CN110864867A - Environmental test method for simulating rain impact aircraft in rain-wearing flight - Google Patents
Environmental test method for simulating rain impact aircraft in rain-wearing flight Download PDFInfo
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- 230000007613 environmental effect Effects 0.000 title claims abstract description 26
- 238000010998 test method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 238000012360 testing method Methods 0.000 claims abstract description 46
- 238000009863 impact test Methods 0.000 claims abstract description 10
- 238000004088 simulation Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 7
- 238000012795 verification Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 6
- 238000011161 development Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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Abstract
The invention discloses an environment test method for simulating rain impact aircraft in rain-wearing flight, which mainly comprises the following two steps: and forming a simulated rain impact environment and a simulated rain-through flight impact test. By adopting the environmental test method, the impact verification test of the aircraft under different energies and water drop densities can be really simulated, the rain impact verification test is carried out through the components with typical representatives for the aircraft, the rain impact test can be carried out on the aircraft of different models under different energies, the simulation test result can be more real, the theoretical basis is provided for the rain impact resistance design of the aircraft, and the environmental test method is strong in universality, safe and practical, and suitable for popularization and use.
Description
Technical Field
The invention relates to the technical field of environmental simulation experiments, in particular to an environmental test method for simulating rain impact of an aircraft during rain-wearing flight.
Background
Environmental testing is the activity performed to ensure that the product retains functional reliability over the intended life of the product under all conditions of use, transport or storage, and is performed by exposing the product to natural or artificial environmental conditions to evaluate the performance of the product under the environmental conditions of actual use, transport and storage and to analyze and study the degree of influence of environmental factors and their mechanism of action. Through environmental tests, the purpose is to verify whether materials and products meet the quality targets expected in development, design and manufacture. Can be widely used in the fields of universities and universities, aviation, aerospace, military, shipbuilding, electricians, electronics, medical treatment, instruments and meters, petroleum instruments, petrochemical industry, medical treatment, gasoline and motorcycle and the like. With the rapid development of scientific, technical and economic trade and the development and utilization of natural resources in the ocean universe, the environment encountered by various products in the processes of storage, transportation and use is more and more complex and severer. From tropical to frigid zones, from plains to plateaus, from oceans to space, etc., which makes both users and producers concerned about the performance, reliability and safety of the product in the above-mentioned environment to ensure that the product works satisfactorily, which necessitates environmental tests. Environmental testing is the exposure of products to natural or artificial simulated environments to evaluate the performance of the products under the conditions of storage, transport and use to which they are actually subjected. Through environmental tests, information on design quality and product quality can be provided, and the method is an important means for quality assurance.
With the development of aviation technology, airplanes widely appear in life as equipment, vehicles and the like, and the airplanes can encounter some complex environments and meteorology in flight, and impact of foreign objects such as hail, bird collision and the like can cause certain damage to airplane structures, so that correspondingly perfect ground test verification methods and equipment are provided for the aspects; when an airplane is in flight, the airplane is often impacted by rainwater, and for the impact effect of the rainwater, no proper method is available for verification, and the verification should be firstly carried out on the ground.
Disclosure of Invention
The invention aims to solve the technical problem in the background art, provides an environment test method which is convenient to operate, can simulate rain-wearing flight by a typical representative member of an aircraft, can carry out verification test by using the impact condition of rainwater on the aircraft, and can provide a theoretical basis for the rainwater impact resistance design of the aircraft, in particular to a method for simulating the rainwater impact on the aircraft during rain-wearing flight.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an environment test method for simulating rain impact of an aircraft in rain-wearing flight mainly comprises the following two steps:
(1) forming a simulated rainwater impact environment, selecting a workbench with a guide rail to act as a test site under the ground condition, preparing a water tank and a supercharging device, selecting a water diversion allocation sieve for providing a rainwater environment for the simulated rainwater impact environment and a pressure adjusting device for adjusting the pressure, firstly adding water into the water tank, supercharging the water in the water tank by using the supercharging device, then forming water drops with certain energy and range by the water diversion allocation sieve, and forming the simulated rainwater impact environment in the test site;
(2) the method comprises the steps of simulating a rain-piercing flight impact test, placing a typical component for the test in an aircraft in a test site and in a simulated rainwater impact environment to form simulated rain-piercing flight, utilizing water drops to impact the component of the aircraft, and respectively recording the impact conditions of the component in different water drop density ranges and the same water drop density range under the condition of keeping the same energy, so as to obtain test data; and then adjusting the energy of water drops sprayed by the water distribution and allocation screen, and respectively recording the impact conditions of different water drops on the component in different water drop density ranges and the same water drop density range, thereby obtaining multiple groups of test data and completing a simulation rain-penetrating flight test.
Furthermore, the environmental test method for simulating the rain impact aircraft during rain penetration flight is characterized in that the water drop energy is represented by the water drop size and the falling water drop speed, the water drop size is converted into the water drop mass, the water drop density is represented by the water drop number in the same range, and in the process of simulating the rain penetration flight impact test, the falling water drop number and the impact speed of a component subjected to water drop impact in the water drop process are respectively required to be recorded and collected according to different impact conditions.
Compared with the prior art, the environmental test method for simulating the rain impact of the aircraft during rain-wearing flight has the beneficial effects that: after water is pressurized, the pressurized water is made to form water drops with certain energy and range by adopting the water distribution and distribution screen, a simulated rainwater impact environment is formed in a test site, the simulated rainwater impact environment is used for simulating the rain-wearing flight of an aircraft, an environmental test is carried out, a typical component used for the test in the aircraft is impacted by the water drops, the impact conditions of different water drops on the component are recorded respectively, and thus a plurality of groups of test data are obtained. By adopting the environmental test method, the impact verification test of the aircraft under different energies and water drop densities can be really simulated, the rain impact verification test is carried out through the components with typical representatives for the aircraft, the rain impact test can be carried out on the aircraft of different models under different energies, the simulation test result can be more real, the theoretical basis is provided for the rain impact resistance design of the aircraft, and the environmental test method is strong in universality, safe and practical, and suitable for popularization and use.
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The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of the structural principle of the present invention.
Detailed Description
As shown in FIG. 1, the environmental test method for simulating the rain impact on the aircraft during rain-wearing flight mainly comprises the following two steps:
(1) forming a simulated rainwater impact environment, selecting a workbench with a guide rail to act as a test site under the ground condition, preparing a water tank and a supercharging device, selecting a water diversion allocation sieve for providing a rainwater environment for the simulated rainwater impact environment and a pressure adjusting device for adjusting the pressure, firstly adding water into the water tank, supercharging the water in the water tank by using the supercharging device, then forming water drops with certain energy and range by the water diversion allocation sieve, and forming the simulated rainwater impact environment in the test site;
(2) the method comprises the steps of simulating a rain-piercing flight impact test, placing a typical component for the test in an aircraft in a test site and in a simulated rainwater impact environment to form simulated rain-piercing flight, utilizing water drops to impact the component of the aircraft, and respectively recording the impact conditions of the component in different water drop density ranges and the same water drop density range under the condition of keeping the same energy, so as to obtain test data; and then adjusting the energy of water drops sprayed by the water distribution and allocation screen, and respectively recording the impact conditions of different water drops on the component in different water drop density ranges and the same water drop density range, thereby obtaining multiple groups of test data and completing a simulation rain-penetrating flight test.
Furthermore, the environmental test method for simulating the rain impact aircraft during rain penetration flight is characterized in that the water drop energy is represented by the water drop size and the falling water drop speed, the water drop size is converted into the water drop mass, the water drop density is represented by the water drop number in the same range, and in the process of simulating the rain penetration flight impact test, the falling water drop number and the impact speed of a component subjected to water drop impact in the water drop process are respectively required to be recorded and collected according to different impact conditions.
By adopting the environmental test method, the water tank, the supercharging device, the water diversion allocation sieve and the related equipment for recording which need to be equipped are all universal equipment in the prior art, can be purchased in the market according to actual needs, and are applied to the technical scheme of the invention, so that the aim of performing a rainwater impact verification test on the components with typical representatives in the aircraft can be achieved through mutual matching of the water tank, the supercharging device, the water diversion allocation sieve and the related equipment for recording. In the application process, after water is pressurized, the pressurized water is made to form water drops with certain energy and range by adopting the water distribution and distribution screen, so that a simulated rainwater impact environment is formed in a test site, the simulated rainwater impact environment is used for simulating the rain-wearing flight of an aircraft to carry out an environmental test, typical components used for the test in the aircraft are impacted by the water drops, the impact conditions of different water drops on the components are respectively recorded, and thus, a plurality of groups of test data are obtained.
In conclusion, the environmental test method can truly simulate the impact verification test of the aircraft under different energies and water drop densities, and can carry out the rainwater impact verification test on the aircraft through the components with typical representatives, so that the rainwater impact test can be carried out on the aircraft of different models under different energies, the simulation test result can be more true, theoretical basis is provided for the rainwater impact resistance design of the aircraft, and the environmental test method is strong in universality, safe, practical and suitable for popularization and use.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art, and any modifications, equivalents, improvements, etc. made by using the present invention should be included in the protection scope of the present invention.
Claims (2)
1. An environment test method for simulating rain impact of an aircraft in rain-wearing flight is characterized by mainly comprising the following two steps:
(1) forming a simulated rainwater impact environment, selecting a workbench with a guide rail to act as a test site under the ground condition, preparing a water tank and a supercharging device, selecting a water diversion allocation sieve for providing a rainwater environment for the simulated rainwater impact environment and a pressure adjusting device for adjusting the pressure, firstly adding water into the water tank, supercharging the water in the water tank by using the supercharging device, then forming water drops with certain energy and range by the water diversion allocation sieve, and forming the simulated rainwater impact environment in the test site;
(2) the method comprises the steps of simulating a rain-piercing flight impact test, placing a typical component for the test in an aircraft in a test site and in a simulated rainwater impact environment to form simulated rain-piercing flight, utilizing water drops to impact the component of the aircraft, and respectively recording the impact conditions of the component in different water drop density ranges and the same water drop density range under the condition of keeping the same energy, so as to obtain test data; and then adjusting the energy of water drops sprayed by the water distribution and allocation screen, and respectively recording the impact conditions of different water drops on the component in different water drop density ranges and the same water drop density range, thereby obtaining multiple groups of test data and completing a simulation rain-penetrating flight test.
2. The environmental test method for simulating rain impact on an aircraft in rain flying according to claim 1, wherein: the water drop energy is characterized by the water drop size and the falling water drop speed, the water drop mass is converted by the water drop size, the water drop density is characterized by the water drop number in the same range, and in the simulation rain-wearing flight impact test process, the falling water drop number and the impact speed of a component subjected to water drop impact in the water drop process are required to be recorded and collected according to different impact conditions.
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| CN201911249267.3A CN110864867A (en) | 2019-12-09 | 2019-12-09 | Environmental test method for simulating rain impact aircraft in rain-wearing flight |
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2019
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