CN203894027U - Protective stop mechanism for trailing edge control surface of flutter model - Google Patents
Protective stop mechanism for trailing edge control surface of flutter model Download PDFInfo
- Publication number
- CN203894027U CN203894027U CN201420188437.8U CN201420188437U CN203894027U CN 203894027 U CN203894027 U CN 203894027U CN 201420188437 U CN201420188437 U CN 201420188437U CN 203894027 U CN203894027 U CN 203894027U
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- CN
- China
- Prior art keywords
- stopper slot
- trailing edge
- positioning seat
- pressurized strut
- rudder face
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 230000001681 protective effect Effects 0.000 title abstract 5
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
A protective stop mechanism for a trailing edge control surface of a flutter model comprises a spacing rod, a spacing groove, a spacing groove positioning seat, an actuator cylinder and an actuate cylinder positioning seat. One end of the spacing rod is fixed on the trailing edge control surface of the flutter model. The spacing groove positioning seat and the actuate cylinder positioning seat are positioned in a main wing surface connected with the trailing edge control surface. The actuator cylinder and the actuate cylinder positioning seat are fixedly connected. The actuate cylinder positioning seat aims to fix the actuator cylinder on the main wing surface, so that the fixation of the actuator cylinder positioning seat on the main wing surface is required to be guaranteed. The protective stop mechanism for the trailing edge control surface of the flutter model is fully attached on a wing surface model no matter the wing surface model is a single-wing surface model or a full-aircraft model, and the protective stop mechanism is prevented from influences of other structures, thereby being independent. In addition, the protective stop mechanism is small and exquisite, and can be positioned in the model without generating additional aerodynamic force.
Description
Technical field
The utility model relates to structural design and the application of stop mechanism, and a kind of flutter model trailing edge rudder face protection stop mechanism is provided especially.
Background technology
Aerofoil flutter be aircraft awing, a kind of aeroelasticity wild effect producing due to the natural mode of vibration of aerofoil and aerodynamic force coupling.Need to determine whether Flutter Boundaries meets the requirement of flight envelope by simulation calculation and wind tunnel test.
The trailing edge rudder face flutter of flutter model is the important component part of flutter test, and flutter process is to be accompanied by risk to exist, so guard system is the important component part of flutter test, the guard system of rudder face is with safety, quality is light, reusable is basic characteristics, and this protection stop mechanism with these three kinds of basic characteristics has played important booster action to the flutter test of flutter model.
People urgently wish to obtain the good flutter model trailing edge rudder face protection stop mechanism of a kind of technique effect.
Utility model content
The purpose of this utility model is to provide the good flutter model trailing edge rudder face protection stop mechanism of a kind of technique effect; in flutter test, can prevent the excessive vibration of trailing edge rudder face and in the time that the flutter of trailing edge rudder face occurs, end at any time chatter phenomenon; the safety of protection flutter model; and can remove at any time the restriction to model; proceed flutter test, be convenient to the critical point of observing chatter phenomenon and finding out flutter.
Described flutter model trailing edge rudder face protection stop mechanism is constructed as follows: gag lever post 4, stopper slot 5, stopper slot positioning seat 6, pressurized strut 7 and pressurized strut positioning seat 8; On the fixing trailing edge rudder face with flutter model in one end of described gag lever post 4, stopper slot positioning seat 6 is positioned on the main plane that is connected trailing edge rudder face with pressurized strut positioning seat 8, described, pressurized strut 7 is fixedly linked with pressurized strut positioning seat 8, pressurized strut positioning seat 8 objects are pressurized strut 7 to be fixed on main plane, therefore, to ensure that pressurized strut positioning seat 8 is fixed on main plane 2 on the one hand, will ensure that on the other hand pressurized strut positioning seat 8 is by good pressurized strut 7 fixed clamp.Slide and be connected with stopper slot positioning seat 6 in stopper slot 5 one end, one end of described pressurized strut 7 is connected with the other end of stopper slot 5, and described stopper slot 5 is enclosed within gag lever post 4 other end outsides.
Described stopper slot 5 inside are cavity structure, and stopper slot 5 cavity width that is connected one end with pressurized strut 7 is less than the cavity width of stopper slot 5 other ends.Stopper slot 5 is connected one end cavity width with pressurized strut 7 slightly large with gag lever post 4 end diameters, gag lever post 4 is deep into stopper slot 5 central authorities, neither affects the vibration of rudder face under non-chatter state, has limited again the excessive danger of rudder face amplitude and has vibrated; When pressurized strut 7 is stretched out, promote stopper slot 5 and advance, while arriving certain displacement, snap into stopper slot positioning seat 6, stopper slot 5 halts, and now gag lever post 4 is just in time positioned at the narrowest place of stopper slot 5, make the gag lever post cannot free vibration, and then suppress the vibration of gag lever post 4 place rudder faces.
Described stopper slot 5 is connected one end with stopper slot positioning seat 6 and is provided with ligulate structure 51, and stopper slot 5 is connected by ligulate structure with stopper slot positioning seat 6.Described ligulate structure 51 is fitted with stopper slot positioning seat 6 and is not affected the proper motion of stopper slot 5; In the time of arrested state, stopper slot positioning seat 6 just blocks stopper slot 5, stopper slot 5 cannot be continued forward mobile; The surface in contact of ligulate structure 51 and stopper slot positioning seat 6 must be very smooth.
The axis of described pressurized strut 7 overlaps with the center line of ligulate structure 51.Pressurized strut 7 and stopper slot 5 close fit, the shift length of pressurized strut 7 is a bit larger tham the length of ligulate structure 51; When pressurized strut 7 bounces back, stopper slot place 5 is in protection state, and when pressurized strut 7 is stretched out, stopper slot 5 is in arrested state.
Described gag lever post 4 is fixed on the main force support structure of trailing edge rudder face 1 of flutter model, and motion state is herein consistent with the mass motion state of trailing edge rudder face 1.
The plane at stopper slot place is vertical with the axis of gag lever post; When static, the axis of gag lever post is positioned at the middle of stopper slot, and stopper slot entangles the end of gag lever post completely; Stopper slot is at protection state, that is:, when contactless with gag lever post, gag lever post end surrounding in the time that yaw rudder vibrates without danger is all contactless; Stopper slot in arrested state, that is:, when gag lever post is clamped at the narrowest place of stopper slot, forces gag lever post 4 ends to vibrate.
Flutter model trailing edge rudder face protection stop mechanism described in the utility model is minimum to the additional mass of trailing edge rudder face, a whole set of flutter model trailing edge rudder face protection stop mechanism, only have gag lever post to be positioned on trailing edge rudder face, use the light materials such as aluminium or carbon fiber to make gag lever post, the quality that makes to be additional to trailing edge rudder face is minimum, complete in the adjustable extent of counterweight, can be to the flutter of trailing edge rudder face not be had a negative impact; There is the dual-use function of protection and stop, in the time of protection state, can prevent the danger vibration of crossing large amplitude of trailing edge rudder face, in the time of arrested state, the vibration of stop trailing edge rudder face at once; This mechanism can freely switch between protection state and arrested state, thereby can carry out to the chatter phenomenon of trailing edge rudder face the observation of careful repetition.
Described flutter model trailing edge rudder face protection stop mechanism depends on aerofoil model completely, complete no matter be that single-blade surface model or machine model all can be according to this method layouts, is not subject to other structures as single-blade face base or fuselage affect, and has independence; And mechanism is small and exquisite, be positioned at model, do not produce extra aerodynamic force.
Brief description of the drawings
Fig. 1 is the position view of mechanism on model;
Fig. 2 is trailing edge rudder face protection stop mechanism schematic diagram;
Fig. 3 is gag lever post schematic diagram;
Fig. 4 is stopper slot schematic diagram;
Fig. 5 is the positioning seat schematic diagram of stopper slot;
Fig. 6 is pressurized strut schematic diagram;
Fig. 7 is the positioning seat schematic diagram of pressurized strut;
Embodiment
Embodiment 1
The object of the present embodiment is to provide the good flutter model trailing edge rudder face protection stop mechanism of a kind of technique effect; in flutter test, can prevent the excessive vibration of trailing edge rudder face and in the time that the flutter of trailing edge rudder face occurs, end at any time chatter phenomenon; the safety of protection flutter model; and can remove at any time the restriction to model; proceed flutter test, be convenient to the critical point of observing chatter phenomenon and finding out flutter.
Described flutter model trailing edge rudder face protection stop mechanism is constructed as follows: gag lever post 4, stopper slot 5, stopper slot positioning seat 6, pressurized strut 7 and pressurized strut positioning seat 8; On the fixing trailing edge rudder face with flutter model in one end of described gag lever post 4, stopper slot positioning seat 6 is positioned on the main plane that is connected trailing edge rudder face with pressurized strut positioning seat 8, described, pressurized strut 7 is fixedly linked with pressurized strut positioning seat 8, pressurized strut positioning seat 8 objects are pressurized strut 7 to be fixed on main plane, therefore, to ensure that pressurized strut positioning seat 8 is fixed on main plane 2 on the one hand, will ensure that on the other hand pressurized strut positioning seat 8 is by good pressurized strut 7 fixed clamp.Slide and be connected with stopper slot positioning seat 6 in stopper slot 5 one end, one end of described pressurized strut 7 is connected with the other end of stopper slot 5, and described stopper slot 5 is enclosed within gag lever post 4 other end outsides.
Described stopper slot 5 inside are cavity structure, and stopper slot 5 cavity width that is connected one end with pressurized strut 7 is less than the cavity width of stopper slot 5 other ends.Stopper slot 5 is connected one end cavity width with pressurized strut 7 slightly large with gag lever post 4 end diameters, gag lever post 4 is deep into stopper slot 5 central authorities, neither affects the vibration of rudder face under non-chatter state, has limited again the excessive danger of rudder face amplitude and has vibrated; When pressurized strut 7 is stretched out, promote stopper slot 5 and advance, while arriving certain displacement, snap into stopper slot positioning seat 6, stopper slot 5 halts, and now gag lever post 4 is just in time positioned at the narrowest place of stopper slot 5, make the gag lever post cannot free vibration, and then suppress the vibration of gag lever post 4 place rudder faces.
Described stopper slot 5 is connected one end with stopper slot positioning seat 6 and is provided with ligulate structure 51, and stopper slot 5 is connected by ligulate structure with stopper slot positioning seat 6.Described ligulate structure 51 is fitted with stopper slot positioning seat 6 and is not affected the proper motion of stopper slot 5; In the time of arrested state, stopper slot positioning seat 6 just blocks stopper slot 5, stopper slot 5 cannot be continued forward mobile; The surface in contact of ligulate structure 51 and stopper slot positioning seat 6 must be very smooth.
The axis of described pressurized strut 7 overlaps with the center line of ligulate structure 51.Pressurized strut 7 and stopper slot 5 close fit, the shift length of pressurized strut 7 is a bit larger tham the length of ligulate structure 51; When pressurized strut 7 bounces back, stopper slot place 5 is in protection state, and when pressurized strut 7 is stretched out, stopper slot 5 is in arrested state.
Described gag lever post 4 is fixed on the main force support structure of trailing edge rudder face 1 of flutter model, and motion state is herein consistent with the mass motion state of trailing edge rudder face 1.
The plane at stopper slot place is vertical with the axis of gag lever post; When static, the axis of gag lever post is positioned at the middle of stopper slot, and stopper slot entangles the end of gag lever post completely; Stopper slot is at protection state, that is:, when contactless with gag lever post, gag lever post end surrounding in the time that yaw rudder vibrates without danger is all contactless; Stopper slot in arrested state, that is:, when gag lever post is clamped at the narrowest place of stopper slot, forces gag lever post 4 ends to vibrate.
Described in the present embodiment, flutter model trailing edge rudder face protection stop mechanism is minimum to the additional mass of trailing edge rudder face, a whole set of flutter model trailing edge rudder face protection stop mechanism, only have gag lever post to be positioned on trailing edge rudder face, use the light materials such as aluminium or carbon fiber to make gag lever post, the quality that makes to be additional to trailing edge rudder face is minimum, complete in the adjustable extent of counterweight, can be to the flutter of trailing edge rudder face not be had a negative impact; There is the dual-use function of protection and stop, in the time of protection state, can prevent the danger vibration of crossing large amplitude of trailing edge rudder face, in the time of arrested state, the vibration of stop trailing edge rudder face at once; This mechanism can freely switch between protection state and arrested state, thereby can carry out to the chatter phenomenon of trailing edge rudder face the observation of careful repetition.
Described flutter model trailing edge rudder face protection stop mechanism depends on aerofoil model completely, complete no matter be that single-blade surface model or machine model all can be according to this method layouts, is not subject to other structures as single-blade face base or fuselage affect, and has independence; And mechanism is small and exquisite, be positioned at model, do not produce extra aerodynamic force.
Claims (4)
1. a flutter model trailing edge rudder face protection stop mechanism, is characterized in that: described flutter model trailing edge rudder face protection stop mechanism is constructed as follows: gag lever post (4), stopper slot (5), stopper slot positioning seat (6), pressurized strut (7) and pressurized strut positioning seat (8); One end of described gag lever post (4) is fixed on the trailing edge rudder face of flutter model (1), stopper slot positioning seat (6) is positioned on the main plane (2) that is connected trailing edge rudder face (1) with pressurized strut positioning seat (8), described pressurized strut (7) is fixedly linked with pressurized strut positioning seat (8), slide and be connected with stopper slot positioning seat (6) in stopper slot (5) one end, one end of described pressurized strut (7) is connected with the other end of stopper slot (5), and described stopper slot (5) is enclosed within gag lever post (4) other end outside.
2. flutter model trailing edge rudder face protects stop mechanism as claimed in claim 1, it is characterized in that: described stopper slot (5) is inner is cavity structure, and stopper slot (5) is connected the cavity width and the cavity width that is less than stopper slot (5) other end of one end with pressurized strut (7).
3. flutter model trailing edge rudder face protects stop mechanism as claimed in claim 2, it is characterized in that: described stopper slot (5) is connected one end with stopper slot positioning seat (6) and is provided with ligulate structure (51), and stopper slot (5) is slidably connected by ligulate structure mutually with stopper slot positioning seat (6).
4. flutter model trailing edge rudder face protects stop mechanism as claimed in claim 3, it is characterized in that: the axis of described pressurized strut (7) overlaps with the center line of ligulate structure (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188437.8U CN203894027U (en) | 2014-04-17 | 2014-04-17 | Protective stop mechanism for trailing edge control surface of flutter model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188437.8U CN203894027U (en) | 2014-04-17 | 2014-04-17 | Protective stop mechanism for trailing edge control surface of flutter model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203894027U true CN203894027U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420188437.8U Expired - Lifetime CN203894027U (en) | 2014-04-17 | 2014-04-17 | Protective stop mechanism for trailing edge control surface of flutter model |
Country Status (1)
| Country | Link |
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| CN (1) | CN203894027U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994873A (en) * | 2014-04-17 | 2014-08-20 | 中国航空工业集团公司沈阳飞机设计研究所 | Protection stop motion mechanism for trailing edge rudder surface of flutter model |
| CN104897361A (en) * | 2015-06-23 | 2015-09-09 | 中国航空工业集团公司西安飞机设计研究所 | Flutter model control plane operation system |
| CN109870289A (en) * | 2019-04-11 | 2019-06-11 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of T-type horizontal tail flutter model protective device and its application |
-
2014
- 2014-04-17 CN CN201420188437.8U patent/CN203894027U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994873A (en) * | 2014-04-17 | 2014-08-20 | 中国航空工业集团公司沈阳飞机设计研究所 | Protection stop motion mechanism for trailing edge rudder surface of flutter model |
| CN103994873B (en) * | 2014-04-17 | 2016-08-24 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of flutter model trailing edge rudder face protection stop mechanism |
| CN104897361A (en) * | 2015-06-23 | 2015-09-09 | 中国航空工业集团公司西安飞机设计研究所 | Flutter model control plane operation system |
| CN109870289A (en) * | 2019-04-11 | 2019-06-11 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of T-type horizontal tail flutter model protective device and its application |
| CN109870289B (en) * | 2019-04-11 | 2024-04-09 | 中国空气动力研究与发展中心高速空气动力研究所 | T-shaped horizontal tail flutter model protection device and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |