CN104019950A - Testing system for testing vibration fatigue performance of aircraft fuel tank - Google Patents
Testing system for testing vibration fatigue performance of aircraft fuel tank Download PDFInfo
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- CN104019950A CN104019950A CN201410212383.9A CN201410212383A CN104019950A CN 104019950 A CN104019950 A CN 104019950A CN 201410212383 A CN201410212383 A CN 201410212383A CN 104019950 A CN104019950 A CN 104019950A
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Abstract
A testing system for testing vibration fatigue performance of an aircraft fuel tank is composed of an electromagnetic vibrator, a sample clamp, a signal output unit, a stabilized voltage supply, a frequency meter, a resistance strain gage, a dynamic resistance strain gauge, a sample and a clump weight. The clump weight is installed in the middle of the sample. The sample is mounted on the sample clamp, and pretension force can be applied by screwing studs on the sample clamp. The sample clamp is installed on the electromagnetic vibrator. The stabilized voltage supply is connected with the signal output unit. The signal output unit is connected with the electromagnetic vibrator so as to control the electromagnetic vibrator. The stabilized voltage supply is simultaneously connected with the frequency meter so as to monitor output excitation frequency. The resistance strain gage adhered to the sample is connected with a dynamic strain meter so as to monitor strain of the sample. The dynamic resistance strain gauge is connected with the frequency meter so as to monitor response frequency of the sample. The testing system has a simple structure, is convenient to operate and is used for testing vibration fatigue performance of an aircraft fuel tank. A test result has important engineering application value for evaluation of structure fatigue life.
Description
Technical field
The pilot system that the present invention relates to a kind of testing airplane tank vibrating fatigue performance, belongs to experimental test technical field.
Background technology
In actual use, because of rocking of engine rotor excitation, flow perturbation and oil, fuel tanker can vibrate, thereby, cause vibrating fatigue to be destroyed.For ensureing its security, need the vibrating fatigue performance of testing airplane tank, yet, conventional fatigue tester can only be for axial tension/repeated compression test, for existing pretension, there is again the fuel tanker of the internal stress that vibratory response causes, still lack effective vibration fatigue test system.For this reason, the present invention is integrated into electromagnetic vibration generator system, specimen holder, signal output device, stabilized voltage supply device, calculating formula frequency meter, resistance strain gage, dynamic resistance strain instrument and sample the pilot system of fuel tanker vibrating fatigue performance, for the test of fuel tanker vibrating fatigue performance test, for structure fatigue life, evaluation has important engineering using value to test result.
Summary of the invention
1, object: the object of the present invention is to provide a kind of pilot system of testing airplane tank vibrating fatigue performance, for the experimental test of fuel tanker vibrating fatigue performance.
2, technical scheme: the pilot system of a kind of testing airplane tank vibrating fatigue of the present invention performance, is comprised of electromagnetic vibration generator system, specimen holder, signal output device, stabilized voltage supply device, frequency meter, resistance strain gage, dynamic resistance strain instrument, sample and balancing weight.Position annexation between them is as follows: balancing weight is arranged on the centre of sample; Sample is arranged on specimen holder; Specimen holder is arranged on electromagnetic vibration generator system; Stabilized voltage supply device is connected with signal output device; Signal output device is connected that with electromagnetic vibration generator system electromagnetic vibration generator system is controlled; Stabilized voltage supply device is connected to monitor output drive frequency simultaneously with frequency meter; The resistance strain gage sticking on sample is connected with dynamic strain indicator, to monitor the strain of sample; Dynamic resistance strain instrument is connected to monitor the response frequency of sample with frequency meter.
Described electromagnetic vibration generator system is the vibration table with electromagnetic vibration generator that is casing shape, in order to sample is applied to oscillating load, the load range of shaking table need be greater than the test load of sample, can be conventional ZS-10D type electromagnetic vibration generator system or self-control electromagnetic vibration generator system.
Described sample is the fuel tanker vibrating fatigue sample of various different materials and type, and this sample is bars, and both sides are connected with right angle sheet metal component by forms such as spot welding respectively, with base plate and the dividing plate of simulated aircraft fuel tank.Sample two ends also have respectively a bare terminal end, respectively have two fastener holes on bare terminal end and right angle sheet metal component, by securing members such as bolts, are mounted and fixed on fixture, and there are two holes at sample middle part for balancing weight is installed.The size and dimension of sample can design according to concrete fuel tanker.
Described specimen holder is the long table concavity part with slide block, in order to clamping sample to be installed, and by slide block, sample is applied to pretension, and need be according to the shape and size Design and manufacture of sample holder end, specimen holder is arranged on electromagnetic vibration generator system so that sample is applied to oscillating load.
Described balancing weight is rectangular parallelepiped alloy bloom, is arranged on the centre of style by bolt, for generation of vibration, sample is applied to oscillating load.
Described stabilized voltage supply device is for electromagnetic vibration generator system provides the electronic installation of stablizing AC power, can be DY-15 type or other conventional stabilized voltage supply devices.
Described signal output device is the device that electromagnetic vibration generator system is controlled, and general and electromagnetic vibration generator system supports the use.
Described frequency meter is a kind of electrometer formula frequency meter, for monitoring vibration frequency and recording cycle index.
Described resistance strain gage is a kind of chip component for monitor strain, the variation of strain on member can be converted to resistance variations, conventionally sticks on test specimen surface.
Described dynamic resistance strain instrument is a kind of connection with resistance strain gage for measuring the instrument of sample strain, can measure in real time the dynamic strain of sample.
All devices, according to after testing requirements connection and debugging, just can complete fuel tanker vibration fatigue test test according to concrete testing requirements.This cover system efficiently solves fuel tanker vibration fatigue test test problem.
3, advantage and effect: the invention has the beneficial effects as follows the experimental test that can complete fuel tanker structural vibration fatigue behaviour, and this system has the easy to operate and high feature of measuring accuracy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is fuel tanker vibrating fatigue sample schematic diagram.
Fig. 2 is specimen holder schematic diagram.
Fig. 3 is electromagnetic vibration generator system schematic diagram.
Fig. 4 is fuel tanker vibrating fatigue Performance Test System structural drawing.
In Fig. 4: 1. resistance strain gage, 2. balancing weight, 3. sample, 4. specimen holder, 5. electromagnetic vibration generator system.
Embodiment
Embodiment one: the specific embodiment of the present invention is described in conjunction with Fig. 1 to Fig. 4.The pilot system of a kind of testing airplane tank vibrating fatigue of the present invention performance, is comprised of electromagnetic vibration generator system 5, specimen holder 4, signal output device, stabilized voltage supply device, frequency meter, resistance strain gage 1, dynamic resistance strain instrument, sample 3 and counterweight 2.In Fig. 4, balancing weight 2 is arranged on the centre of sample 3 by bolt; One end of sample 3 is arranged on the stiff end of specimen holder 4 by bolt, the other end of sample 3 is arranged on the slide block of style fixture 4, slide block is connected with the long table of specimen holder 4 by screw rod, and the screw rod of tightening on specimen holder 4 can produce pulling force to slide block, thereby sample 3 is applied to pretension; Specimen holder 4 is arranged on electromagnetic vibration generator system 5; Stabilized voltage supply device is connected to provide power supply with signal output device; Signal output device is connected that with electromagnetic vibration generator system 5 it is controlled; Stabilized voltage supply device is connected to monitor output drive frequency simultaneously with frequency meter; Resistance strain gage 1 sticks on sample 3 surfaces and is connected to measure in real time the dynamic strain of sample 3 with dynamic resistance strain instrument; Dynamic resistance strain instrument is connected with frequency meter to monitor the corresponding frequencies of sample and record load cycle number of times.After above equipment and the integrated docking of device, just formed fuel tanker vibrating fatigue performance test test macro.
In the torture test of fuel tanker vibrating fatigue, the design of sample 3 is very crucial, the necessary accurately stress of simulated aircraft fuel tank, Fig. 1 has specifically provided a kind of aircraft machine back of the body fuel tank vibrating fatigue sample, concrete dimensional parameters can be referring to Fig. 1, retaining part at sample 3 two ends has designed fastener hole, can play and install and positioning action, and the hole in the middle of sample 3 is used for installing balancing weight 2.The dimensional parameters of specimen holder 4 as shown in Figure 2, is the long table with slide block, and wherein one end is stiff end, and the slide block that is positioned at the other end is connected with long table by screw rod, and turning screw rod can move by adjusting slider.Electromagnetic vibration generator system as shown in Figure 3, can be used the conventional electromagnetic vibration generator systems such as ZS-10D type or self-control electromagnetic vibration generator system.One end of sample 3 is arranged on to the stiff end of specimen holder 4, sample 3 other ends are arranged on the slide block of specimen holder 4, by tightening the screw rod on specimen holder 4, slide block can be strained, thereby sample 3 is applied to pretension.By the dynamic resistance strain instrument that sticks on the resistance strain gage 1 on sample 3 surfaces and be connected with resistance strain gage 1, can obtain the real-time strain of sample 3, thereby can regulate the size of pretension and the size of the internal stress that causes due to dynamic response according to testing requirements.For electromagnetic vibration generator system 5 provides the stabilized voltage supply device of power supply, be connected with frequency meter, to monitor output drive frequency, dynamic resistance strain instrument is also connected with frequency meter, to monitor the response frequency of sample 3.All devices are according to after testing requirements connection and debugging, according to concrete testing requirements, adjusting sample 3 bears predetermined tension (simulation oil pressure, supercharging load), control output drive frequency and output power, control again measured point stress and reach testing requirements value, just can complete the test of fuel tanker vibrating fatigue performance test.
Claims (1)
1. a pilot system for testing airplane tank vibrating fatigue performance, is characterized in that: it is comprised of electromagnetic vibration generator system, specimen holder, signal output device, stabilized voltage supply device, frequency meter, resistance strain gage, dynamic resistance strain instrument, sample and balancing weight; Balancing weight is arranged on the centre of sample; Sample is arranged on specimen holder; Specimen holder is arranged on electromagnetic vibration generator system; Stabilized voltage supply device is connected with signal output device; Signal output device is connected that with electromagnetic vibration generator system electromagnetic vibration generator system is controlled; Stabilized voltage supply device is connected to monitor output drive frequency simultaneously with frequency meter; The resistance strain gage sticking on sample is connected with dynamic strain indicator, to monitor the strain of sample; Dynamic resistance strain instrument is connected to monitor the response frequency of sample with frequency meter;
Described electromagnetic vibration generator system is the vibration table with electromagnetic vibration generator that is casing shape, and in order to sample is applied to oscillating load, the load range of shaking table need be greater than the test load of sample, is conventional electromagnetic vibration generator system or self-control electromagnetic vibration generator system;
Described sample is the fuel tanker vibrating fatigue sample of various different materials and type, and this sample is bars, and both sides are connected with right angle sheet metal component by spot welding form respectively, with base plate and the dividing plate of simulated aircraft fuel tank; Sample two ends also have respectively a bare terminal end, on bare terminal end and right angle sheet metal component, respectively there are two fastener holes, by bolt fastener, be mounted and fixed on fixture, there are two holes at sample middle part for balancing weight is installed, and the size and dimension of sample designs according to concrete fuel tanker;
Described specimen holder is the long table concavity part with slide block, in order to clamping sample to be installed, and by slide block, sample is applied to pretension, and need be according to the shape and size Design and manufacture of sample holder end, specimen holder is arranged on electromagnetic vibration generator system so that sample is applied to oscillating load;
Described balancing weight is rectangular parallelepiped alloy bloom, is arranged on the centre of style by bolt, for generation of vibration, sample is applied to oscillating load;
Described stabilized voltage supply device is for electromagnetic vibration generator system provides the electronic installation of stablizing AC power, to be conventional stabilized voltage supply device;
Described signal output device is the device that electromagnetic vibration generator system is controlled, and supports the use with electromagnetic vibration generator system;
Described frequency meter is a kind of electrometer formula frequency meter, for monitoring vibration frequency and recording cycle index;
Described resistance strain gage is a kind of chip component for monitor strain, the variation of strain on member can be converted to resistance variations, conventionally sticks on test specimen surface;
Described dynamic resistance strain instrument is a kind of connection with resistance strain gage for measuring the instrument of sample strain, can measure in real time the dynamic strain of sample;
All devices, according to after testing requirements connection and debugging, just can complete fuel tanker vibration fatigue test test according to concrete testing requirements.
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| CN201410212383.9A CN104019950B (en) | 2014-05-20 | 2014-05-20 | A kind of pilot system of testing airplane tank vibrating fatigue performance |
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| CN201410212383.9A CN104019950B (en) | 2014-05-20 | 2014-05-20 | A kind of pilot system of testing airplane tank vibrating fatigue performance |
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| CN104019950B CN104019950B (en) | 2016-03-30 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316280A (en) * | 2014-11-17 | 2015-01-28 | 合肥江航飞机装备有限公司 | Shaking and vibrating testing clamp for certain type of plane external auxiliary fuel tank |
| CN106289689A (en) * | 2016-07-27 | 2017-01-04 | 安徽凯达能源科技有限公司 | The vibration-testing apparatus of new forms of energy wind power generation assembly |
| CN106769556A (en) * | 2017-03-17 | 2017-05-31 | 西南交通大学 | Reliability test workbench and system that test metal coupons vibration is coupled with fatigue |
| CN106840560A (en) * | 2015-12-04 | 2017-06-13 | 中航通飞研究院有限公司 | A kind of Novel fuel tank shakes pilot system of shaking |
| CN106855497A (en) * | 2015-12-09 | 2017-06-16 | 中国电力科学研究院 | Heat-vibrating the ageing test apparatus and method of a kind of XLPE insulation print |
| CN107144474A (en) * | 2017-04-11 | 2017-09-08 | 中国航发北京航空材料研究院 | A kind of high temperature super high cycle fatigue pilot system and test method |
| CN108801822A (en) * | 2018-05-08 | 2018-11-13 | 南京航空航天大学 | One kind preloading high-frequency vibration fatigue experimental device |
| CN109398754A (en) * | 2018-12-07 | 2019-03-01 | 江西洪都航空工业集团有限责任公司 | A kind of integral wing tank rolling vibration test counterweight fixture |
| WO2020208891A1 (en) * | 2019-04-12 | 2020-10-15 | 株式会社Ihi | Jig for vibration test of stator vane |
| CN112629789A (en) * | 2020-12-17 | 2021-04-09 | 徐州徐工挖掘机械有限公司 | Fuel tank vibration durability test device and method |
| CN112729686A (en) * | 2020-11-30 | 2021-04-30 | 成都飞机工业（集团）有限责任公司 | Aircraft hydraulic guide pipe sealing test bench capable of simulating working conditions and installation errors |
| CN114878375A (en) * | 2022-07-11 | 2022-08-09 | 中国飞机强度研究所 | Airplane metal material vibration fatigue characteristic testing device and method |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316280A (en) * | 2014-11-17 | 2015-01-28 | 合肥江航飞机装备有限公司 | Shaking and vibrating testing clamp for certain type of plane external auxiliary fuel tank |
| CN106840560A (en) * | 2015-12-04 | 2017-06-13 | 中航通飞研究院有限公司 | A kind of Novel fuel tank shakes pilot system of shaking |
| CN106855497A (en) * | 2015-12-09 | 2017-06-16 | 中国电力科学研究院 | Heat-vibrating the ageing test apparatus and method of a kind of XLPE insulation print |
| CN106289689A (en) * | 2016-07-27 | 2017-01-04 | 安徽凯达能源科技有限公司 | The vibration-testing apparatus of new forms of energy wind power generation assembly |
| CN106769556A (en) * | 2017-03-17 | 2017-05-31 | 西南交通大学 | Reliability test workbench and system that test metal coupons vibration is coupled with fatigue |
| CN106769556B (en) * | 2017-03-17 | 2023-09-29 | 西南交通大学 | Reliability test workbench and system for testing vibration and fatigue coupling of metal test block |
| CN107144474B (en) * | 2017-04-11 | 2019-10-18 | 中国航发北京航空材料研究院 | A kind of high temperature super high cycle fatigue pilot system and test method |
| CN107144474A (en) * | 2017-04-11 | 2017-09-08 | 中国航发北京航空材料研究院 | A kind of high temperature super high cycle fatigue pilot system and test method |
| CN108801822A (en) * | 2018-05-08 | 2018-11-13 | 南京航空航天大学 | One kind preloading high-frequency vibration fatigue experimental device |
| CN108801822B (en) * | 2018-05-08 | 2020-07-14 | 南京航空航天大学 | Preload high-frequency vibration fatigue test device |
| CN109398754A (en) * | 2018-12-07 | 2019-03-01 | 江西洪都航空工业集团有限责任公司 | A kind of integral wing tank rolling vibration test counterweight fixture |
| WO2020208891A1 (en) * | 2019-04-12 | 2020-10-15 | 株式会社Ihi | Jig for vibration test of stator vane |
| JPWO2020208891A1 (en) * | 2019-04-12 | 2021-10-14 | 株式会社Ihi | Vibration test jig for stationary wings |
| JP7078917B2 (en) | 2019-04-12 | 2022-06-01 | 株式会社Ihi | Vibration test jig for stationary wings |
| US12031451B2 (en) | 2019-04-12 | 2024-07-09 | Hi Corporation | Jig for vibration test of stator vane |
| CN112729686A (en) * | 2020-11-30 | 2021-04-30 | 成都飞机工业（集团）有限责任公司 | Aircraft hydraulic guide pipe sealing test bench capable of simulating working conditions and installation errors |
| CN112629789A (en) * | 2020-12-17 | 2021-04-09 | 徐州徐工挖掘机械有限公司 | Fuel tank vibration durability test device and method |
| CN112629789B (en) * | 2020-12-17 | 2023-09-12 | 徐州徐工挖掘机械有限公司 | Fuel tank vibration durability test device and method |
| CN114878375A (en) * | 2022-07-11 | 2022-08-09 | 中国飞机强度研究所 | Airplane metal material vibration fatigue characteristic testing device and method |
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