CN201811829U - Exciting force generation device - Google Patents
Exciting force generation device Download PDFInfo
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- CN201811829U CN201811829U CN 201020509918 CN201020509918U CN201811829U CN 201811829 U CN201811829 U CN 201811829U CN 201020509918 CN201020509918 CN 201020509918 CN 201020509918 U CN201020509918 U CN 201020509918U CN 201811829 U CN201811829 U CN 201811829U
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- exciting force
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- motor
- base
- exciting
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Abstract
The utility model relates to an exciting force generation device, in particular to an exciting force generation device used in a flight flutter test of an aircraft. The exciting force generation device comprises a motor, a motor support, a left support, a right support and a base. The motor and the motor support arranged at one end of the base are fixedly connected, the left support is arranged at the other end of the base, and right support is arranged on the base, is located between the left support and the motor support and is adjacent to one side of the motor support. The exciting force generation device is characterized by further comprising a shaft and an eccentric block. The shaft is fixed on the left support and the right support through bearings, and is connected with the motor through a coupler. The eccentric block is fixed on the shaft through a pin. The device provided by the utility model has the advantages that the optimized distribution and accurate control of the exciting force can be realized through adjusting a mass block, therefore during the flight test, better high frequency exciting effect can be achieved through changing the mass block to improve the high-frequency exciting force, and the amplitude and frequency of the exciting can be accurately controlled.
Description
Technical field
The utility model relates to a kind of exciting force generating apparatus, especially for the exciting force generating apparatus of aircraft flight flutter test.
Background technology
Airplane flutter take a flight test be aircraft seaworthiness authentication must be through step, the exciting force generating apparatus is to carry out necessity equipment that flutter is taken a flight test, derive the formula that embodies of exciting force according to the exciting force generating principle of unbalanced rotor, obtain the physical relationship of exciting force size and mass quality, disc radius and disk gyro frequency, form the inertia-powered device power value generation unit of a series of different power value outputs again by the size that changes mass quality, disc radius and disk gyro frequency, and then formed a cover inertia-powered device power value generation system.Present exciting force generating apparatus more complicated, and can not control exciting amplitude and frequency, also be not easy to install.
Summary of the invention
The purpose of this utility model provides a kind of exciting force generating apparatus that exciting amplitude and frequency are used for the aircraft flight flutter test of being convenient to install and can control.
The technical scheme that the utility model is taked is as follows:
A kind of exciting force generating apparatus, comprise motor (1), electric machine support (2), left socle (8), right support (4), base (10), motor (1) is fixedlyed connected with the electric machine support that is arranged in base (10) one ends (2), left socle (8) is arranged in base (10) other end, right support (4) is arranged on the base (10) and is positioned between left socle (8) and the electric machine support (2) near electric machine support (2) one sides, it is characterized in that also comprising axle (7), eccentric block (6), the axle (7) by bearing fixing at left and right sides support (8,4) on, and be connected by shaft coupling (3) with motor (1), eccentric block (6) is fixed on the axle (7) by pin.
Further, axle (7) is gone up and is also had a projection (11).
Further, also comprise a lining (5) on the axle (7), be positioned between eccentric block (6) and the right support (4).
This device can be realized distributing rationally of exciting force and accurately control by the adjustment to mass, so in flight test, not only can reach better high frequency pumping effect, but also can accurately control exciting amplitude and frequency by the exciting force of changing mass raising high frequency.
Description of drawings
Fig. 1 exciting force generates synoptic diagram;
Fig. 2 exciting force generating apparatus scheme of installation, wherein, 1: motor, 2: electric machine support, 3: shaft coupling, 4: right support, 5: lining, 6: eccentric block, 7: axle, 8: left socle, 9: bearing cover, 10: base, 11: projection.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing, please refer to Figure of description, exciting force generates Fig. 1 and generates synoptic diagram for exciting force, and Fig. 2 is an exciting force generating apparatus scheme of installation, and Fig. 1 specifies the exciting force generating principle.
Shown in Figure 1, the disk of a band unbalance mass, piece is promptly a quality m
1Mass, this mass is made up of the same mass of the block-shaped quality of n, is fixed on the uniform disk of mass distribution, the disk quality is m
2, disk is connected with motor coaxle, and motor quality is m
3When motor rotated with angular speed ω, disk just drove unbalanced rotor with identical angular speed rotation, thereby can produce periodic acting force to base, and this acting force is exactly conceivable periodicity exciting force.The power value generation unit of other exciting force configuration is to realize that by a fan-shaped derby principle that they generate exciting force is consistent.
When motor rotates with ω, can derive the exciting force expression formula and be:
R
x＝-m
1Rω
2cosωt .................................................(1)
R
y＝(m
1+m
2+m
3)g-m
1Rω
2sinωt ..............................(2)
The periodic exciting force that generates is sine or the cosine function of time.The radius of turn that changes material, rotational speed and the gyrating mass piece of unbalanced rotor mass just can change the periodic excitation power that generates.
By the mechanism of production of inertia-powered system incentive power as can be known the exciting force size be directly proportional with the quadratic power of mass quality, disc radius and disk gyro frequency.The configuration of the required exciting force of different structure mode that different aircrafts, same aircraft different parts, same position need motivate is all variant.Therefore, be necessary the seriation of same system exciting force.And concerning the inertia-powered system, the preferred plan that the exciting force seriation realizes on hardware is to realize by the mass size.By mass being done the seriation that further work has realized the exciting force configuration, promptly not only provide a kind of, the incentive mode of the exciting force configuration of a kind of 2 times, 3 times, 4 times, 6 times and 8 times can also be provided by changing the incentive mode that mass quantity changes the exciting force size.
Exciting force generating apparatus assembling synoptic diagram as shown in Figure 2.
This device comprises motor 1, electric machine support 2, left socle 8, right support 4, base 10, motor 1 is fixedlyed connected with the electric machine support 2 that is arranged in base 10 1 ends by trip bolt, left socle 8 is arranged in base 10 other ends, right support 4 is arranged on the base 10 and close electric machine support 2 one sides between left socle 8 and electric machine support 2, the axle 7 by bearing fixing at left and right sides support 8, on 4, and be connected by shaft coupling 3 with motor 1, in the present embodiment, shaft coupling 3 adopts flexible clutch, this can eliminate the axial deflection of eccentric block effectively, eccentric block 6 is fixed on the axle 7 by pin, electric machine support 2, right support 4 and left socle 8 are fixing by bolt and base 10 respectively, and bearing cover is installed in left socle 8 left sides.
Utilize this device can realize distributing rationally of exciting force and accurately control by adjustment to mass, so in flight test, not only can reach better high frequency pumping effect, but also can accurately control exciting amplitude and frequency by the exciting force of changing mass raising high frequency.Easy mounting means makes on the machine repacking and changes convenient.
Claims (4)
1. exciting force generating apparatus, comprise motor (1), electric machine support (2), left socle (8), right support (4), base (10), motor (1) is fixedlyed connected with the electric machine support that is arranged in base (10) one ends (2), left socle (8) is arranged in base (10) other end, right support (4) is arranged on the base (10) and is positioned between left socle (8) and the electric machine support (2) near electric machine support (2) one sides, it is characterized in that also comprising axle (7), eccentric block (6), the axle (7) by bearing fixing at left and right sides support (8,4) on, and be connected by shaft coupling (3) with motor (1), eccentric block (6) is fixed on the axle (7) by pin.
2. exciting force generating apparatus according to claim 1 is characterized in that: shaft coupling (3) is a spring coupling.
3. exciting force generating apparatus according to claim 1 is characterized in that: axle (7) is gone up also has a projection (11).
4. exciting force generating apparatus according to claim 1 is characterized in that: also comprise a lining (5) on the axle (7), be positioned between eccentric block (6) and the right support (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020509918 CN201811829U (en) | 2010-08-31 | 2010-08-31 | Exciting force generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020509918 CN201811829U (en) | 2010-08-31 | 2010-08-31 | Exciting force generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201811829U true CN201811829U (en) | 2011-04-27 |
Family
ID=43894769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020509918 Expired - Fee Related CN201811829U (en) | 2010-08-31 | 2010-08-31 | Exciting force generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201811829U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289645A (en) * | 2016-11-07 | 2017-01-04 | 北京东方振动和噪声技术研究所 | Rotor dynamic balancing assay method based on steady stimulation method and device |
| CN108444849A (en) * | 2018-03-08 | 2018-08-24 | 西南交通大学 | Synchrotron radiation vacuum/high pressure width-adjustable in situ fatigue test machine and its component |
| CN110854923A (en) * | 2019-11-18 | 2020-02-28 | 贵州电网有限责任公司 | Mass block device for improving inertial response of synchronous motor and using method thereof |
| CN114910235A (en) * | 2022-06-08 | 2022-08-16 | 北京航空航天大学 | Adjustable fulcrum dynamic load rotary excitation device |
-
2010
- 2010-08-31 CN CN 201020509918 patent/CN201811829U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289645A (en) * | 2016-11-07 | 2017-01-04 | 北京东方振动和噪声技术研究所 | Rotor dynamic balancing assay method based on steady stimulation method and device |
| CN106289645B (en) * | 2016-11-07 | 2020-05-01 | 北京东方振动和噪声技术研究所 | Rotor dynamic balance measuring method and device based on steady state excitation method |
| CN108444849A (en) * | 2018-03-08 | 2018-08-24 | 西南交通大学 | Synchrotron radiation vacuum/high pressure width-adjustable in situ fatigue test machine and its component |
| CN110854923A (en) * | 2019-11-18 | 2020-02-28 | 贵州电网有限责任公司 | Mass block device for improving inertial response of synchronous motor and using method thereof |
| CN114910235A (en) * | 2022-06-08 | 2022-08-16 | 北京航空航天大学 | Adjustable fulcrum dynamic load rotary excitation device |
| CN114910235B (en) * | 2022-06-08 | 2023-02-28 | 北京航空航天大学 | Adjustable fulcrum dynamic load rotary excitation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XI'AN YUANFANG GENERAL AVIATION TECHNOLOGY DEVELOPMENT CORPORATION Assignor: Chinese Flight Test Establishment Contract record no.: 2011610000153 Denomination of utility model: Exciting force generation device Granted publication date: 20110427 License type: Exclusive License Record date: 20110818 |
|
| 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: 20110427 Termination date: 20180831 |