc. | Methods and apparatus for indicating selected physical parameters in a pipeline |
| GB2173310A (en) * | 1985-04-03 | 1986-10-08 | Univ Strathclyde | Testing of underwater structures by their vibration characteristic |
| US4702111A (en) * | 1986-04-01 | 1987-10-27 | American Energy Services, Inc. | Sonic wood testing apparatus and method |
| EP0351430B1 (en) * | 1986-08-28 | 1994-05-04 | Mitsui Engineering and Shipbuilding Co, Ltd. | Impact-type apparatus for inspecting structures |
| GB8814336D0 (en) * | 1988-06-16 | 1988-07-20 | British Petroleum Co Plc | Method for measuring property of pipeline |
| FR2657099B1 (fr) * | 1990-01-17 | 1994-02-25 | Etat Francais Lab Ponts Chaussee | Procede et dispositif pour controler le scellement d'un poteau. |
| DE4114268A1 (de) * | 1991-05-02 | 1992-11-12 | Kernforschungsz Karlsruhe | Verfahren zur ermittlung der groesse von parametern, welche die frequenz von eigenschwingungen von mikrostrukturen aendern |
| US5396799A (en) * | 1992-07-13 | 1995-03-14 | The United States Of America As Represented By The Secretary Of Agriculture | Method and apparatus for in situ evaluation of wooden members |
| GB2366382A (en) * | 2000-08-23 | 2002-03-06 | Mecon Ltd | Remote monitoring of structure condition |
| US8296083B2 (en) | 2007-02-22 | 2012-10-23 | Micro Motion, Inc. | Vibratory pipeline diagnostic system and method |
| WO2009012424A2 (en) * | 2007-07-19 | 2009-01-22 | Terralliance Technologies, Inc. | Seismic wave generating apparatus and method |
| CN105203282B (zh) * | 2015-09-18 | 2017-12-05 | 天津大学 | 局部流速增大倾角阶梯流海洋立管束涡激振动试验装置 |
| GB2543114A (en) * | 2016-03-04 | 2017-04-12 | Reece Innovation Centre Ltd | Determination of a physical condition of a pole-type structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3345861A (en) * | 1967-02-24 | 1967-10-10 | Charles A Heath | Acoustical testing method and apparatus |
| FR2214305A5 (en:Method) * | 1973-01-17 | 1974-08-09 | Ctre Rech Batiment Tp | |
| US4128011A (en) * | 1974-07-16 | 1978-12-05 | Savage Robert J | Investigation of the soundness of structures |
| US4147228A (en) * | 1976-10-07 | 1979-04-03 | Hydroacoustics Inc. | Methods and apparatus for the generation and transmission of seismic signals |
| US4231259A (en) * | 1978-08-11 | 1980-11-04 | Thiruvengadam Alagu P | Method and apparatus for non-destructive evaluation utilizing the internal friction damping (IFD) technique |
| US4284165A (en) * | 1979-12-28 | 1981-08-18 | Atlantic Richfield Company | Acoustic pulse generator |
-
1980
- 1980-09-12 FR FR8019883A patent/FR2490344A1/fr active Granted
-
1981
- 1981-08-27 AU AU74679/81A patent/AU545435B2/en not_active Ceased
- 1981-08-28 MX MX188932A patent/MX152810A/es unknown
- 1981-08-31 US US06/297,913 patent/US4400980A/en not_active Expired - Fee Related
- 1981-09-04 OA OA57487A patent/OA06893A/xx unknown
- 1981-09-09 CA CA000385489A patent/CA1168060A/en not_active Expired
- 1981-09-10 GB GB8127360A patent/GB2083913B/en not_active Expired
- 1981-09-11 BR BR8105818A patent/BR8105818A/pt unknown
- 1981-09-11 IT IT68197/81A patent/IT1144776B/it active
- 1981-09-11 NO NO813112A patent/NO156995C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MX152810A (es) | 1986-06-10 |
| NO156995C (no) | 1987-12-30 |
| NO156995B (no) | 1987-09-21 |
| OA06893A (fr) | 1983-04-30 |
| AU545435B2 (en) | 1985-07-11 |
| US4400980A (en) | 1983-08-30 |
| IT8168197A0 (it) | 1981-09-11 |
| IT1144776B (it) | 1986-10-29 |
| FR2490344A1 (fr) | 1982-03-19 |
| GB2083913A (en) | 1982-03-31 |
| FR2490344B1 (en:Method) | 1984-03-23 |
| NO813112L (no) | 1982-03-15 |
| AU7467981A (en) | 1982-03-18 |
| GB2083913B (en) | 1985-03-27 |
| BR8105818A (pt) | 1982-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |