CN109855829A - Dynamic power machine blade vibration characteristic research experiment device - Google Patents
Dynamic power machine blade vibration characteristic research experiment device Download PDFInfo
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- CN109855829A CN109855829A CN201811594572.1A CN201811594572A CN109855829A CN 109855829 A CN109855829 A CN 109855829A CN 201811594572 A CN201811594572 A CN 201811594572A CN 109855829 A CN109855829 A CN 109855829A
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Abstract
The present invention relates to experimental provision technical fields, are related to a kind of experimental apparatus in prismatic blade inherent characteristic field, specially a kind of for studying the research experiment device of prismatic blade intrinsic frequency and Mode Shape characteristic.Experimental piece support experimental piece support of the invention is bolted loaded in support platform；Magnetic stand is by magnetic-adsorption on testpieces support；It leads dry type flat-nose pliers and is fastened by bolts part and be connected with testpieces support；Dry type flat-nose pliers is led by changing the fixed experiment blade of clamp opening；The bottom of piezoelectric actuator, which is connected through a screw thread, to be fixed on magnetic stand, and top is connected by crossover sub with force snesor；Force snesor is adsorbed on the root of experiment blade by magnet block thereon；Magnet block on acceleration transducer is by magnetic-adsorption at the blade tip of experiment blade.Technical solution of the present invention solves the problems, such as that ad hoc analysis prismatic blade inherent characteristic engineering test platform in the prior art and experimental method are less in the presence of having a single function, obtaining experimental data source.
Description
Technical field
The present invention relates to experimental provision technical fields, are related to a kind of experimental apparatus in prismatic blade inherent characteristic field, specifically
To be a kind of for studying the research experiment device of prismatic blade intrinsic frequency and Mode Shape characteristic.
Background technique
Blade is one of main parts sizes of rotating machineries such as aero-engine, gas turbine, plays conversion at work
The effect of energy.And prismatic blade is blade one of the most common type form, structure is simple, superior performance and easily manufactured.Currently,
Prismatic blade inherent characteristic analyzes the theoretical research for having had more system, has also had in terms of technology of numerical simulation more mature
Research method, but prismatic blade intrinsic frequency and mode formation specificity analysis technology also need further to study in terms of experiment.
Exist at present for ad hoc analysis prismatic blade inherent characteristic engineering test platform and experimental method and has a single function, obtains in fact
Test the problems such as data source is less.
Dedicated prismatic blade inherent characteristic analytical technology test platform is developed for the intrinsic frequency and Mode Shape of blade
Research and the exploitation of new product be of great significance.
For it is above-mentioned the problems of in the prior art, a kind of novel dynamic power machine blade vibration characteristic of researching and designing
Research experiment device, can be provided for the research of prismatic blade free vibration mechanism, the research of prismatic blade forced vibration mechanism test according to
According to.
Summary of the invention
According to existing ad hoc analysis prismatic blade inherent characteristic engineering test platform set forth above and experimental method, there are functions
Technical problem single, acquisition experimental data source is less, and a kind of dynamic power machine blade vibration characteristic research experiment device is provided.
To realize that the research to research, prismatic blade forced vibration mechanism for prismatic blade free vibration mechanism provides the mesh of test basis
's.
The technological means that the present invention uses is as follows:
A kind of dynamic power machine blade vibration characteristic research experiment device includes: support platform, experimental piece support, magnetic power meter
Seat, piezoelectric actuator, acceleration transducer, force snesor and lead dry type flat-nose pliers；Experimental piece support is by supporting plane and branch
The L-type structure of vertical plate composition is supportted, experimental piece support is bolted loaded in support platform；Magnetic stand passes through magnetic-adsorption
On testpieces support；It leads dry type flat-nose pliers and is fastened by bolts part and be connected with testpieces support；Dry type flat-nose pliers is led to pass through
Change the fixed experiment blade of clamp opening；The bottom of piezoelectric actuator, which is connected through a screw thread, to be fixed on magnetic stand, and top is logical
Crossover sub is crossed to be connected with force snesor；Force snesor is adsorbed on the root of experiment blade by magnet block thereon；Add
Magnet block on velocity sensor is by magnetic-adsorption at the blade tip of experiment blade.
Further, it is evenly equipped with the threaded hole of standard on the table top of support platform, is easily installed and regulation experiment part support
Position.
Further, it experimental piece support and leads dry type flat-nose pliers all there is vertical adjustable groove type through-hole, and pass through
The two is connected and fixed by bolt fastener, and is conveniently adjusted the position for leading the experiment blade of dry type flat-nose pliers clamping.
Further, the center of force snesor, piezoelectric actuator and magnetic stand is in the same vertical plane.
The assembling process of this experimental provision is as follows:
Completion experimental piece main part installation first, i.e. experimental piece support lead dry type flat-nose pliers and test the installation of blade,
Then experimental piece main part is fixed by bolts in support platform；By force snesor, crossover sub, piezoelectric actuator and
Magnetic stand 3 is connected through a screw thread form and is sequentially connected, and first force snesor is adsorbed onto below experiment blade root, is fixed
Behind position, magnetic stand is adsorbed on experimental piece support；Acceleration transducer 7 is adsorbed onto experiment blade and blade by magnet block
The upper surface of point.
The principle and usage mode of this experimental provision are as follows:
The exciting force that vertical direction can be applied to experiment blade by piezoelectric actuator, is passed by force snesor and acceleration
Sensor can get the size and acceleration characteristic for the exciting force being applied on experiment blade；It is applied on experiment blade by changing
The size and mode of exciting force can get the different Vibration Condition of experiment blade.
When doing free vibration experiment: giving experiment one pulse excitation of blade by piezoelectric actuator, passed by acceleration
Sensor or the form that color sand is placed on experiment blade, the intrinsic frequency and Mode Shape of identification and lecture experiment blade.
When doing forced-vibration experimentation: giving the exciting force of experiment blade certain frequency and amplitude by piezoelectric actuator, lead to
It crosses acceleration transducer and obtains vibration signal, extract the vibration performances such as amplitude-frequency characteristic.
Compared with the prior art, the invention has the advantages that compact-sized, manufacture easy to process is easily installed maintenance, measurement
The data precision is high, safe and reliable to operation, does the research of infrastest suitable for extending to scientific research department and colleges and universities.
To sum up, the ad hoc analysis prismatic blade that can solve in prior art presence that applies the technical scheme of the present invention is inherently special
Property engineering test platform and experimental method exist have a single function, obtain the problems such as experimental data source is less.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is schematic structural view of the invention.
In figure: 1, support platform 2, experimental piece support 3, magnetic stand 4, piezoelectric actuator 5, crossover sub 6, reality
It tests blade 7, acceleration transducer 8, force snesor 9, bolt fastener 10, lead dry type flat-nose pliers.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.It is real to the description of at least one exemplary embodiment below
It is merely illustrative on border, never as to the present invention and its application or any restrictions used.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be clear that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.Technology known for person of ordinary skill in the relevant, side
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention: the noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under its device or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
As shown, including: that support is flat the present invention provides a kind of dynamic power machine blade vibration characteristic research experiment device
Platform 1, experimental piece support 2, magnetic stand 3, piezoelectric actuator 4, acceleration transducer 7, force snesor 8 and lead dry type flat-nose pliers
10；The L-type structure that experimental piece support 2 is made of supporting plane and supporting vertical plate, experimental piece support 2, which is bolted, to be loaded on
In support platform 1；Magnetic stand 3 is by magnetic-adsorption on testpieces support 2；It leads dry type flat-nose pliers 10 and is fastened by bolts part
9 are connected with testpieces support 2；Dry type flat-nose pliers 10 is led by changing the fixed experiment blade 6 of clamp opening；Piezoelectric actuator 4
Bottom be connected through a screw thread and be fixed on magnetic stand 3, top is connected by crossover sub 5 with force snesor 8；Power sensing
Device 8 is adsorbed on the root of experiment blade 6 by magnet block thereon；Magnet block on acceleration transducer 7 is inhaled by magnetic force
It is attached at the blade tip of experiment blade 6.
It is evenly equipped with the threaded hole of standard on the table top of support platform 1, is easily installed the position with regulation experiment part support 2.
It experimental piece support 2 and leads dry type flat-nose pliers 10 all there is vertical adjustable groove type through-hole, and is tight by bolt
The two is connected and fixed by firmware 9, and is conveniently adjusted the position for leading the experiment blade 6 of the clamping of dry type flat-nose pliers 10.
The center of force snesor 8, piezoelectric actuator 4 and magnetic stand 3 is in the same vertical plane.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (4)
1. a kind of dynamic power machine blade vibration characteristic research experiment device, which is characterized in that the experimental provision includes: support
Platform (1), experimental piece support (2), magnetic stand (3), piezoelectric actuator (4), acceleration transducer (7), force snesor (8) and
Lead dry type flat-nose pliers (10)；
The L-type structure that the experimental piece support (2) is made of supporting plane and supporting vertical plate, experimental piece support (2) pass through
Bolt is fixed loaded on support platform (1)；
The magnetic stand (3) is by magnetic-adsorption on testpieces support (2)；
It is described lead dry type flat-nose pliers (10) and be fastened by bolts part (9) be connected with testpieces support (2)；
Described leads dry type flat-nose pliers (10) by changing fixed experiment blade (6) of clamp opening；
The bottom of the piezoelectric actuator (4), which is connected through a screw thread, to be fixed on magnetic stand (3), and top passes through crossover sub
(5) it is connected with force snesor (8)；
The force snesor (8) is adsorbed on the root of experiment blade (6) by magnet block thereon；
Magnet block on the acceleration transducer (7) is by magnetic-adsorption at the blade tip of experiment blade (6).
2. dynamic power machine blade vibration characteristic research experiment device according to claim 1, which is characterized in that the branch
The threaded hole for being evenly equipped with standard on the table top of platform (1) is supportted, the position with regulation experiment part support (2) is easily installed.
3. dynamic power machine blade vibration characteristic research experiment device according to claim 1, which is characterized in that the reality
Testing part support (2) and leading dry type flat-nose pliers (10) all has vertical adjustable groove type through-hole, and is fastened by bolts part (9)
The two is connected and fixed, and is conveniently adjusted the position for leading the experiment blade (6) of dry type flat-nose pliers (10) clamping.
4. dynamic power machine blade vibration characteristic research experiment device according to claim 1, which is characterized in that the power
The center of sensor (8), piezoelectric actuator (4) and magnetic stand (3) is in the same vertical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811594572.1A CN109855829A (en) | 2018-12-25 | 2018-12-25 | Dynamic power machine blade vibration characteristic research experiment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811594572.1A CN109855829A (en) | 2018-12-25 | 2018-12-25 | Dynamic power machine blade vibration characteristic research experiment device |
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| CN109855829A true CN109855829A (en) | 2019-06-07 |
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| CN201811594572.1A Pending CN109855829A (en) | 2018-12-25 | 2018-12-25 | Dynamic power machine blade vibration characteristic research experiment device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473933A (en) * | 2020-04-27 | 2020-07-31 | 上海海事大学 | Multifunctional blade and rotor test bed |
| CN112427875A (en) * | 2021-01-28 | 2021-03-02 | 上海精骊电子技术有限公司 | Clamping device of net-opening machine |
| CN114152398A (en) * | 2021-12-02 | 2022-03-08 | 成都市鸿侠科技有限责任公司 | Measuring device and measuring method for natural frequency of aircraft engine blade |
| CN114166336A (en) * | 2021-12-02 | 2022-03-11 | 成都市鸿侠科技有限责任公司 | Intelligent airplane generator blade frequency measuring tool and machining process thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473933A (en) * | 2020-04-27 | 2020-07-31 | 上海海事大学 | Multifunctional blade and rotor test bed |
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| CN112427875A (en) * | 2021-01-28 | 2021-03-02 | 上海精骊电子技术有限公司 | Clamping device of net-opening machine |
| CN114152398A (en) * | 2021-12-02 | 2022-03-08 | 成都市鸿侠科技有限责任公司 | Measuring device and measuring method for natural frequency of aircraft engine blade |
| CN114166336A (en) * | 2021-12-02 | 2022-03-11 | 成都市鸿侠科技有限责任公司 | Intelligent airplane generator blade frequency measuring tool and machining process thereof |
| CN114152398B (en) * | 2021-12-02 | 2023-10-27 | 成都市鸿侠科技有限责任公司 | Device and method for measuring natural frequency of aircraft engine blade |
| CN114166336B (en) * | 2021-12-02 | 2024-04-05 | 成都市鸿侠科技有限责任公司 | Intelligent aircraft generator blade frequency measurement tool and processing technology thereof |
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