CN108896316B - Safety test device for checking full-size solid engine under action of large extrusion force - Google Patents
Safety test device for checking full-size solid engine under action of large extrusion force Download PDFInfo
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- CN108896316B CN108896316B CN201810571086.1A CN201810571086A CN108896316B CN 108896316 B CN108896316 B CN 108896316B CN 201810571086 A CN201810571086 A CN 201810571086A CN 108896316 B CN108896316 B CN 108896316B
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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
- G01M15/00—Testing of engines
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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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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Abstract
The invention provides a safety test device for checking a full-size solid engine under the action of large extrusion force, which comprises a pressure-bearing wall, an elastic air cushion, an extrusion plate, a pressure sensor and a horizontal loading system, wherein the pressure-bearing wall is arranged on the outer wall of the extrusion plate; one side of the tested engine is tightly close to the pressure-bearing wall and is placed on the elastic air cushion; the extrusion plate is arranged on the other side of the tested engine and is connected with the horizontal loading system through a pressure sensor; the horizontal loading system applies horizontally loaded extrusion force to the engine to be tested through the extrusion plate. The invention solves the requirements of the test on the aspects of large extrusion force, extrusion force-time spectrum, force transmission reliability, safety and the like, reliably simulates the extrusion process that the solid engine bears the landing weight of the airplane when the landing gear fails to open and the solid engine for the airborne missile is subjected to the accident of the airplane landing, and lays a foundation for checking the extrusion safety of the solid engine.
Description
Technical Field
The invention relates to the technical field of safety test and evaluation of solid rocket engines, in particular to a safety test device for checking a full-size solid engine under the action of large extrusion force.
Background
The solid engine as a power device is a main energy-containing part of the missile, has strong power and energy, can be accidentally ignited, combusted, propelled, exploded or even detonated when being accidentally stimulated, threatens own equipment and personnel, causes economic loss and weakens own fighting capacity if light, and causes casualties, delays fighters and influences fighting victory or defeat if heavy. At present, the army has recognized that weaponry must meet the safety requirements of actual combat and requires assessment to determine factors that may cause engine hazards based on equipment life cycle profile analysis.
During service, the possibility that the landing gear cannot be opened when the airplane lands exists in the airborne missile solid engine, and the airborne missile solid engine bears the extrusion of the landing weight of the airplane. Therefore, safety test examination is required. The test requirement provides an extrusion force of about hundred tons for the solid engine, and can meet the requirements of extrusion force precision and extrusion force-time spectrum. As a large amount of energetic materials are filled in the engine, the safety of the test is ensured, and the interference of the deformation of the engine in the vertical direction to the test when the extrusion force is horizontally loaded is reduced as much as possible.
At present, no public data is available at home and abroad to introduce the safety test technology of the related solid engine under the action of large extrusion force, and no related unit is available at home to carry out the technical research.
Disclosure of Invention
In order to realize the safety assessment of the full-size solid engine under the action of large extrusion force, the invention provides a safety test device for assessing the safety of the full-size solid engine under the action of large extrusion force, which simulates the process that when an airplane lands, the landing gear cannot be opened due to an accident condition, and the solid engine for an airborne missile bears the landing weight of the airplane.
The invention uses the oil cylinder, the control system and the thrust sensor to form an extrusion force applying device, provides the required extrusion force of nearly hundred tons for the test, and matches with the low-resistance extrusion plate to ensure that the actual extrusion force spectrum applied on the engine is consistent with the set extrusion force spectrum as much as possible, thereby meeting the requirements of extrusion force precision and extrusion force-time spectrum. The double-layer elastic air cushion is designed at the bottom of the engine to reduce the interference of the vertical deformation of the engine on the test when the extrusion force is horizontally loaded, so that the state of the vertical loading extrusion force is consistent with that of the airplane when the airplane lands.
The technical scheme of the invention is as follows:
the safety test device for checking the full-size solid engine under the action of large extrusion force is characterized in that: comprises a pressure-bearing wall (1), an elastic air cushion, an extrusion plate, a pressure sensor (5) and a horizontal loading system;
one side of the tested full-size solid engine (2) is abutted against the pressure-bearing wall (1) and placed on the elastic air cushion; the extrusion plate is arranged on the other side of the measured full-size solid engine (2) and is connected with the horizontal loading system through a pressure sensor (5); the horizontal loading system applies the extrusion force of horizontal loading to the tested full-size solid engine (2) through the extrusion plate.
Further preferred scheme, the test device for checking the safety of the full-size solid engine under the action of large extrusion force is characterized in that: the horizontal loading system comprises an oil cylinder (6), a control system (9) and an oil circuit system (8), wherein the control system (9) controls the oil circuit system (8) and the oil cylinder (6) to generate required extrusion force according to the set extrusion force-time spectrum requirement, and the required extrusion force is loaded on the low-resistance extrusion plate (4) through a pressure sensor (5).
Further preferred scheme, the test device for checking the safety of the full-size solid engine under the action of large extrusion force is characterized in that: the extrusion plate adopts low resistance extrusion plate (4), low resistance extrusion plate (4) adopt smooth gyro wheel cooperation with ground.
Further preferred scheme, the test device for checking the safety of the full-size solid engine under the action of large extrusion force is characterized in that: the elastic air cushion adopts a double-layer elastic air cushion (3), when the tested full-size solid engine (2) is correspondingly deformed, the upper layer elastic air cushion is broken and leaks air, and the tested full-size solid engine (2) is continuously supported by the lower layer elastic air cushion.
Further preferred scheme, the test device for checking the safety of the full-size solid engine under the action of large extrusion force is characterized in that: and the oil circuit system (8) and the control system (9) are separated from the pressure-bearing wall (1), the elastic air cushion, the extrusion plate, the pressure sensor (5) and the oil cylinder (6) through an explosion-proof wall (7).
Advantageous effects
The invention provides an extrusion safety test device for simulating landing of an airplane, wherein when the airplane lands, the landing gear cannot be opened due to an accident condition, and a solid engine for an airborne missile bears the landing weight of the airplane. The device is novel and reasonable, can meet the requirement of the safety examination of the engine, and solves the requirements of the test on large extrusion force, extrusion force-time spectrum, force transmission reliability, safety and the like, so that the reliable simulation of the extrusion of the solid engine for the airborne missile to bear the landing weight of the airplane due to the accident of the airplane landing of the solid engine under the conditions of low cost and high safety is possible. The test method designs a low-resistance extrusion plate and a double-layer elastic air cushion by means of the oil cylinder, the sensor and the control system, and the test scheme and the design method can also be popularized and applied to tests with large extrusion force and high risk.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1: a schematic diagram of a full-size solid engine extrusion safety assessment test device;
wherein: 1-pressure-bearing wall 2-measured full-size solid engine 3-double-layer elastic air cushion 4-low resistance extrusion plate 5-pressure sensor 6-oil cylinder 7-blast wall 8-oil way system 9-control system.
Detailed Description
The following detailed description of embodiments of the invention is intended to be illustrative, and not to be construed as limiting the invention.
The invention aims to realize safety assessment of a full-size solid engine under the action of large extrusion force, and provides a safety test device for assessing the safety of the full-size solid engine under the action of large extrusion force.
The invention uses the oil cylinder, the control system and the thrust sensor to form an extrusion force applying device, provides the required extrusion force of nearly hundred tons for the test, and matches with the low-resistance extrusion plate to ensure that the actual extrusion force spectrum applied on the engine is consistent with the set extrusion force spectrum as much as possible, thereby meeting the requirements of extrusion force precision and extrusion force-time spectrum. The double-layer elastic air cushion is designed at the bottom of the engine to reduce the interference of the vertical deformation of the engine on the test when the extrusion force is horizontally loaded, so that the state of the vertical loading extrusion force is consistent with that of the airplane when the airplane lands.
As shown in fig. 1, the safety test device for checking the safety of the full-size solid engine under the action of large extrusion force in the embodiment includes a pressure-bearing wall 1, an elastic air cushion, an extrusion plate, a pressure sensor 5 and a horizontal loading system.
One side of the tested full-size solid engine 2 is abutted against the pressure-bearing wall 1 and placed on the elastic air cushion; the extrusion plate is arranged on the other side of the measured full-size solid engine 2 and is connected with the horizontal loading system through a pressure sensor 5; the horizontal loading system applies a horizontally loaded pressing force to the full-size solid engine 2 to be measured through the pressing plate.
The horizontal loading system comprises an oil cylinder 6, a control system 9 and an oil path system 8, wherein the control system 9 controls the oil path system 8 and the oil cylinder 6 to generate required extrusion force according to the set extrusion force-time spectrum requirement, and the required extrusion force is loaded on the low-resistance extrusion plate 4 through the pressure sensor 5.
The extrusion plate adopts low resistance extrusion plate 4, low resistance extrusion plate 4 adopts smooth gyro wheel cooperation with ground.
The elastic air cushion adopts a double-layer elastic air cushion 3, when the tested full-size solid engine 2 is deformed correspondingly, the upper layer elastic air cushion is broken and leaks air, and the tested full-size solid engine 2 is continuously supported by the lower layer elastic air cushion.
And the oil way system 8 and the control system 9 are separated from the pressure-bearing wall 1, the elastic air cushion, the extrusion plate, the pressure sensor 5 and the oil cylinder 6 through an explosion-proof wall 7.
In the test, the oil cylinder 6, the pressure sensor 5 and the control system 7 meet the requirements of precision and extrusion force-time spectrum according to the extrusion force required by the test. The low-resistance extrusion plate 4 is designed according to the requirements of tests on the contact surface in the extrusion process, the bottom of the extrusion plate is designed into an anti-overturning structure, and a smooth roller is additionally arranged, so that the influence of the friction resistance on an extrusion force-time spectrum is reduced, and the extrusion force is quickly and accurately transmitted to the tested full-size solid engine 2. For simplifying the structure, be convenient for test, experimental extrusion force horizontal loading mode that adopts, in the testing process, the engine receives the horizontal extrusion back, can take place to warp, to vertical direction extension, can receive a vertical ascending extrusion force this moment. In fact, when the engine is pressed by the airplane, the pressing force is vertically loaded, and the deformation expansion direction is free and cannot be pressed by the pressing force from the expansion direction. Therefore, the design of the test device should minimize the interference of the vertical deformation to the test, and the present embodiment adopts the double-layer elastic air cushion 3 at the bottom of the engine to support, so that the state of the vertical loading extrusion force is consistent with that of the airplane landing, and the main principle is as follows: because the extrusion force is applied in the horizontal direction in the embodiment, the deformation of the engine in the extrusion process is in the vertical direction, and if the bottom of the engine is directly contacted with the ground or a rigid structure, a reverse acting force can be generated, and the acting force can greatly interfere with the test result. Therefore, the invention adopts the elastic air cushion to be placed at the bottom of the engine. The double-layer elastic air cushion is adopted to ensure that the upper air cushion is broken and deflated under certain pressure in the deformation process of the engine, so that the reverse pressure to the engine is reduced as much as possible.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (2)
1. The utility model provides a security test device of examination full-size solid engine under big extrusion power which characterized in that: comprises a pressure-bearing wall (1), an elastic air cushion, an extrusion plate, a pressure sensor (5) and a horizontal loading system;
one side of the tested full-size solid engine (2) is abutted against the pressure-bearing wall (1) and placed on the elastic air cushion;
the elastic air cushion adopts a double-layer elastic air cushion (3), when the tested full-size solid engine (2) is correspondingly deformed, the upper layer of the elastic air cushion is broken and leaks air, and the tested full-size solid engine (2) is continuously supported by the lower layer of the elastic air cushion;
the extrusion plate is arranged on the other side of the measured full-size solid engine (2) and is connected with the horizontal loading system through a pressure sensor (5); the horizontal loading system applies horizontal loading extrusion force to the measured full-size solid engine (2) through the extrusion plate;
the horizontal loading system comprises an oil cylinder (6), a control system (9) and an oil circuit system (8), wherein the control system (9) controls the oil circuit system (8) and the oil cylinder (6) to generate required extrusion force according to the set extrusion force-time spectrum requirement, and the extrusion force is loaded on the extrusion plate through a pressure sensor (5);
the extrusion plate adopts low resistance extrusion plate (4), low resistance extrusion plate (4) adopt smooth gyro wheel cooperation with ground.
2. The device for examining the safety of the full-size solid engine under the action of the large extrusion force according to claim 1, is characterized in that: and the oil circuit system (8) and the control system (9) are separated from the pressure-bearing wall (1), the elastic air cushion, the extrusion plate, the pressure sensor (5) and the oil cylinder (6) through an explosion-proof wall (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810571086.1A CN108896316B (en) | 2018-06-05 | 2018-06-05 | Safety test device for checking full-size solid engine under action of large extrusion force |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810571086.1A CN108896316B (en) | 2018-06-05 | 2018-06-05 | Safety test device for checking full-size solid engine under action of large extrusion force |
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| Publication Number | Publication Date |
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| CN108896316A CN108896316A (en) | 2018-11-27 |
| CN108896316B true CN108896316B (en) | 2020-07-14 |
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| CN201810571086.1A Active CN108896316B (en) | 2018-06-05 | 2018-06-05 | Safety test device for checking full-size solid engine under action of large extrusion force |
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| CN110118699A (en) * | 2019-04-30 | 2019-08-13 | 广州供电局有限公司 | Cable armored cassette detection device |
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| CN101832850A (en) * | 2010-03-22 | 2010-09-15 | 苏州苏试试验仪器有限公司 | Drop and crash safety test machine |
| CN103245555A (en) * | 2013-05-10 | 2013-08-14 | 宝鸡石油钢管有限责任公司 | Multifunctional compound loading test device of full-size oil gas tubular product |
| KR101405228B1 (en) * | 2013-07-01 | 2014-06-10 | 기아자동차 주식회사 | Engine test device |
| CN104002988A (en) * | 2014-04-17 | 2014-08-27 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for implementing aircraft arresting static test |
| CN105527092A (en) * | 2016-02-29 | 2016-04-27 | 西安航空动力股份有限公司 | Aero-engine main force bearing component overall static strength assessment test system and method |
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2018
- 2018-06-05 CN CN201810571086.1A patent/CN108896316B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832850A (en) * | 2010-03-22 | 2010-09-15 | 苏州苏试试验仪器有限公司 | Drop and crash safety test machine |
| CN103245555A (en) * | 2013-05-10 | 2013-08-14 | 宝鸡石油钢管有限责任公司 | Multifunctional compound loading test device of full-size oil gas tubular product |
| KR101405228B1 (en) * | 2013-07-01 | 2014-06-10 | 기아자동차 주식회사 | Engine test device |
| CN104002988A (en) * | 2014-04-17 | 2014-08-27 | 中国航空工业集团公司沈阳飞机设计研究所 | Method for implementing aircraft arresting static test |
| CN105527092A (en) * | 2016-02-29 | 2016-04-27 | 西安航空动力股份有限公司 | Aero-engine main force bearing component overall static strength assessment test system and method |
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