CN105157973B - Arrester hook dynamic fatigue test device and test method - Google Patents
Arrester hook dynamic fatigue test device and test method Download PDFInfo
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- CN105157973B CN105157973B CN201510562287.1A CN201510562287A CN105157973B CN 105157973 B CN105157973 B CN 105157973B CN 201510562287 A CN201510562287 A CN 201510562287A CN 105157973 B CN105157973 B CN 105157973B
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Abstract
Arrester hook dynamic fatigue test device and test method belong to a kind of experimental rig and test method, and arrester hook is subject to the technical field of fatigue life prediction after shock loading when more particularly to warship suitable for ship-board aircraft.It mainly includes by rack（3）, column（2）, promote motor（1）And hanging basket（4）Form test bench system；It further includes by buffer（5）, buffer ground（6）Form buffer system；Impact test system is formed by arrester hook system L, collision stage P；By collision stage P, axle sleeve（11）And check cable（12）Composition hits rope pilot system；By support stand（17）, pressurized strut（18）, lever（19）, extension rod（20）Form dynamic loading system.The present invention, which is realized against arrester hook during warship, hits deck, the simulation hit rope impact, block the loading conditions such as power dynamic load, carries out multiplicating experiment, predicts the fatigue life of arrester hook.
Description
Technical field
The invention belongs to a kind of experimental rig and test method, when more particularly to warship suitable for ship-board aircraft arrester hook by
The technical field of fatigue life prediction after to shock loading.
Technical background
Arrester hook is a significant difference of the ship-board aircraft compared with land airplane, and main function is smoothly marched into the arena in aircraft
After hook aircraft carrier check cable, power will be blocked and be transferred on fuselage, force aircraft.In general, arrester hook when ship-board aircraft warship
It is collided at first with deck, and the spring of limited height occurs under the effect of arrester hook longitudinal damper, meanwhile, involve fortune in aircraft
Under dynamic, gib head with it is slightly higher go out deck surface hanging horizontal check cable engage, block cable system and block machine and start to work, will be winged
Machine blocks in limited distance to stop.
Unique parts of the arrester hook as connection aircraft and warship face check cable, Fatigue Life Problems directly determine aircraft
Security.Arrester hook will bear to be several times as much as during ship-board aircraft warship the load of Aircraft Quality, and each during by warship
The complicated enchancement factor of kind influences, and loading is complicated and changeable, this results in arrester hook short life, and harm is big, and its fatigue life
Problem complicated mechanism, it is desirable to predict that the fatigue life of arrester hook is extremely difficult.
Research of the foreign countries in terms of arrester hook load has the history of decades, very ripe.If the U.S. is in ship-board aircraft
In carrier-borne suitability flight test, substantial amounts of arrester hook load actual measurement is carried out, has formd specification；USN is to arrester hook
Corrosion fatigue has carried out experimental study, but the experiment is to carry out static loading to arrester hook, does not consider dynamic load to blocking
Hinder the influence of hook fatigue.And the ship-board aircraft in China is in the early stage of development, also no carry out condition surveyed on substantial amounts of warship
Experiment, there is also the problems such as danger is high, difficulty is big, somewhat expensive for continental rise flight test.
In order to predict fatigue life of the arrester hook under the changeable load of Various Complex, true simulation ship-board aircraft warship mistake
The loading conditions of arrester hook in journey, devise a set of arrester hook dynamic fatigue test device, which can continuously successively
Deck shock is carried out, rope impact is hit, blocks power dynamic loading test, simulation once complete warship process, test effect and reality
Border situation approaches.The fatigue life of arrester hook, solution are predicted in the case of can thus being tested on no warship with land-based test
It has determined the problem of dangerous high, difficulty is big, somewhat expensive.
China has carried out a small amount of continental rise flight test to obtain dynamic response when arrester hook blocks, but these in recent years
Experiment is extremely limited both for a certain specific model and its corresponding arrester hook, data.The experimental rig is realized to greatest extent
The loading conditions of arrester hook when simulation ship-board aircraft warship, the experiment for meeting different ship-board aircrafts and different arrester hooks will
It asks, there are no similar experimental rig occurred in published document.
The content of the invention
The purpose of the present invention：For ship-board aircraft, in the case that experiment and land-based test difficulty are big on warship, devise a set of
Arrester hook dynamic fatigue test device, efficiently solve ship-board aircraft arrester hook fatigue life during warship it is difficult to predict
Problem.
Technical scheme includes：Experimental rig is by test bench system, arrester hook system, buffer system, collision
Platform hits rope pilot system, dynamic loading system composition, and test bench system includes rack, the two root posts for being installed on rack, peace
Promotion motor loaded on rack top is installed on the hanging basket for promoting motor lower end by cable wire, and hanging basket passes through bearing and described two
Root post is connected so that it can be slided up and down vertically along column；Arrester hook system includes Y type arrester hooks, and Y types arrester hook has two
Root hook arm；Further include a pair of of the fixture for being fixed on the hanging basket side, be respectively mounted in each fixture there are one horizontal rotating shaft, one
Damper；There is the first auricle and the second auricle on horizontal rotating shaft；Damper is installed on along hanging basket side vertical in fixture, one
End is connected with first auricle, and other end end is connected with fixture；The hook arm of Y type arrester hooks is connected with the first auricle, the other end
For free end；The plane that the hook arm of Y type arrester hooks is formed and horizontal plane have certain angle, the angular dimension and is simulated
The deck angle of arrester hook is corresponding when ship-board aircraft warship；Projection of the line of symmetry of the hook arm of Y type arrester hooks in horizontal plane is made
For reference line；Damper and horizontal rotating shaft and reference line are vertical；Buffer system is located at immediately below hanging basket, by buffer ground
It is formed with a pair of of buffer；Collision stage by collision disk ground, by mounting bracket be installed on collision disk ground on collision disk, collision
Disk-drive motor forms, and collision disk is parallel with horizontal plane, is connected by a vertical axis with mounting bracket, installation site causes
The point of impingement of arrester hook gib head and collision disk is located at the edge of collision disk, and side of the linear velocity direction of the point along the reference line
To；Rope pilot system is hit to block including the axle sleeve being installed on the axis of above-mentioned collision stage and two levels being connected on axle sleeve
Rope, check cable are symmetrically located at axle sleeve both sides, and the length of check cable is longer than the radius of rotating disk；Dynamic loading system is by supporting table
Frame, pressurized strut, lever, extension rod composition, pressurized strut are tiltedly stood on support stand, and lever is mounted on support stand, lever
First end is connected with pressurized strut, and the second end of lever is connected with the first end of extension rod；Carry out extension rod during dynamic loading test
It is connected in horizontality and its second end with arrester hook；Collision stage between test bench system and dynamic loading system,
Arrester hook is in higher than rope pilot system is hit when horizontality is connected with extension rod, and the check cable hit in rope pilot system extends entirely
Shi Buyu test bench systems and dynamic loading system interference.
Test method includes procedure below：
It simulates arrester hook and hits deck testing：The lifting of hanging basket of arrester hook system will be installed to predetermined altitude, hanging basket exists
Freely glide along column under gravity, make arrester hook gib head and collision disk contact to simulate when ship-board aircraft warship arrester hook and
The collision process on deck；Hanging basket can be with upward vertical movement under the action of motor is promoted；Before freely gliding by adjusting hanging basket
Release altitude so that the falling speed of hanging basket reaches the subsidence velocity of ship-board aircraft in collision moment；Arrester hook is adjusted with touching
The position of disk is hit, arrester hook gib head is made to reach predetermined value with colliding distance of the contact point of disk away from collision disk axis, and gib head is first
Collision disk is hit, and then hanging basket cushion at collision again, situation when this warship with ship-board aircraft is consistent；Pass through driving motor band
Dynamic collision disk rotates at a high speed, the rotating speed of setting collision disk so that the linear velocity at the point of impingement of the arrester hook gib head with colliding disk reaches
Course speed when warship to ship-board aircraft；Arrester hook is installed on same level with that can rebound after collision disk collision with arrester hook
Damper in shaft can inhibit its rebound；Buffer is used to simulate the cushioning effect of undercarriage when ship-board aircraft warship, adjustment
The parameter of buffer so that the buffering effect of main landing gear when its buffering effect warship with ship-board aircraft is consistent；
Hit rope impact test：By the high speed rotation of axis check cable is driven to rotate to simulate impact speed when arrester hook hits rope
Degree；Putting down hanging basket from eminence makes arrester hook be impacted with high-speed rotating check cable, throwing of the hook-rope shock point on collision disk
Shadow is overlapped with hook-disk point of impingement, therefore hook-disk impact test and the rotating speed of axis during hook-rope impact test are the same；
Block power dynamic loading test：Arrester hook is evened up and is hung on extension rod, dynamic load is carried out by pressurized strut, is passed through
Lever and extension rod pass to dynamic load on arrester hook.
Beneficial effects of the present invention：
(a) realize to simulate arrester hook in the lab and hit the experiment on deck, hit rope impact test and block power dynamic and add
Carry experiment, solve the problems, such as ship-board aircraft warship during arrester hook loading conditions be difficult to simulate；
(b) experimental rig realizes that simulating arrester hook in the short time successively hits deck, hits rope impact and block power dynamic
Load three kinds of dynamic processes, to greatest extent simulation it is actual the loading conditions of the arrester hook of warship process, carry out multiplicating examination
It tests, predicts the fatigue life of arrester hook；
(c) experimental rig is suitable for different the ship-board aircrafts of warship speed, while is also applied for various forms of block
Hook.
Description of the drawings
The structure diagram of 1 arrester hook dynamic fatigue test device of attached drawing；
The front view of 2 arrester hook dynamic fatigue test device of attached drawing；
The structure diagram of 3 arrester hook system of attached drawing and buffer system；
The left view of 4 arrester hook system of attached drawing and buffer system；
The structure diagram of 5 collision stage of attached drawing；
Attached drawing 6 hits the structure diagram of rope pilot system；
The structure diagram of 7 dynamic loading system of attached drawing；
The top view of 8 dynamic loading system of attached drawing；
9 arrester hook of attached drawing hits the left view of moment with collision disk；
The left view of entire experimental rig when 10 arrester hook of attached drawing hits rope experiment；
The left view of entire experimental rig during 11 arrester hook dynamic load of attached drawing.
Figure label title：1st, motor is promoted, 2, column, 3, rack, 4, hanging basket, 5, buffer, 6, buffer ground, 7,
Collide disk, 8, axis, 9, mounting bracket, 10, collision disk ground, 11, axle sleeve, 12, check cable, 13, damper, 14, shaft, 15, folder
Tool, 16, arrester hook, 17, support stand, 18, pressurized strut, 19, lever, 20, extension rod, L, arrester hook system, P, collision stage.
Specific embodiment：
The structure of arrester hook dynamic fatigue test device is as shown in attached drawing 1-8.Here the implementation of the experimental rig will be illustrated
Mode.
The embodiment of arrester hook dynamic fatigue test device is：
(a), carry out adjusting to participate in the experiment first testing, determine the release altitude of hanging basket 4, hung when arrester hook 16 being made to be contacted with collision disk 7
The falling speed of basket 4 reaches required subsidence velocity；Buffer 5 is fluid pressure type, adjusts the oilhole parameter of a pair of of hydraulic bjuffer,
The buffering effect of main landing gear is consistent when so that its buffering effect and ship-board aircraft after being contacted with hanging basket 4 warship；Adjust arrester hook
16 position with colliding disk 7 makes distance of the contact point of 16 gib head of arrester hook and collision disk 7 away from collision disk axis reach predetermined
Value, and gib head first hits collision disk 7, subsequent hanging basket 4 cushion at collision 5 again, situation when this warship with ship-board aircraft are consistent.
(b), start to be promoted after hanging basket 4 is promoted release altitude by motor 1 and lock, with motor collision disk 7 is driven to reach one
Fixed rotating speed so that the linear velocity of predetermined collision area reaches course speed when ship-board aircraft warship on collision disk 7, and disengagement is hung
The locking mechanism on 4 top of basket makes it along 2 free-falling of column, and arrester hook 16 and collision disk 7 collide rebound, while hanging basket 4
Cushion at collision 5 is braked；Required various data are gathered simultaneously and carry out data processing.Arrester hook and collision disk shock moment block
Hinder the state of hook as shown in Figure 9.
(c), start to be promoted after hanging basket 4 is promoted certain altitude by motor 1 and lock, by the axle sleeve 11 with check cable 12
On the axis 8 of collision disk 7.When reaching predetermined rotating speed with motor driving shaft 8, the locking mechanism on 4 top of hanging basket is disengaged, it is high
Speed movement check cable 12 hit arrester hook gib head, arrester hook 16 be knocked after on go to certain angle locking, gather required
Various data simultaneously carry out data processing.Arrester hook hits the state before rope as shown in Figure 10.
(d), horizontal level will be gone on arrester hook 16, lever 19 and arrester hook 16 is connected with extension rod 20, opened
Dynamic pressurized strut 18 is loaded, and the load of loading is to block force curve by calculating processing, gathers required various data simultaneously
Carry out data processing.State when arrester hook loads is as shown in Figure 11.
(e), regarding (b), (c) and (d) three processes are battery of tests, carry out multiplicating experiment, obtain arrester hook 16
Fatigue life.After arrester hook 16 damages, replace testpieces and re-start experiment, and the damaged location of the arrester hook 16 to having damaged
It is analyzed.
Claims (3)
1. arrester hook dynamic fatigue test device, it is characterised in that：
By test bench system, arrester hook system（L）, buffer system, collision stage（P）, hit rope pilot system, dynamic loading system
Composition；
Wherein test bench system includes rack（3）, be installed on the two root posts of rack（2）, be installed on rack（3）Top carries
Lifting motor（1）, promotion motor is installed on by cable wire（1）The hanging basket of lower end（4）, hanging basket（4）It is vertical with described two by bearing
Column（2）It is connected, makes hanging basket（4）It can be along column（2）It slides up and down vertically；
Wherein arrester hook system（L）Including Y type arrester hooks（16）, Y type arrester hooks（16）With two hook arm；It further includes and is fixed on
The hanging basket（4）A pair of of fixture of side（15）, it is respectively mounted that there are one horizontal rotating shafts in each fixture（14）, a damper
（13）；Horizontal rotating shaft（14）It is upper that there is the first auricle and the second auricle；Damper（13）Along hanging basket（4）Side vertical is installed on folder
Tool（15）Interior, its one end is connected with first auricle, other end end and fixture（15）It is connected；Y type arrester hooks（16）Hook arm
It is connected with the first auricle, the other end is free end；Y type arrester hooks（16）The hook arm plane and the horizontal plane that form have it is certain
Angle, the deck angle of arrester hook is corresponding when which warship with the ship-board aircraft simulated；By Y type arrester hooks（16）'s
The line of symmetry of hook arm is used as in the projection of horizontal plane with reference to line；Damper（13）With horizontal rotating shaft（14）And reference line hangs down
Directly；
Wherein buffer system is located at hanging basket（4）Underface, by buffer ground（6）With a pair of of buffer（5）Composition；
Wherein collision stage（P）By collision disk ground（10）, pass through mounting bracket（9）It is installed on collision disk ground（10）On collision disk
（7）, collision disk-drive motor composition；Collide disk（7）It is parallel with horizontal plane, pass through a vertical axis（8）It is connected with mounting bracket,
Its installation site causes arrester hook（16）Gib head and collision disk（7）The point of impingement be located at collision disk（7）Edge, and the line of the point
Direction of the directional velocity along the reference line；
Wherein hitting rope pilot system includes being installed on above-mentioned collision stage（P）Axis（8）On axle sleeve（11）And it is connected to axle sleeve
（11）On two horizontal check cables（12）, check cable（12）It is symmetrically located at axle sleeve（11）Both sides, check cable（12）Length
It is longer than rotating disk（7）Radius；
Wherein dynamic loading system is by support stand（17）, pressurized strut（18）, lever（19）, extension rod（20）Composition；Pressurized strut
（18）Tiltedly stand in support stand（17）On, lever（19）Mounted on support stand（17）On, the first end of lever and pressurized strut
（18）It is connected, the second end and extension rod of lever（20）First end be connected；Carry out extension rod during dynamic loading test（20）Place
In horizontality and its second end and arrester hook（16）It is connected；
Collision stage（P）Between test bench system and dynamic loading system, arrester hook（16）In horizontality with extending
Bar（20）Higher than rope pilot system is hit when being connected, the check cable in rope pilot system is hit（12）During full elongation not with test-bed system
System and dynamic loading system interference.
2. utilize the test method of arrester hook dynamic fatigue test device described in claim 1, it is characterised in that including following
Process：
Arrester hook system will be installed（L）Hanging basket（4）Promote predetermined altitude, hanging basket（4）Under the effect of gravity along column（2）
It freely glides, makes arrester hook（16）Gib head and collision disk（7）Contact to simulate touching for arrester hook and deck when ship-board aircraft warship
Hit process；
Wherein hanging basket（4）Promoting motor（1）Under the action of can be with upward vertical movement；By adjusting hanging basket（4）Freely glide
Preceding release altitude so that hanging basket（4）Falling speed reach the subsidence velocity of ship-board aircraft in collision moment；Adjust arrester hook
（16）With colliding disk（7）Position, make arrester hook（16）Gib head and collision disk（7）Contact point away from collision disk axis distance reach
To predetermined value, and gib head first hits collision disk（7）, and then hanging basket（4）Cushion at collision again（5）, this and ship-board aircraft warship
When situation it is consistent；Collision disk is driven by driving motor（7）It rotates at a high speed, setting collision disk（7）Rotating speed so that arrester hook
（16）Gib head and collision disk（7）The point of impingement at linear velocity reach course speed when ship-board aircraft warship；Arrester hook（16）
With colliding disk（7）It can rebound after collision, with arrester hook（16）It is installed on same level shaft（14）On damper（13）It can press down
Make its rebound；Buffer（5）For simulating the cushioning effect of undercarriage when ship-board aircraft warship, buffer is adjusted（5）Parameter
So that the buffering effect of main landing gear is consistent when its buffering effect warship with ship-board aircraft；
Pass through axis（8）High speed rotation drive check cable（12）It rotates to simulate impact velocity when arrester hook hits rope；From eminence
Put down hanging basket（4）Make arrester hook（16）With high-speed rotating check cable（12）It impacts, hook-rope shock point is in collision disk（7）
On projection overlapped with hook-disk point of impingement, therefore axis when hook-disk impact test and hook-rope impact test（8）Rotating speed be the same
's；
By arrester hook（16）It evens up and hangs over extension rod（20）On, by pressurized strut（18）Dynamic load is carried out, passes through lever（19）With
Extension rod（20）Dynamic load is passed into arrester hook（16）On.
3. the test method of arrester hook dynamic fatigue test device according to claim 2, it is characterised in that can be continuous
Deck shock is carried out successively, is hit rope impact, is blocked power dynamic loading test, simulation once complete warship process.
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| CN105157973B true CN105157973B (en) | 2018-06-05 |
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