CN106240840B - A kind of wing-box experimental rig of bending loading - Google Patents
A kind of wing-box experimental rig of bending loading Download PDFInfo
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- CN106240840B CN106240840B CN201610529717.4A CN201610529717A CN106240840B CN 106240840 B CN106240840 B CN 106240840B CN 201610529717 A CN201610529717 A CN 201610529717A CN 106240840 B CN106240840 B CN 106240840B
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Abstract
The invention discloses a kind of wing-box experimental rigs of bending loading.The wing-box experimental rig of the bending loading includes: curved scissors component, and the curved scissors component clamps wing-box to be measured, and provides moment of flexure and/or shearing force for the wing-box to be measured；Torque component, the torque component setting provides torque on the curved scissors component, and for the curved scissors component, and the torque is passed to the wing-box to be measured by curved scissors component.The wing-box experimental rig of bending loading in the present invention utilizes " lever " principle and " superposition of power " to be supported and load, loading is " torque " or " moment of flexure+torque ", to solve the problems, such as that moment of flexure and torque can not be applied simultaneously in the prior art.
Description
Technical field
The present invention relates to strength of aircraft experimental technique fields, try more particularly to a kind of wing-box of bending loading
Experiment device.
Background technique
Main load component of the wing boxes of wings as aircaft configuration, the load being subject to specifically include that aerofoil air force, machine
The concentrfated load that undercarriage transmits when the inertia force (including tote) of the wing and other components, takeoff and landing.It is interior on section
Power mainly has: moment of flexure, shearing and torque.In development phase, usually chooses and pass through suitably simplification in wing boxes of wings with mould for a certain section
Intend true wing boxes of wings and carries out intensity examination.The wing-box that loading is " moment of flexure " or " moment of flexure+shearing " is tested, it is existing
Above-mentioned test is carried out by the device formed with load wall, gripping clamping apparatus, testpieces, loads fixture by technology, main benefit
Apply bending load with beam " four-point bending " principle, shearing cannot be applied.
Thus, it is desirable to have a kind of technical solution overcomes or at least mitigates at least one drawbacks described above of the prior art.
Summary of the invention
The purpose of the present invention is to provide a kind of wing-box experimental rigs of bending loading to overcome or at least subtract
At least one drawbacks described above of the light prior art.
To achieve the above object, described curved the present invention provides a kind of wing-box experimental rig of bending loading
The wing-box experimental rig for turning round loading includes: curved scissors component, and the curved scissors component clamps wing-box to be measured, and is institute
It states wing-box to be measured and moment of flexure and/or shearing force is provided；Torque component, the torque component are arranged on the curved scissors component,
And torque is provided for the curved scissors component, and the torque is passed to by the wing-box to be measured by curved scissors component.
Preferably, the curved scissors component includes: the first bottom beam, and first bottom beam has a supporting surface；Loading device,
One end of the loading device is arranged on the supporting surface of first bottom beam；First load clamping device, first load
Clamping device is connect with the other end of the loading device, and the first load clamping device has a clamping end；Second bottom
Beam, second bottom beam have a supporting surface；The branch of second bottom beam is arranged in support device, described support device one end
On support face；Second load clamping device, the second load clamping device are connect with the other end of the support device, and described the
Two load clamping devices have a clamping end；Second bottom beam is arranged in limiting device, one end of the limiting device
On supporting surface, the other end is connect with the second load clamping device；Wherein, it is described first load clamping device aid end with
The aid end of the second load clamping device is opposite, and for wing-box to be measured to be clamped between two aid ends；Institute
Loading device is stated for for the wing-box to be measured providing loading force, to make the wing-box to be measured by moment of flexure or together
When by moment of flexure and shearing；The limiting device for limit it is described first load clamping device first load clamping device,
The connection side of wing-box to be measured and the second load clamping device has displacement upwards.
Preferably, the torque component includes: third bottom beam, and the third bottom beam has a supporting surface；Torque load
Device, one end of the torque loading device are arranged on the supporting surface of third bottom beam；Torque loading beam, the torque loading beam
It is connect with the first load clamping device, the other end of the torque loading device is connect with the torque loading beam；Torque
Balanced component, the balance component are connect with the second load clamping device；Wherein, the torque loading device is used for
Apply torque for the torque loading beam, which is passed to the first load clamping device, institute by the torque loading beam
It states the first load clamping device and the torque is passed into the wing-box to be measured；The balance component is used to be described the
Two load clamping devices provide the reaction force for resisting the torque.
Preferably, the balance component includes: first base；First support column, one end of first support column
It is connect with the first base；Second base；Second support column, one end of second support column and the second base connect
It connects；Equalizer bar, the equalizer bar are connect with the second load clamping device, one end of the equalizer bar and first support
The other end of column connects, and the other end of the equalizer bar is connect with the other end of second support column.
Preferably, the loading device includes two groups of pressurized strut groups, and each pressurized strut group includes two pressurized struts, two groups of works
Connection side's upstream sequence that dynamic cylinder group loads clamping device, wing-box to be measured and the second load clamping device first is put
It sets；The torque loading device includes two pressurized struts, and the branch of the third bottom beam is arranged in the cylinder of one of pressurized strut
On support face, the piston rod of the pressurized strut connects one end of the torque loading beam；The cylinder of another pressurized strut is arranged described
On the supporting surface of third bottom beam, the piston rod of the pressurized strut connects the other end of the torque loading beam.
Preferably, the first load clamping device includes: the first load box section, and the first load box section adds with described
It carries and sets connection；One end of the first load box section is arranged in first buttcover plate, first buttcover plate；First pinboard,
First pinboard is connect with first buttcover plate, and a face of first pinboard is set as joint face, for
Wing-box connection to be measured.
Preferably, the second load clamping device includes: the second load box section, the second load box section and the branch
Support arrangement and limiting device connection；The one of the second load box section is arranged in second buttcover plate, second buttcover plate
End；Second pinboard, second pinboard are connect with second buttcover plate, and a face of second pinboard is set as
Joint face, for being connect with wing-box to be measured.
Preferably, the wing-box experimental rig of the curved scissors loading further comprises bearing beam, the support device
It is connect between the second load box section by bearing beam.
Preferably, the limiting device includes limiting device ontology, with limit angle case assembly, the limit angle case assembly packet
Limit angle box is included, the limit angle box includes the plate body of two intersections, and reinforcing rib is provided between two plate bodys, described to add
Strengthening tendons will be divided into two accommodation spaces between described two plate bodys；Hinged-support, the hinged-support setting are empty in the receiving
In, the hinged-support has the convex hinged structure of a concave portion, and the convex hinged structure has a protruding portion, and the protruding portion is set
It sets in the concave portion of the hinged-support, the convex hinged structure is connect with the hinged-support；The convex hinged structure and described second
Load the connection of box section.
The wing-box experimental rig of bending loading in the present invention utilize " lever " principle and " superposition of power " into
Row support and load, loading is " torque " or " moment of flexure+torque ", thus solve can not apply simultaneously in the prior art it is curved
The problem of square and torque.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the wing-box experimental rig of bending loading according to an embodiment of the invention.
Fig. 2 is the structural schematic diagram of the limit angle box in the wing-box experimental rig of bending loading shown in FIG. 1.
Fig. 3 is the structural schematic diagram of the hinged-support in the wing-box experimental rig of bending loading shown in FIG. 1.
Fig. 4 is the structural schematic diagram of the convex hinged structure in the wing-box experimental rig of bending loading shown in FIG. 1.
Fig. 5 is that the structure of the limiting device ontology in the wing-box experimental rig of bending loading shown in FIG. 1 is shown
It is intended to.
Appended drawing reference
| 1 | First bottom beam | 32 | First buttcover plate |
| 2 | Loading device | 33 | First pinboard |
| 3 | First load clamping device | 61 | Second load box section |
| 4 | Second bottom beam | 62 | Second buttcover plate |
| 5 | Support device | 63 | Second pinboard |
| 6 | Second load clamping device | 71 | Limiting device ontology |
| 7 | Limiting device | 72 | Limit angle box |
| 8 | Wing-box to be measured | 73 | Hinged-support |
| 21 | Pressurized strut | 74 | Convex hinged structure |
| 31 | First load box section | 133 | Second base |
| 10 | Third bottom beam | 134 | Second support column |
| 11 | Torque loading device | 135 | Equalizer bar |
| 12 | Torque loading beam | ||
| 131 | First base | ||
| 132 | First support column |
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.Under
Face is described in detail the embodiment of the present invention in conjunction with attached drawing.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention
The limitation of range.
Fig. 1 is the structural schematic diagram of the wing-box experimental rig of bending loading according to an embodiment of the invention.
Fig. 2 is the structural schematic diagram of the limit angle box in the wing-box experimental rig of bending loading shown in FIG. 1.Fig. 3 is Fig. 1
Shown in bending loading wing-box experimental rig in hinged-support structural schematic diagram.Fig. 4 is bending shown in FIG. 1
The structural schematic diagram of convex hinged structure in the wing-box experimental rig of loading.Fig. 5 is bending loading shown in FIG. 1
Wing-box experimental rig in limiting device ontology structural schematic diagram.
The wing-box experimental rig of bending loading as shown in Figure 1 includes including curved scissors component and torque group
Part, curved scissors component clamps wing-box to be measured, and provides moment of flexure and/or shearing force for wing-box to be measured；The setting of torque component
Torque is provided on curved scissors component, and for curved scissors component, and the torque is passed to by wing-box to be measured by curved scissors component.
The wing-box experimental rig of bending loading in the present invention utilize " lever " principle and " superposition of power " into
Row support and load, loading is " torque " or " moment of flexure+torque ", thus solve can not apply simultaneously in the prior art it is curved
The problem of square and torque.
Referring to Fig. 1, in the present embodiment, curved scissors component includes the first bottom beam 1, the load clamping device of loading device 2, first
3, the second bottom beam 4, support device 5, second load clamping device 6 and limiting device 7.
Referring to Fig. 1, in the present embodiment, the first bottom beam 1 uses I-beam, and the side in the two sides of I-beam is as branch
Support, can place on the base, as supporting surface, the supporting surface of the first bottom beam 1 is arranged in one end of loading device 2 in another face
On；First load clamping device 3 is connect with the other end of loading device 2, and the first load clamping device 3 has a clamping end.
Referring to Fig. 1, the second bottom beam uses I-beam, and the side in the two sides of I-beam can be placed on base as support
On seat, another face is as supporting surface.5 one end of support device is arranged on the supporting surface of the second bottom beam 4；Second load clamping dress
It sets 6 to connect with the other end of support device 5, the second load clamping device 6 has a clamping end.One end of limiting device 7 is set
It sets on the supporting surface of the second bottom beam 4, the other end is connect with the second load clamping device 6；Wherein, the first load clamping device 3
Aid end it is opposite with the second load aid end of clamping device 6, and for wing-box 8 to be measured to be clamped in two aid ends
Between；Loading device 2 is used to provide loading force for wing-box 8 to be measured, to make wing-box 8 to be measured by moment of flexure or simultaneously
By moment of flexure and shearing；Limiting device 7 loads clamping device, wing to be measured first for limiting the first load clamping device 3
The connection side of box section and the second load clamping device has displacement upwards, and (the connection direction is square as shown by the arrows in Figure 1
To).
The wing-box experimental rig of curved scissors loading in the present invention utilizes " lever " principle to be supported and load,
Loading is " moment of flexure " or " moment of flexure+shearing ", so that asking for moment of flexure and shearing can not be applied simultaneously in the prior art by solving
Topic.
Referring to Fig. 1, in the present embodiment, loading device includes two groups of pressurized strut groups, and two groups of pressurized strut groups are in the first load
Connection side's upstream sequence of clamping device, wing-box to be measured and the second load clamping device is placed.When in use, one group of work
Dynamic cylinder group is reinforced to a direction, then another set pressurized strut reinforces in the opposite direction, can form moment of flexure and/or shearing
Power.
In the present embodiment, every group of pressurized strut group includes two pressurized struts 21.
Referring to Fig. 1, in the present embodiment, the cylinder of each pressurized strut and the first bottom beam are hinged；The piston rod of pressurized strut with
First load clamping device is hinged.By the way of hinged, a certain amount of deformation can be generated in load, is prevented due to rigidity
Connection is to keep junction impaired or influence test effect.
Referring to Fig. 1, in the present embodiment, the first load clamping device 3 includes the first load box section 31, the first buttcover plate 32
And first pinboard 33, the first load box section 31 are connect with loading device；The setting of first buttcover plate 32 loads box section first
31 one end；First pinboard 33 is connect with the first buttcover plate 32, and a face of the first pinboard 33 is set as joint face, is used for
It is connect with wing-box 8 to be measured.
Referring to Fig. 1, in the present embodiment, the second load clamping device 6 includes the second load box section 61, the second buttcover plate 62
And second pinboard 63, the second load box section 61 are connect with support device 5 and limiting device 7；The setting of second buttcover plate 62 exists
One end of second load box section 61；Second pinboard 63 is connect with the second buttcover plate 62, the face setting of the second pinboard 63
For joint face, it is used to connect with wing-box 8 to be measured.
In the present embodiment, the first load box section and the second load box section are identical structure, and are weldment.
First buttcover plate and the second buttcover plate are identical structure.
First pinboard and the second pinboard are identical structure.
Above structure uses the advantages of identical structure to be that the transmitting of power is uniform, and point of power will not be generated due to structure
The problem of dissipating.
It is understood that being bolted between the first load box section and the first buttcover plate, and bolt quantity is greater than
10.
It is understood that being bolted between the first buttcover plate and the first pinboard, and bolt quantity is greater than 10
It is a.
It is understood that being bolted between the second load box section and the second buttcover plate, and bolt quantity is greater than
10.
It is understood that being bolted between the second buttcover plate and the second pinboard, and bolt quantity is greater than 10
It is a.
Since during the test, the first load box section, the first buttcover plate, the first pinboard, second load box section, second
Buttcover plate and the second pinboard are load component, and therefore, the bolt quantity of use should be no less than 10, prevent junction
Fracture.
Referring to Fig. 1, in the present embodiment, the wing-box experimental rig of bending loading further comprises bearing beam, branch
It is connected between support arrangement 5 and the second load box section 61 by bearing beam.It is attached using bearing beam, contact area can be increased, prevented
Only stress is concentrated.
Referring to Fig. 1 to Fig. 5, in the present embodiment, limiting device 7 includes limiting device ontology 71 and limit angle box group
Part, limit angle case assembly include limit angle box 72, hinged-support 73 and convex hinged structure 74, and limit angle box 72 includes two intersections
Plate body is provided with reinforcing rib between two plate bodys, and reinforcing rib will be divided into two accommodation spaces between two plate bodys；Hinge
Support 73 is arranged in accommodation space, and hinged-support 73 has a concave portion；Convex hinged structure 74 has a protruding portion, protruding portion
It is arranged in the concave portion of hinged-support 74, convex hinged structure 74 is connect with hinged-support 73；Convex hinged structure 74 and the second load box section 61
Connection.Using this mechanism, the function of realization required for limiting device can be reached in this application.
Referring to Fig. 5, in the present embodiment, limiting device ontology 71 includes the supporting beam of two intersections, one of support
Beam is arranged perpendicular to another supporting beam, is provided with stiffening plate between two supporting beams.Using this structure, limit can be increased
The intensity of device noumenon.
Referring to Fig. 1, in the present embodiment, the torque component includes that third bottom beam 10, torque loading device 11, torque add
Carrier beam 12 and balance component 13, third bottom beam 10 have a supporting surface；One end setting of torque loading device 11 exists
On the supporting surface of third bottom beam 10；Torque loading beam 12 with first load clamping device 3 connect, torque loading device 11 it is another
End is connect with torque loading beam 12；Balance component 13 is connect with the second load clamping device 6；Wherein, torque loading device
Apply torque for stating torque loading beam, which is passed to the first load clamping device, the first loading clamp by torque loading beam
It holds device and the torque is passed into wing-box to be measured；Balance component is used to provide resistance for the second load clamping device and turn round
The reaction force of square.
Referring to Fig. 1, in the present embodiment, balance component 13 includes first base 131, the first support column 132, second
Pedestal 133, the second support column 134 and equalizer bar 135, one end of the first support column 132 are connect with first base 131；Second
One end of support column 134 is connect with second base 133；Equalizer bar 135 is connect with the second load clamping device 6, equalizer bar 135
One end is connect with the other end of the first support column 132, and the other end of equalizer bar 135 is connect with the other end of the second support column.
Referring to Fig. 1, in the present embodiment, torque loading device includes two pressurized struts 21, one of pressurized strut 21
Cylinder is arranged on the supporting surface of third bottom beam, one end of the piston rod connection torque loading beam of the pressurized strut 21；Another is made
The cylinder of dynamic cylinder 21 is arranged on the supporting surface of third bottom beam, and the piston rod of the pressurized strut 21 connects the another of the torque loading beam
One end.
Finally it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, the essence for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Mind and range.
Claims (9)
1. a kind of wing-box experimental rig of bending loading, which is characterized in that the wing box of the bending loading
Section experimental rig include:
Curved scissors component, the curved scissors component clamps wing-box to be measured, and provides moment of flexure for the wing-box to be measured and/or cut
Shear force；
Torque component, the torque component setting provides torque on the curved scissors component, and for the curved scissors component, and passes through
The torque is passed to the wing-box to be measured by curved scissors component.
2. the wing-box experimental rig of bending loading as described in claim 1, which is characterized in that the curved scissors component
Include:
First bottom beam (1), first bottom beam (1) have a supporting surface；
One end of loading device (2), the loading device (2) is arranged on the supporting surface of first bottom beam (1)；
First load clamping device (3), first load clamping device (3) are connect with the other end of the loading device (2),
First load clamping device (3) has a clamping end；
Second bottom beam (4), second bottom beam (4) have a supporting surface；
Support device (5), described support device (5) one end are arranged on the supporting surface of second bottom beam (4)；
Second load clamping device (6), second load clamping device (6) are connect with the other end of the support device (5),
Second load clamping device (6) has a clamping end；
Limiting device (7), one end of the limiting device (7) are arranged on the supporting surface of second bottom beam (4), the other end with
Second load clamping device (6) connection；Wherein,
The aid end of first load clamping device (3) is opposite with the second load aid end of clamping device (6), is used in combination
In wing-box to be measured (8) being clamped between two aid ends；
The loading device (2) is used to provide loading force for the wing-box (8) to be measured, to make the wing-box to be measured
(8) by moment of flexure or simultaneously by moment of flexure and shearing；
The limiting device (7) loads clamping device, wing to be measured first for limiting first load clamping device (3)
The connection side of box section and the second load clamping device has displacement upwards.
3. the wing-box experimental rig of bending loading as claimed in claim 2, which is characterized in that the torque component
Include:
Third bottom beam (10), the third bottom beam (10) have a supporting surface；
One end of torque loading device (11), the torque loading device (11) is arranged on the supporting surface of third bottom beam (10)；
Torque loading beam (12), the torque loading beam (12) connect with first load clamping device (3), and the torque adds
It carries and sets the other end of (11) and connect with the torque loading beam (12)；
Balance component (13), the balance component (13) connect with second load clamping device (6)；Wherein,
The torque loading device is used to apply torque for the torque loading beam, and the torque loading beam passes to the torque
The torque is passed to the wing-box to be measured by the first load clamping device, the first load clamping device；It is described
Balance component is used to provide the reaction force for resisting the torque for the second load clamping device.
4. the wing-box experimental rig of bending loading as claimed in claim 3, which is characterized in that the balance
Component (13) includes:
First base (131)；
One end of first support column (132), first support column (132) is connect with the first base (131)；
Second base (133)；
One end of second support column (134), second support column (134) is connect with the second base (133)；
Equalizer bar (135), the equalizer bar (135) connect with second load clamping device (6), the equalizer bar (135)
One end connect with the other end of first support column (132), the other end of the equalizer bar (135) and it is described second support
The other end of column connects.
5. the wing-box experimental rig of bending loading as claimed in claim 4, which is characterized in that the loading device
Including two groups of pressurized strut groups, each pressurized strut group includes two pressurized struts (21), and two groups of pressurized strut groups are in the first load clamping dress
Set, wing-box to be measured and second load clamping device connection side's upstream sequence place；
The torque loading device includes two pressurized struts (21), and the cylinder of one of pressurized strut (21) is arranged in the third
On the supporting surface of bottom beam, the piston rod of the pressurized strut (21) connects one end of the torque loading beam；
The cylinder of another pressurized strut (21) is arranged on the supporting surface of the third bottom beam, and the piston rod of the pressurized strut (21) connects
Connect the other end of the torque loading beam.
6. the wing-box experimental rig of bending loading as claimed in claim 5, which is characterized in that first load
Clamping device (3) includes:
First load box section (31), first load box section (31) are connect with the loading device；
First buttcover plate (32), the first buttcover plate (32) setting is in one end of first load box section (31)；
First pinboard (33), first pinboard (33) connect with first buttcover plate (32), first pinboard
(33) a face is set as joint face, for connecting with wing-box to be measured (8).
7. the wing-box experimental rig of bending loading as claimed in claim 6, which is characterized in that second load
Clamping device (6) includes:
Second load box section (61), second load box section (61) and the support device (5) and the limiting device (7) are even
It connects；
Second buttcover plate (62), the second buttcover plate (62) setting is in one end of second load box section (61)；
Second pinboard (63), second pinboard (63) connect with second buttcover plate (62), second pinboard
(63) a face is set as joint face, for connecting with wing-box to be measured (8).
8. the wing-box experimental rig of bending loading as claimed in claim 7, which is characterized in that the curved scissors is loaded
The wing-box experimental rig of form further comprises bearing beam, the support device (5) and it is described second load box section (61) it
Between pass through bearing beam connect.
9. the wing-box experimental rig of bending loading as claimed in claim 8, which is characterized in that the limiting device
(7) include:
Limiting device ontology (71), and
Limit angle case assembly, the limit angle case assembly include:
Limit angle box (72), the limit angle box (72) include the plate body of two intersections, are provided with and add between two plate bodys
Strengthening tendons, the reinforcing rib will be divided into two accommodation spaces between described two plate bodys；
Hinged-support (73), the hinged-support (73) are arranged in the accommodation space, and the hinged-support (73) is recessed with one
Portion；
Convex hinged structure (74), the convex hinged structure (74) have a protruding portion, and the protruding portion is arranged in the hinged-support
(74) in concave portion, the convex hinged structure (74) connect with the hinged-support (73)；
The convex hinged structure (74) connect with second load box section (61).
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| CN201610529717.4A CN106240840B (en) | 2016-07-05 | 2016-07-05 | A kind of wing-box experimental rig of bending loading |
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| CN201610529717.4A CN106240840B (en) | 2016-07-05 | 2016-07-05 | A kind of wing-box experimental rig of bending loading |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248322B (en) * | 2016-07-05 | 2018-11-13 | 中国飞机强度研究所 | A kind of wing-box experimental rig of curved scissors loading |
| CN108238282B (en) * | 2017-12-04 | 2021-03-26 | 中国飞机强度研究所 | Central wing box test equipment |
| CN108168756A (en) * | 2017-12-08 | 2018-06-15 | 中国航空工业集团公司西安飞机设计研究所 | A kind of test method and experimental rig of bent plate tension field |
| CN110758768B (en) * | 2019-10-15 | 2022-07-26 | 中国直升机设计研究所 | Loading device for stiffness test of flexible beam of bearingless rotor wing |
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| CN105716888A (en) * | 2014-12-03 | 2016-06-29 | 中国飞机强度研究所 | Aerofoil box segment test device and method |
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2016
- 2016-07-05 CN CN201610529717.4A patent/CN106240840B/en active Active
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| DE3818449A1 (en) * | 1988-05-31 | 1989-12-07 | Letay Gabriel Dipl Ing | Work spindle for high bending load and torque measurement by torsion |
| CN101441477A (en) * | 2007-11-19 | 2009-05-27 | 北京航空航天大学 | Bending combined two-dimension time-varying load loading unit |
| RU2549043C1 (en) * | 2014-04-17 | 2015-04-20 | Открытое акционерное общество "Национальный институт авиационных технологий" (ОАО НИАТ) | Wing box, reinforced with polymer composite material |
| CN104020038A (en) * | 2014-06-17 | 2014-09-03 | 山东大学 | Combinatorial testing accessory of vibration testing platform and static fatigue testing method |
| CN105716888A (en) * | 2014-12-03 | 2016-06-29 | 中国飞机强度研究所 | Aerofoil box segment test device and method |
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| CN106240840A (en) | 2016-12-21 |
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