CN208239002U - Ice load impact stress detection device - Google Patents
Ice load impact stress detection device Download PDFInfo
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- CN208239002U CN208239002U CN201820577682.6U CN201820577682U CN208239002U CN 208239002 U CN208239002 U CN 208239002U CN 201820577682 U CN201820577682 U CN 201820577682U CN 208239002 U CN208239002 U CN 208239002U
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- detection device
- dynamic strain
- stress
- packaging cartridge
- fixed plate
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Abstract
Disclose a kind of ice load impact stress detection device, including multiple dynamic strain indicators, fixed plate and data processing equipment.By the way that multiple dynamic strain indicators are set in fixed plate, detection obtains the stress being applied on the dynamic strain indicator, and is analyzed and handled the stress by data processing equipment.The utility model has the advantages of simple structure, easy for installation, and the automatic detection of ice load impact stress under adverse circumstances may be implemented, and provides data supporting for construction offshore foundation stake, has important meaning of preventing and reducing natural disasters.
Description
Technical field
The utility model relates to structure detection technical fields, and in particular to a kind of ice load impact stress detection device.
Background technique
China establishes a large amount of wind power generation stepped, anemometer towers at the East Sea, the South Sea.The offshore foundation stake of these region towers is held
The external dynamic load received has the impact of wind load, wave or seawater whirlpool.But China's recent years gradually plans in the north
Bohai and Yellow Seas regional construction Large Scale Oceanic Wind Power Generation field, can be born after the offshore foundation stake to ice period in these regions huge
The collision of berg will lead to foundation pile damage, or even collapse if the anti-ice load impact capacity of foundation pile is insufficient.And
Since the ice cube volume and movement speed in each region have very big randomness, therefore, it is difficult to assess it to be applied to offshore foundation
The range of the impact force of stake, so the basis with enough anti-ice load impact capacities effectively can not be provided for these regions
Stake, it is wind power generation stepped to construction to have buried security risk.
Utility model content
In view of this, the present invention provides a kind of ice load impact stress detection devices, may be implemented under adverse circumstances
The automatic detection of ice load impact stress provides data supporting for construction offshore foundation stake.
The utility model embodiment provides a kind of ice load impact stress detection device, comprising:
Fixed plate；
Multiple dynamic strain indicators with sealing device, are set in the fixed plate, for detecting stress；
Data processing equipment, for receiving and processing the stress.
Preferably, at least 5 groups of dynamic strain indicators are fixedly installed in the fixed plate；
Wherein, every group of dynamic strain indicator includes 2 and is mutually perpendicular to fixed dynamic strain indicator.
Preferably, the dynamic strain indicator includes:
Substrate；
Resistance strain gage is fixed in the substrate；
Amplification circuit module is connect with the resistance strain gage.
Preferably, the substrate is rectangle thin aluminum sheet.
Preferably, the substrate lateral stiffness is greater than longitudinal rigidity.
Preferably, the sealing device includes:
Packaging cartridge, the bottom of the packaging cartridge are provided with the protruding portion for fixing the sealing device；
Waterproof fibre pipe, for accommodating cable, one end of the waterproof fibre pipe is set in the packaging cartridge；
Waterproof connector is set to the top of the packaging cartridge, for fixing the waterproof fibre pipe.
Preferably, the dynamic strain indicator is fixed in the packaging cartridge by marine glue.
Preferably, the lateral stiffness of the packaging cartridge is greater than longitudinal rigidity.
Preferably, the amplification circuit module includes amplification circuit, reference voltage integrated circuit and voltage Transform Sets
At circuit.
Preferably, the amplification circuit is OP07DP amplification circuit, and the reference voltage integrated circuit is
ADR425BRZ reference voltage integrated circuit, the voltage converter ic are the integrated electricity of WRA1212S-3WR2 voltage conversion
Road.
The utility model provides a kind of ice load impact stress detection device, including multiple dynamic strain indicators, fixed plate
And data processing equipment.By the way that multiple dynamic strain indicators are set in fixed plate, detection obtains and is applied to the dynamic strain
Stress on instrument, and the stress is analyzed and handled by data processing equipment.The utility model has the advantages of simple structure, installation
It is convenient, the automatic detection of ice load impact stress under adverse circumstances may be implemented, provide data supporting for construction offshore foundation stake,
With important meaning of preventing and reducing natural disasters.
Detailed description of the invention
By referring to the drawings to the description of the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 is the arrangement schematic diagram of the dynamic strain indicator of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the dynamic strain indicator of the utility model embodiment.
Specific embodiment
The utility model is described below based on embodiment, but the utility model is not restricted to these implementations
Example.It is detailed to describe some specific detail sections below in the datail description of the utility model.To those skilled in the art
The utility model can also be understood completely in the description of part without these details for member.In order to avoid obscuring the utility model
Essence, there is no narrations in detail for well known method, process, process, element and circuit.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
In the description of the present invention, it should be understood that term " first ", " second " etc. are used for description purposes only,
It is not understood to indicate or imply relative importance.In addition, in the description of the present invention, unless otherwise indicated, it is " more
It is a " it is meant that two or more.
Unless otherwise clearly defined and limited, the terms such as term " installation ", " connected ", " connection ", " fixation " should be done extensively
Reason and good sense solution may be a detachable connection for example, it may be being fixedly connected, or integral；It can be mechanical connection, it can also be with
It is electrical connection；Can be directly connected, can also indirectly connected through an intermediary, can be connection inside two elements or
The interaction relationship of two elements, unless otherwise restricted clearly.For the ordinary skill in the art, Ke Yigen
The concrete meaning of above-mentioned term in the present invention is understood according to concrete condition.
Fig. 1-Fig. 2 is the ice load impact stress detection device schematic diagram of the present embodiment.As depicted in figs. 1 and 2, ice load
Impact stress detection device includes multiple dynamic strain indicators 1,2 (not shown) of data processing equipment and fixed plate 3.On basis
Four sides of stake are connected separately with a fixed plate 3, and multiple dynamic strain indicators 1 are then uniformly distributed in each fixed plate
On 3, instantaneous stress value when external impacts fixed plate 3 is obtained in order to equably detect, and then measure and acquire external force pair
The instantaneous stress value of foundation pile.The external force includes impact force caused by ice load.Dynamic strain indicator 1 can pass through cable 4
It connect and communicate or communicated by way of wireless transmission with data processing equipment 2.Dynamic strain indicator 1 will test
Impact stress value be sent to data processing equipment 2 and recorded and analyzed, data processing equipment 2 passes through the result after analysis
Optical fiber is sent to monitoring room, in order to make corresponding remedial measure in time, reduces personnel and material damage.Optionally, fixed
Plate 3 can be sheet metal, wooden boards or plastic plate etc., have certain shock resistance, can resist ice load punching
The impact stress hit.
It is respectively fixedly connected with one piece of fixed plate 3 in four, the outside of foundation pile side, then in each fixed plate 3 uniformly
The fixed multiple dynamic strain indicators 1 in ground can equably detect the instantaneous stress value of the ice load impact of four direction.In this reality
It applies in example, the fixed plate 3 can select 10 millimeters of steel plate, and the service life of steel plate is relatively long, and can pass through weldering
Equal plain modes are connect to connect with foundation pile.In the present embodiment, 5 groups of dynamic strain indicators are installed, every group dynamic in each fixed plate 3
State deformeter includes 2 and is mutually perpendicular to fixed dynamic strain indicator.Wherein one group of dynamic strain indicator is set to the centre of fixed plate
Position, remaining four groups of dynamic strain indicator is fixed in fixed plate in a symmetrical manner two-by-two, so that when external force is applied to
When in fixed plate, each dynamic strain indicator can equably detect suffered stress, as shown in Figure 1.
Dynamic strain indicator 1, which is primarily adapted for use in, carries out dynamic strain measurement to the random variation of structure and material, for detecting
Temporary impact stress.In the present embodiment, dynamic strain indicator 1 impacts institute by ice load in ice period for detecting offshore foundation stake
The stress value received.Therefore, dynamic strain indicator 1 is installed on the region that foundation pile is flooded by seawater, so dynamic strain indicator 1 must have
Standby good waterproof performance.In the present embodiment, the dynamic strain indicator 1 has sealing device 5, sealing device 5 and foundation pile
On fixed plate be fixedly connected.Sealing device 5 includes packaging cartridge 51, waterproof fibre pipe 52 and waterproof connector 53, such as Fig. 2 institute
Show.Dynamic strain indicator 1 is set in the packaging cartridge 51, and packaging cartridge 51 is fixed described dynamic by repeatedly gradually filling marine glue 54
In state deformeter 1.The packaging cartridge 51 is the circular cylindrical cavity with mounting seat, the bottom of the mounting seat, that is, packaging cartridge 51
The protruding portion of setting, for fixing the sealing device 5.Dynamic strain indicator 1 with sealing device 5 can be solid by protruding portion
Due on foundation pile, and then detect stress value of the foundation pile by ice load impact when.The transverse direction of the packaging cartridge 51 is just
Degree is very big and longitudinal rigidity very little, it is possible thereby to stretching easy to accomplish in the longitudinal direction and be laterally unlikely to deform.
In the present embodiment, packaging cartridge 21 is the lesser aluminium box of long axis rigidity.When ice load strikes packaging cartridge 51, envelope
Mounted box 51 generates deformation, drives the resistance strain gage 11 in packaging cartridge 51 to generate corresponding deformation, and deformation is converted into accordingly
Signal be transferred to data processing equipment 2 and be acquired and analyze.Data processing equipment 2 transmits each dynamic strain indicator 1
Signal carries out processing and acquires the instantaneous stress value of each dynamic strain indicator 1, and carries out analytical calculation and go out institute in predetermined amount of time
There is the maximum instantaneous stress value in dynamic strain indicator, and using this value as the ice load impact stress peak value in this period,
It carries out improving important data reference when the anti-ice load impact capacity design of foundation pile.
It is attached between dynamic strain indicator 1 and data processing equipment 2 by cable 4 to realize mutual communication.
Therefore when dynamic strain indicator 1 needs under water in use, also needing to protect cable 4.Cable 4 is set to underwater dedicated
In waterproof fibre pipe 52, the one end for the cable 4 connecting with dynamic strain indicator 1 and waterproof fibre pipe 52 are then passed through into packaging cartridge 51
The opening at top be set in packaging cartridge 51, finally by the fixed waterproof fibre pipe 52 of waterproof connector 53 and described in sealing
Opening.Waterproof connector of cable is commonly used a kind of interface unit in the power system.Mainly using product outdoors, in
Large-scale remote control equipment, ontology outdoors, the equipment of control system not on the body.
The dynamic strain indicator 1 (does not show including 11 (not shown) of resistance strain gage, amplification circuit module 12 in figure
Out).Resistance strain gage 11 and amplification circuit module 12 are set in sealing device 5, are carried out by sealing device 5 and fixed plate 3
It is fixedly connected, realizes sealing waterproof, the service life of dynamic strain indicator 1 can be improved.Resistance strain gage 11 can be by mechanical structure
The variation strained on part is converted to resistance change.The resistance change is passed through amplification circuit module 12 by dynamic strain indicator 1
It is ultimately converted to current signal and is sent to data processing equipment 2, data processing equipment 2 passes through the relationship meter between electric current and strain
Calculate the size and variation for obtaining strain signal.Resistance strain gage 11 can be by the constantan wire or nickel filament of Φ=0.02-0.05mm
It is coiled into palisade or is clipped in two layers of heat insulating lamella (substrate) at palisade with very thin metal foil corrosion and be made.Resistance strain gage 11
It is attached with amplification circuit module 12 by resistor disc lead, for carrying out signal amplification to faint dynamic strain signal,
Prevent faint dynamic strain signal from decaying during Distance Transmission farther out or by noise jamming, and influence data processing equipment 2 into
Row is effectively acquired and is analyzed.
In the present embodiment, resistance strain gage 11 is wide temperature range type full-bridge type resistance strain gage, and operating temperature range compares
Greatly, signal transmission is affected by temperature small, can significantly improve its sensitivity.Amplification circuit module 12 include amplification circuit,
Reference voltage integrated circuit and voltage converter ic.Amplification circuit, for the small-signal of input (to be referred to variation
Voltage, electric current etc.) be amplified to required for range value and with the consistent signal of original input signal changing rule, that is, carry out undistorted
Amplification.Voltage converter ic is for being converted into the voltage signal of input to meet the current signal of certain relationship, so
Current signal is transmitted afterwards, it is possible to reduce the shadow of influence of the conductor resistance to signal and transmission environment temperature change to signal
It rings, improves detection accuracy.In the present embodiment, the amplification circuit, reference voltage integrated circuit and voltage conversion are integrated
Circuit is wide temperature range type, i.e. the operating temperature range of integrated circuit is bigger, is affected by temperature small.The amplification circuit is
OP07DP amplification circuit, the reference voltage integrated circuit are ADR425BRZ reference voltage integrated circuit, and the voltage turns
Changing integrated circuit is WRA1212S-3WR2 voltage converter ic.
In the present embodiment, the specific mounting means of dynamic strain indicator 1 is as follows: choosing a rectangle thin aluminum sheet as base
13 (not shown) of bottom, 13 lateral stiffness of substrate is very big and longitudinal rigidity very little, so that substrate 13 is easy in the longitudinal direction
It stretches and is laterally unlikely to deform.Substrate 13 can more rapidly realize deformation when by longitudinal impact force as a result,
And then obtain accurate instantaneous stress value.Then resistance strain gage 11 is pasted and fixed on rectangle thin aluminum sheet by glue.
The substrate 13 being fixed together and resistance strain gage 11 and amplification circuit module 12 are placed in the seal box 51 of aluminum, so
Its signal-transmitting cable is protected using underwater dedicated flexible water fibre pipe 52 afterwards, is finally filled in packaging cartridge 51
Marine glue 54, in the fixed waterproof connector 53 of the top open part of packaging cartridge, waterproof connector 53 uses pressure resistant type waterproof connector, whole
Body structure is as shown in Figure 2.Waterproof casting glue is for the bonding of electronic component, sealing, encapsulating and coating protection.Casting glue is not
Belong to before solidification it is liquid, have mobility, glue viscosity according to the material of product, performance, the difference of production technology and
Difference.Casting glue is just able to achieve its use value after being fully cured, can be improved after solidification with the globality of strengthening electronic device
To the resistance of external shock, vibration；It improves and insulate between internal element, route, be conducive to device miniaturization, lightweight；It avoids
Element, route directly expose, and improve waterproof, the humidity resistance of device.In the present embodiment, selected resistance strain gage 11 is
120 ohm of water proof type foil gages of Japanese republicanism KYOWA.Selected casting glue is 703 marine glues.It then, will be above-mentioned
Multiple dynamic strain indicators 1 are fixed in a predetermined manner in fixed plate 3.Finally, by multiple fixations with dynamic strain indicator
Plate 3 is fixed on the corresponding position of foundation pile to be detected.
During frost, when ice load hits the sealing device 5 on the outside of dynamic strain indicator, shape occurs for 5 stress of sealing device
Become, and drive the substrate 13 that connect with resistance strain gage 11 deformation occurs, deformation is converted to resistance value change by resistance strain gage 11
Change, and then generate corresponding voltage signal, then by voltage converter ic by voltage signal be converted to current signal into
Row transmission.Data processing equipment receives and processes the current signal, and corresponding dynamic will be obtained after current signal processing and is answered
Become stress data when instrument is impacted by ice load.
The ice load that data processing equipment 2 detects all dynamic strain indicators 1 in the predetermined amount of time received rushes
It hits stress data to be calculated and analyzed, acquires maximum stress data detected by foundation pile in predetermined amount of time, with
The minimum value of the shock resistance stress met needed for stake based on this, so that foundation pile can withstand arbitrary ice load punching
It hits, improves the service life and safety coefficient of foundation pile.The maximum impact stress data obtained and the foundation pile prestored will be calculated
Shock resistance stress be compared, when the maximum stress data be greater than foundation pile shock resistance stress when, send alarm signal,
In order to find danger in time, foundation pile is protected and is reinforced.
The utility model provides a kind of ice load impact stress detection device, by being set to multiple dynamic strain indicators
In fixed plate, detection obtains the stress being applied on dynamic strain indicator, and is analyzed and handled institute by data processing equipment
State stress.The utility model has the advantages of simple structure, easy for installation, and the automatic inspection of ice load impact stress under adverse circumstances may be implemented
It surveys, provides data supporting for construction offshore foundation stake, there is important meaning of preventing and reducing natural disasters.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, for this field
For technical staff, the utility model can have various modifications and changes.All institutes within the spirit and principle of the utility model
Any modification, equivalent substitution, improvement and etc. of work, should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of ice load impact stress detection device, comprising:
Fixed plate；
Multiple dynamic strain indicators with sealing device, are set in the fixed plate, for detecting stress；
Data processing equipment, for receiving and processing the stress；
Wherein, the dynamic strain indicator includes:
Substrate；
Resistance strain gage is fixed in the substrate；
Amplification circuit module is connect with the resistance strain gage.
2. detection device according to claim 1, which is characterized in that be fixedly installed at least 5 groups in the fixed plate and move
State deformeter；
Wherein, every group of dynamic strain indicator includes 2 and is mutually perpendicular to fixed dynamic strain indicator.
3. detection device according to claim 1, which is characterized in that the substrate is rectangle thin aluminum sheet.
4. detection device according to claim 1, which is characterized in that the lateral stiffness of the substrate is greater than longitudinal rigidity.
5. detection device according to claim 1, which is characterized in that the sealing device includes:
Packaging cartridge, the bottom of the packaging cartridge are provided with the protruding portion for fixing the sealing device；
Waterproof fibre pipe, for accommodating cable, one end of the waterproof fibre pipe is set in the packaging cartridge；
Waterproof connector is set to the top of the packaging cartridge, for fixing the waterproof fibre pipe.
6. detection device according to claim 5, which is characterized in that the dynamic strain indicator is fixed on institute by marine glue
It states in packaging cartridge.
7. detection device according to claim 5, which is characterized in that the lateral stiffness of the packaging cartridge is greater than longitudinal rigid
Degree.
8. detection device according to claim 1, which is characterized in that the amplification circuit module includes the integrated electricity of amplification
Road, reference voltage integrated circuit and voltage converter ic.
9. detection device according to claim 8, which is characterized in that the amplification circuit is that OP07DP amplification is integrated
Circuit, the reference voltage integrated circuit are ADR425BRZ reference voltage integrated circuit, and the voltage converter ic is
WRA1212S-3WR2 voltage converter ic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820577682.6U CN208239002U (en) | 2018-04-20 | 2018-04-20 | Ice load impact stress detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820577682.6U CN208239002U (en) | 2018-04-20 | 2018-04-20 | Ice load impact stress detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208239002U true CN208239002U (en) | 2018-12-14 |
Family
ID=64585077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820577682.6U Expired - Fee Related CN208239002U (en) | 2018-04-20 | 2018-04-20 | Ice load impact stress detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208239002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990938A (en) * | 2019-04-09 | 2019-07-09 | 中水北方勘测设计研究有限责任公司 | A kind of device and its installation method measuring ice sheet pressure |
-
2018
- 2018-04-20 CN CN201820577682.6U patent/CN208239002U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990938A (en) * | 2019-04-09 | 2019-07-09 | 中水北方勘测设计研究有限责任公司 | A kind of device and its installation method measuring ice sheet pressure |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20200420 |
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| CF01 | Termination of patent right due to non-payment of annual fee |