CN105157973A - Arresting hook dynamic fatigue testing device and testing method - Google Patents
Arresting hook dynamic fatigue testing device and testing method Download PDFInfo
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- CN105157973A CN105157973A CN201510562287.1A CN201510562287A CN105157973A CN 105157973 A CN105157973 A CN 105157973A CN 201510562287 A CN201510562287 A CN 201510562287A CN 105157973 A CN105157973 A CN 105157973A
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Abstract
The invention provides an arresting hook dynamic fatigue testing device and testing method, belonging to a testing device and a testing method and particularly relating to the technical field of fatigue service life detection after an arresting hook is subjected to impact loading when a carrier plane lands on a ship. The testing device includes a testing stand system composed of a stand (3), a column (2), a lifting motor (1), and a hanging basket (4), and further includes a buffer system composed of a buffer (5) and a buffer base (6), a bump testing system composed of an arresting hook system L and a bump table P, a cable bumping testing system composed of a bump table P, a shaft sleeve (11), and an arresting cable (12), and a dynamic loading system composed of a support stand (17), an actuating cylinder (18), a lever (19), and an extension rod (20). The arresting hook dynamic fatigue testing device and testing method realize the stimulation of load-bearing conditions of deck bumping of the arresting hook, cable humping impact, and arresting force dynamic loading, perform multi-time repeated tests, and predict the fatigue service life of the arresting hook.
Description
Technical field
The invention belongs to a kind of test unit and test method, be particularly applicable to the technical field that arrester hook when warship by ship-board aircraft is subject to fatigue life prediction after shock load.
Technical background
Arrester hook is the significantly difference of ship-board aircraft than land airplane, and its Main Function is after aircraft is marched into the arena smoothly, hook aircraft carrier check cable, is delivered on fuselage by the power of blocking, and forces aircraft.Usually, when warship by ship-board aircraft, arrester hook collides with deck at first, and under the effect of arrester hook longitudinal damper, there is the spring of limited height, simultaneously, under aircraft convected motion, gib head with slightly exceed the unsettled horizontal check cable of deck surface and engage, check cable system and block machine and start working, aircraft is blocked in limited distance and stops.
Arrester hook is as the unique parts connecting aircraft and warship face check cable, and its Fatigue Life Problems directly determines the security of aircraft.Arrester hook the load will born in warship process and be several times as much as Aircraft Quality at ship-board aircraft, and various complicated enchancement factor when being subject to warship affects, loading is complicated and changeable, this just causes the arrester hook life-span short, harm is large, and its Fatigue Life Problems complicated mechanism, want to predict that the fatigue lifetime of arrester hook is very difficult.
External research in arrester hook load has the history of decades, very ripe.If the U.S. is in the carrier-borne suitability flight test of ship-board aircraft, carries out a large amount of arrester hook load actual measurements, defined specification; USN has carried out experimental study to the corrosion fatigue of arrester hook, but this test carries out static loading to arrester hook, does not consider that dynamic load is on the impact of arrester hook fatigue.And the ship-board aircraft of China is in the early stage of development, also the condition of not carrying out does not carry out measured test on a large amount of warships, the problems such as also dangerous property is high, difficulty large for continental rise flight test, somewhat expensive.
In order to predict the fatigue lifetime of arrester hook under the changeable load of Various Complex, simulate the loading conditions that arrester hook in warship process by ship-board aircraft truly, devise a set of arrester hook dynamic fatigue test device, this test unit can carry out deck shock continuously successively, hits rope impact, block power dynamic loading test, simulation is complete warship process once, test effect and actual conditions close.So just can predict the fatigue lifetime of arrester hook when there is no on warship test and land-based test, solve dangerous high, difficulty greatly, the problem of somewhat expensive.
China carries out a small amount of continental rise flight test obtaining dynamic response when arrester hook blocks in recent years, but these tests are all the arrester hooks for a certain specific model and correspondence thereof, and data are very limited.This test unit realizes the loading conditions of arrester hook when warship by simulation ship-board aircraft to greatest extent, meets the testing requirements of different ship-board aircraft and different arrester hook, in published document, does not also occur similar test unit.
Summary of the invention
Object of the present invention: for ship-board aircraft, on warship test and land-based test difficulty large when, devise a set of arrester hook dynamic fatigue test device, efficiently solve ship-board aircraft and the problem that arrester hook in warship process is difficult to prediction fatigue lifetime.
Technical scheme of the present invention comprises: test unit by test bench system, arrester hook system, buffer system, collision stage, hit rope pilot system, dynamic loading system forms, the hanging basket that test bench system is comprised stand, is installed on two root posts of stand, is installed on the lifting motor on stand top, is installed on lifting motor lower end by cable wire, hanging basket is connected with described two root posts by bearing, makes it vertically can slide up and down along column; Arrester hook system comprises Y type arrester hook, and Y type arrester hook has two hook arm; Also comprise a pair fixture being fixed on described hanging basket side, a horizontal rotating shaft, a damper are all installed in each fixture; Horizontal rotating shaft have the first auricle and the second auricle; Damper is installed in fixture along hanging basket side vertical, and its one end is connected with described first auricle, and other end end is connected with fixture; The hook arm of Y type arrester hook is connected with the first auricle, and the other end is free end; The plane that the hook arm of Y type arrester hook is formed and surface level have certain angle, and when warship by this angular dimension and simulated ship-board aircraft, the angle, deck of arrester hook is corresponding; Using the line of symmetry of the hook arm of Y type arrester hook in the projection of surface level as with reference to line; Damper and horizontal rotating shaft and reference line all vertical; Buffer system is positioned at immediately below hanging basket, is made up of impact damper ground and a pair impact damper; Collision stage coils ground by colliding, the collision dish be installed on by erecting frame on collision dish ground, collision disk-drive motor are formed, collision dish and plane-parallel, be connected with erecting frame by a vertical axle, its installation site makes the point of impingement of arrester hook gib head and collision dish be positioned at the edge of collision dish, and the linear velocity direction of this point is along the direction of described reference line; Hit rope pilot system to comprise the axle sleeve on the axle being installed on above-mentioned collision stage and be connected to two horizontal check cables on axle sleeve, check cable is symmetrically located at axle sleeve both sides, and the length of check cable is longer than the radius of rotating disc; Dynamic loading system is made up of support stand, pressurized strut, lever, extension rod, and pressurized strut tiltedly stands on support stand, and lever is arranged on support stand, and the first end of lever is connected with pressurized strut, and the second end of lever is connected with the first end of extension rod; When carrying out dynamic loading test, extension rod is in horizontality and its second end is connected with arrester hook; Collision stage is between test bench system and dynamic loading system, and arrester hook is in higher than hitting rope pilot system when horizontality is connected with extension rod, does not interfere when the check cable hit in rope pilot system extends entirely with test bench system and dynamic loading system.
Test method comprises following process:
Simulation arrester hook clashes into deck testing: will be provided with the lifting of hanging basket of arrester hook system to predetermined altitude, hanging basket freely glides along column under gravity, the collision process on arrester hook and deck when arrester hook gib head being contacted simulate ship-board aircraft warship with collision dish; Hanging basket can upward vertical movement under the effect of lifting motor; Release altitude before freely being glided by adjustment hanging basket, makes the falling speed of hanging basket reach the rate of sinking of ship-board aircraft at collision moment; The position of adjustment arrester hook and collision dish, the distance making the contact point of arrester hook gib head and collision dish distance collide disk axis reaches predetermined value, and gib head first clashes into collision dish, and then hanging basket cushion at collision again, and situation when warship by this and ship-board aircraft is consistent; Drive collision dish High Rotation Speed by drive motor, the rotating speed of setting collision dish, make the linear velocity at the point of impingement place of arrester hook gib head and collision dish reach course speed when warship by ship-board aircraft; Arrester hook and collision dish collision rift can rebound, and the damper be installed in same level rotating shaft with arrester hook can suppress it to rebound; Impact damper is for simulating the buffer action of undercarriage when warship by ship-board aircraft, and when the parameter of adjustment impact damper makes its buffering effect and ship-board aircraft warship, the buffering effect of main landing gear is consistent;
Hit rope impulse test: impact velocity when driving check cable to rotate to simulate arrester hook to hit rope by the High Rotation Speed of axle; Putting down hanging basket from eminence makes the check cable of arrester hook and High Rotation Speed impact, and the projection of hook-Suo shock point on collision dish overlaps with hook-dish point of impingement, and when therefore hook-dish impact test and hook-Suo impulse test, the rotating speed of axle is the same;
Block power dynamic loading test: evened up by arrester hook and hang on extension rod, carry out dynamic load by pressurized strut, passed on arrester hook by dynamic load by lever and extension rod.
Beneficial effect of the present invention:
(a) realize in the lab simulate arrester hook clash into deck test, hit rope impulse test and block power dynamic loading test, solve ship-board aircraft arrester hook loading conditions in warship process be difficult to simulate problem;
B () this test unit realizes simulating arrester hook in the short time successively and clashes into deck, hit rope impact and block power dynamic load three kinds of dynamic processes, to greatest extent simulation actual the loading conditions of arrester hook of warship process, carry out repeatedly revision test, the fatigue lifetime of prediction arrester hook;
C () this test unit is applicable to different the ship-board aircraft of warship speed, be also applicable to multi-form arrester hook simultaneously.
Accompanying drawing explanation
The structural representation of accompanying drawing 1 arrester hook dynamic fatigue test device;
The front elevation of accompanying drawing 2 arrester hook dynamic fatigue test device;
The structural representation of accompanying drawing 3 arrester hook system and buffer system;
The left view of accompanying drawing 4 arrester hook system and buffer system;
The structural representation of accompanying drawing 5 collision stage;
Accompanying drawing 6 hits the structural representation of rope pilot system;
The structural representation of accompanying drawing 7 dynamic loading system;
The vertical view of accompanying drawing 8 dynamic loading system;
Accompanying drawing 9 arrester hook and collision dish clash into the left view of moment;
Accompanying drawing 10 arrester hook hits the left view of whole test unit when rope is tested;
The left view of whole test unit during accompanying drawing 11 arrester hook dynamic load.
Number in the figure title: 1, lifting motor, 2, column, 3, stand, 4, hanging basket, 5, impact damper, 6, impact damper ground, 7, collision dish, 8, axle, 9, erecting frame, 10, collision dish ground, 11, axle sleeve, 12, check cable, 13, damper, 14, rotating shaft, 15, fixture, 16, arrester hook, 17, support stand, 18, pressurized strut, 19, lever, 20, extension rod, L, arrester hook system, P, collision stage.
embodiment:
The structure of arrester hook dynamic fatigue test device is as shown in accompanying drawing 1-8.Here the embodiment of this test unit will be described.
The embodiment of arrester hook dynamic fatigue test device is:
(a), first carry out tune and participate in the experiment and test, determine the release altitude of hanging basket 4, when arrester hook 16 is contacted with collision dish 7, the falling speed of hanging basket 4 reaches required rate of sinking; Impact damper 5 is fluid pressure type, adjusts the oilhole parameter of a pair bydraulic buffers, and when warship by the buffering effect after making it contact with hanging basket 4 and ship-board aircraft, the buffering effect of main landing gear is consistent; The position of adjustment arrester hook 16 and collision dish 7, the contact point of arrester hook 16 gib head and collision dish 7 is made to reach predetermined value apart from the distance of colliding disk axis, and gib head first clashes into collision dish 7, hanging basket 4 cushion at collision 5 more subsequently, situation when warship by this and ship-board aircraft is consistent.
B (), startup lifting motor 1 lock after hanging basket 4 is risen to release altitude, collision dish 7 is driven to reach certain rotating speed with motor, the linear velocity of predetermined collision area on collision dish 7 is made to reach course speed when warship by ship-board aircraft, throw off the locking mechanism on hanging basket 4 top, make it along column 2 free-falling, arrester hook 16 and collision dish 7 collide and rebound, and hanging basket 4 cushion at collision 5 is braked simultaneously; Gather required various data simultaneously and carry out data processing.Arrester hook and collision dish clash into the state of moment arrester hook as shown in Figure 9.
C (), startup lifting motor 1 lock after hanging basket 4 is risen to certain altitude, be arranged on the axle 8 of collision dish 7 by the axle sleeve 11 with check cable 12.When reaching predetermined rotating speed with motor driving shaft 8, throw off the locking mechanism on hanging basket 4 top, the check cable 12 of high-speed motion clashes into arrester hook gib head, arrester hook 16 be knocked rear on go to certain angle locking, the various data needed for collection also carry out data processing.Arrester hook hits the state before rope as shown in Figure 10.
(d), go to horizontal level by arrester hook 16, with extension rod 20, lever 19 and arrester hook 16 are coupled together, start pressurized strut 18 to load, the load of loading is block force curve through computing, and the various data needed for collection also carry out data processing.State when arrester hook loads as shown in Figure 11.
(e), look (b), (c) and (d) three processes are battery of tests, carry out repeatedly revision test, obtain the fatigue lifetime of arrester hook 16.After arrester hook 16 damages, change testpieces and re-start test, and the damaged location of the arrester hook 16 damaged is analyzed.
Claims (3)
1. arrester hook dynamic fatigue test device, is characterized in that:
By test bench system, arrester hook system (L), buffer system, collision stage (P), hit rope pilot system, dynamic loading system forms;
The wherein test bench system hanging basket (4) that comprises stand (3), be installed on two root posts (2) of stand, be installed on the lifting motor (1) on stand (3) top, be installed on lifting motor (1) lower end by cable wire, hanging basket (4) is connected with described two root posts (2) by bearing, and hanging basket (4) vertically can be slided up and down along column (2);
Wherein arrester hook system (L) comprises Y type arrester hook (16), and Y type arrester hook (16) has two hook arm; Also comprise a pair fixture (15) being fixed on described hanging basket (4) side, a horizontal rotating shaft (14), a damper (13) are all installed in each fixture; Horizontal rotating shaft (14) have the first auricle and the second auricle; Damper (13) is installed in fixture (15) along hanging basket (4) side vertical, and its one end is connected with described first auricle, and other end end is connected with fixture (15); The hook arm of Y type arrester hook (16) is connected with the first auricle, and the other end is free end; The plane that the hook arm of Y type arrester hook (16) is formed and surface level have certain angle, and when warship by this angular dimension and simulated ship-board aircraft, the angle, deck of arrester hook is corresponding; Using the line of symmetry of the hook arm of Y type arrester hook (16) in the projection of surface level as with reference to line; Damper (13) and horizontal rotating shaft (14) and reference line all vertical;
Wherein buffer system is positioned at immediately below hanging basket (4), is made up of impact damper ground (6) and a pair impact damper (5);
Wherein collision stage (P) coil ground (10) by collision, the collision dish (7) be installed on by erecting frame (9) on collision dish ground (10), collision disk-drive motor form; Collision dish (7) and plane-parallel, be connected with erecting frame by a vertical axle (8), its installation site makes the point of impingement of arrester hook (16) gib head and collision dish (7) be positioned at the edge of collision dish (7), and the linear velocity direction of this point is along the direction of described reference line;
Wherein hit rope pilot system comprise be installed on above-mentioned collision stage (P) axle (8) on axle sleeve (11) and two horizontal check cables (12) being connected on axle sleeve (11), check cable (12) is symmetrically located at axle sleeve (11) both sides, and the length of check cable (12) is longer than the radius of rotating disc (7);
Wherein dynamic loading system is by support stand (17), pressurized strut (18), lever (19), and extension rod (20) forms; Pressurized strut (18) tiltedly stands on support stand (17), and lever (19) is arranged on support stand (17), and the first end of lever is connected with pressurized strut (18), and the second end of lever is connected with the first end of extension rod (20); When carrying out dynamic loading test, extension rod (20) is in horizontality and its second end is connected with arrester hook (16);
Collision stage (P) is between test bench system and dynamic loading system, arrester hook (16) is in higher than hitting rope pilot system when horizontality is connected with extension rod (20), does not interfere when the check cable (12) hit in rope pilot system extends entirely with test bench system and dynamic loading system.
2. utilize the test method of the arrester hook dynamic fatigue test device described in claim 1, it is characterized in that comprising following process:
The hanging basket (4) being provided with arrester hook system (L) is risen to predetermined altitude, hanging basket (4) freely glides along column (2) under gravity, the collision process on arrester hook and deck when arrester hook (16) gib head being contacted simulate ship-board aircraft warship with collision dish (7);
Wherein hanging basket (4) can upward vertical movement under the effect of lifting motor (1); Release altitude before freely being glided by adjustment hanging basket (4), makes the falling speed of hanging basket (4) reach the rate of sinking of ship-board aircraft at collision moment; The position of adjustment arrester hook (16) and collision dish (7), the contact point of arrester hook (16) gib head and collision dish (7) is made to reach predetermined value apart from the distance of colliding disk axis, and gib head first clashes into collision dish (7), and then hanging basket (4) cushion at collision (5) again, situation when warship by this and ship-board aircraft is consistent; Drive collision dish (7) High Rotation Speed by drive motor, the rotating speed of setting collision dish (7), make the linear velocity at the point of impingement place of arrester hook (16) gib head and collision dish (7) reach course speed when warship by ship-board aircraft; Arrester hook (16) and collision dish (7) collision rift can rebound, and the damper (13) be installed in same level rotating shaft (14) with arrester hook (16) can suppress it to rebound; Impact damper (5) is for simulating the buffer action of undercarriage when warship by ship-board aircraft, and when the parameter of adjustment impact damper (5) makes its buffering effect and ship-board aircraft warship, the buffering effect of main landing gear is consistent;
Impact velocity when driving check cable (12) to rotate to simulate arrester hook to hit rope by the High Rotation Speed of axle (8); Putting down hanging basket (4) from eminence makes arrester hook (16) impact with the check cable (12) of High Rotation Speed, the projection of hook-Suo shock point on collision dish (7) overlaps with hook-dish point of impingement, and when therefore hook-dish impact test and hook-Suo impulse test, the rotating speed of axle (8) is the same;
Being evened up by arrester hook (16) hangs on extension rod (20), carries out dynamic load by pressurized strut (18), is passed on arrester hook (16) by dynamic load by lever (19) and extension rod (20).
3. the test method of arrester hook dynamic fatigue test device according to claim 2, it is characterized in that can carrying out deck shock continuously successively, hit rope impact, block power dynamic loading test, simulation is complete warship process once, test effect and actual conditions close, and almost there is no the complicated process that changes the outfit, save the time, considerably increase the feasibility of dynamic fatigue test.
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| CN106092527A (en) * | 2016-05-30 | 2016-11-09 | 大连理工大学 | The loading method of full face rock tunnel boring machine cutter plate driver testing stand |
| CN107748102A (en) * | 2017-11-29 | 2018-03-02 | 中国航空工业集团公司济南特种结构研究所 | It is a kind of to apply the balanced method for drawing load to radome |
| CN108760264A (en) * | 2018-05-28 | 2018-11-06 | 南京航空航天大学 | A kind of arrester hook folding and unfolding buffering multi-function test stand and its test method |
| CN110371319A (en) * | 2019-07-26 | 2019-10-25 | 南京航空航天大学 | Wheel presses rope experimental rig |
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| CN112763196A (en) * | 2020-12-25 | 2021-05-07 | 江苏师范大学 | Impact slip test device for shipboard aircraft arresting cable |
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| CN116946388A (en) * | 2023-09-19 | 2023-10-27 | 中国飞机强度研究所 | Electromagnetic ejection-based carrier-based aircraft arresting hook carrier landing impact test equipment and method |
| CN117073957A (en) * | 2023-10-13 | 2023-11-17 | 中国飞机强度研究所 | Ship-borne aircraft load measurement and ship surface characteristic simulation device and method |
| CN117087872A (en) * | 2023-10-19 | 2023-11-21 | 中国飞机强度研究所 | Buffer method and buffer system for dynamic response test of impact of blocking hook of carrier-based aircraft |
| CN117109861A (en) * | 2023-10-24 | 2023-11-24 | 中国飞机强度研究所 | System and method for measuring ground load and simulating heading speed of full-machine landing impact |
| CN117125266A (en) * | 2023-10-26 | 2023-11-28 | 中国飞机强度研究所 | Device and method for simulating bouncing of aircraft arresting hook in marine corrosion environment |
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| CN117109861B (en) * | 2023-10-24 | 2024-01-09 | 中国飞机强度研究所 | System and method for measuring ground load and simulating heading speed of full-machine landing impact |
| CN117125266B (en) * | 2023-10-26 | 2024-01-05 | 中国飞机强度研究所 | Device and method for simulating bouncing of aircraft arresting hook in marine corrosion environment |
| CN117125266A (en) * | 2023-10-26 | 2023-11-28 | 中国飞机强度研究所 | Device and method for simulating bouncing of aircraft arresting hook in marine corrosion environment |
| CN117168748B (en) * | 2023-11-03 | 2024-01-05 | 中国飞机强度研究所 | Ship-borne aircraft arresting hook head abrasion test device and method |
| CN117168748A (en) * | 2023-11-03 | 2023-12-05 | 中国飞机强度研究所 | Ship-borne aircraft arresting hook head abrasion test device and method |
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| CN105157973B (en) | 2018-06-05 |
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