CN106338378A - Water surface aircraft real machine seakeeping test method - Google Patents
Water surface aircraft real machine seakeeping test method Download PDFInfo
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- CN106338378A CN106338378A CN201510557466.6A CN201510557466A CN106338378A CN 106338378 A CN106338378 A CN 106338378A CN 201510557466 A CN201510557466 A CN 201510557466A CN 106338378 A CN106338378 A CN 106338378A
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Abstract
A water surface aircraft real machine seakeeping test method comprises the following steps: (a) preparation before a water surface aircraft real machine test; (b) installation and debugging of test instruments and equipment; and (c) the water surface aircraft real machine test. The water surface aircraft real machine seakeeping test method has the advantages of being practical, feasible, simple in operation, reliable in testing results, and wide in application range.
Description
Technical field
The present invention relates to aircraft field is and in particular to a kind of water surface flying device real machine seakeeping test method.
Background technology
Water surface flying device sea-keeping refers in any normal running speed on water surface wave, water surface flying device must not adventurous or uncontrollable kinetic characteristic, be to weigh one of important technology index of water surface flying device hydrodynamic(al) performance.Require to significantly improve now with water surface flying device range, higher requirement be it is also proposed to its sea-keeping.For verifying water surface flying device sea-keeping, mainly seakeeping test is carried out by water surface flying device pond scale model at present, basin test is carried out by scale model, pass judgment on the sea-keeping of water surface flying device, water surface flying device seakeeping test is the checking to pond scale model seakeeping test and perfect again.
Water surface flying device seakeeping test is carried out fully according to the hydroplaning situation of actual aircraft, the sea-keeping of aircraft is judged by observing aircraft motion state, movement locus, attitudes vibration etc. in taxiing procedures.Also there is not a kind of water surface flying device real machine seakeeping test method of practicality at present.
Content of the invention
The purpose of the present invention is aiming at deficiency above-mentioned at present, and provides a kind of water surface flying device seakeeping test method.
Test procedure of the present invention is as follows:
A) prepare before water surface flying device real machine test:
Selected suitable test waters, test waters length should be greater than 30n mile × 30n mile, and sea is open, and described test waters is suitable for the coasting distance of aircraft, and width will facilitate aircraft to turn and turn around；
With reference to water surface flying device model basin seakeeping test state, real machine is carried out with the counterweight of corresponding trystate and the debugging of center of gravity inertia, generally: real machine position of centre of gravity must not overproof 1%, weight must not overproof 2%, inertia must not overproof 5%；
Real machine hydrostatic floading condition should be with reference to water surface flying device model basin stability test hydrostatic floading condition, and attitude error is less than 0.1 degree；
Engine answers break-in fully, and carries out thrust test, the relation between record thrust t and rotating speed n, power p；
Flap angle is fixed as aircraft takeoff flap angle, and elevator is initially 0 degree；
B) water surface flying device real machine test:
1) aircraft ground status checkout, it is ensured that aircraft trystate is normal, can be tested, be tested with minimum take-off weight；
2) aircraft initial hydrostatic status checkout, the original trim angle of record aircraft
, initial Angle of Heel , bow aft draft and faulted-stage draft；
3) the hot car of aircraft engine, records engine speed n, pulling force t, power p；
4) wave relatively tested, is then atried to highest speed and bow sea test to typically 180 ° to 0 ° to be spaced the 45 ° or 30 ° tests taking 57 courses and zero-speed athwart sea
5) weather condition in viewing test waters, unrestrained high situation, records relevant environmental data；
6) observation flight device resistance to wave-form test state, record correlation test data and experimental phenomena；
C) test data analyzer personnel carry out Seakeeping capacity analysis according to tests below record case:
1) statistical value of wave height, histogram and ocean wave spectrum；
2) water surface flying device motion amplitude statistical value, histogram and autopower spectral density under each course and the speed of a ship or plane；
3) statistical value of the various stress amplitude of water surface flying device and autopower spectral density under each course and the speed of a ship or plane；
4) maximum of bow impact acceleration；
5) occurrence frequency of the water outlet of bow bottom and slamming；
6) in wave oar axle moment of torsion and shaft power change；
7) according to test data and experimental phenomena, and judge that weighing apparatus standard judges to real machine stability according to water surface flying device sea-keeping.
The method have the advantages that: the method is practical, feasible, simple to operate, and result of the test is reliable, applied widely.
Specific embodiment
Test principle of the present invention is as follows:
Mainly pass through motion conditions during wave for the observation flight device in real machine seakeeping test.Track, state, testing flying vehicle all directions attitude angle, acceleration, the isoparametric change of load.Judge that weighing apparatus standard judges to aircraft sea-keeping according to experimental phenomena and test data with reference to sea-keeping.
Test procedure of the present invention is as follows:
A) prepare before water surface flying device real machine test:
Selected suitable test waters, test waters length should be greater than 30n mile × 30n mile, and sea is open, and described test waters is suitable for the coasting distance of aircraft, and width will facilitate aircraft to turn and turn around；
With reference to water surface flying device model basin seakeeping test state, real machine is carried out with the counterweight of corresponding trystate and the debugging of center of gravity inertia, generally: real machine position of centre of gravity must not overproof 1%, weight must not overproof 2%, inertia must not overproof 5%；
Real machine hydrostatic floading condition should be with reference to water surface flying device model basin stability test hydrostatic floading condition, and attitude error is less than 0.1 degree；
Engine answers break-in fully, and carries out thrust test, the relation between record thrust t and rotating speed n, power p；
Flap angle is fixed as aircraft takeoff flap angle, and elevator is initially 0 degree；
B) water surface flying device real machine test:
1) aircraft ground status checkout, it is ensured that aircraft trystate is normal, can be tested, be tested with minimum take-off weight；
2) aircraft initial hydrostatic status checkout, the original trim angle of record aircraft , initial Angle of Heel , bow aft draft and faulted-stage draft；
3) the hot car of aircraft engine, records engine speed n, pulling force t, power p；
4) wave relatively tested, is then atried to highest speed and bow sea test to typically 180 ° to 0 ° to be spaced the 45 ° or 30 ° tests taking 57 courses and zero-speed athwart sea
5) weather condition in viewing test waters, unrestrained high situation, records relevant environmental data；
6) observation flight device resistance to wave-form test state, record correlation test data and experimental phenomena；
C) test data analyzer personnel carry out Seakeeping capacity analysis according to tests below record case:
1) statistical value of wave height, histogram and ocean wave spectrum；
2) water surface flying device motion amplitude statistical value, histogram and autopower spectral density under each course and the speed of a ship or plane；
3) statistical value of the various stress amplitude of water surface flying device and autopower spectral density under each course and the speed of a ship or plane；
4) maximum of bow impact acceleration；
5) occurrence frequency of the water outlet of bow bottom and slamming；
6) in wave oar axle moment of torsion and shaft power change；
7) according to test data and experimental phenomena, and judge that weighing apparatus standard judges to real machine stability according to water surface flying device sea-keeping.
Test apparatus rigging up and debugging:
Instrument for testing equipment should be qualified and be in regulation effective period through measurement verification according to the regulation of national measurement method, and its range is adapted with the requirement of precision and testing inspection.
Reply all appts equipment energising detection before test, and verified and demarcate.Guarantee that instrument and equipment should maintain a good state during testing ground waits to try.
Tester equipment should be installed according to the requirement of test event and associative operation code and go up (must not destroy Flight Vehicle Structure, profile) in place, and it should be noted that waterproof, antidetonation, prevent because the factors such as loosening, electromagnetic interference and external environment affect the correctness of test result in process of the test, gyroscope should be arranged near aircraft center of gravity as far as possible.
Claims (1)
1. a kind of water surface flying device real machine seakeeping test method is it is characterised in that test procedure is as follows:
A) prepare before water surface flying device real machine test:
Selected suitable test waters, test waters length should be greater than 30n mile × 30n
Mile, and sea is open, described test waters is suitable for the coasting distance of aircraft, and width will facilitate aircraft to turn and turn around；
With reference to water surface flying device model basin seakeeping test state, real machine is carried out with the counterweight of corresponding trystate and the debugging of center of gravity inertia, generally: real machine position of centre of gravity must not overproof 1%, weight must not overproof 2%, inertia must not overproof 5%；
Real machine hydrostatic floading condition should be with reference to water surface flying device model basin stability test hydrostatic floading condition, and attitude error is less than 0.1 degree；
Engine answers break-in fully, and carries out thrust test, the relation between record thrust t and rotating speed n, power p；
Flap angle is fixed as aircraft takeoff flap angle, and elevator is initially 0 degree；
B) water surface flying device real machine test:
1) aircraft ground status checkout, it is ensured that aircraft trystate is normal, can be tested, be tested with minimum take-off weight；
2) aircraft initial hydrostatic status checkout, the original trim angle of record aircraft
, initial Angle of Heel
, bow aft draft and faulted-stage draft；
3) the hot car of aircraft engine, records engine speed n, pulling force t, power p；
4) wave relatively tested, is then atried to highest speed and bow sea test to typically 180 ° to 0 ° to be spaced the 45 ° or 30 ° tests taking 57 courses and zero-speed athwart sea
5) weather condition in viewing test waters, unrestrained high situation, records relevant environmental data；
6) observation flight device resistance to wave-form test state, record correlation test data and experimental phenomena；
C) test data analyzer personnel carry out Seakeeping capacity analysis according to tests below record case:
1) statistical value of wave height, histogram and ocean wave spectrum；
2) water surface flying device motion amplitude statistical value, histogram and autopower spectral density under each course and the speed of a ship or plane；
3) statistical value of the various stress amplitude of water surface flying device and autopower spectral density under each course and the speed of a ship or plane；
4) maximum of bow impact acceleration；
5) occurrence frequency of the water outlet of bow bottom and slamming；
6) in wave oar axle moment of torsion and shaft power change；
7) according to test data and experimental phenomena, and judge that weighing apparatus standard judges to real machine stability according to water surface flying device sea-keeping.
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| CN201510557466.6A CN106338378A (en) | 2015-09-05 | 2015-09-05 | Water surface aircraft real machine seakeeping test method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101205296B1 (en) * | 2012-06-19 | 2012-11-27 | 이상림 | A performance testing machine and test method of anti-rolling tank for ship |
| CN103837321A (en) * | 2013-11-18 | 2014-06-04 | 中国特种飞行器研究所 | Stability testing method of water surface aircraft real machine |
| CN104596731A (en) * | 2014-06-26 | 2015-05-06 | 中国特种飞行器研究所 | Surface aircraft seakeeping whole-machine power model water basin test method |
-
2015
- 2015-09-05 CN CN201510557466.6A patent/CN106338378A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101205296B1 (en) * | 2012-06-19 | 2012-11-27 | 이상림 | A performance testing machine and test method of anti-rolling tank for ship |
| CN103837321A (en) * | 2013-11-18 | 2014-06-04 | 中国特种飞行器研究所 | Stability testing method of water surface aircraft real machine |
| CN104596731A (en) * | 2014-06-26 | 2015-05-06 | 中国特种飞行器研究所 | Surface aircraft seakeeping whole-machine power model water basin test method |
Non-Patent Citations (2)
| Title |
|---|
| 仲国浩: "水上飞机自航模型的耐波性试验综述", 《中国造船》 * |
| 褚林塘: "《水上飞机水动力设计》", 30 November 2014 * |
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Application publication date: 20170118 |