CN114295772A - Flight fire protection test system and method thereof - Google Patents
Flight fire protection test system and method thereof Download PDFInfo
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- CN114295772A CN114295772A CN202111651983.1A CN202111651983A CN114295772A CN 114295772 A CN114295772 A CN 114295772A CN 202111651983 A CN202111651983 A CN 202111651983A CN 114295772 A CN114295772 A CN 114295772A
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Abstract
The invention relates to the field of fire prevention testing of an airplane ignition part, in particular to a flight fire prevention testing system and a method thereof, wherein the system comprises an environment simulation module, a control module, a target to be tested and a recording module; and recording the combustion test result of the target to be tested in the negative pressure and vibration environment in the fireproof test process. The invention can improve the authenticity of the fire-proof test environment and the negative pressure of the airplane during actual flight and improve the flight safety of the airplane.
Description
Technical Field
The invention relates to the field of fire prevention testing of an airplane fire site, in particular to a flight fire prevention testing system and a method thereof.
Background
An aircraft is a heavier-than-air aircraft having one or more engine powered devices to generate forward thrust or pull and lift from fixed wings of the fuselage, flying through the atmosphere. The aircraft usually carries passengers or materials to fly, and the flying safety of the aircraft is related to the personal safety and the property safety of the aircraft, so that the index tests of the fire resistance and the like of the aircraft are very important. In the flight process of the airplane, a certain air pressure needs to be kept in the airplane cabin to ensure that passengers can breathe normally, so that the test of indexes such as the fire resistance of each part of the airplane is generally carried out under the atmospheric pressure condition.
However, when a fire breaks out in the flight process of the aircraft, a small part of the sealing element and the structural element are in a negative pressure environment, and the fire resistance tested under the negative pressure environment is different from that tested under the atmospheric pressure environment, so that the test result of the fire resistance of the part of the sealing element and the structural element is inaccurate.
Disclosure of Invention
The invention aims to provide a flight fire-protection test system to solve the problem that the fire-protection performance test result of a part of sealing parts and structural parts is inaccurate by the existing test method.
The flight fire prevention test system in the scheme comprises an environment simulation module, a control module, a target to be tested and a recording module;
the control module sends a test signal to the environment simulation module during testing, and the environment simulation module is used for receiving the test signal of the control module to form a negative pressure and vibration environment for a target to be tested to perform fire protection test;
the control module generates an adjusting signal for adjusting the negative pressure of the negative pressure and the vibration environment according to a preset strategy, the preset strategy is that the negative pressure is increased to a set pressure in a first time period, the set pressure is kept for a second time period, and finally the negative pressure is decreased according to a preset gradient and then is changed randomly, and the environment simulation module forms the negative pressure and the vibration environment according to the adjusting signal;
the recording module is used for recording the test result of the target to be tested in the combustion process under the negative pressure and vibration environment.
The beneficial effect of this scheme is:
an environment simulation module forms a negative pressure and vibration environment according to a test signal, a target to be tested is positioned in the negative pressure and vibration environment to perform fire protection test, for example, sealing parts, structural parts and the like under the negative pressure and vibration environment on an airplane are used as the target to be tested, meanwhile, in the combustion test process, the control module controls the environment simulation module to adjust the negative pressure of the negative pressure and vibration environment according to a preset strategy, and records the test result, the fire protection test of the negative pressure and vibration environment of different negative pressures is performed on partial parts of the airplane in advance, the negative pressure and vibration environment are pressurized to the set pressure and then stabilized for a period of time to reach the air pressure of the environment where the target to be tested is positioned on the airplane, then the pressure of the environment is reduced according to a preset gradient and then is randomly changed to form the air pressure change condition when the airplane is abnormal, and the scheme can improve the authenticity of the fire protection test environment and the negative pressure when the airplane actually flies, the flight safety of the airplane is improved.
Further, the control module acquires the test result of the recording module to identify the change characteristic of the target to be tested, compares the identified change characteristic with the preset characteristic, and when the change characteristic is the same as the preset characteristic, the control module sends a change signal to the environment simulation module, and the environment simulation module enables the negative pressure to change randomly according to the change signal.
The beneficial effects are that: and identifying the change characteristics of the target to be tested in the test result, such as deformation or cracking of the target to be tested, controlling the environment simulation module to enable the negative pressure to change randomly, acting on the combustion test through the change of the air pressure, and obtaining the influence of abnormal air pressure caused by the changed environment after the target to be tested changes in the combustion process, such as the change of the negative pressure environment caused by the abnormality of the airplane, so as to obtain the accurate fireproof performance of the target to be tested.
Further, the control module continuously sends a vibration signal to the environment simulation module within a third time length when the fire prevention test is started, and the environment simulation module receives the vibration signal of the control module and applies vibration of a first strength to a target to be tested which is burnt under negative pressure and a vibration environment.
The beneficial effects are that: the target to be tested is continuously vibrated within the third time after the fire protection test is started, vibration brought by the running process of an engine can be applied to the target to be tested, the accuracy of a simulated flight environment can be improved, the combustion test of the target to be tested is carried out under the conditions of negative pressure and vibration environment and shaking, and the accuracy of the fire protection test result is improved.
Further, the control module sends an intermittent vibration signal to the environment simulation module after sending the change signal, and the environment simulation module applies vibration with a second intensity to the target to be measured according to the intermittent vibration signal, wherein the second intensity is greater than the first intensity.
The beneficial effects are that: after the combustion of the target to be tested changes, the target to be tested vibrates randomly, the target to be tested can be located in a larger vibration environment where the airplane generates intermittence due to the influence of airflow, whether the protection performance of the combustion later stage of the target to be tested is influenced by vibration or not is tested, and the authenticity and the integrity of the simulated environment are improved.
The flight fire protection test method comprises the following steps:
placing a target to be tested in a negative pressure and vibration environment for fire protection testing, generating a regulating signal for regulating the negative pressure of the negative pressure and the vibration environment according to a preset strategy, and changing the negative pressure and the negative pressure in the environment according to the preset strategy, wherein the preset strategy is that the negative pressure is gradually increased to a set pressure within a first time length, then the set pressure is kept for a second time length, and finally the negative pressure is reduced gradually according to a preset gradient and then is randomly changed;
and recording the combustion test result of the target to be tested in the negative pressure and vibration environment in the fireproof test process.
The beneficial effect of this scheme is:
the target to be tested is subjected to fire protection testing in the negative pressure and vibration environment, for example, the testing of sealing parts, structural parts and the like on an airplane is carried out, the negative pressure intensity of the negative pressure and the vibration environment is adjusted, the negative pressure intensity is boosted to a set pressure intensity and then is kept for a period of time, the negative pressure intensity of the negative pressure and the vibration environment reaches the pressure intensity state of the airplane in the actual flight state, finally the negative pressure intensity is reduced according to a preset gradient and then is changed immediately, the negative pressure and the vibration environment can approach the condition of air pressure change when the airplane is abnormal, the negative pressure and the vibration environment can better accord with the actual negative pressure and the vibration environment when the airplane flies, and the accuracy of the fire protection testing result of the target to be tested is improved.
Compared with the existing test method, the method has the advantages that the target to be tested is subjected to the combustion test in the same environment as that of the airplane, the combustion test is carried out on a very small number of parts on the airplane, the fireproof performance of the target to be tested can be analyzed according to the test result of the combustion test, and the accuracy of the fireproof performance test of the target to be tested in the specific environment is improved. The scheme is that combustion tests are carried out on part of components on the airplane in negative pressure and vibration environments, and for a person skilled in the art, the combustion tests cannot be generally carried out on the part of components on the airplane, because most of areas on the airplane are in a normal pressure state to meet requirements of human bodies, only a few of areas on the airplane are possibly in the negative pressure and vibration environments, the fire resistance of the few areas is not considered, and the change of the fire resistance of sealing elements and structural parts in the few areas possibly influences the safety of the airplane; in addition, even if some personnel pay attention to the sealing elements and the structural members in the partial area, no system capable of performing the negative pressure fire protection test is available, and no practical test is available, furthermore, even if the fire protection test under the designated negative pressure is completed by piecing various devices, the combustion environment under the actual flight state cannot be truly simulated, wrong test data are obtained, and no guiding significance is provided for judging the fire protection performance under the actual flight state, so that the scheme can greatly restore the negative pressure environment on the airplane to perform the test.
Further, identifying the variation characteristics in the test result, comparing the variation characteristics with the preset characteristics, and randomly changing the negative pressure when the variation characteristics are the same as the preset characteristics.
The beneficial effects are that: and judging whether the target to be tested is a preset characteristic or not according to the change characteristic recorded and recognized in real time, such as deformation or cracking of the target to be tested, and if so, randomly changing the negative pressure, changing the negative pressure and the vibration environment at the later stage of the fireproof test of the target to be tested, and improving the integrity of the fireproof test of the target to be tested.
Further, when the fire protection test is started, vibration excitation is applied to the target to be tested in the fire protection test process within a third time period, and the vibration excitation applies vibration to the target to be tested with first intensity.
The beneficial effects are that: the method has the advantages that vibration excitation is applied to the target to be tested in the testing process, so that the negative pressure and vibration environment of the fireproof test of the target to be tested are more real, and the accuracy of the fireproof test result is improved.
Further, the set pressure is-15 KPa to 0KPa, real-time collecting real-time pressures of preset quantity in the negative pressure and the vibration environment when the first time length is over, sequentially subtracting the collected real-time pressures and calculating the air pressure variation, predicting the adjusted predicted pressure according to the air pressure variation and the real-time pressure at the current moment, and correcting the adjustment quantity in real time according to the predicted pressure.
The beneficial effects are that: in a time period of keeping the negative pressure constant, predicting the adjusted air pressure environment through the air pressure variation of the real-time pressure, the real-time pressure and the adjustment quantity of the negative pressure, correcting the adjustment quantity in real time to adjust the adjustment quantity of the pressure in advance by the adjustment quantity, correcting the adjustment quantity in advance before the air pressure is about to be out of the range of the set pressure, avoiding the adjustment after the real-time pressure is out of the range of the set pressure, keeping the stability of the adjusted pressure, truly simulating the combustion environment under the condition of firing in the flight process of the airplane, and enabling the measured fire resistance to be more real and reliable.
Drawings
FIG. 1 is a schematic block diagram of a flight fire protection test system according to an embodiment of the present invention;
fig. 2 is a flow chart of a flight fire protection testing method according to a second embodiment of the present invention.
Detailed Description
The following is a more detailed description of the present invention by way of specific embodiments.
Example one
Flight fire protection test system, as shown in fig. 1: the system comprises an environment simulation module, a control module, a target to be tested and a recording module, wherein the environment simulation module comprises a negative pressure unit and a vibration unit, the negative pressure unit can use the existing air pump, the vibration unit can use the existing vibrator of VSK-ZF-ZN model, the control module controls and connects the environment simulation module, the control module can use the existing SOC chip, the target to be tested comprises a sealing element and a structural member, and the recording module can select the existing infrared thermal imager according to actual requirements.
The control module sends a test signal to the environment simulation module during testing, the control module can send the test signal during power-on, the environment simulation module is used for receiving the test signal of the control module to form a negative pressure and a vibration environment for a target to be tested to carry out fire-proof testing, namely, a negative pressure unit in the environment simulation module is started to pump air away, a vibration unit in the environment simulation module is started to apply vibration excitation with a first strength to the target to be tested, the first strength is set according to the vibration strength value applied to corresponding parts when an engine on an airplane runs, when vibration is applied, the target to be tested is applied to a platform for placing the target to be tested according to the installation mode on the airplane and can be installed on any side wall of the cube-shaped test box through screws and the like, one side of an ignition face of the target to be tested is located outside the test box, namely, the back fire face equivalent to the target to be tested is located in the test box, the face of meeting a fire of test target is located the test box outside to let the environmental simulation module form negative pressure and vibration environment, the volume of test box sets up according to actual demand, and the test box utilizes metal to make, for example stainless steel makes.
The control module generates an adjusting signal for adjusting the negative pressure and the negative pressure intensity of the vibration environment according to a preset strategy, the preset strategy is that the negative pressure intensity is gradually increased to a set pressure intensity within a first time period, the first time period can be set according to an actual test condition, for example, the first time period is set to six minutes, the set pressure may be set to-15 KPa to 0KPa, and held at the set pressure for a second time period, namely, the negative pressure is kept in the range of-15 KPa to 0KPa, the second time length is set according to the test requirement, for example, ten minutes, and finally, the negative pressure is decreased gradually according to a preset gradient and then is changed randomly, wherein the preset gradient can be 2KPa, for example, the preset strategy is decreased from-15 KPa to-4 KPa, and the preset strategy can be stored in the control module in advance, and the environment simulation module forms a negative pressure and vibration environment according to the adjusting signal, namely the negative pressure and vibration environment is formed by air suction of the negative pressure unit of the environment simulation module.
The recording module is used for recording a test result of a target to be tested in a combustion process under negative pressure and vibration environments, the recording module is used for recording an image of the target to be tested in the combustion process to serve as the test result, and the control module is used for acquiring the test result and identifying test information such as a flame state, a fire spread range, flame temperature and the like of the target to be tested in the combustion process through an existing algorithm.
The control module acquires the test result of the recording module to identify the change characteristics of the target to be tested, compares the identified change characteristics with preset characteristics, acquires the test profile of the target to be tested through the existing profile extraction algorithm, and comparing with the initial profile of the target before combustion test to determine whether the initial profile is the same, when the variation characteristic is the same as the preset characteristic, the control module sends a variation signal to the environment simulation module, the environment simulation module enables the negative pressure to randomly vary according to the variation signal, the number of times of the random variation of the negative pressure can be set to three, the random variation of the negative pressure is in the order of increasing and decreasing, and the amount of increase and decrease is not fixed, for example, the negative pressure is increased from-2 KPa to-1 KPa, then decreased to-8 KPa, and finally increased to-5 KPa. The control module sends an intermittent vibration signal to the environment simulation module after sending the change signal, the environment simulation module applies vibration with a second intensity to the target to be measured according to the intermittent vibration signal, and the second intensity is larger than the first intensity.
The control module continuously sends a vibration signal to the environment simulation module within a third time period when the fire test is started, namely, a vibration unit in the environment simulation module is enabled to vibrate all the time, the third time period is set according to the combustion process of the target to be tested, for example, the third time period can be set to five minutes, the environment simulation module receives the vibration signal of the control module and vibrates the target to be tested which is combusted under the negative pressure and the vibration environment, namely, the control module controls the vibration unit to drive the target to be tested to vibrate. The first duration, the second duration and the third duration are obtained and calculated by the control module from the internal clock.
The system also comprises a pressure acquisition module for acquiring the real-time pressure in the test environment of the target to be measured, the control module acquires a preset amount of real-time pressure at the end of the first time length and sequentially performs difference calculation on the real-time pressure, the control module acquires the sampling frequency of the real-time pressure of 10 times/minute, namely the preset amount of 10 real-time pressure values, the control module sums the difference values obtained by the difference calculation and then calculates the average value to obtain the air pressure variation, for example, the obtained air pressure variation is-0.4 KPa, the control module acquires the regulating quantity of the environment simulation module aiming at the negative pressure and the vibration environment airflow, for example, the regulating quantity is the quantity of pumped airflow and the opening of an air inlet, the control module predicts and calculates the adjusted predicted pressure according to the air pressure variation and the real-time pressure at the current time, for example, the real-time pressure at the current time is-7.3 KPa, and the control module predicts the real-time pressure and the air pressure variation at the current time, adding the preset quantity for a plurality of times to obtain the preset quantity of predicted pressures, for example, the obtained predicted pressures are-7.7 KPa, -8.1KPa, -8.5KPa, -8.9KPa, -9.3KPa, -9.7KPa, -15.1KPa, -15.5KPa, -15.9KPa, -11.3KPa, comparing the predicted pressures with the set pressures by the control module, namely, judging whether each predicted pressure is in the set pressure range, comparing the predicted pressures with the set pressure by the control module respectively when the predicted pressures are not coincident with the set pressure, namely, the predicted pressures are not all in the set pressure range, comparing the predicted pressures with the lower limit value and the upper limit value of the set pressure by the control module, and sending an adjusting signal for reducing the adjusting quantity to the environment simulation module when the predicted pressures are less than the lower limit value of the set pressure, namely, part of the predicted pressures are less than the lower limit value-15 KPa of the set pressure, i.e. decreasing the opening degree of the inlet port, and when the predicted pressure is greater than the upper limit value of the set intensity, i.e. part of the predicted pressure is greater than the upper limit value of the set pressure of 0KPa, the control module sends an adjustment signal to the environmental simulation module to increase the adjustment amount, i.e. increase the opening degree of the inlet port, the amount of increase and decrease of the adjustment amount being fixed, for example, the amount of adjustment is 1/4 opening, and the increase or decrease of the adjustment amount can be performed by adjusting the opening degree of the inlet port of the suction pump. Thereby achieving the aim of keeping the negative pressure and the vibration environment stable.
Because most of the areas of the aircraft are set to be in the normal-pressure environment according to the breathing requirement of the human body, but a very small part of the areas are still in the negative-pressure environment, safety tests performed on parts of the aircraft are generally performed in the normal-pressure environment, because the number of the parts in the negative-pressure and vibration environments is small, the cost for performing the tests separately is high, no equipment specially used for the tests is provided, and one side wall of the part in the negative-pressure environment is in the negative-pressure environment while the other side wall of the part in the negative-pressure environment is in the normal-pressure environment. The system of the embodiment provides a method for testing the fireproof performance of sealing elements and structural members on the airplane under negative pressure and vibration environments, and tests the targets to be tested under the negative pressure and vibration environments of the airplane flying in deed by performing fireproof tests on the sealing elements and the structural members on the airplane and simulating the negative pressure and vibration environments, so that the targets to be tested can be tested under the negative pressure and vibration environments of the airplane flying in deed, and the accuracy of test results is improved. Even if a small part of components are tested in the negative pressure and vibration environment, the accurate negative pressure and vibration environment similar to that of an airplane cannot be simulated by the prior art, and an accurate test result cannot be obtained.
Example two
As shown in fig. 2, the present embodiment provides a flight fire protection testing method, which is applied to the flight fire protection testing system in the first embodiment, and includes the following contents:
the method comprises the steps of placing a target to be tested in a negative pressure and vibration environment for fire protection testing, placing the target to be tested in the negative pressure and vibration environment for ignition testing, wherein ignition operation of the target to be tested is the prior art, and is not repeated herein, generating and adjusting negative pressure of the negative pressure and the vibration environment according to a preset strategy, wherein the preset strategy is that the negative pressure is gradually increased to a set pressure within a first time period, then the set pressure is kept for a second time period, the negative pressure is gradually decreased according to a preset gradient after the second time period and then randomly changed, and the first time period and the second time period are set according to parameter values in the embodiment.
The burning test results of the target to be tested in the negative pressure and vibration environment during the fire protection test are recorded, for example, by taking an image with temperature, such as an infrared imaging chart.
The method comprises the steps of identifying change features in a test result, using the method in the first embodiment, obtaining a test contour of a target to be tested through an existing contour extraction algorithm for identifying the change features, comparing the change features with preset features, wherein the preset features can be an initial contour of the target to be tested before testing, extracting feature information of the contour through an existing SIFT algorithm, an SURF algorithm and the like for matching the test contour with the initial contour, namely extracting feature points on the contour and calculating the feature information, matching according to the feature information through a robust matching algorithm robustMatch, and enabling the negative pressure to change randomly when the change features are the same as the preset features.
When the fire prevention test is started, applying vibration excitation for a third time length to a target to be tested in the fire prevention test process, wherein the vibration excitation applies vibration to the target to be tested with the first strength, the third time length is set according to the first embodiment, the vibration excitation is set according to the acquired vibration information, and the vibration information comprises vibration amplitude and vibration frequency. And when the change characteristic is the same as the preset characteristic, intermittently applying vibration with a second intensity to the target to be detected, wherein the second intensity is greater than the first intensity.
Setting the pressure to be-15 KPa to 0KPa, acquiring a preset number of real-time pressures in the negative pressure and vibration environment in real time when the first time length is over, acquiring a sampling frequency of the real-time pressures to be 10 times/minute, namely, acquiring a value of the preset number of 10 real-time pressures, sequentially differentiating the acquired real-time pressures, calculating an air pressure variation, averaging the differential values obtained by differentiating to obtain the air pressure variation, for example, the obtained air pressure variation is-0.4 KPa, acquiring adjustment quantity of the pressure adjustment of the negative pressure and vibration environment, predicting the adjusted predicted pressure according to the air pressure variation and the real-time pressure at the current time, for example, the real-time pressure at the current time is-12.3 KPa, adding the real-time pressure at the current time and the air pressure variation according to the preset number of times, and sequentially acquiring the predicted pressures of a preset number, for example, the obtained predicted pressure is-12.7 KPa, -13.1KPa, -13.5KPa, -13.9KPa, -14.3KPa, -14.7KPa, -15.1KPa, -15.5KPa, -15.9KPa, -16.3KPa, comparing the predicted pressure with the set pressure, namely, judging whether each predicted pressure is within the set pressure range, respectively comparing the predicted pressure with the lower limit value and the upper limit value of the set pressure when the predicted pressure is not coincident with the set pressure, when the predicted pressure is less than the lower limit value of the set pressure, an adjustment signal for reducing the adjustment amount is sent, i.e., the opening degree of the intake port is decreased, and when the predicted pressure is greater than the upper limit value of the set intensity, an adjustment signal for increasing the adjustment amount is sent, i.e. increasing the opening of the inlet port, the amount of increase and decrease of the adjustment amount is fixed, e.g. the adjustment amount is 1/4 opening amount, i.e. the adjustment amount is corrected in real time according to the predicted pressure.
The method of the embodiment simulates the negative pressure and vibration environment of the sealing element and the structural element on the airplane, adjusts the negative pressure intensity in the negative pressure and vibration environment, calculates the adjusted predicted pressure intensity in the pressure stabilizing process, judges whether the predicted pressure intensity is within the range of the set pressure intensity, and if not, adjusts the predicted pressure intensity in advance, improves the authenticity of the simulated negative pressure and vibration environment and the negative pressure and vibration environment on the airplane, and improves the accuracy of the fireproof test result of the target to be tested.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (8)
1. A flight fire prevention test system which characterized in that: the system comprises an environment simulation module, a control module, a target to be detected and a recording module;
the control module sends a test signal to the environment simulation module during testing, and the environment simulation module is used for receiving the test signal of the control module to form a negative pressure and vibration environment for a target to be tested to perform fire protection test;
the control module generates an adjusting signal for adjusting the negative pressure of the negative pressure and the vibration environment according to a preset strategy, the preset strategy is that the negative pressure is increased to a set pressure in a first time period, the set pressure is kept for a second time period, and finally the negative pressure is decreased according to a preset gradient and then is changed randomly, and the environment simulation module forms the negative pressure and the vibration environment according to the adjusting signal;
the recording module is used for recording the test result of the target to be tested in the combustion process under the negative pressure and vibration environment.
2. The flying fire protection testing system of claim 1, wherein: the control module acquires the test result of the recording module to identify the change characteristic of the target to be tested, compares the identified change characteristic with the preset characteristic, and sends a change signal to the environment simulation module when the change characteristic is the same as the preset characteristic, and the environment simulation module enables the negative pressure to change randomly according to the change signal.
3. The flying fire protection testing system of claim 2, wherein: the control module continuously sends a vibration signal to the environment simulation module within a third time when the fire prevention test is started, and the environment simulation module receives the vibration signal of the control module and applies vibration of a first strength to a target to be tested which is burnt under negative pressure and a vibration environment.
4. The flying fire protection testing system of claim 3, wherein: the control module sends an intermittent vibration signal to the environment simulation module after sending the change signal, and the environment simulation module applies vibration with a second intensity to the target to be measured according to the intermittent vibration signal.
5. The flight fire protection test method is characterized by comprising the following steps:
placing a target to be tested in a negative pressure and vibration environment for fire protection testing, generating a regulating signal for regulating the negative pressure of the negative pressure and the vibration environment according to a preset strategy, and changing the negative pressure and the negative pressure in the environment according to the preset strategy, wherein the preset strategy is that the negative pressure is gradually increased to a set pressure within a first time length, then the set pressure is kept for a second time length, and finally the negative pressure is reduced gradually according to a preset gradient and then is randomly changed;
and recording the combustion test result of the target to be tested in the negative pressure and vibration environment in the fireproof test process.
6. The flying fire protection test method of claim 5, wherein: and identifying the variation characteristics in the test result, comparing the variation characteristics with the preset characteristics, and randomly changing the negative pressure when the variation characteristics are the same as the preset characteristics.
7. The flying fire protection test method of claim 5, wherein: when the fire protection test is started, vibration excitation is applied to the target to be tested in the fire protection test process within a third time period, and the vibration excitation applies vibration to the target to be tested with first intensity.
8. The flying fire protection test method of claim 5, wherein: the set pressure is-15 KPa to 0KPa, real-time pressure of a preset amount in a negative pressure and vibration environment is collected in real time when the first time length is finished, the collected real-time pressure is subjected to sequential subtraction, the air pressure variation is calculated, the adjusted predicted pressure is predicted according to the air pressure variation and the real-time pressure at the current moment, and the adjustment amount is corrected in real time according to the predicted pressure.
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