CN107941444B - High overload resistant medium-and-large-sized water-cooling vibration test system - Google Patents
High overload resistant medium-and-large-sized water-cooling vibration test system Download PDFInfo
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- CN107941444B CN107941444B CN201810020869.0A CN201810020869A CN107941444B CN 107941444 B CN107941444 B CN 107941444B CN 201810020869 A CN201810020869 A CN 201810020869A CN 107941444 B CN107941444 B CN 107941444B
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- 238000012360 testing method Methods 0.000 title claims abstract description 73
- 238000001816 cooling Methods 0.000 title claims abstract description 50
- 238000002955 isolation Methods 0.000 claims abstract description 46
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 23
- 230000003068 static effect Effects 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 103
- 230000005484 gravity Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012356 Product development Methods 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
Abstract
The invention relates to a high overload resistance medium and large water-cooling vibration test system which comprises a vibration table body, a power amplifier, a control cabinet, a cooling and oil supply device, a power amplifier remote control device, a centering remote control device, a computer host, a horizontal anti-overturning device, a table body oil gas vibration isolation device, a static pressure supporting device, an oil return device and a vibration table support. The vibration isolation device is characterized in that an oil-gas mixing spring device is adopted for vibration isolation, a horizontal bearing structure is supported by a full-sealed hydrostatic bearing to improve the anti-overturning capacity of a movable coil table surface of the vibrating table, hydrostatic bearing oil return is realized under a high overload condition through an oil return pump, and the installation position of a water-cooled refrigerator of a medium-large water-cooled vibrating table system used on a centrifugal machine is determined. The high overload resistant medium-and-large-sized water-cooling vibration test system solves the problem that the conventional centrifugal vibration test equipment can only perform vibration overload test on a small test piece, and greatly improves the comprehensive test capability of centrifugal vibration.
Description
Technical Field
The invention relates to a high overload resistant medium-and-large-sized water-cooling vibration test system, which is suitable for a centrifugal environment and belongs to the field of product development in a vibration and overload composite environment.
Background
The mechanical environment test equipment is mainly used for simulating the actual use environment of various products such as aerospace, aviation, ships, automobiles, high-speed rails and the like. The vibrating table is mainly used for simulating the vibrating environment of various products, and the centrifugal machine is mainly used for simulating the overload environment of various products.
For aviation and aerospace equipment, the system is widely operated in a composite dynamic environment. Most aerospace devices, such as rockets, satellites, fighters, etc., operate in a composite environment where vibration and high overload are both active when launched or recovered. In the past, the limitation of test equipment generally separately examines the reliability of test piece with two kinds of environment, promptly according to its service condition, carries out vibration test and centrifugal overload test alone, and this kind of condition is difficult to know the influence of the real environmental condition of product on test piece reliability on the one hand, on the other hand, also greatly reduced product development's efficiency. In order to fully expose the influence of the real use environment on the reliability of the products through a test method, the reliability test of the products must be carried out by adopting mechanical environment test equipment compounded by vibration and overload so as to simulate the comprehensive environment of the aerospace equipment more truly. Therefore, the method has important significance in researching the vibration and overload composite environment test equipment, can more accurately predict potential faults which cannot be exposed in a single vibration or overload environment test, and is beneficial to improving the use reliability of aviation and aerospace equipment.
At present, the key technology of an electric vibrating table with the thrust of the centrifugal vibrating table not exceeding 5.5 tons installed on a centrifugal machine is broken through, test equipment for centrifugal vibration is successfully developed, the cooling modes of the test equipment are all air-cooled, and the requirements of a medium-sized and large-sized test piece on the centrifugal vibration test cannot be met.
The existing air-cooled low-thrust electric vibration table arranged on the centrifugal machine is air-cooled and guided by a linear bearing; the vibration generated by the centrifugal machine is small, and vibration isolation is avoided between the vibrating table and the centrifugal machine; the test piece has smaller mass and size, and the test piece adopts direct hanging type. The air-cooled low-thrust electric vibrating table enables the installation and design of the medium-large vibrating table on the centrifugal machine to have new difficulties and key technologies needing breakthrough, for example, under the condition of high overload, the return oil of the moving coil guiding hydrostatic bearing is at zero pressure, and on the rotating centrifugal machine, the oil liquid is subjected to the action of a large centrifugal force, namely the centrifugal force in the direction away from the center of the rotating shaft (return oil slip ring), and the normal return oil cannot be realized; the mass of the medium-and-large-sized vibrating table body is generally more than 5 tons, the centrifugal force of the table body is as high as hundreds of tons under the high overload condition of large centrifugal acceleration, the vibration of the table body is isolated from a centrifugal machine, the vibration reduction device needs to realize small rigidity and large bearing at the same time, and the common air springs and mechanical springs can not meet the requirements at all; the anti-overturning capability of the table top is an important index for carrying out a vibration test of a large test piece, and the problems that oil is thrown out, oil cannot return and the like possibly occur in a horizontal sliding table structure on the ground under the action of centrifugal force. Therefore, solutions are necessary to be provided for various key technologies of installing a medium-large vibration table on a centrifuge so as to meet the test requirements of the centrifugal and vibration comprehensive environment of a large test piece.
Disclosure of Invention
First, the technical problem to be solved
Aiming at the defects in the prior art, the invention provides a high overload resistant medium and large water-cooling vibration test system, which adopts an oil-gas mixed spring device to realize vibration isolation, adopts a full-sealed hydrostatic bearing to support a horizontal bearing structure so as to improve the anti-overturning capacity of a movable coil table surface of a vibrating table, realizes oil return of a pressure reducing bearing under a high overload condition through an oil return pump, and determines the installation position of a water-cooling refrigerator of the medium and large water-cooling vibrating table system used on a centrifugal machine. The high overload resistant medium-and-large-sized water-cooling vibration test system solves the problem that the conventional centrifugal vibration test equipment can only perform vibration overload test on a small test piece, and greatly improves the comprehensive test capability of centrifugal vibration.
(II) technical scheme
The invention relates to a high overload resistance medium and large water-cooling vibration test system which comprises an electric vibration table body, a vibration table support, a table body oil-gas vibration isolation device, a horizontal anti-overturning device, a static pressure supporting device, an oil return pump, a power amplifier, a vibration controller, a cooling and oil supply device and a remote control device.
The vibration table body and the centrifugal machine are connected through the vibration table support, and the table body oil gas vibration isolation device is used for vibration isolation, so that large bearing is realized through high-pressure oil under the condition of high overload, and low rigidity is realized through pre-inflation. The platform body oil-gas vibration isolation device comprises four sets of vibration isolation hydraulic cylinders, a mounting seat, a pin shaft, an energy accumulator, a set of platform body position detection device, an energy accumulator mounting bracket, a position control and oil distribution device. The four vibration isolation hydraulic cylinders are connected in parallel through oil ways, oil is supplied from the slip ring end through the position control and oil distribution device, each vibration isolation hydraulic cylinder is connected with the vibration table body through a screw, the vibration isolation hydraulic cylinders are connected with the vibration table support through a group of mounting seats and pin shafts, the vibration table support is connected with the centrifugal machine through a connecting screw, the front end of the vibration table support is propped against the vibration table bearing structure at the front end of the centrifugal machine arm, centrifugal force born by the vibration table is transferred to the vibration table support through the vibration isolation hydraulic cylinders, the pin shafts and the mounting seats, deformation of the vibration table support is limited through the vibration table bearing structure of the centrifugal machine arm, each vibration isolation hydraulic cylinder is connected with the energy accumulator respectively, and whether the energy accumulator corresponds to the vibration isolation hydraulic cylinders one by one can be determined according to the capacity of the energy accumulator or a one-to-many-one mode is adopted. The oil-gas vibration isolation device of the table body can effectively reduce the influence of vibration on the centrifugal machine, and when the centrifugal machine is designed and vibration isolation is considered, the vibration table can be directly connected with the centrifugal machine arm without vibration isolation.
During operation, the position detection device of the table body is used for adjusting the position of the vibration isolation hydraulic cylinder according to the position of the table body of the vibration table through the position control and oil distribution device, so that the table body of the vibration table is ensured not to be in direct contact with the support of the vibration table, and the scheme not only can realize vibration isolation between the vibration table and the centrifugal machine, but also ensures the connection strength.
The horizontal anti-overturning device comprises a horizontal support, a gravity center shifting clamp and a full-sealed T-shaped hydrostatic bearing, wherein the composition form of the horizontal anti-overturning device is different from that of a common structure, a common horizontal sliding table used on the ground mainly comprises an adapter, a sliding plate, a clamp, a support, a bearing, an open type oil tank and the like, the adapter, a moving coil and the sliding plate are connected through screws respectively, and under the action of centrifugal force, the open type oil tank is easy to generate an oil throwing phenomenon, so that the situation that the horizontal sliding table cannot work is easily caused. In the scheme, the full-sealed T-shaped hydrostatic bearing is adopted for bearing, each bearing is sealed independently, the bottom of the bearing is connected with the horizontal support through a screw, and the working oil throwing condition is avoided. Meanwhile, under the action of high centrifugal acceleration, a test piece arranged on the table top of the horizontal sliding table is subjected to the action of centrifugal force, and when the gravity center and the thrust of the test piece are not on the same plane, a very large overturning moment is generated, so that the pressure of the fully-sealed T-shaped hydrostatic bearing is too large to be easily damaged. In the invention, the three parts of the adapter, the sliding plate and the clamp are designed as the gravity center offset clamp, the structural design can not only reduce connection, but also can adjust the gravity center position of the test piece through the structural design, so that the gravity center of the moving part coincides with the center of the moving coil as much as possible, namely, the overturning moment is reduced to the greatest extent by adjusting the position relation between the gravity center of the test piece and the thrust.
In order to improve the anti-overturning capability of a vibrating table, a linear hydrostatic bearing is generally adopted for guiding a moving coil, and the water-cooling vibrating table adopts a hydrostatic support device guided by the linear hydrostatic bearing. According to the scheme, the oil return tank is designed, the installation position of the oil return tank is used for ensuring that hydraulic oil subjected to pressure relief through the bearing naturally flows into the oil return tank, an oil return pump is installed at the position, close to the vibrating table, of the arm end, and the oil return pump is used for sucking the hydraulic oil, establishing pressure and sending the pressure back to the center of the rotating arm, and returning the pressure back to the oil tank of the cooling and oil supply device through the oil slip ring.
In addition, for the middle and large-sized water-cooling vibrating table system used on the centrifugal machine, a matched water-cooling cabinet is needed, the water-cooling cabinet is generally directly connected with a water inlet pipe and a water outlet pipe of a movable ring of the vibrating table, in the scheme, the water-cooling cabinet and an oil source are placed on the ground instead of the centrifugal machine, water supply of cooling water of the vibrating table is from a ground cooling and oil supply device placed outside the centrifugal machine to the vibrating table through a water supply slip ring, the movable ring and the movable ring of the vibrating table are cooled, and then the movable ring and the movable ring of the vibrating table are returned to a water tank of the cooling and oil supply device through a water return slip ring. The vibration table supplies oil from a ground cooling and oil supply device arranged outside the centrifugal machine chamber to a linear hydrostatic bearing, a full-sealed hydrostatic bearing and a vibration isolation hydraulic cylinder of a vibration test system on the centrifugal machine through an oil supply slip ring, return oil returns to an oil tank of the cooling and oil supply device through an oil return slip ring, and pressure and flow protection of an oil source and a water cooling cabinet are connected with a power amplifier through a signal slip ring, so that safety monitoring is realized in a remote power amplifier.
(III) beneficial effects
Compared with the prior art, the invention has the following beneficial effects:
1. adopt the water-cooling mode, cooling efficiency is high, can realize bigger thrust, and places shaking table water-cooling and oil supply device on ground, realizes the water supply and the return water of cooling water, realizes the fuel feeding and the return oil of hydraulic oil through the oil slide ring through the water slide ring, places water-cooling and oil supply device on centrifuge relatively, greatly reduced its designing requirement, make system's work safe and reliable more.
2. The structural form of the height-variable adapter is adopted to adjust the position relation between the gravity center and the thrust of the test piece, so that the actual overturning moment of the test is reduced to the greatest extent;
3. the adopted platform vibration isolation device can meet the large bearing requirement under the condition of high centrifugal acceleration, has good vibration reduction effect, can reduce the influence of vibration of the vibration platform on the centrifugal machine during working, and has simple and reliable connection mode.
4. The test piece is installed by adopting the horizontal supporting table board, and the oil slinging problem is solved by adopting the full-sealed bearing by adopting the horizontal bearing structure, so that the test requirement of large eccentric moment generated by a large test piece can be met, and the test piece is safe, reliable and practical.
5. The hydraulic oil with no pressure at the bearing outlet is sucked into the pump by adopting the oil return pump, and the hydraulic oil is output to enable the hydraulic oil to smoothly return to the center of the rotating arm, so that the problem of incapability of oil return is solved.
Drawings
FIG. 1 is a schematic diagram showing the installation and arrangement of a middle-large water-cooling vibration test system with high overload resistance on a centrifugal machine along an arm.
FIG. 2 is a perspective view of a high overload resistant medium and large water-cooled vibration test system of the present invention.
In the figure, a 1-vibration test system, a vibration table body, a 1.2-power amplifier, a 1.3-control cabinet, a 1.3.1-vibration controller, a 1.3.2-centering device, a 1.4-cooling and oil supply device, a 1.5-power amplifier remote control device, a 1.6-centering remote control device, a 1.7-computer host, a 1.8-horizontal anti-overturning device, a horizontal bracket, a full-sealed hydrostatic bearing, a gravity center shifting clamp, a 1.9-table body oil-gas vibration isolation device, a vibration isolation hydraulic cylinder, a mounting seat, a pin roll, a 1.9.4-energy accumulator, a 1.9.5-table body position detection device, a 1.9.6-energy accumulator mounting bracket, a 1.9.7-position control and oil distribution device, a 1.10-hydrostatic support device, a 1.11-oil return device, a 1.11.1-oil return tank, a 1.11.2-oil return pump, a 1.12-vibration table bracket, a 2-centrifuge, a 2.1-centrifugal machine arm, a 2.1.1-1-vibration table bearing structure, a 2.2-2-horizontal anti-overturning device, a 2.2-centrifugal machine, a 2.2-2-horizontal anti-overturning device, a 2.3-slip ring, a rotating and a test piece, and a rotating and a test piece.
Detailed Description
The invention relates to a high overload resistant medium-and large-sized water-cooling vibration test system,
as shown in FIG. 1, the high overload resistance medium and large water-cooling vibration test system 1 comprises a vibration table body, a power amplifier 1.2, a control cabinet 1.3, a cooling and oil supply device 1.4, a power amplifier remote control device 1.5, a centering remote control device 1.6, a computer host 1.7, a horizontal anti-overturning device 1.8, a table body oil gas vibration isolation device 1.9, a static pressure supporting device 1.10, an oil return device 1.11 and a vibration table bracket 1.12; wherein, the control cabinet 1.3 is composed of a vibration controller 1.3.1 and a centering device 1.3.2; the horizontal anti-overturning device 1.8 consists of a horizontal bracket, a full-sealed hydrostatic bearing and a gravity center offset clamp; the platform body oil gas vibration isolation device 1.9 consists of a vibration isolation hydraulic cylinder, a mounting seat, a pin shaft, an energy accumulator 1.9.4, a platform body position detection device 1.9.5, an energy accumulator mounting bracket 1.9.6, a position control and oil distribution device 1.9.7; the oil return device 1.11 consists of an oil return tank 1.11.1 and an oil return pump 1.11.2.
The vibration test system is arranged in two spaces, namely a centrifugal machine chamber and a centrifugal machine chamber, and in the centrifugal machine chamber, the vibration test system 1 is arranged at the far end of the centrifugal machine arm 2.1 through a vibration table bracket 1.12 and is connected through a screw; the outer end of the centrifugal horn 2.1 is provided with a vibrating table bearing structure 2.1.1 and a horizontal anti-overturning device bearing structure 2.1.2, and the vibrating table bearing structure 2.1.1 bears the centrifugal force of a vibrating table body, a vibrating table support 1.12 and a table body oil-gas vibration isolation device 1.9; the horizontal anti-capsizing device bearing structure 2.1.2 is subjected to the centrifugal force of the horizontal anti-capsizing device 1.8.
The vibration table body adopts a water-cooling electric vibration table, a table body oil gas vibration isolation device 1.9 is arranged between the vibration table body and a vibration table bracket 1.12, an energy accumulator mounting bracket 1.9.6 is arranged on a centrifuge arm 2.1, and a position control and oil distribution device 1.9.7 is arranged at the center of the centrifuge; the horizontal anti-overturning device 1.8 is arranged on the outer side of the table surface of the vibrating table body, the power amplifier 1.2 and the control cabinet 1.3 are symmetrically arranged close to the rotation center 2.3 of the centrifugal machine, and the vibration controller 1.3.1 and the centering device 1.3.2 are arranged in the control cabinet 1.3. The power amplifier remote control device 1.5, the centering remote control device 1.6, the computer host 1.7 and the cooling and oil supply device 1.4 are arranged outside the centrifugal machine.
The gravity center offset distance of the gravity center offset clamp is determined according to the experimental practical parameters, so that the gravity center of the gravity center offset clamp coincides with the gravity center of the movable coil table top of the vibrating table.
The slip ring system 2.2 consists of a water slip ring, an oil slip ring, an electric slip ring, a signal slip ring and an optical fiber slip ring, provides power, hydraulic oil and cooling water for the centrifuge chamber, and realizes communication between the centrifuge chamber and the outside of the centrifuge chamber. The electric slip ring supplies power for the power amplifier 1.2, the vibration controller 1.3.1, the centering device 1.3.2 and the oil return pump 1.11.2 in the centrifugal machine chamber. The signal slip ring realizes the communication between the power amplifier remote control device 1.5 and the centering remote control device 1.6 outside the centrifuge chamber, the power amplifier 1.2 and the centering device 1.3.2 inside the centrifuge chamber. The optical fiber slip ring realizes the communication between the computer host 1.7 outside the centrifuge chamber and the vibration controller 1.3.1 inside the centrifuge chamber. The water slip ring and the oil slip ring realize water supply backwater and oil supply return between the centrifuge outdoor cooling and oil supply device 1.4 and a vibrating table arranged in the centrifuge room, the cooling water in the cooling and oil supply device 1.4 is conveyed to the dynamic and static rings of the vibrating table body, and the hydraulic oil is respectively conveyed to the full-sealed hydrostatic bearing, the hydrostatic support device 1.10 and the vibration isolation hydraulic cylinder after the pressure is regulated by the position control and oil distribution device 1.9.7. Each set of vibration isolation hydraulic cylinder is in oil way communication with the energy accumulator 1.9.4 respectively, whether the vibration isolation hydraulic cylinders are in one-to-one correspondence is determined according to the capacity of the energy accumulator 1.9.4, and specifically, a one-to-many and many-to-one mode can be adopted. The full-sealed hydrostatic bearing is T-shaped, and the number and the installation positions of the full-sealed hydrostatic bearing can be flexibly assembled according to actual conditions.
Before working, a test piece 4 is installed on a gravity center offset clamp, working pressure of a vibration isolation hydraulic cylinder under the centrifugal acceleration condition is calculated according to test parameters, an air chamber of an energy accumulator 1.9.4 is pre-inflated, then a power amplifier 1.2, a vibration controller 1.3.1 and a centering device 1.3.2 which are installed in a centrifugal machine chamber are powered on, and meanwhile, a related power supply and oil supply system outside the centrifugal machine chamber are powered on, so that a cooling and oil supply device 1.4 and an oil return pump 1.11.2 start to work, cooling water circulation is carried out, and oil supply and oil return are carried out by a static pressure supporting device 1.10 and a full-sealed hydrostatic bearing, so that a normal working state is achieved. The working is started, the test parameters are set through the computer host 1.7, the gain is controlled through the power amplifier remote control device 1.5, then the centrifugal machine 2 is started, the moving coil position is controlled through the central remote control device 1.6 and the position control and oil distribution device 1.9.7 in the running process of the centrifugal machine 2, and meanwhile, the position of the vibration table body is regulated through regulating the oil inlet and outlet of the vibration isolation hydraulic cylinder so as to enable the vibration table body to float. In the working process, the closed loop control circuit of the vibration controller 1.3.1, the power amplifier 1.2, the acceleration sensor 3 and the vibration controller 1.3.1 is carried out in a centrifugal machine room, and the cooling and oil supply device 1.4 is arranged outside the centrifugal machine room.
Claims (8)
1. The medium-and-large-sized water-cooling vibration test system for resisting high overload is characterized by comprising a vibration table body, a power amplifier, a control cabinet, a cooling and oil supply device, a power amplifier remote control device, a centering remote control device, a computer host, a horizontal anti-overturning device, a table body oil-gas vibration isolation device, a static pressure supporting device, an oil return device and a vibration table bracket; the control cabinet consists of a vibration controller and a centering device; the horizontal anti-overturning device consists of a horizontal bracket, a full-sealed hydrostatic bearing and a gravity center shifting clamp; the platform body oil-gas vibration isolation device consists of a vibration isolation hydraulic cylinder, a mounting seat, a pin shaft, an energy accumulator, a platform body position detection device, an energy accumulator mounting bracket, a position control and oil distribution device; the oil return device consists of an oil return tank and an oil return pump;
the vibration test system is arranged in two spaces, namely a centrifugal machine chamber and a centrifugal machine chamber, and is arranged at the far end of the centrifugal machine arm through a vibrating table bracket in the centrifugal machine chamber and connected through a screw; the outer end of the centrifugal machine arm is provided with a vibrating table bearing structure and a horizontal anti-overturning device bearing structure, and the vibrating table bearing structure bears the centrifugal force of a vibrating table body, a vibrating table support and a table body oil-gas vibration isolation device; the horizontal anti-overturning device bearing structure bears the centrifugal force of the horizontal anti-overturning device;
the adapter, the sliding plate and the clamp are designed into a gravity center shifting clamp; the structural form of the height-variable adapter is adopted to adjust the position relation between the gravity center and the thrust of the test piece, so that the actual overturning moment of the test is reduced to the greatest extent.
2. The high overload resistant medium and large water-cooling vibration test system as claimed in claim 1, wherein the vibration table adopts a water-cooling electric vibration table, a table body oil-gas vibration isolation device is arranged between the vibration table body and the vibration table support, an accumulator mounting support is arranged on a centrifuge arm, and a position control and oil distribution device is arranged at the center of the centrifuge; the horizontal anti-overturning device is arranged on the outer side of the table surface of the vibrating table body, the power amplifier and the control cabinet are symmetrically arranged at the position close to the rotation center of the centrifugal machine, and the vibration controller and the centering device are arranged in the control cabinet; and a power amplifier remote control device, a centering remote control device, a computer host and a cooling and oil supply device are arranged outside the centrifugal machine.
3. The high overload-resistant medium and large water-cooled vibration test system according to claim 2, wherein the slip ring system comprises a water slip ring, an oil slip ring, an electric slip ring, a signal slip ring and an optical fiber slip ring, and is used for providing power, hydraulic oil and cooling water for the centrifuge chamber and realizing communication between the centrifuge chamber and the outside of the centrifuge chamber; the electric slip ring supplies power for the power amplifier, the vibration controller, the centering device and the oil return pump in the centrifugal machine chamber; the signal slip ring realizes the communication between the power amplifier remote control device outside the centrifuge chamber and the centering remote control device and the power amplifier and centering device inside the centrifuge chamber; the optical fiber slip ring realizes the communication between the computer host outside the centrifuge chamber and the vibration controller inside the centrifuge chamber; the water slip ring and the oil slip ring realize water supply return and oil supply return between the outdoor cooling and oil supply device of the centrifugal machine and the vibrating table arranged in the centrifugal machine chamber, cooling water in the cooling and oil supply device is conveyed to the dynamic and static rings of the vibrating table body, and hydraulic oil is respectively conveyed to the full-sealed hydrostatic bearing, the hydrostatic support device and the vibration isolation hydraulic cylinder after pressure is regulated by the position control and oil distribution device.
4. A high overload resistant medium and large water cooling vibration test system as claimed in claim 3 wherein each set of vibration isolation hydraulic cylinders is in oil circuit communication with the accumulator respectively, and whether the vibration isolation hydraulic cylinders are in one-to-one correspondence is determined according to the capacity of the accumulator.
5. The high overload resistant medium and large water-cooled vibration test system according to claim 4, wherein the accumulator and the vibration isolation hydraulic cylinder are in a one-to-two or two-to-one correspondence mode.
6. A high overload resistant medium and large water cooled vibration testing system as recited in claim 3 wherein said fully sealed hydrostatic bearing is T-shaped.
7. The method for using the high overload-resistant medium and large water-cooling vibration test system is characterized in that a test piece is installed on a gravity center shifting clamp before operation, working pressure of a vibration isolation hydraulic cylinder under the centrifugal acceleration condition is calculated according to test parameters, an air chamber of an energy accumulator is pre-inflated, then a power amplifier, a vibration controller and a centering device which are installed in a centrifugal machine chamber are powered on, and meanwhile, a related power supply and an oil supply system outside the centrifugal machine chamber are powered on, so that a cooling and oil supply device and an oil return pump start to work, cooling water circulation is carried out, and oil supply and oil return are carried out by a static pressure supporting device and a full-sealed static pressure bearing to reach a normal working state.
8. The method of using a high overload resistant medium and large water cooled vibration test system as recited in claim 7, further comprising: the method comprises the steps of starting to work, setting test parameters through a computer host, controlling gain through a remote control device of a power amplifier, starting a centrifugal machine, controlling the position of a moving coil through a remote control device, position control and an oil distributing device in the running process of the centrifugal machine, and adjusting the position of a vibrating table body to float by adjusting oil inlet and outlet of a vibration isolation hydraulic cylinder; in the working process, the vibration controller, the power amplifier, the acceleration sensor and the closed-loop control circuit of the vibration controller are carried out in the centrifugal machine room, and the cooling and oil supply device is arranged outside the centrifugal machine room.
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| CN109264026B (en) * | 2018-11-14 | 2022-03-25 | 航宇救生装备有限公司 | Dynamic physical performance test equipment for load-resisting pressure regulator |
| CN110702347A (en) * | 2019-11-12 | 2020-01-17 | 苏州苏试试验集团股份有限公司 | Vibration centrifugal composite test equipment and control method thereof |
| CN113701975B (en) * | 2021-10-08 | 2024-04-09 | 苏州苏试试验集团股份有限公司 | Flexible dynamic water guide device and vibration centrifugal test bed |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1670510A1 (en) * | 1989-07-03 | 1991-08-15 | Всесоюзный научно-исследовательский институт горной геомеханики и маркшейдерского дела | Centrifugal unit for testing samples |
| JP2005091078A (en) * | 2003-09-16 | 2005-04-07 | Imv Corp | Vibration testing system |
| CN103033325A (en) * | 2011-09-29 | 2013-04-10 | 北京强度环境研究所 | Moving part guiding device for vibration table |
| CN104792540A (en) * | 2015-05-21 | 2015-07-22 | 中国工程物理研究院总体工程研究所 | Centrifugal overload test system of solid rocket engine |
| CN105149199A (en) * | 2015-07-14 | 2015-12-16 | 北京卫星环境工程研究所 | Electromagnetic vibration table used in centrifugal state of spacecraft dynamics |
| CN105562221A (en) * | 2016-03-07 | 2016-05-11 | 中国工程物理研究院总体工程研究所 | Large-mass test part mounting device on vibration centrifuge |
| JP2017009295A (en) * | 2015-06-16 | 2017-01-12 | 一般財団法人電力中央研究所 | Three-dimentional six degree-of-freedom vibration table device for centrifugal force loading device |
| CN208043367U (en) * | 2018-01-10 | 2018-11-02 | 北京航天希尔测试技术有限公司 | A kind of medium-and-large-sized Water-cooling vibration pilot system of anti high overload |
-
2018
- 2018-01-10 CN CN201810020869.0A patent/CN107941444B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1670510A1 (en) * | 1989-07-03 | 1991-08-15 | Всесоюзный научно-исследовательский институт горной геомеханики и маркшейдерского дела | Centrifugal unit for testing samples |
| JP2005091078A (en) * | 2003-09-16 | 2005-04-07 | Imv Corp | Vibration testing system |
| CN103033325A (en) * | 2011-09-29 | 2013-04-10 | 北京强度环境研究所 | Moving part guiding device for vibration table |
| CN104792540A (en) * | 2015-05-21 | 2015-07-22 | 中国工程物理研究院总体工程研究所 | Centrifugal overload test system of solid rocket engine |
| JP2017009295A (en) * | 2015-06-16 | 2017-01-12 | 一般財団法人電力中央研究所 | Three-dimentional six degree-of-freedom vibration table device for centrifugal force loading device |
| CN105149199A (en) * | 2015-07-14 | 2015-12-16 | 北京卫星环境工程研究所 | Electromagnetic vibration table used in centrifugal state of spacecraft dynamics |
| CN105562221A (en) * | 2016-03-07 | 2016-05-11 | 中国工程物理研究院总体工程研究所 | Large-mass test part mounting device on vibration centrifuge |
| CN208043367U (en) * | 2018-01-10 | 2018-11-02 | 北京航天希尔测试技术有限公司 | A kind of medium-and-large-sized Water-cooling vibration pilot system of anti high overload |
Non-Patent Citations (4)
| Title |
|---|
| SELF-ALIGNING STANDS ON HYDRAULIC SUPPORTS FOR TESTING PRODUCTS AND SYSTEMS OF AERONAUTICAL AND SPACE-ROCKET ENGINEERING;S. M. Arinkin 等;Journal of Engineering Physics and Thermophysics;第82卷(第4期);803-809 * |
| 离心环境下振动台运动部分及其导向结构受力分析;曹小波;;强度与环境(第06期);50-53 * |
| 综合离心环境试验系统中辅助设备的设计;丁洋 等;强度与环境;第43卷(第02期);60-64 * |
| 针对大型振动试验辅助支撑系统的结构设计与技术改进;冯伟;陈立伟;杨博;张冰;;环境技术(第03期);61-63 * |
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