CN112284669B - Multi-specification impact response spectrum waveform testing device and testing method - Google Patents
Multi-specification impact response spectrum waveform testing device and testing method Download PDFInfo
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- CN112284669B CN112284669B CN202010991510.5A CN202010991510A CN112284669B CN 112284669 B CN112284669 B CN 112284669B CN 202010991510 A CN202010991510 A CN 202010991510A CN 112284669 B CN112284669 B CN 112284669B
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Abstract
One or more embodiments of the present specification provide a multi-specification impulse response spectrum waveform testing apparatus, including: the device comprises a bottom plate, a displacement device, a pneumatic impact system, a resonance plate, a mounting rack, a waveform pad and detection equipment; the displacement device is arranged on the bottom plate; the pneumatic impact system is arranged on the displacement device and can move on the bottom plate under the driving of the displacement device; the mounting rack is arranged on the bottom plate; the resonant plate is arranged at one end, far away from the bottom plate, of the mounting frame; one end of the resonance plate is fixedly connected with the mounting frame, and the other end of the resonance plate is elastically connected with the mounting frame; the wave-shaped pad is arranged on one surface of the resonance plate close to the bottom plate, and the position of the wave-shaped pad corresponds to that of the pneumatic impact system; the detection device is connected with the resonance plate. The combination of the modules enables the warhead to generate multi-specification waveforms when impacting the resonance plate.
Description
Technical Field
One or more embodiments of the present disclosure relate to the field of impact test technologies, and in particular, to a multi-specification impact response spectrum waveform test apparatus and a test method.
Background
In the conventional technology, the simulation of the impact waveform is mostly realized by adopting a free-fall impact tester. Explosion or impact shock waves are complex oscillatory shock waveforms, and the traditional free-fall type shock test cannot meet the actual requirement.
In the prior art, a complex oscillation type impact waveform is generally simulated by adopting an equivalent damage principle, and an impact response spectrum is taken as a standard for simulating an impact environment. The realization of the shock response spectrum waveform is realized by mature test equipment, such as an electromagnetic vibration table, a mechanical pendulum shock response spectrum tester, a pneumatic shock response spectrum tester and the like, and all the equipment can generate the shock response spectrum waveform with certain 'specifications'. The pneumatic impact response spectrum testing machine can achieve higher frequency and higher acceleration magnitude, but because the position of the impact point is fixed, the waveform generated by the resonance plate from the impact point is single, and the requirements of more specifications of waveform technical indexes cannot be met. Therefore, an impact response spectrum test device capable of adjusting the position of an impact point and enabling a resonance plate to generate waveforms of various specifications is urgently needed.
Disclosure of Invention
In view of the above, one or more embodiments of the present disclosure are directed to a multi-specification impulse response spectrum waveform testing apparatus, so as to solve the problem of generating a single waveform in the conventional apparatus.
In view of the above, one or more embodiments of the present disclosure provide a multi-specification impulse response spectrum waveform testing apparatus, including: the device comprises a bottom plate, a displacement device, a pneumatic impact system, a resonance plate, a mounting rack, a waveform pad and detection equipment;
the displacement device is arranged on the bottom plate;
the pneumatic impact system is arranged on the displacement device and can move on the bottom plate under the driving of the displacement device;
the mounting rack is arranged on the bottom plate;
the resonant plate is arranged at one end, far away from the bottom plate, of the mounting frame; one end of the resonant plate is fixedly connected with the mounting rack, and the other end of the resonant plate is elastically connected with the mounting rack;
the wave-shaped pad is arranged on one surface, facing the bottom plate, of the resonance plate and corresponds to the pneumatic impact system;
the detection device is connected with the resonance plate.
Optionally, the pneumatic percussion system comprises: the device comprises a base, a guide cylinder, an air source and a warhead;
the base is connected with the displacement device in a sliding manner;
a cylinder opening at one end of the guide cylinder is fixedly connected with the base, and a cylinder opening at the other end faces the resonance plate;
the warhead is arranged in the guide cylinder;
the air source is connected to the base through a pipeline.
Optionally, the mounting bracket includes: the device comprises a first elastic component, a second elastic component, a fixing plate and a pair of supporting frames;
the pair of supporting frames are arranged on the bottom plate in an interval opposite mode;
one end of the resonance plate is fixedly connected with one support frame; one side of the other end of the resonance plate, which is close to the bottom plate, is connected with the other support frame through the first elastic assembly; the other end of the resonance plate, which is far away from one surface of the bottom plate, is provided with the second elastic component; the fixing plate is connected with the second elastic assembly.
Optionally, the elastic component is disposed at a corner of the resonator plate.
Optionally, the elastic component is provided as a rubber block.
Optionally, the wave pad is disposed corresponding to the pneumatic impact system.
Optionally, the wave pad is detachably connected to the resonator plate.
Optionally, the displacement device is provided as a sliding guide.
Optionally, the detecting device is configured to detect a size of a waveform generated when the warhead impacts the resonance plate under the pressure of the air source.
The application also discloses a test method using the multi-specification impact response spectrum waveform test device, which specifically comprises the following steps:
arranging a displacement device on a bottom plate, arranging a pneumatic impact system on the displacement device, arranging an installation frame on the bottom plate, and arranging a resonance plate at one end of the installation frame, which is far away from the bottom plate; one end of the resonant plate is fixedly connected with the mounting frame, and the other end of the resonant plate is elastically connected with the mounting frame; the wave-shaped pad is arranged on one surface of the resonance plate close to the bottom plate and corresponds to the pneumatic impact system; the detection equipment is connected with the resonance plate; the following impulse response spectrum waveform test was performed:
moving the pneumatic impact system along the displacement device, changing the impact position on the resonance plate, and detecting the waveforms generated by different impact points by using detection equipment; the pneumatic impact system controls the impact speed and changes the impact force on the resonant plate.
From the above, it can be seen that one or more embodiments of the present disclosure provide a multi-specification impulse response spectrum waveform testing apparatus,
the method comprises the following steps: the device comprises a bottom plate, a displacement device, a resonance plate, a mounting frame, a waveform pad and detection equipment; arranging a displacement device on the bottom plate; the warhead in the guide cylinder is flushed out of the gas cylinder by gas provided by a gas source to impact the waveform pad and the resonance plate, one end of the resonance plate is fixed by an elastic component, an impact system is moved on a displacement device to change the impact position, the speed of the warhead impacting the resonance plate is changed by the pressure of the gas source, and the elastic component is arranged at one end of the resonance plate, so that when the position of the impact system is adjusted and started to change the impact position, the distance between the elastic component and the elastic component is different, and the generated waveforms are also different; therefore, the shock response spectrum waveform testing device can realize shock response waves of various specifications.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.
FIG. 1 is a schematic structural diagram illustrating one or more embodiments of a multi-specification impulse response spectrum waveform testing apparatus according to the present disclosure;
FIG. 2 is a left side view of one or more embodiments of a multi-specification impulse response spectrum waveform testing apparatus according to the present disclosure;
FIG. 3 is a front plan view of one or more embodiments of a multi-specification impulse response spectrum waveform testing apparatus according to the present disclosure.
1-a bottom plate; 2-a displacement device; 3-a base; 4, a guide cylinder; 5-warhead; 6-gas source; 7-a resonant panel; 8-wave pad; 9-an elastic component; 10-fixing the plate; 11-a pneumatic percussion system; 12-a mounting frame; 13-a detection device; 14-support frame.
Detailed Description
For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
It is to be understood that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present disclosure should have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Fig. 1 is a schematic structural diagram of a multi-specification impulse response spectrum waveform testing apparatus according to the present application, where the multi-specification impulse response spectrum waveform testing apparatus includes: the device comprises a bottom plate 1, a displacement device 2, a pneumatic impact system 11, a resonance plate 7, a mounting frame 12, a wave-shaped pad 8 and a detection device 13;
in some embodiments, the displacement device 2 is disposed on the bottom plate 1;
the pneumatic impact system 11 is arranged on the displacement device 2 and can move on the bottom plate 1 under the driving of the displacement device 2;
the mounting rack 12 is arranged on the bottom plate 1;
the resonance plate 7 is arranged at one end of the mounting frame 12 far away from the bottom plate 1; one end of the resonance plate 7 is fixedly connected with the mounting frame 12, and the other end of the resonance plate is elastically connected with the mounting frame 12;
the waveform pad 8 is arranged on one surface, facing the bottom plate 1, of the resonance plate 7 and corresponds to the pneumatic impact system 11;
the detection device 13 is connected to the resonator plate 7.
Wherein, the detection device 13 is connected with the resonance plate 7 through an electric wire and is used for receiving the waveform generated when the warhead 5 impacts the resonance plate 7 through the guide cylinder 4 under the action of the air source 6.
In some embodiments, the detection device may be a desktop computer, a notebook computer, a tablet computer, or other terminal devices.
For example, moving the pneumatic percussion system 11 such that the pneumatic percussion system 11 moves in position along the displacement device 2 to change the position of the percussion point; the pressure of the air source 6 is adjusted while the position is moved, and the impact speed of the warhead 5 impacting the resonance plate 7 is changed; the elastic component 9 at one end of the resonant plate 7 changes the boundary constraint state of the resonant plate 7 by changing the magnitude of the elastic constraint force, so as to change the frequency of the waveform generated by the resonant plate 7; the detection device 13 can detect waveforms of various specifications.
Wherein, the multiple specifications refer to: the shock response spectrum has different wave forms in frequency range, different inflection points of the shock response spectrum wave forms and different acceleration of the shock response spectrum.
As shown in fig. 3, in some embodiments, the pneumatic percussion system includes: the device comprises a base 3, a guide cylinder 4, an air source 6 and a warhead 5; the pneumatic impact system 11 is arranged on the displacement device 2 and can move on the bottom plate 1 under the driving of the displacement device 2, so that the position of the warhead 5 impacting the resonance plate 7 is changed.
In some embodiments, the base 3 is slidably connected to the displacement device 2; the displacement device 2 may be a slide rail, a screw rod device or an air cylinder device.
A cylinder opening at one end of the guide cylinder 4 is fixedly connected with the base 3, and a cylinder opening at the other end faces the resonance plate 7; the warhead 5 is flushed to the resonance plate 7 by the pressure of the air source reaching the guide cylinder 4; the air source 6 is connected to the base 3 through a pipe.
As shown in fig. 2, in some embodiments, the mounting frame 12 includes: the elastic component 9, the fixed plate 1 and the pair of supporting frames 14; a pair of the supporting frames 14 are oppositely arranged on the bottom plate 1 at intervals; one end of the resonance plate 7 is fixedly connected with one support frame 14, and the other end of the resonance plate 7 is connected with the other support frame 12 through the elastic component 9; the fixing plate 1 is connected with the elastic assembly 9.
In some embodiments, the other end of the resonator plate 7 is connected to another support frame 12 through the elastic component 9; the fixing plate 1 is connected with the elastic component 9; the resonance plate 7 and the elastic component 9 are arranged between the support frame 12 and the fixing plate 10, the elastic component 9 is arranged at the corner of the resonance plate 7, and the connecting surfaces of the resonance plate 7, the fixing plate 10 and the support frame 12 are arranged and relatively dispersed. In some embodiments, the elastic element 9 is provided as a rubber block, and may also be provided as a rigid spring.
The wave form pad 7 with guide cylinder 4 corresponds the setting, just wave form pad 8 can dismantle connect in resonance board 7, warhead 5 pushes out guide cylinder 4 under the effect of 6 pressures of air supply, and warhead 5's power reaches wave form pad 8 earlier, passes to resonance board by the wave form pad again, arrives elastic component again, and when the effect point that changes the warhead, the wave form of multiple specification can be detected to the check out test set.
In some embodiments, the impact response spectrum waveform can be realized by an electromagnetic vibration table, a mechanical pendulum bob and the like besides the pneumatic impact system used in the application, but the generated response spectrum waveform has narrow adjustable range, single response spectrum waveform form and can not realize different impact speeds.
Moving an impact system on a displacement device to change the impact position, changing the speed of the warhead impacting the resonance plate through the pressure of an air source, arranging an elastic component at one end of the resonance plate, and changing the position of the impact point when the impact system is adjusted and started, wherein the distance between the elastic component and the elastic component is different, and the generated waveforms are also different; therefore, the shock response spectrum waveform testing device can realize shock response waves of various specifications.
The test method implemented by adopting the multi-specification impact response spectrum waveform test device comprises the following specific steps:
arranging a displacement device on a bottom plate, arranging a pneumatic impact system on the displacement device, arranging an installation frame on the bottom plate, and arranging a resonance plate at one end of the installation frame, which is far away from the bottom plate; one end of the resonant plate is fixedly connected with the mounting frame, and the other end of the resonant plate is elastically connected with the mounting frame; the wave-shaped pad is arranged on one surface of the resonance plate close to the bottom plate and corresponds to the pneumatic impact system; the detection equipment is connected with the resonance plate; the following impulse response spectrum waveform test was performed:
moving the pneumatic impact system along the displacement device, changing the impact position on the resonance plate, and detecting the waveforms generated by different impact points by using detection equipment; the pneumatic impact system controls the impact speed and changes the impact force on the resonant plate.
It is understood that the apparatus may be implemented and detected by any device, platform, cluster of devices having computing and processing capabilities.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, the functionality of the various modules may be implemented in the same one or more pieces of software and/or hardware in implementing one or more embodiments of the present description.
The apparatus in the foregoing embodiment is used for implementing the corresponding method in the foregoing embodiment, and has the beneficial effects of the corresponding method embodiment, which are not described herein again.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.
It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.
Claims (6)
1. A multi-specification impulse response spectrum waveform testing device is characterized by comprising: the device comprises a bottom plate, a displacement device, a pneumatic impact system, a resonance plate, a mounting rack, a waveform pad and detection equipment;
the displacement device is arranged on the bottom plate;
the pneumatic impact system is arranged on the displacement device and can move on the bottom plate under the driving of the displacement device; wherein the pneumatic percussion system comprises: the device comprises a base, a guide cylinder, an air source and a warhead;
the base is connected with the displacement device in a sliding manner;
a cylinder opening at one end of the guide cylinder is fixedly connected with the base, and a cylinder opening at the other end faces the resonance plate;
the warhead is arranged in the guide cylinder;
the air source is connected to the base through a pipeline;
the mounting rack is arranged on the bottom plate; the mounting bracket includes: the device comprises a first elastic component, a second elastic component, a fixing plate and a pair of supporting frames;
the pair of supporting frames are arranged on the bottom plate in an interval opposite mode;
one end of the resonance plate is fixedly connected with one support frame; one side of the other end of the resonance plate, which is close to the bottom plate, is connected with the other support frame through the first elastic assembly; the other end of the resonance plate, which is far away from one surface of the bottom plate, is provided with the second elastic component; the first elastic component and the second elastic component are arranged at the corners of the resonant plate;
the fixing plate is connected with the second elastic assembly;
the resonant plate is arranged at one end, far away from the bottom plate, of the mounting frame; one end of the resonance plate is fixedly connected with the mounting frame, and the other end of the resonance plate is elastically connected with the mounting frame;
the wave-shaped pad is arranged on one surface, close to the bottom plate, of the resonance plate and corresponds to the guide cylinder of the pneumatic impact system, and the wave-shaped pad is detachably connected to the resonance plate;
the detection device is connected with the resonance plate.
2. The apparatus of claim 1, wherein the resilient member is configured as a rubber block.
3. The apparatus according to claim 1, wherein the wave pad is disposed on a surface of the resonator plate facing the bottom plate, and is disposed corresponding to the pneumatic percussion system, and specifically comprises:
the wave-shaped pad is arranged corresponding to the guide cylinder.
4. The apparatus of claim 1, wherein the displacement device is configured as a sliding guide.
5. The apparatus of claim 1, wherein the detecting device is configured to detect a magnitude of a waveform generated by the bullet impacting the resonator plate under the pressure of the air source.
6. A test method using the multi-specification impulse response spectrum waveform test device according to any one of claims 1-5, characterized by comprising the following steps:
arranging a displacement device on a bottom plate, arranging a pneumatic impact system on the displacement device, arranging an installation frame on the bottom plate, and arranging a resonance plate at one end of the installation frame, which is far away from the bottom plate; one end of the resonant plate is fixedly connected with the mounting frame, and the other end of the resonant plate is elastically connected with the mounting frame; the wave-shaped pad is arranged on one surface of the resonance plate close to the bottom plate and corresponds to the pneumatic impact system; the detection equipment is connected with the resonance plate; the following impulse response spectrum waveform test was performed:
moving the pneumatic impact system along the displacement device, changing the impact position on the resonance plate, and detecting the waveforms generated by different impact points by using detection equipment; the pneumatic impact system controls the impact speed and changes the impact force on the resonant plate.
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| CN114046951B (en) * | 2021-11-25 | 2024-03-12 | 北京卫星环境工程研究所 | Spacecraft explosion impact response spectrum vertical excitation simulation system |
| CN114544129A (en) * | 2022-01-07 | 2022-05-27 | 航天科工防御技术研究试验中心 | Electromagnetic control impact response spectrum generation system and working method thereof |
| CN114544126B (en) * | 2022-01-07 | 2024-05-28 | 航天科工防御技术研究试验中心 | Impact response spectrum test system and method based on multi-source control |
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| US7123129B1 (en) * | 1995-08-14 | 2006-10-17 | Intermec Ip Corp. | Modulation of the resonant frequency of a circuit using an energy field |
| DE19818579A1 (en) * | 1998-04-25 | 1999-10-28 | Univ Weimar Bauhaus | Impact generator for investigating vibrational properties of mechanical structures especially buildings, construction works and parts |
| GB9902585D0 (en) * | 1999-02-06 | 1999-03-24 | New Transducers Ltd | Vibration exciter |
| KR101595422B1 (en) * | 2014-05-07 | 2016-02-19 | 한국철도기술연구원 | Shock Response Spectrum measuring methods for a dynamic test of the tank container |
| CN104266814B (en) * | 2014-10-17 | 2017-01-11 | 苏州东菱振动试验仪器有限公司 | Gas gun type impact response spectrum testing machine |
| CN108534976B (en) * | 2018-03-16 | 2019-09-24 | 西北工业大学 | A kind of shock response spectrum generator applied on vertical impact testing machine |
| CN208688768U (en) * | 2018-08-06 | 2019-04-02 | 海检检测有限公司 | A kind of shock response spectrum test impact platform |
| CN109506874B (en) * | 2018-11-26 | 2020-09-08 | 西北工业大学 | Impact response spectrum test device and test method based on elastic stress wave loading |
| CN210513596U (en) * | 2019-06-14 | 2020-05-12 | 航天科工防御技术研究试验中心 | Screening test tool |
| CN111537176A (en) * | 2020-05-10 | 2020-08-14 | 无锡湖山智能科技有限公司 | A shock resistance detection device for big dipper agricultural machinery location monitor terminal |
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