CN210037127U - Thermal vibration coupling test system for equipment base in wide temperature range - Google Patents
Thermal vibration coupling test system for equipment base in wide temperature range Download PDFInfo
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- CN210037127U CN210037127U CN201920984746.9U CN201920984746U CN210037127U CN 210037127 U CN210037127 U CN 210037127U CN 201920984746 U CN201920984746 U CN 201920984746U CN 210037127 U CN210037127 U CN 210037127U
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Abstract
The utility model provides a thermal vibration coupling test system of an equipment base in a wide temperature range, which is used for a use simulation test of the equipment base under a preset condition, and comprises a test platform for fixing the base; heating arrays fixed at the lamp array fixing plates are arranged on the left side and the right side of the base fixing position of the platform; a vibration exciter is suspended above the fixed position of the base by an elastic rope; the output end of the vibration exciter is connected with the vibration exciting rod through the dynamic force sensor; the vibration excitation rod penetrates through the heat insulation top plate downwards to be connected with an excitation point of the base, when in test, the heating array heats the base, and the vibration exciter vertically excites the base outside a thermal field through the vibration excitation rod to enable the base to generate vibration so as to simulate the vibration energy transferred to the base when the equipment vibrates in a thermal environment; the utility model discloses can survey and get the change law of its hot mode attitude characteristic when equipment base structure acutely vibrates under room temperature to 300 ℃ condition, provide reliable foundation for the safety design of wide temperature intra-area equipment base.
Description
Technical Field
The utility model belongs to the technical field of the experimental facilities technique and specifically relates to equipment base hot vibration coupling test system in wide temperature range.
Background
With the increasing innovation of heating technology, the heating means for the structural heat test is more and more. Methods for simulating a thermal environment mainly include air flow heating and radiation heating. Compared with air flow heating, radiation heating has the characteristics of long heating time, strong heating capacity, multi-temperature-zone control and the like, and is an effective and widely-applied full-scale experimental method for structural thermal experiments. Tools commonly used for radiant heating include quartz lamp heaters, graphite heaters, arc lamp heaters. The quartz lamp is easy to control due to adjustable heating power, and is convenient to assemble into heaters with various shapes similar to the appearance of a test piece, so that the quartz lamp is widely used.
The early test is generally divided into a pure thermal test and a pure vibration test due to the limitation of test conditions, and the simplification does not consider the coupling effect of heat and vibration, so that the test result has a large gap from the actual work. With the progress of science and technology, the method of the combined heat and vibration test is gradually widely used by people. At present, high-temperature thermal vibration combined test objects are generally of simple structures such as flat plate structures or equal-diameter pipeline structures, and the like, and the research of thermal vibration test systems of complex structures such as equipment bases and the like is still blank.
Disclosure of Invention
The utility model provides a hot coupling test system that shakes of equipment base in wide temperature range can measure and get its hot mode characteristic's change law when equipment base structure acutely vibrates under room temperature to the 300 ℃ condition, provides reliable foundation for the safety design of equipment base in the wide temperature range.
The utility model adopts the following technical scheme.
The device base thermal vibration coupling test system in the wide temperature range is used for a use simulation test of a device base under a preset condition, and comprises a test platform (10) for fixing a base (16); heating arrays (8) fixed at the lamp array fixing plate (7) are arranged on the left side and the right side of the base fixing position of the platform; a vibration exciter (11) is suspended above the fixed position of the base by an elastic rope; the output end of the vibration exciter (11) is connected with a vibration exciting rod (13) through a dynamic force sensor; the excitation rod penetrates through the heat insulation top plate (14) downwards to be connected with an excitation point of the base, when the test is carried out, the heating array heats the base, and the vibration exciter vertically excites the base outside a thermal field through the excitation rod to enable the base to vibrate so as to simulate the vibration energy transmitted to the base when the equipment vibrates under a thermal environment.
The heating array is a heating array taking a plurality of quartz lamps which are uniformly arranged as a heat source; a small gap is arranged between the quartz lamps; the distance between the heating array and the base is 200-300 mm.
Optical axes (9) penetrate through two ends of the lamp array fixing plate; the lamp array fixing plate is fixed on the optical axis by a fixing shaft bracket (15); optical axes at two ends of the lamp array fixing plate are fixed on the first supporting plate (3) through a guide shaft support (17); universal wheels are arranged at the supporting plate below the lamp array fixing plate; the lamp array moves through the universal wheel to adjust the distance between the lamp array and the base.
Heat insulation side plates (6) are arranged on the front side and the rear side of the base fixing position and are fixed at the second supporting plate (19) through optical axes of the heat insulation side plates; the second supporting plate is arranged on the test platform and fixed by the pressing plate.
A heat insulation top plate (14) is arranged above the base fixing position; the heat insulation top plate is supported by an inclined rod (18) and an optical axis; two ends of the inclined rod are fixed by movable sleeves (12).
Four ceramic extension rods (5) can be fixed at the ribbed plates of the base; an extension rod through hole corresponding to the ceramic extension rod (5) is formed in the heat insulation top plate (14); one end of the ceramic extension rod is arranged at the base, the other end of the ceramic extension rod penetrates through the extension rod through hole, and the end is used for installing an acceleration sensor (2) so that the acceleration sensor is positioned on the cold side of the heat insulation top plate; when the test is carried out, an acceleration signal generated by vibration of the rib plate of the base is transmitted to the acceleration sensor through the ceramic extension rod to be collected and measured.
The acceleration sensor and the dynamic force sensor are both piezoelectric sensors with titanium alloy coated on the surfaces.
The excitation rod and the ceramic extension rod are both formed by rigid high-temperature hollow ceramic materials capable of resisting 1600 ℃; the optical axis and the fixed shaft support are both formed by 304 stainless steel.
The diameter of the ceramic extension rod is 8-10 mm; the test platform is a T-shaped groove cast iron platform; when the test is carried out, a temperature sensor (1) is arranged at the base.
The utility model discloses the device structure is succinct, and the equipment is convenient to can suitably adjust to not unidimensional equipment base, check and provide feasible test scheme with the safety design for the intensity of boats and ships equipment base under high temperature and vibration composite condition, have important engineering using value.
The utility model overcomes the defects of the prior art and provides a thermal vibration coupling test system for a device base in a wide temperature range, which can simulate the actual working condition of the device base (such as the device base of a nuclear power naval vessel power cabin and the engine base of an aerospace aircraft) in a high-temperature environment. When the equipment runs, the equipment base connected with the equipment is excited to vibrate, the system can measure the dynamic change rule of the modal characteristic of the equipment base under the condition of thermo-vibration coupling in a wide temperature range from room temperature to 300 ℃, and a reliable basis is provided for the safety design of the equipment base structure in a high-temperature thermo-vibration environment.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic diagram of the excitation operation principle of the present invention;
FIG. 2 is a schematic view of the heating operation principle of the present invention;
FIG. 3 is a schematic view of a base;
fig. 4 is a schematic view of the present invention;
fig. 5 is a schematic top view of the present invention;
in the figure: 1-a temperature sensor; 2-an acceleration sensor; 3-a first support plate; 4-a dynamic force sensor; 5-ceramic extension rod; 6-heat insulation side plate; 7-lamp array fixing plate; 8-heating the array; 9-optical axis; 10-test platform; 11-a vibration exciter; 12-a diagonal rod sleeve; 13-an excitation rod; 14-heat insulation and heat preservation top plate; 15-fixed shaft support; 16-a base; 17-a guide shaft support; 18-a diagonal bar; 19-second support plate.
Detailed Description
As shown in fig. 1 to 5, the thermal vibration coupling test system for the equipment base in the wide temperature range is used for a use simulation test of the equipment base under a preset condition, and comprises a test platform 10 for fixing a base 16; the left side and the right side of the base fixing position of the platform are provided with heating arrays 8 fixed at the lamp array fixing plate 7; a vibration exciter 11 is suspended above the fixed position of the base by an elastic rope; the output end of the vibration exciter 11 is connected with a vibration exciting rod 13 through a dynamic force sensor 4; the excitation rod penetrates through the heat insulation top plate 14 downwards to be connected with an excitation point of the base, when the test is carried out, the heating array heats the base, and the vibration exciter vertically excites the base outside a thermal field through the excitation rod to enable the base to vibrate so as to simulate vibration energy transmitted to the base when the equipment vibrates in a thermal environment.
The heating array is a heating array taking a plurality of quartz lamps which are uniformly arranged as a heat source; a small gap is arranged between the quartz lamps; the distance between the heating array and the base is 200-300 mm.
Two ends of the lamp array fixing plate are penetrated with optical axes 9; the lamp array fixing plate is fixed on the optical axis by a fixing shaft bracket 15; the optical axes at the two ends of the lamp array fixing plate are fixed on the first supporting plate 3 through a guide shaft support 17; universal wheels are arranged at the supporting plate below the lamp array fixing plate; the lamp array moves through the universal wheel to adjust the distance between the lamp array and the base.
Heat insulation side plates 6 are arranged on the front side and the rear side of the base fixing position and are fixed at the second supporting plate 19 through optical axes of the heat insulation side plates; the second supporting plate is arranged on the test platform and fixed by the pressing plate.
A heat insulation top plate 14 is arranged above the base fixing position; the heat insulation top plate is supported by an inclined rod 18 and an optical axis; the two ends of the diagonal rod are fixed by movable sleeves 12.
Four ceramic extension rods 5 can be fixed at the ribbed plate of the base; an extension rod through hole corresponding to the ceramic extension rod 5 is formed in the heat insulation top plate 14; one end of the ceramic extension rod is arranged at the base, the other end of the ceramic extension rod penetrates through the extension rod through hole, and the end is used for installing the acceleration sensor 2 so that the acceleration sensor is positioned at the cold side of the heat insulation top plate; when the test is carried out, an acceleration signal generated by vibration of the rib plate of the base is transmitted to the acceleration sensor through the ceramic extension rod to be collected and measured.
The acceleration sensor and the dynamic force sensor are both piezoelectric sensors with titanium alloy coated on the surfaces.
The excitation rod and the ceramic extension rod are both formed by rigid high-temperature hollow ceramic materials capable of resisting 1600 ℃; the optical axis and the fixed shaft support are both formed by 304 stainless steel.
The diameter of the ceramic extension rod is 8-10 mm; the test platform is a T-shaped groove cast iron platform; when the test is carried out, a temperature sensor 1 is arranged at the base.
Example (b):
when the high-temperature thermal vibration coupling test of the equipment base is carried out, the two rows of quartz lamp heating arrays enable the surface of the base to form a thermal environment of 300 ℃, and meanwhile, the vibration exciter enables the base to vibrate through the vibration exciting rod, so that a high-temperature thermal vibration coupling test environment is formed. Acceleration signals on the rib plates are transmitted to the outside of the high-temperature thermal field through the ceramic extension rods, vibration signals on the surface of the base are dynamically tracked and measured in real time, an effective dynamic high-temperature test means is provided for developing the equipment base working in a high-temperature environment, and the test device has important engineering application value.
Claims (9)
1. The thermal vibration coupling test system of the equipment base in the wide temperature range is used for the equipment base to use the simulation test under the preset condition, and is characterized in that: the testing system comprises a testing platform (10) for fixing a base (16); heating arrays (8) fixed at the lamp array fixing plate (7) are arranged on the left side and the right side of the base fixing position of the platform; a vibration exciter (11) is suspended above the fixed position of the base by an elastic rope; the output end of the vibration exciter (11) is connected with a vibration exciting rod (13) through a dynamic force sensor; the excitation rod penetrates through the heat insulation top plate (14) downwards to be connected with an excitation point of the base, when the test is carried out, the heating array heats the base, and the vibration exciter vertically excites the base outside a thermal field through the excitation rod to enable the base to vibrate so as to simulate the vibration energy transmitted to the base when the equipment vibrates under a thermal environment.
2. The wide temperature range in-plant pedestal thermal vibration coupling test system of claim 1, wherein: the heating array is a heating array taking a plurality of quartz lamps which are uniformly arranged as a heat source; a small gap is arranged between the quartz lamps; the distance between the heating array and the base is 200-300 mm.
3. The wide temperature range in-plant pedestal thermal vibration coupling test system of claim 1, wherein: optical axes (9) penetrate through two ends of the lamp array fixing plate; the lamp array fixing plate is fixed on the optical axis by a fixing shaft bracket (15); optical axes at two ends of the lamp array fixing plate are fixed on the first supporting plate (3) through a guide shaft support (17); universal wheels are arranged at the supporting plate below the lamp array fixing plate; the lamp array moves through the universal wheel to adjust the distance between the lamp array and the base.
4. The wide temperature range in-plant pedestal thermal vibration coupling test system of claim 3, wherein: heat insulation side plates (6) are arranged on the front side and the rear side of the base fixing position and are fixed at the second supporting plate (19) through optical axes of the heat insulation side plates; the second supporting plate is arranged on the test platform and fixed by the pressing plate.
5. The wide temperature range in-plant pedestal thermal vibration coupling test system of claim 4, wherein: a heat insulation top plate (14) is arranged above the base fixing position; the heat insulation top plate is supported by an inclined rod (18) and an optical axis; two ends of the inclined rod are fixed by movable sleeves (12).
6. The wide temperature range in-plant pedestal thermal vibration coupling test system of claim 5, wherein: four ceramic extension rods (5) can be fixed at the ribbed plates of the base; an extension rod through hole corresponding to the ceramic extension rod (5) is formed in the heat insulation top plate (14); one end of the ceramic extension rod is arranged at the base, the other end of the ceramic extension rod penetrates through the extension rod through hole, and the end is used for installing an acceleration sensor so that the acceleration sensor is positioned on the cold side of the heat insulation top plate; when the test is carried out, an acceleration signal generated by vibration of the rib plate of the base is transmitted to the acceleration sensor through the ceramic extension rod to be collected and measured.
7. The wide temperature range in-plant pedestal thermal vibration coupling test system of claim 6, wherein: the acceleration sensor and the dynamic force sensor are both piezoelectric sensors with titanium alloy coated on the surfaces.
8. The wide temperature range in-plant pedestal thermal vibration coupling test system of claim 6, wherein: the excitation rod and the ceramic extension rod are both formed by rigid high-temperature hollow ceramic materials capable of resisting 1600 ℃; the optical axis and the fixed shaft support are both formed by 304 stainless steel.
9. The wide temperature range in-plant pedestal thermal vibration coupling test system of claim 6, wherein: the diameter of the ceramic extension rod is 8-10 mm; the test platform is a T-shaped groove cast iron platform; when the test is carried out, a temperature sensor (1) is arranged at the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984746.9U CN210037127U (en) | 2019-06-27 | 2019-06-27 | Thermal vibration coupling test system for equipment base in wide temperature range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920984746.9U CN210037127U (en) | 2019-06-27 | 2019-06-27 | Thermal vibration coupling test system for equipment base in wide temperature range |
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| CN210037127U true CN210037127U (en) | 2020-02-07 |
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| CN201920984746.9U Active CN210037127U (en) | 2019-06-27 | 2019-06-27 | Thermal vibration coupling test system for equipment base in wide temperature range |
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| Country | Link |
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| CN (1) | CN210037127U (en) |
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