CN214098430U - Cylindrical shell thermal vibration test platform - Google Patents
Cylindrical shell thermal vibration test platform Download PDFInfo
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- CN214098430U CN214098430U CN202120177739.5U CN202120177739U CN214098430U CN 214098430 U CN214098430 U CN 214098430U CN 202120177739 U CN202120177739 U CN 202120177739U CN 214098430 U CN214098430 U CN 214098430U
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- cylindrical shell
- lamp
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- vibration test
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010453 quartz Substances 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
本发明涉及一种圆柱壳热振试验平台，包括钢架、燃烧组件、灯阵组件、法兰座，钢架包括平板、两个竖侧板，平板下侧面左右两端与竖侧板上端相连接，平板及侧板中部均开设有通孔，所述圆柱壳内端经法兰座安装在钢架上的其中一个通孔处，圆柱壳与其安装位置的通孔同轴心，燃烧组件包括燃烧器、锥形套筒，灯阵组件包括灯座、灯架、支座、隔热套、激振器、功率放大器，本平台可进行高温环境下试件的动力学参数的测量，通用性强，可用燃烧器进行动态加热试验，也可用石英灯阵进行静态加热试验，同时还可以横向或纵向的多方向进行测量。
The invention relates to a thermal vibration test platform of a cylindrical shell, which comprises a steel frame, a combustion assembly, a lamp array assembly and a flange seat. The steel frame includes a flat plate and two vertical side plates. Connection, the middle of the flat plate and the side plate are provided with through holes, the inner end of the cylindrical shell is installed at one of the through holes on the steel frame through the flange seat, the cylindrical shell is coaxial with the through hole of the installation position, and the combustion assembly includes Burner, conical sleeve, lamp array components include lamp holder, lamp holder, support, heat insulation sleeve, vibration exciter, power amplifier, this platform can measure the dynamic parameters of specimens in high temperature environment, universal It can be used for dynamic heating test with burner, or static heating test with quartz lamp array, and can also be measured in multiple directions horizontally or vertically.
Description
Technical Field
The invention relates to a cylindrical shell thermal vibration test platform.
Background
The high-temperature-resistant cylindrical shell thermal vibration test relates to the application of aerospace aircraft structures and the like, and the thermal vibration problem of the cylindrical shell thermal vibration test is researched by theoretical analysis and numerical calculation at home and abroad at present. The high temperature and temperature gradient in the high temperature resistant cylindrical shell can have a significant influence on the vibration characteristics of the cylindrical shell. The test of high temperature resistant cylinder shell needs under high temperature environment, and the test piece can be difficult to measure in high temperature, and ordinary sensor is difficult to measure at high temperature environment more than 300 ℃, if use sensors such as laser vibration detector can lead to the cost too high. Conventional test platforms typically only perform one-directional testing and measurement, or only perform one heating mode of measurement.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a cylindrical shell thermal vibration test platform.
The invention solves the technical problem by adopting the scheme that a cylindrical shell thermal vibration test platform comprises a steel frame, a combustion assembly, a lamp array assembly and a flange seat;
the steel frame comprises a flat plate and two vertical side plates, the left end and the right end of the lower side surface of the flat plate are connected with the upper ends of the vertical side plates, through holes are formed in the middle parts of the flat plate and the side plates, the inner end of the cylindrical shell is installed at one through hole on the steel frame through a flange seat, and the cylindrical shell and the through hole at the installation position of the cylindrical shell are coaxial;
the combustion assembly comprises a combustor and a conical sleeve, the small end of the conical sleeve is connected with the output end of the combustor, the periphery of the large end of the conical sleeve is provided with a flange part for connecting a flat plate or a vertical side plate, and the inner diameter of the large end of the conical sleeve is not larger than the diameter of the through hole;
the lamp array component comprises a lamp holder, a lamp bracket, a support, a heat insulation sleeve, a vibration exciter and a power amplifier, wherein the heat insulation sleeve is sleeved outside the cylindrical shell, a gap is formed between the heat insulation sleeve and the cylindrical shell, when the cylindrical shell is arranged on the vertical side plate, the heat insulation sleeve is erected on the support, when the cylindrical shell is installed on a flat plate, the heat insulation sleeve is erected on the flange seat, a plurality of quartz lamps are installed on the lamp seat in a circumferentially and uniformly distributed mode, the cylindrical shell is penetrated through by the lamp seat, a gap exists between the lamp seat and the cylindrical shell, lamp brackets are installed at two ends of the lamp seat, a ceramic heat insulation piece is installed at the top of the outer end of the cylindrical shell, a displacement sensor is installed on the ceramic heat insulation piece, a vibration exciter is installed on the periphery of the outer end of the cylindrical shell, the moving end of the vibration exciter is connected with the cylindrical shell through a force sensor, the vibration exciter is electrically connected with a power amplifier, and the quartz lamps, the power amplifier, the displacement sensor and the force sensor are all electrically connected with a computer.
Further, the displacement sensor is an eddy current displacement sensor.
Furthermore, 14 quartz lamp tubes arranged along the axial direction of the lamp holder are uniformly arranged on the circumference of the outer side surface of the lamp holder, and the lamp holder and the cylindrical shell have the same axle center.
Furthermore, an annular groove for accommodating the end part of the cylindrical shell is formed in the flange seat, a radial screw hole communicated with the annular groove is formed in the periphery of the flange seat, and a locking nail for locking the cylindrical shell is installed in the radial screw hole.
Furthermore, a horizontal connecting seat is installed on the outer side face of the lower end of the vertical side plate, and a longitudinal installing strip hole is formed in the horizontal connecting seat.
Furthermore, a plurality of grooves are formed in the lower side surface of the vertical side plate at intervals along the longitudinal direction.
Furthermore, the heat insulation sleeve is composed of two heat insulation sleeve base bodies, and the end parts of the two heat insulation sleeve base bodies are connected through connecting buckles.
Compared with the prior art, the invention has the following beneficial effects: the dynamic heating test device has the advantages of simple structure, reasonable design, capability of measuring the dynamic parameters of the test piece in a high-temperature environment, strong universality, capability of carrying out a dynamic heating test by using a burner, capability of carrying out a static heating test by using a quartz lamp array, and capability of measuring in a transverse or longitudinal multi-direction.
Drawings
The invention is further described with reference to the following figures.
FIG. 1 is a schematic structural diagram of the platform during a quartz lamp thermal vibration test;
FIG. 2 is a schematic view of a quartz lamp mounted vertically;
FIG. 3 is a schematic structural diagram of a transverse combustion heating thermal vibration test performed by the platform;
FIG. 4 is a schematic structural diagram of a vertical combustion heating thermal vibration test performed by the platform.
In the figure: 1-steel frame; 101-a flat plate; 102-vertical side plates; 103-a through hole; 104-horizontal connecting base; 105-longitudinal mounting bar holes; 106-grooves; 2-a flange seat; 3-a heat insulation sleeve; 4-a displacement sensor; 5-ceramic insulation; 6-cylindrical shell; 7-a lamp holder; 8-a lamp holder; 9-connecting buckles; 10-a support; 11-a force sensor; 12-a vibration exciter; 13-a power amplifier; 14-a computer; 15-a burner; 16-tapered sleeve. 104, the horizontal connecting base is provided with 105.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1-4, a cylindrical shell thermal vibration test platform comprises a steel frame 1, a combustion assembly, a lamp array assembly and a flange seat 2, wherein the steel frame is made of a high-temperature-resistant metal material;
the steel frame comprises a flat plate 101 and two vertical side plates 102, the left end and the right end of the lower side surface of the flat plate are connected with the upper ends of the vertical side plates, through holes 103 are formed in the middle parts of the flat plate and the side plates, the inner end of the cylindrical shell is installed at one through hole on the steel frame through a flange seat, and the cylindrical shell 6 and the through hole at the installation position are coaxial;
the combustion assembly comprises a combustor 15 and a conical sleeve 16, wherein the small end of the conical sleeve is connected with the output end of the combustor, the periphery of the large end of the conical sleeve is provided with a flange part for connecting a flat plate or a vertical side plate, the inner diameter of the large end of the conical sleeve is not larger than the diameter of a through hole, the conical sleeve is used for preventing the flame of the combustor from contacting with air, a conical key is used for directly introducing the flame into a cylindrical shell, so that the cylindrical shell can be fully combusted, the length of the flame is long, the cylindrical shell can be easily damaged by directly spraying the flame, and the problem can be solved by using the conical sleeve;
the lamp array component comprises a lamp holder 7, a lamp holder 8, a support 10, a heat insulating sleeve 3, a vibration exciter 12 and a power amplifier 13, wherein the heat insulating sleeve is sleeved outside a cylindrical shell, the heat insulating sleeve is mainly used for insulating heat generated by a quartz lamp array and blocking high temperature so as to avoid injury, the temperature can be basically kept constant at a certain stable value by heat insulation, heat radiation is not easy, and the temperature can be heated to a required temperature more easily, a gap is formed between the heat insulating sleeve and the cylindrical shell, so that the influence of resonance with the cylindrical shell during test on test measurement is avoided, when the cylindrical shell is arranged on a vertical side plate, the heat insulating sleeve is erected on the support, when the cylindrical shell is arranged on a flat plate, the heat insulating sleeve is erected on a flange seat, a plurality of quartz lamps are uniformly distributed on the circumference of the lamp holder, the lamp holder penetrates through the cylindrical shell, a gap is formed between the lamp holder and the cylindrical shell, the lamp holders are arranged at two ends of the lamp holder, the ceramic heat insulating member 5 is arranged at the top of the outer end of the cylindrical shell, displacement sensor 4 is installed on the ceramic heat insulation piece, the ceramic heat insulation piece is in threaded connection with the cylindrical shell, the ceramic heat insulation piece can transmit vibration accurately and simultaneously insulate heat, the vibration exciter is installed on the periphery of the outer end of the cylindrical shell, the acting end of the vibration exciter is connected with the cylindrical shell through force sensor 11, the force sensor is mainly used for measuring restoring force generated when the cylindrical shell is subjected to bending deformation, the vibration exciter is electrically connected with the power amplifier, the quartz lamp, the power amplifier, the displacement sensor and the force sensor are all electrically connected with computer 14, the temperature of the quartz lamp is adjustable and controllable, the heating temperature can be up to more than 1000 ℃, static heating can be performed on the cylindrical shell, a certain gap is kept between the quartz lamp and the cylindrical shell, and resonance cannot be caused, so that influence on measurement is generated.
In this embodiment, the displacement sensor is an eddy current displacement sensor.
In this embodiment, 14 quartz lamp tubes arranged along the axial direction of the lamp holder are uniformly arranged on the circumference of the outer side surface of the lamp holder, and the lamp holder and the cylindrical shell have the same axle center.
In this embodiment, the flange seat is provided with a ring groove for accommodating an end portion of the cylindrical shell, the flange seat is provided with a radial screw hole on the outer periphery thereof, the radial screw hole is communicated with the ring groove, and a locking nail for locking the cylindrical shell is installed in the radial screw hole.
In this embodiment, the outer side surface of the lower end of the vertical side plate is provided with a horizontal connecting seat 104, and the horizontal connecting seat is provided with a longitudinal mounting bar hole 105.
In this embodiment, the lower side of the vertical side plate is provided with a plurality of grooves 106 at intervals along the longitudinal direction, the grooves can be fixed with the protrusions or the bolts of the foundation, and the grooves are designed into a U shape to have higher stability.
In this embodiment, the sleeve is formed by two sleeve bases, the ends of which are connected by a connecting buckle 9.
When in use:
combustion heating thermal vibration test: installing a steel frame on a foundation, installing a cylindrical shell on the outer side surface of a through hole on the steel frame through a flange seat according to requirements, installing a burner in the steel frame, connecting the large end of a conical sleeve with the inner side surface of the through hole on which the cylindrical shell is installed on the steel frame, connecting the small end of the conical sleeve with the output end of the burner, and starting the burner to heat the cylindrical shell;
and (3) quartz lamp thermal vibration test: the method comprises the steps of installing a steel frame on a foundation, installing a cylindrical shell on the outer side surface of a through hole in the steel frame through a flange base according to needs, sleeving a heat insulation sleeve on the outer side of the cylindrical shell, installing a lamp holder provided with a quartz lamp in the cylindrical shell, supporting a lamp holder installed on the foundation at two ends of the lamp holder, installing a ceramic heat insulation piece at the outer end of the cylindrical shell, installing a vibration exciter on the ceramic heat insulation piece, installing a vibration exciter on the periphery of the outer end of the cylindrical shell, connecting the acting end of the vibration exciter with the cylindrical shell through a force sensor, electrically connecting the vibration exciter with a power amplifier, electrically connecting the quartz lamp, the power amplifier and the displacement sensor with a computer, and starting the quartz lamp and the vibration exciter through the computer for testing.
If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using a bolt or screw connection) can also be understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120177739.5U CN214098430U (en) | 2021-01-22 | 2021-01-22 | Cylindrical shell thermal vibration test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120177739.5U CN214098430U (en) | 2021-01-22 | 2021-01-22 | Cylindrical shell thermal vibration test platform |
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| Publication Number | Publication Date |
|---|---|
| CN214098430U true CN214098430U (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120177739.5U Expired - Fee Related CN214098430U (en) | 2021-01-22 | 2021-01-22 | Cylindrical shell thermal vibration test platform |
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| CN (1) | CN214098430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112541281A (en) * | 2021-01-22 | 2021-03-23 | 福州大学 | Cylindrical shell thermal vibration test platform and use method thereof |
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2021
- 2021-01-22 CN CN202120177739.5U patent/CN214098430U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112541281A (en) * | 2021-01-22 | 2021-03-23 | 福州大学 | Cylindrical shell thermal vibration test platform and use method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210831 Termination date: 20220122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |