CN214149741U - High-temperature environment vibration fatigue test system - Google Patents
High-temperature environment vibration fatigue test system Download PDFInfo
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- CN214149741U CN214149741U CN202023113642.2U CN202023113642U CN214149741U CN 214149741 U CN214149741 U CN 214149741U CN 202023113642 U CN202023113642 U CN 202023113642U CN 214149741 U CN214149741 U CN 214149741U
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- sonar data
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Abstract
The utility model discloses a high temperature environment vibration fatigue test system, including the fastening frock that is used for supporting fixed test piece, a vibrating device for providing the exciting force for the test piece, a temperature control box for providing high temperature environment for the test piece, a measuring element for carrying out the measurement to the mechanical parameter of test piece, a dynamic signal analysis unit for controlling vibrating device's vibration the control unit and being used for carrying out the analysis to the test piece according to measuring element's measured data, measuring element can move out locate the temperature control incasement, high temperature environment vibration fatigue test system is still including being used for carrying out the sonar data collection station of sonar signal collection and the sonar data processing unit that is used for carrying out the processing to the sound that sonar data collection station gathered to the test piece, sonar data collection station with temperature control box outside is all located to sonar data processing unit. The utility model discloses realize under high temperature environment through sonar monitoring (non-contact) test piece fatigue state, reach experimental effect.
Description
Technical Field
The utility model belongs to the technical field of the vibration, concretely relates to high temperature environment vibration fatigue test system.
Background
At present, vibration fatigue tests are carried out in a normal-temperature test environment, a strain foil is usually attached or a laser sensor is usually used for carrying out the vibration fatigue tests on a test piece, and the vibration fatigue tests are relatively easy to realize. However, the requirement for vibration fatigue test in a high-temperature test environment is higher and higher, and the traditional strain foil or laser sensor is sensitive to temperature and cannot work normally in the high-temperature environment, so that whether the test piece is subjected to fatigue damage or not cannot be judged. Therefore, there is a need for a monitoring system that can perform vibration fatigue tests in high temperature environments. The study is directed to a sonar vibration fatigue monitoring test in a high temperature environment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high temperature environment vibration fatigue test system realizes reaching experimental effect through sonar monitoring (non-contact) test piece fatigue state under high temperature environment.
In order to achieve the above object, the present invention provides the following technical solutions: a high-temperature environment vibration fatigue test system comprises a fastening tool for supporting and fixing a test piece, a vibration device for providing exciting force for the test piece, a temperature control box for providing a high-temperature environment for the test piece, a measuring element for measuring mechanical parameters of the test piece, a vibration control unit for controlling the vibration device and a dynamic signal analysis unit for analyzing the test piece according to the measurement data of the measuring element,
the high-temperature environment vibration fatigue test system further comprises a sonar data collector and a sonar data processing unit, the sonar data collector is used for collecting sonar signals of a test piece, the sonar data processing unit is used for processing sounds collected by the sonar data collector, and the sonar data collector and the sonar data processing unit are both arranged outside the temperature control box.
Furthermore, the sonar data collector is arranged in a heat insulation box.
Furthermore, the measuring element is a displacement sensor for measuring the deformation and displacement of the test piece, and the measuring element is installed on a bearing table of the vibration device.
Furthermore, the test piece is a horizontally clamped cylindrical test piece, and the sonar data collector and the measuring element are respectively arranged above and below the cylindrical test piece.
Further, the measuring element is a laser sensor.
Furthermore, the measuring element is a resistance strain gauge for measuring the deformation stress of the test piece, and the resistance strain gauge is adhered to the test piece.
Further, the resistance strain gauge is a resistance strain sheet or a resistance strain flower.
Furthermore, the bearing table of the vibration device is a moving coil assembly or a sliding table assembly.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model discloses a high temperature environment vibration fatigue test system adopts the vibration fatigue test method of fixed-frequency vibration when vibrating under the high temperature environment, adopts the vibration frequency of sonar data collection station and sonar data processing apparatus monitoring test piece, and the signal of gathering should be a set of sinusoidal curve, utilizes the vibration state of this sinusoidal curve monitoring test piece under the high temperature environment. If the test piece cracks during vibration, the curve collected by the sonar collecting instrument changes and is not a sine curve any more. Based on the above, whether the test piece has fatigue failure is judged. The invention can make up the test deficiency that the traditional strain foil or laser sensor can not monitor in high temperature environment, and realize non-contact monitoring effect.
Drawings
Fig. 1 is the utility model discloses a high temperature environment vibration fatigue test system's schematic structure diagram.
Wherein, 1, a test piece; 2. fastening a tool; 3. a vibrating device; 4. a temperature control box; 5. a measuring element; 6. a vibration control unit; 7. a dynamic signal analysis unit; 8. a sonar data collector; 9. sonar data processing means; 10. an insulating box.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following is a preferred embodiment of the present invention, but is not intended to limit the scope of the present invention.
Example one
Referring to fig. 1, as shown in the figure, a high-temperature environment vibration fatigue test system comprises a fastening tool 2 for supporting and fixing a test piece 1, a vibration device 3 for providing an exciting force for the test piece 1, a temperature control box 4 for providing a high-temperature environment for the test piece 1, a measuring element 5 for measuring mechanical parameters of the test piece 1, a vibration control unit 6 for controlling the vibration device 3, and a dynamic signal analysis unit 7 for analyzing the test piece 1 according to measurement data of the measuring element 5,
the measuring element 5 can be moved out and arranged in the temperature control box 4, the high-temperature environment vibration fatigue test system further comprises a sonar data collector 8 for collecting sonar signals of the test piece 1 and a sonar data processing unit 9 for processing sound collected by the sonar data collector 8, and the sonar data collector 8 and the sonar data processing unit 9 are both arranged outside the temperature control box 4.
In the preferred embodiment of this embodiment, the sonar data collector 8 is located within an insulated housing 10.
In a preferred embodiment of the present embodiment, the measuring element 5 is a displacement sensor for measuring the deformation and displacement of the test piece 1, and the measuring element is mounted on a bearing table of the vibration device 3.
In a preferred embodiment of the present embodiment, the test piece 1 is a horizontally clamped cylindrical test piece, and the sonar data collector 8 and the measuring element 5 are respectively disposed above and below the cylindrical test piece.
In a preferred embodiment of the present embodiment, the measuring element 5 is a laser sensor.
In a preferred embodiment of the present embodiment, the bearing platform of the vibration device 3 is a moving coil assembly.
The vibration device provides sinusoidal exciting force required by a test, the temperature control box is used for generating a set high-temperature environment, the laser sensor is used for monitoring deformation displacement of a test piece, the acceleration sensor is used for monitoring exciting acceleration of the vibration device, the vibration control unit is a vibration controller, the Vibstar vibration controller is used for controlling exciting acceleration of the vibration device, and the dynamic signal analysis unit is used for collecting signals of the laser sensor for the dynamic signal test dynamic signal analysis unit.
The fatigue test system needs to be calibrated at normal temperature before being used at high temperature. The laser sensor and the sonar data collector monitor the test piece (the upper surface and the lower surface at the same position) at the same time, and the signals collected by the sonar data collector are corrected through the signals collected by the laser sensor. And taking the modified sonar data collector as a reference, removing the laser sensor, and collecting vibration signals of the test piece by the sonar data collector under the same vibration condition in a high-temperature environment, wherein the collected signals are similar to signals at normal temperature (different in amplitude) and are sinusoidal signals. If the signal amplitude and the waveform change in the vibration process, the fatigue damage of the test piece is indicated, and the vibration test is stopped. Therefore, whether the test piece is subjected to fatigue failure can be effectively judged. The utility model discloses in, receive the influence of high temperature environment and sonar characteristic factor, the test piece structure can not be too complicated, and the volume can not be too big, and is comparatively ideal to the test piece effect of structure singleness. The utility model discloses can realize non-contact monitoring vibration fatigue test under high temperature environment, realize the means that can't adapt to high temperature environment monitoring in traditional vibration fatigue test method, be a neotype high temperature vibration fatigue test method.
Example two
The rest is the same as the first embodiment, except that the bearing table of the vibration device is a sliding table assembly.
EXAMPLE III
The rest of the test piece is the same as the first embodiment, except that the measuring element is a resistance strain gauge for measuring the deformation stress of the test piece, the resistance strain gauge is adhered on the test piece, and the resistance strain gauge is a resistance strain sheet or a resistance strain flower.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention, including by way of illustration of the disclosed embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A high-temperature environment vibration fatigue test system comprises a fastening tool for supporting and fixing a test piece, a vibration device for providing exciting force for the test piece, a temperature control box for providing a high-temperature environment for the test piece, a measuring element for measuring mechanical parameters of the test piece, a vibration control unit for controlling the vibration device and a dynamic signal analysis unit for analyzing the test piece according to the measurement data of the measuring element,
the high-temperature environment vibration fatigue testing system is characterized in that the measuring element is arranged in the temperature control box in a removable manner, the high-temperature environment vibration fatigue testing system further comprises a sonar data collector for collecting sonar signals of a test piece and a sonar data processing unit for processing sounds collected by the sonar data collector, and the sonar data collector and the sonar data processing unit are arranged outside the temperature control box.
2. The high-temperature environment vibration fatigue test system of claim 1, wherein the sonar data collector is arranged in an insulated box.
3. The high-temperature environment vibration fatigue test system according to claim 1, wherein the measuring element is a displacement sensor for measuring deformation and displacement of the test piece, and the measuring element is mounted on a bearing table of the vibration device.
4. The high-temperature environment vibration fatigue test system of claim 3, wherein the test piece is a horizontally clamped cylindrical test piece, and the sonar data collector and the measuring element are respectively arranged above and below the cylindrical test piece.
5. The high-temperature environment vibration fatigue testing system of claim 3, wherein the measuring element is a laser sensor.
6. The high temperature environment vibration fatigue test system of claim 1, wherein the measuring element is a resistance strain gauge for measuring a deformation stress of the test piece, and the resistance strain gauge is attached to the test piece.
7. The high-temperature environment vibration fatigue test system of claim 6, wherein the resistance strain gauge is a resistance strain gauge or a resistance strain gauge.
8. The high-temperature environment vibration fatigue test system of claim 1, wherein the bearing table of the vibration device is a moving coil assembly or a sliding table assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023113642.2U CN214149741U (en) | 2020-12-22 | 2020-12-22 | High-temperature environment vibration fatigue test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023113642.2U CN214149741U (en) | 2020-12-22 | 2020-12-22 | High-temperature environment vibration fatigue test system |
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| Publication Number | Publication Date |
|---|---|
| CN214149741U true CN214149741U (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023113642.2U Active CN214149741U (en) | 2020-12-22 | 2020-12-22 | High-temperature environment vibration fatigue test system |
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| CN (1) | CN214149741U (en) |
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2020
- 2020-12-22 CN CN202023113642.2U patent/CN214149741U/en active Active
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