CN204758256U - From lift -type platform spud leg wave current load factor testing experiment system - Google Patents
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- CN204758256U CN204758256U CN201520453831.4U CN201520453831U CN204758256U CN 204758256 U CN204758256 U CN 204758256U CN 201520453831 U CN201520453831 U CN 201520453831U CN 204758256 U CN204758256 U CN 204758256U
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Abstract
The utility model discloses a from lift -type platform spud leg wave current load factor testing experiment system, include: the experiment platform, including pond, wave maker, trailer, dynamometer link and the spud leg model that contains water, the wave maker is established and is made the ripples with the simulation wave in pond one side, establish in the pond spud leg model bottom, and the top is passed through the dynamometer link and is connected with the trailer to move under the effect of trailer with the simulation ocean current, the monitoring platform includes the stress and strain sensor that is used for collection and processing wave data signal's wave height tester, the speed acceleration sensor who is used for collection and processing ocean current data signal, torque sensor and is used for the collection and processing stress and strain signal, control platform includes to be used for controlling wave maker and trailer output's motor the control unit and being used for gathering, handle the data acquisition and the processing unit of analysis and demonstration in real time to coming from the signal of monitoring the platform.
Description
Technical field
The utility model relates to marine environment load test technology, especially a kind of self-elevating ocean platform spud leg wave loadings coefficient testing experimental system.
Background technology
Self-elevating ocean platform is in ocean physical environment complicated and changeable, the load effects such as wind, wave, ocean current and sea ice will be subject to, its Wave and current load (hereinafter referred to as wave loadings) directly act on platform simultaneously, the stability of platform and intensity are had an impact, it is the deciding factor in offshore structures stability and serviceable life, it is to the cost of engineering, degree of safety and life-span play very important effect, so answer emphasis to consider in the Design calcu-lation of ocean platform, wave loadings is on the impact of structure.In order to ensure the safety of platform under rough seas condition and transaction capabilities, the analysis and research that different marine environment condition affects platform must be carried out.
Self-elevating ocean platform spud leg wave current coefficient experiment purpose is the drag coefficient C drawn under self-elevating platform (SEP) operating environment
dwith inertial force coefficient C
m, to obtain the impact of environmental load on ocean platform, for Maintenance Design platform provides foundation.For the research method of marine structure wave loadings, theory calculate and model experiment two kinds generally can be divided into.The method of widespread use in engineering and in finite element analysis software is at present generally only consider the wave loadings of main chord member, quotes the empirical value of hydrodynamic force coefficient, although this method is simple and easy to do, and result of calculation out of true.Therefore system determines the drag coefficient C of spud leg entirety by experiment
dwith inertial force coefficient C
mmethod there is very important researching value.
Utility model content
The utility model provides a kind of self-elevating ocean platform spud leg wave loadings coefficient testing experimental system, for overcoming defect of the prior art, measures accurately, for predicting that the security performance of big machinery or material itself provides theoretical and Data support later.
The utility model provides a kind of self-elevating ocean platform spud leg wave loadings coefficient testing experimental system, comprising:
Experiment porch, comprise fill water pond, wave making machine, trailer, dynamometer link and spud leg model, described wave making machine is arranged on side, pond and makes ripple with wave simulated; Described spud leg model bottom is arranged in pond, and top is connected with described trailer by dynamometer link, and mobile to simulate ocean current under the effect of described trailer;
Monitoring platform, comprises for the wave height tester of acquisition and processing Wave Data signal, Velocity-acceleration sensor, torque sensor and the stress strain gauge for acquisition and processing ess-strain signal for acquisition and processing ocean current data-signal;
Parametric controller, comprises for the motor control unit of the output power of the output power and trailer controlling wave making machine with for carrying out Real-time Collection, the data acquisition of Treatment Analysis and display and processing unit to the signal coming from described monitoring platform.
Wherein, described trailer also comprises the steering mechanism that described spud leg model is rotated.
Preferably, described dynamometer link is provided with vertically two described stress strain gauges; Described wave height tester and Velocity-acceleration sensor are all arranged on described spud leg model top; Described torque sensor is arranged on described dynamometer link, and described in two between stress strain gauge.
Preferably, described dynamometer link two ends are fixedly connected with described trailer and described spud leg model respectively by flange.
The self-elevating ocean platform spud leg wave loadings coefficient testing experimental system that the utility model provides, in pond, ripple one wave simulated is made by wave making machine, spud leg model is driven to move to simulate ocean current with certain speed in pond by trailer, and the data-signal of the spud leg model response under the effect of above-mentioned analog wave stream loading is gathered by monitoring platform, finally by the control of control system to wave making machine motor and trailer output power of motor, controlling run is carried out to experiment porch, and Treatment Analysis is carried out to the data-signal of spud leg model response, under final display on data acquisition interface, the drag coefficient C under varying environment load can be drawn by experiment
dwith inertial force coefficient C
m, for predicting that the security performance of big machinery or material itself provides theoretical and Data support later, relative to the computing method of finite element analysis software, accuracy is higher.
Accompanying drawing explanation
The structural representation of the experimental system that Fig. 1 provides for the utility model embodiment;
The arrangement figure of each element of monitoring platform in the experimental system that Fig. 2 provides for the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of self-elevating ocean platform spud leg wave loadings coefficient testing experimental system, comprising:
Experiment porch, comprise fill water pond 1, wave making machine 2, trailer 3, dynamometer link 4 and spud leg model 5, wave making machine 2 is arranged on side, pond 1 and makes ripple with wave simulated; Be arranged in pond 1 bottom spud leg model 5, top is connected with trailer 3 by dynamometer link 4, and mobile to simulate ocean current under the effect of trailer 3; Wherein, trailer 3 also comprises steering mechanism's (not shown) that spud leg model is rotated.For convenience of dismounting, dynamometer link 4 two ends are fixedly connected with trailer 3 and spud leg model 5 respectively by flange.Dynamometer link 4 top is connected with fixed mount 42 by the first flange 41, and fixed mount 42 is connected with trailer 3.
Trailer 3 drives spud leg model 5 to move with certain speed, and simulation ocean current, wave making machine 2 makes ripple, wave simulated on bank, pond 1, and the steering mechanism on trailer 3 can rotate to adjust spud leg model 5 angle, to reach the effect of Reality simulation environmental load.
Monitoring platform, comprises for the wave height tester 6 of acquisition and processing Wave Data signal, Velocity-acceleration sensor 7, torque sensor 8 and the stress strain gauge 9 for acquisition and processing ess-strain signal for acquisition and processing ocean current data-signal;
Parametric controller, comprise the output power of output power for controlling wave making machine 2 and trailer 3 motor control unit and for carrying out Real-time Collection, the data acquisition of Treatment Analysis and display and processing unit to the signal coming from monitoring platform
Motor control unit can control the output power of motor of wave making machine and trailer thus under different capacity, produce the wave of different wave height and the ocean current of friction speed, thus the wave loadings under simulation different work environment; Collection real-time for the sensor signal at position each on experiment porch is entered computing machine by the software of internal system by data acquisition and processing unit, then by internal processes, the various types of sensor signals collected are done corresponding Treatment Analysis, be finally presented on data acquisition interface.Data collection type mainly comprises rate signal, ess-strain signal (as waveform, amplitude frequency diagram etc.).The drag coefficient C under varying environment load can be drawn by experiment
dwith inertial force coefficient C
m, for predicting that the security performance of big machinery or material itself provides theoretical and Data support later.
Preferably, sensing station is arranged as shown in Figure 2, dynamometer link 4 is provided with vertically two stress strain gauges 9; Wave height tester 6 and Velocity-acceleration sensor 7 are all arranged on spud leg model 5 top; Torque sensor 8 is arranged on dynamometer link 4, and between two stress strain gauges 9.
Vertical distance between two stress strain gauges 9 is Δ L, can be recorded the moment M 1, M2 of two point positions by stress strain gauge 9.Wave height tester 6 and for recording wave height during actual experiment, velocity amplitude, the accekeration of spud leg model 5 when Velocity-acceleration sensor 7 is for recording actual experiment.
Upper computer software system is according to formula
draw fluid force F, and draw out corresponding F-V image, extrapolate the drag coefficient under corresponding operating mode and inertial force coefficient, drag coefficient under drawing corresponding to experiment condition natural load environment according to similarity theory again and inertial force coefficient, for Maintenance Design platform provides theoretical and Data support.
The self-elevating ocean platform spud leg wave loadings coefficient testing experimental system that the utility model provides, in pond, ripple one wave simulated is made by wave making machine, spud leg model is driven to move to simulate ocean current with certain speed in pond by trailer, and the data-signal of the spud leg model response under the effect of above-mentioned analog wave stream loading is gathered by monitoring platform, finally by the control of control system to wave making machine motor and trailer output power of motor, controlling run is carried out to experiment porch, and Treatment Analysis is carried out to the data-signal of spud leg model response, under final display on data acquisition interface, the drag coefficient C under varying environment load can be drawn by experiment
dwith inertial force coefficient C
m, for predicting that the security performance of big machinery or material itself provides theoretical and Data support later, relative to the computing method of finite element analysis software, accuracy is higher.
Claims (4)
1. a self-elevating ocean platform spud leg wave loadings coefficient testing experimental system, is characterized in that, comprising:
Experiment porch, comprise fill water pond, wave making machine, trailer, dynamometer link and spud leg model, described wave making machine is arranged on side, pond and makes ripple with wave simulated; Described spud leg model bottom is arranged in pond, and top is connected with described trailer by dynamometer link, and mobile to simulate ocean current under the effect of described trailer;
Monitoring platform, comprises for the wave height tester of acquisition and processing Wave Data signal, Velocity-acceleration sensor, torque sensor and the stress strain gauge for acquisition and processing ess-strain signal for acquisition and processing ocean current data-signal;
Parametric controller, comprises for the motor control unit of the output power of the output power and trailer controlling wave making machine with for carrying out Real-time Collection, the data acquisition of Treatment Analysis and display and processing unit to the signal coming from described monitoring platform.
2. self-elevating ocean platform spud leg wave loadings coefficient testing experimental system according to claim 1, it is characterized in that, described trailer also comprises the steering mechanism that described spud leg model is rotated.
3. self-elevating ocean platform spud leg wave loadings coefficient testing experimental system according to claim 2, is characterized in that, described dynamometer link is provided with vertically two described stress strain gauges; Described wave height tester and Velocity-acceleration sensor are all arranged on described spud leg model top; Described torque sensor is arranged on described dynamometer link, and described in two between stress strain gauge.
4. self-elevating ocean platform spud leg wave loadings coefficient testing experimental system according to claim 3, it is characterized in that, described dynamometer link two ends are fixedly connected with described trailer and described spud leg model respectively by flange.
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|---|---|---|---|
| CN201520453831.4U CN204758256U (en) | 2015-06-29 | 2015-06-29 | From lift -type platform spud leg wave current load factor testing experiment system |
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| CN204758256U true CN204758256U (en) | 2015-11-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004506A (en) * | 2015-06-29 | 2015-10-28 | 中国海洋大学 | Self-elevating type offshore platform pile leg wave-current load coefficient test experimental system |
| CN113092060A (en) * | 2021-04-01 | 2021-07-09 | 大连理工大学 | Experimental device and method for ocean platform stress simulation test |
| CN115326355A (en) * | 2022-08-22 | 2022-11-11 | 烟台哈尔滨工程大学研究院 | Experimental device and experimental method for measuring wave current hydrodynamic force of deep-sea net cage |
-
2015
- 2015-06-29 CN CN201520453831.4U patent/CN204758256U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004506A (en) * | 2015-06-29 | 2015-10-28 | 中国海洋大学 | Self-elevating type offshore platform pile leg wave-current load coefficient test experimental system |
| CN113092060A (en) * | 2021-04-01 | 2021-07-09 | 大连理工大学 | Experimental device and method for ocean platform stress simulation test |
| CN115326355A (en) * | 2022-08-22 | 2022-11-11 | 烟台哈尔滨工程大学研究院 | Experimental device and experimental method for measuring wave current hydrodynamic force of deep-sea net cage |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20160629 |