CN203657959U - Measuring system of internal wave horizontal force - Google Patents
Measuring system of internal wave horizontal force Download PDFInfo
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- CN203657959U CN203657959U CN201320685922.1U CN201320685922U CN203657959U CN 203657959 U CN203657959 U CN 203657959U CN 201320685922 U CN201320685922 U CN 201320685922U CN 203657959 U CN203657959 U CN 203657959U
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- stiff end
- upper sleeve
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Abstract
The utility model belongs to the field of ocean internal wave observation, and relates to a system which can measure horizontal acting forces of internal wave on a cylindrical structure and acting force distribution along depth. The system comprises a stationary fixture, equal diameter sleeves, and a force measuring system. The stationary fixture comprises a front fixture and a rear fixing end. Clamping portions of the front fixture and the rear fixing end are camber surfaces. The sleeves comprise an upper sleeve and a lower sleeve. Exradius of the sleeve is consistent with camber surface curvature radius of the clamping portion of the stationary fixture. After the clamping portions of the front fixture and the rear fixing end clamp the upper sleeve, the clamping portions are fixed by screws. The lower sleeve is connected and fixed with a fixed base. The force measuring system is disposed between the upper sleeve and the lower sleeve. The measuring system of internal wave horizontal forces can adjust positions through adjusting clamping positions of the stationary fixture, so as to achieve objectives of measuring horizontal acting forces of the internal waves on a cylinder model in different depths, and investigating internal wave horizontal force distribution along depth.
Description
Technical field
The utility model belongs to internal wave of ocean observation field, and being specifically related to one can be in interior ripple tank, in measuring ripple to cylindrical structure thing horizontal applied force and acting force the system along depth profile.
Background technology
Internal wave of ocean is the one fluctuation that occurs in the seawater inside of density stabilized stratification, and its wave amplitude is large, and wavelength is long, contains energy huge, forms burst horizontal shear stream, causes larger horizontal flow speed, to causing grave danger in ocean engineering structure wherein.At China's South China Sea, the frequent interior ripple activity occurring has become affects the influence factor that is only second to typhoon in oil and gas exploitation engineering.Once marine structure is destroyed, except causing huge economic loss, will cause great environmental pollution and secondary disaster.
Cylindrical structure is version basic in ocean engineering structure, its hydrodynamic performance under interior ripple effect be concern ocean engineering structure can be under interior ripple effect the important factor in order of safe and stable operation, be also the problem that offshore engineering structure needs special concern in the time of design.
Due to the difficult predictability of internal wave of ocean and the restriction of existing measurement means, be difficult to by marine structure the actual loading situation under interior ripple effect measure, especially internal wave of ocean to works horizontal applied force the distribution situation along the degree of depth.Therefore in the middle of at present for Nei Bo and the interactional research of works, numerical simulation and model test become research Main Means.But in the cylinder model test at present under ripple effect, or other interior wave pattern test, mainly probed into interior ripple act on elongated right cylinder pile or on other models entirety action effect, do not refine to local pressure, both interior ripple action effect was along the distribution of the degree of depth.
Utility model content
The purpose of this utility model is to overcome the difficulty on wave measurement in laboratory, actual loading situation in conjunction with cylinder model in interior ripple effect, designed and a kind ofly can carry out interior ripple horizontal force and the measuring system along depth profile thereof, in measuring ripple to the horizontal applied force of cylinder model with and along the distribution of the degree of depth.
For achieving the above object, the technical solution adopted in the utility model is: the measuring system of interior ripple horizontal force, comprise stationary fixture, equal diameter sleeve and dynamometric system, and described stationary fixture comprises front fixture, rear portion stiff end; The clamping part of front fixture and rear portion stiff end is cambered surface, and it can coincide with sleeve; Sleeve comprises upper sleeve and lower sleeve portion, and the cambered surface radius-of-curvature of the exradius of sleeve and stationary fixture clamping part matches; After the clamping part clamping upper sleeve of front fixture, rear portion stiff end, be screwed; Lower sleeve portion and firm banking are connected and fixed; Dynamometric system is arranged between upper sleeve and lower sleeve portion.
Described dynamometric system mainly comprises top stiff end, sensor, bottom stiff end, cylinder model; The diameter of top stiff end is identical with upper sleeve internal diameter, is nested in upper sleeve inside, and the joint of connected sensor is arranged at the bottom of top stiff end, is screwed with sensor; The bottom of sensor and bottom stiff end are screwed; The diameter of bottom stiff end is identical with cylinder model internal diameter, is nested in cylinder model inside.
Described lower sleeve portion can be made different length, is used in conjunction with upper sleeve.
Through verification experimental verification, the measuring system of interior ripple horizontal force of the present utility model can regulate dynamometric system present position by the clip position that regulates stationary fixture, reach and measure the horizontal applied force of ripple to cylinder model in different depth place, probe into the object of interior ripple horizontal applied force along depth profile.
Brief description of the drawings
Fig. 1 is the structural representation of the measuring system of interior ripple horizontal force of the present utility model;
Fig. 2 is the structural representation of dynamometric system in Fig. 1.
Embodiment
As shown in Figure 1, the measuring system of interior ripple horizontal force, comprises stationary fixture, equal diameter sleeve and dynamometric system, and stationary fixture comprises front fixture 5, rear portion stiff end 6; The clamping part of front fixture 5 and rear portion stiff end 6 is cambered surface, and it can coincide with sleeve; Sleeve comprises upper sleeve 4 and lower sleeve portion 2, and the cambered surface radius-of-curvature of the exradius of sleeve and stationary fixture clamping part matches; After the clamping part clamping upper sleeve 4 of front fixture 5, rear portion stiff end 6, front fixture 5 and rear portion stiff end 6 are fixed together with screw, thereby by fixing upper sleeve 4; Lower sleeve portion 2 is connected and fixed with firm banking 1; Dynamometric system is arranged between upper sleeve 4 and lower sleeve portion 2.
Dynamometric system mainly comprises top stiff end 8, sensor 9, bottom stiff end 10, cylinder model 11; The diameter of top stiff end 8 is identical with upper sleeve 4 internal diameters, is nested in upper sleeve 4 inside, and the joint of connecting sensor 9 is arranged at the bottom of top stiff end 8, is screwed with sensor 9; The bottom of sensor 9 and bottom stiff end 10 are screwed; The diameter of bottom stiff end 10 is identical with the internal diameter of cylinder model 11, is nested in cylinder model 11 inside.
The reserved length of upper sleeve 4, so that adjust the sensor degree of depth of living in; Lower sleeve portion 2 is prepared several groups of different lengths as required, is used in conjunction with upper sleeve.
When in laboratory, internal ripple is measured, equipment is installed and method is implemented to carry out according to the following steps:
1, rear portion stiff end 6 is positioned over to certain altitude place, interior ripple tank top and fixes, will measure the degree of depth of interior ripple horizontal force according to test, determine the length of lower sleeve portion 2, and firm banking 1 is fixed on to bottom of gullet.
2, bottom stiff end 10 is nested in cylinder model 11, and sensor 9 and bottom stiff end 10 are screwed.Use the same method and fix top stiff end 8 and upper sleeve 4, then sensor 9 tops and top stiff end 8 are screwed.Be that upper sleeve 4 is connected by sensor 9 with cylinder model 11, the suffered interior ripple horizontal force of cylinder model 11 is delivered on sensor.The external dynamic resistance strain instrument of sensor.Note keeping cylinder model and top stiff end to leave certain gap.Make it can rediscover flow field, do not impact right cylinder is stressed again.
3, upper sleeve 4 and the cylinder model 11 that links on it are fixed on rear portion stiff end 6 by front fixture 5, and regulate the cylinder model degree of depth of living in by adjusting screw, make cylinder model be positioned at lower sleeve portion 2 directly over, and leave certain gap between the two, make it can rediscover flow field, do not impact right cylinder is stressed again.
4, system install after in tank water filling make ripple, carry out surveying work, by the object of ripple horizontal applied force in regulating the clip position of upper sleeve 4 and the lower sleeve portion 2 of conversion different length to reach to measure on different depth place cylinder model.
In whole system, because measured acting force is more small, in the process of sensor installation, to handle with care, and keep the vertical state of cylinder model and sensor, prevent sensor overload.
Claims (3)
1. the measuring system of interior ripple horizontal force, is characterized in that: comprise stationary fixture, equal diameter sleeve and dynamometric system; Described stationary fixture comprises front fixture, rear portion stiff end; The clamping part of front fixture and rear portion stiff end is cambered surface, and it can coincide with sleeve; Sleeve comprises upper sleeve and lower sleeve portion, and the cambered surface radius-of-curvature of the exradius of sleeve and stationary fixture clamping part matches; After the clamping part clamping upper sleeve of front fixture, rear portion stiff end, be screwed; Lower sleeve portion and firm banking are connected and fixed; Dynamometric system is arranged between upper sleeve and lower sleeve portion.
2. the measuring system of interior ripple horizontal force according to claim 1, is characterized in that: described dynamometric system mainly comprises top stiff end, sensor, bottom stiff end, cylinder model; The diameter of top stiff end is identical with upper sleeve internal diameter, is nested in upper sleeve inside, and the joint of connected sensor is arranged at the bottom of top stiff end, is screwed with sensor; The bottom of sensor and bottom stiff end are screwed; The diameter of bottom stiff end is identical with cylinder model internal diameter, is nested in cylinder model inside.
3. the measuring system of interior ripple horizontal force according to claim 1 and 2, is characterized in that: described lower sleeve portion can be made different length, is used in conjunction with upper sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685922.1U CN203657959U (en) | 2013-11-01 | 2013-11-01 | Measuring system of internal wave horizontal force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685922.1U CN203657959U (en) | 2013-11-01 | 2013-11-01 | Measuring system of internal wave horizontal force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657959U true CN203657959U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320685922.1U Expired - Fee Related CN203657959U (en) | 2013-11-01 | 2013-11-01 | Measuring system of internal wave horizontal force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218931A (en) * | 2017-05-23 | 2017-09-29 | 广东贝达海洋科学有限公司 | A kind of internal wave of ocean early warning system and method based on online monitoring data |
| CN111275678A (en) * | 2020-01-17 | 2020-06-12 | 山东科技大学 | System and method for measuring displacement of elongated structure under action of internal waves |
-
2013
- 2013-11-01 CN CN201320685922.1U patent/CN203657959U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218931A (en) * | 2017-05-23 | 2017-09-29 | 广东贝达海洋科学有限公司 | A kind of internal wave of ocean early warning system and method based on online monitoring data |
| CN107218931B (en) * | 2017-05-23 | 2019-09-13 | 广东贝达海洋科学有限公司 | A kind of internal wave of ocean early warning system and method based on online monitoring data |
| CN111275678A (en) * | 2020-01-17 | 2020-06-12 | 山东科技大学 | System and method for measuring displacement of elongated structure under action of internal waves |
| CN111275678B (en) * | 2020-01-17 | 2023-09-29 | 山东科技大学 | System and method for measuring displacement of slender structure under action of internal wave |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20161101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |