CN108254176A - Structural member strength testing device and double K node structural member strength test methods - Google Patents
Structural member strength testing device and double K node structural member strength test methods Download PDFInfo
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- CN108254176A CN108254176A CN201810124868.0A CN201810124868A CN108254176A CN 108254176 A CN108254176 A CN 108254176A CN 201810124868 A CN201810124868 A CN 201810124868A CN 108254176 A CN108254176 A CN 108254176A
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- structural member
- members
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- load
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The present invention provides a kind of structural member strength testing device and double K node structural member strength test methods, is related to strength test equipment technical field.Structural member strength testing device includes：Rack；Connection component；Multi-load loaded member group, multi-load loaded member group are set to rack, and multi-load loaded member group includes multiple loaded members, and the loading direction part of multiple loaded members is identical or all different；Pressure sensor, the loaded members of each loading direction are combined with pressure sensor；Controller, controller can receive the feedback data of pressure sensor；Structural member is furnished with carrier, and controller control multi-load loaded member group carries out load loading, and be incremented by load by the stage to structural member, carrier simultaneously.Structural member strength testing device and double K node structural member strength test methods can be realized carries out strength test to double K node structural members, extremely has use value.
Description
Technical field
The present invention relates to strength test equipment technical field, in particular to a kind of structural member strength testing device and
Double K node structural member strength test methods.
Background technology
Dirigible is a kind of lighter-than-air craft, and difference lies in fly with propulsion and control with fire balloon maximum for it
The device of state.Dirigible is by huge streamlined hull, the gondola below hull, the tail surface for playing stability contorting and pushes away
It is formed into device.
The small buoyance lift gas of density ratio air (having hydrogen or helium) is filled in the air bag of hull to be made to fly so as to generating buoyancy
Ship goes up to the air.Gondola takes and loads cargo for personnel.Tail surface is for controlling and going as course, the stabilization of pitching.It is large-scale civilian winged
Ship can be also used for traffic, transport, entertain, relieve the people in stricken areas, movies-making, scientific experiment etc..For example, when natural calamity occurs, lead to
News, which are interrupted, can emit rapidly an aerostatics, pass through floating balloon and carry communication transponder, it will be able to when very short
The interior mobile communication completed to entire disaster area restores.
Ensure the stable structure of dirigible, it is necessary to some structural members for playing critical support node are used, and in this way
Structural member before formal come into operation, stringent strength test certainly will be carried out, it is safe to use to ensure.And in addition to dirigible with
Outside, also some other device instrument is also possible to use the connector of multiple directions, these all need to carry out strength test.
Existing test device is to rely on the load for operating 6 directions of hydraulic device loading step by step by different personnel,
Test data is obtained with the method manually calculated.There is following shortcomings for such mode：
By personnel's manual operations, synchronous difficulty is too big, it is impossible to realize test objective, have contingency, to operating personnel
Skill set requirements are higher, need to carry out complicated calculations.
Invention content
The purpose of the present invention is to provide a kind of structural member strength testing devices, and it can be used to Multidirectional connector
Structural member carries out strength test.
Another object of the present invention is to provide a kind of double K node structural member strength test methods, and it uses upper
Structural member strength testing device is stated, and part strength testing device realizes double K node knots to dirigible carbon fiber with this configuration
The strength test of component.
What the embodiment of the present invention was realized in：
The embodiment provides a kind of structural member strength testing device, including：
Rack；
Connection component；
Multi-load loaded member group, the multi-load loaded member group are set to the rack, the multi-load loading
Part group includes multiple loaded members, and the loading direction part of multiple loaded members is identical or all different；
Pressure sensor, the loaded members of each loading direction are combined with the pressure sensor；
Controller, the controller can receive the feedback data of the pressure sensor；
During test, structural member be furnished with carrier, the part loaded members by the connection component successively with the pressure
Force snesor, carrier connection, the part loaded members by the connection component successively with the pressure sensor, structure
Part connects, and the controller controls the multi-load loaded member group that structural member, carrier are carried out load loading, and pressed simultaneously
Stage is incremented by load.
In addition, the structural member strength testing device provided according to an embodiment of the invention, can also have following additional
Technical characteristic：
In the alternative embodiment of the present invention, the quantity of the loaded members is five, five loaded members plus
The extended line for carrying direction difference and loading direction is converged at one.
In the alternative embodiment of the present invention, the rack includes pedestal, the first support base, the second support base and tailstock；
One of them loaded members is set to one end of the pedestal, and the tailstock is set to other the one of pedestal
End, first support base are located between the loaded members and the tailstock and are used to support carrier, second support base
It is set on the pedestal between the loaded members and the tailstock and is used to support other loaded members.
In the alternative embodiment of the present invention, the loaded members are electric cylinders.
In the alternative embodiment of the present invention, the connection component includes casing and single pole bulb universal bearing, the pressure
Force snesor is connect with the output terminal of the loaded members, and the pressure sensor passes through the single pole bulb ten thousand with described sleeve pipe
It is connected to bearing, described sleeve pipe is used for connection member or carrier.
In the alternative embodiment of the present invention, described sleeve pipe is Nian Jie with structural member or carrier.
In the alternative embodiment of the present invention, the structural member strength testing device includes touch screen, the controller energy
Enough by the data transmission of the displacement of structural member, pressure and speed and it is shown in the touch screen.
In the alternative embodiment of the present invention, the controller is PLC controller.
The embodiment provides a kind of double K node structural member strength test methods, have used any of the above-described institute
The structural member strength testing device stated, the rack include pedestal, the first support base, the second support base and tailstock, this method packet
It includes：
Using carbon fiber pipe as carrier, double K node structural members are sheathed on carbon fiber pipe, carbon fiber pipe is positioned over first
Support base so that one of loaded members are resisted against the both ends of carbon fiber pipe with tailstock jointly；
The four additional K points connector of double K node structural members is fixed respectively with a loaded members；
Controller controls multiple loaded members to apply load to double K node structural members simultaneously and records data；
It is incremented by load by the stage and records each phase data, until double K node structural members is destroyed.
In the alternative embodiment of the present invention, each stage is incremented by 20% load.
The beneficial effects of the invention are as follows：
Structural member strength testing device, by rack, connection component, multi-load loaded member group, pressure sensor and
The cooperation of controller can realize the strength test to double K node structural members, in addition to double K node structural members, for there is other to connect
For the structural member in head quantity and direction, the adjusted design of rack can also be carried out based on above structure, then coordinated corresponding
The loaded members of quantity and pressure sensor are completed to test, applied widely and practical, extremely have use value.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structure diagram of structural member strength testing device that the embodiment of the present invention provides；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is the vertical view of Fig. 1.
Icon：100- structural member strength testing devices；10- racks；11- pedestals；The first support bases of 13-；15- second is supported
Seat；17- tailstocks；30- connection components；31- casings；33- single pole bulb universal bearings；50- loaded members；70- pressure sensors；
80- touch screens；101- carbon fiber pipes；The 102- dirigibles double K node structural members of carbon fiber.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiments obtained without creative efforts belong to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or position relationship of " outer " instruction of term are based on attached drawing
Shown orientation or position relationship or the invention product using when the orientation usually put or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second " etc.
It is only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；Can be
Mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
Embodiment
Fig. 1 to Fig. 4 is please referred to, present embodiments provides a kind of structural member strength testing device 100, including：
Rack 10；
Connection component 30；
Multi-load loaded member group, multi-load loaded member group are set to rack 10, and multi-load loaded member group includes more
A loaded members 50, the loading direction part of multiple loaded members 50 are identical or all different；
Pressure sensor 70, the loaded members 50 of each loading direction are combined with pressure sensor 70；
Controller, controller can receive the feedback data of pressure sensor 70；
During test, structural member be furnished with carrier, part loaded members 50 by connection component 30 successively with pressure sensor
70th, carrier connects, and part loaded members 50 are connect by connection component 30 with pressure sensor 70, structural member successively, controls
Device control multi-load loaded member group carries out load loading, and is incremented by load by the stage to structural member, carrier simultaneously.
Wherein, the loading direction of part loaded members 50 is identical, refers to same loading direction, can be superimposed and use some
Loaded members 50 apply demand to meet different load.All the scheme of different loading directions is referred to described below
Content.
Specifically, structural member strength testing device 100 can be used for the strength test of the structural member of multiple connectors, this implementation
Example is specifically addressed by dirigible for the double K node structural members 102 of carbon fiber.
In the present embodiment, the quantity of loaded members 50 is five, and the loading direction of five loaded members 50 is different and adds
The extended line for carrying direction is converged at one.
Specifically, rack 10 includes pedestal 11, the first support base 13, the second support base 15 and tailstock 17.The present embodiment
Steel construction in rack 10 is using 75 × 50 × 3 rectangular tubes.
One of loaded members 50 are set to one end of pedestal 11, and tailstock 17 is set to the other end of pedestal 11, the
One support base 13 is located between the loaded members 50 and tailstock 17 and is used to support carrier, and the second support base 15 is set to this and adds
On pedestal 11 between mount components 50 and tailstock 17 and it is used to support other loaded members 50.
In the present embodiment, loaded members 50 are electric cylinders.Electric cylinders will be watched by servo motor and ball screw collective effect
Taking the convert rotational motion of motor, its speed is controlled by the rotating speed of servo motor for the straight reciprocating motion of electric cylinders, stroke
It is determined by servo motor turnning circle, applies load and determined by the nominal torque of servo motor.The conventional specific calculating of industry is public
Formula is as follows：
F=(T*2*3.14*E*I/L)
F electric cylinders go out unit of force, KN；
T Motor torque units Nm；
E transmission efficiencies take (85%)；
I reduction ratio includes speed reducer and synchronous belt；
L screw lead units, MM；
V=(N*L/60*I)；
V screw speed units, MM/s；
N motor speed units, rev/min；
L screw lead units, MM；
I reduction ratio includes speed reducer and synchronous belt.
Loaded members 50 can also be oil cylinder it is this kind of can rectilinear direction carry out load application device, the present embodiment
It is preferred that electric cylinders, can generate greasy dirt to avoid testing ground in this way.
The connection component 30 of the present embodiment includes casing 31 and single pole bulb universal bearing 33, pressure sensor 70 and loading
The output terminal connection of component 50, pressure sensor 70 are connect with casing 31 by single pole bulb universal bearing 33, and casing 31 is used for
Connection member or carrier.
Further, casing 31 is Nian Jie with structural member or carrier.It is casing for the electric cylinders on pedestal 11
31 is Nian Jie with carrier, is that casing 31 is Nian Jie with structural member for the electric cylinders on the second support base 15.
Specifically, structural member strength testing device 100 includes touch screen 80, controller can be by the displacement of structural member, institute
By the data transmission of pressure and speed and it is shown in touch screen 80.
It is that controller is PLC controller in more detail.Framework of PLC controller etc. is referred to the prior art, PLC
Controller can in order to rated load is set and pass through program correct data automatically with reach experiment loading purpose.On touch screen 80
Debugging button can be set, for adjusting Test condition manually.PLC controller can be with mating communication device, by data transmission
To external reception equipment, in order to remote observation data, communication device and external reception equipment are referred to the prior art, this
Place does not make improvements, repeats no more.
Having used double K node structural member strength test methods of the structural member strength testing device 100 is：
It is carrier with carbon fiber pipe 101, double K node structural members is sheathed on carbon fiber pipe 101, by carbon fiber pipe 101
It is positioned over the first support base 13 so that one of loaded members 50 are resisted against the both ends of carbon fiber pipe 101 with tailstock 17 jointly；
The four additional K points connector of double K node structural members is fixed respectively with a loaded members 50；
Controller controls multiple loaded members 50 to apply load to double K node structural members simultaneously and records data；
It is incremented by load by the stage and records each phase data, until double K node structural members is destroyed.
Wherein, each stage can be with 1%, 5%, 10%, 15%, 20%, 25%, 30%, 40%, 50% etc.,
Scheme selected by this programme is incremented by with 20%.Double K node structural member strength test methods are to fly for referred to above
The test of the ship double K node structural members 102 of carbon fiber, it is certainly, double other than dirigible is with the double K node structural members 102 of carbon fiber
K node structural member strength test method is also used as the strength test of double K node structural members of other purposes, and mixes corresponding
Carrier implement to test.It should be understood that when structural member is the structural member of the connector of other quantity, double K node knots
Component strength test method can apply mechanically.
Specifically, being gradually incremented by principle by 20% to double K node structural members using the displacement of electric cylinders applies load.Pass through pressure
Actually applied load is fed back to PLC controller by force snesor 70, and PLC controller will adjust control according to the numerical value received
Servo motor moves, and when servo motor reaches the rated load of test requirements document, servo motor stops operating loading, considerable at this time
It examines and records the data such as the current displacement shown in touch screen 80, current pressure, present speed.When one wheel of completion loads and records
After test data, then the load test of next round is carried out, utilization gradually incremental loading principle, until double K node structural members are broken
Until bad.
Pass through the design of rack 10 so that for the dirigible double K node structural members 102 of carbon fiber six different directions all
Rate of loading can be synchronized, avoids the asynchronous problem of loading during different personnel's operations of the prior art, and with electricity
Cylinder is loaded members 50 so that the amplitude coordination of loading is standardized, and control is more accurate.PLC controller and the cooperation of touch screen 80,
So that corresponding data can be presented out in time, it can the double K node structural members 102 of whole intuitively observation dirigible carbon fiber
Deformation situation in the case where applying different loads.So being not only the reduction of personnel amount, the technical need of personnel is also reduced,
It only needs the double K node structural members 102 of dirigible carbon fiber being installed in place, then one-key start can start strength test.
The present invention structural member strength testing device 100, by rack 10, connection component 30, multi-load loaded member group,
The cooperation of pressure sensor 70 and controller can realize the strength test to double K node structural members, in addition to double K node knots
Component for having the structural member in other connector quantity and direction, can also carry out rack 10 based on above structure
Adjusted design, then loaded members 50 and the pressure sensor 70 of respective numbers is coordinated to complete to test, test method can cover
All it is to synchronize to apply load and record data by the stage with double K node structural member strength test methods, it is applied widely and real
With extremely having use value.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of structural member strength testing device, which is characterized in that including：
Rack；
Connection component；
Multi-load loaded member group, the multi-load loaded member group are set to the rack, the multi-load loaded member group
Including multiple loaded members, the loading direction part of multiple loaded members is identical or all different；
Pressure sensor, the loaded members of each loading direction are combined with the pressure sensor；
Controller, the controller can receive the feedback data of the pressure sensor；
During test, structural member is furnished with carrier, and the part loaded members are passed by the connection component with the pressure successively
Sensor, carrier connection, the part loaded members are connected by the connection component with the pressure sensor, structural member successively
It connects, the controller controls the multi-load loaded member group to carry out load loading to structural member, carrier simultaneously, and by the stage
It is incremented by load.
2. structural member strength testing device according to claim 1, which is characterized in that the quantity of the loaded members is five
A, the loading direction of five loaded members is different and the extended line of loading direction is converged at one.
3. structural member strength testing device according to claim 2, which is characterized in that the rack includes pedestal, first
Support base, the second support base and tailstock；
One of them loaded members is set to one end of the pedestal, and the tailstock is set to the other end of pedestal, institute
It states the first support base to be located between the loaded members and the tailstock and be used to support carrier, second support base is set to
On the pedestal between the loaded members and the tailstock and it is used to support other loaded members.
4. according to claim 1-3 any one of them structural member strength testing devices, which is characterized in that the loaded members are
Electric cylinders.
5. structural member strength testing device according to claim 1, which is characterized in that the connection component include casing and
Single pole bulb universal bearing, the pressure sensor are connect with the output terminal of the loaded members, the pressure sensor and institute
It states casing to connect by the single pole bulb universal bearing, described sleeve pipe is used for connection member or carrier.
6. structural member strength testing device according to claim 5, which is characterized in that described sleeve pipe and structural member are held
Loading is bonded.
7. structural member strength testing device according to claim 1, which is characterized in that the structural member strength testing device
Including touch screen, the controller by the data transmission of the displacement of structural member, pressure and speed and can be shown in institute
State touch screen.
8. the structural member strength testing device according to claim 1 or 7, which is characterized in that the controller is controlled for PLC
Device.
9. a kind of double K node structural member strength test methods, which is characterized in that used claim 1-8 any one of them
Structural member strength testing device, the rack include pedestal, the first support base, the second support base and tailstock, this method and include：
Using carbon fiber pipe as carrier, double K node structural members are sheathed on carbon fiber pipe, carbon fiber pipe is positioned over the first support
Seat so that one of loaded members are resisted against the both ends of carbon fiber pipe with tailstock jointly；
The four additional K points connector of double K node structural members is fixed respectively with a loaded members；
Controller controls multiple loaded members to apply load to double K node structural members simultaneously and records data；
It is incremented by load by the stage and records each phase data, until double K node structural members is destroyed.
10. double K node structural member strength test methods according to claim 9, which is characterized in that each stage is incremented by
20% load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810124868.0A CN108254176A (en) | 2018-02-07 | 2018-02-07 | Structural member strength testing device and double K node structural member strength test methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810124868.0A CN108254176A (en) | 2018-02-07 | 2018-02-07 | Structural member strength testing device and double K node structural member strength test methods |
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| Publication Number | Publication Date |
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| CN108254176A true CN108254176A (en) | 2018-07-06 |
Family
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| CN201810124868.0A Pending CN108254176A (en) | 2018-02-07 | 2018-02-07 | Structural member strength testing device and double K node structural member strength test methods |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985987A (en) * | 2021-02-08 | 2021-06-18 | 清华大学 | Multidirectional static force loading device |
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