CN114543981B - Vibration testing system and method for epoxy gasket of marine equipment - Google Patents
Vibration testing system and method for epoxy gasket of marine equipment Download PDFInfo
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- CN114543981B CN114543981B CN202210185225.3A CN202210185225A CN114543981B CN 114543981 B CN114543981 B CN 114543981B CN 202210185225 A CN202210185225 A CN 202210185225A CN 114543981 B CN114543981 B CN 114543981B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C5/00—Equipment usable both on slipways and in dry docks
- B63C5/02—Stagings; Scaffolding; Shores or struts
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The application provides an application of an epoxy gasket, a vibration testing system and a vibration testing method of the epoxy gasket, wherein the vibration testing system can provide a testing working condition consistent with that of a real ship, so that the real ship state of large equipment when an inclined plane base is installed is simulated, and meanwhile, the construction process of the epoxy gasket is verified and the vibration isolation performance of the epoxy gasket is tested in a related manner. The weight of the counterweight iron can be adjusted to simulate the load of various types of equipment in real time, the form and the size of the base panel and the lower base can be properly modified to simulate the actual installation state of various types of equipment, the excitation frequency of the operation working conditions of different types of equipment can be simulated by preparing excitation sources with different types of specifications, the vibration performance test of different types of materials or equipment can be realized by flexibly distributing the measuring point arrangement of the sensor, and the vibration performance test device has a wide application range.
Description
Technical Field
The application relates to the technical field of ship construction, in particular to application of an epoxy gasket, a vibration testing system and a vibration testing method of the epoxy gasket.
Background
The marine large-scale equipment is generally accurately mounted on the base panel through a steel adjusting gasket, and the purpose of the adjusting gasket is mainly to adjust the position of the equipment so as to accurately position the equipment. The preparation of the steel gasket is one of the most important work in equipment installation, but the steel gasket has the problems of more machining surfaces, large scraping workload, single stress of the metal gasket, complex stress of a footing bolt, quick heat conduction, poor vibration isolation performance, long construction period and the like. In particular for beveled base panels, the process of adapting the steel shims is more complicated.
Therefore, there is a need to propose a new gasket to replace the use of steel gaskets on ships.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present application is to provide an application of an epoxy gasket, a vibration testing system and a testing method for an epoxy gasket, so that the epoxy gasket is used to replace the application of a steel gasket on a ship, and a set of testing system is designed to simulate a real use environment to test the epoxy gasket.
To achieve the above and other related objects, the present application provides an epoxy gasket vibration testing system of a large-sized apparatus, the vibration testing system comprising:
the base assembly comprises bases which are respectively positioned at the left side and the right side and are symmetrically arranged, and the top of the base is provided with a base panel with the inner side inclined downwards;
the equipment assembly comprises a support frame and a workbench, wherein the support frame is correspondingly positioned above the base panel, the bottom of the support frame is provided with an inclined-plane-shaped vibration isolator simulation panel parallel to the base panel, and the workbench is used for placing a counterweight iron, so that the real equipment weight is simulated;
the epoxy gasket is manufactured through a casting process and is filled between the vibration isolator simulation panel and the base panel;
and the excitation assembly is used for generating vibration.
Optionally, the base further comprises a base and base rib plates, and the base is fixed on the test site through foundation bolts.
Optionally, the excitation component comprises an exciter, the exciter is connected with the upper surface of the vibration isolator simulation panel through an excitation rod, a plurality of acceleration sensors are respectively and correspondingly arranged on the upper surface of the vibration isolator simulation panel and the upper surface of the base panel up and down, the acceleration sensors are positioned around the epoxy gasket, the exciter is in communication connection with a vibration analyzer through a signal amplifier, the acceleration sensors are in communication connection with the vibration analyzer, and the vibration analyzer is also connected to a computer;
the vibration exciter is used for generating vibration, and the insertion loss test of the single epoxy gasket is realized by measuring the vibration intensity of the acceleration sensor.
Optionally, the excitation assembly further comprises an active actuator, the active actuator is mounted on the counterweight weight, the active actuator is in communication connection with the vibration analyzer through a signal amplifier, a plurality of acceleration sensors are respectively and correspondingly placed on the upper surface of the vibration isolator simulation panel and the upper surface of the base panel, and the acceleration sensors are respectively located around the epoxy gaskets;
the active actuator is used for generating vibration, and the insertion loss test of the plurality of epoxy gaskets under the load state is realized by measuring the vibration intensity of the acceleration sensor.
The application also provides a vibration testing method using the vibration testing system, which comprises the following steps:
s1: fixing the base assembly on a test site through anchor bolts;
s2: and lifting the equipment assembly to the upper part of the base assembly, adjusting the equipment assembly to a specified position, ensuring that the vibration isolator simulation panel and the base panel correspond to each other and leave a gap, manufacturing a mold frame at the gap, and pouring and curing epoxy resin in the mold frame to form the epoxy gasket.
Optionally, the vibration testing method further comprises the following steps:
s3: connecting the vibration exciter with the upper surface of the vibration isolator simulation panel through a vibration excitation rod, respectively and correspondingly placing a plurality of acceleration sensors on the upper surface of the vibration isolator simulation panel and the upper surface of the base panel up and down, wherein the acceleration sensors are positioned around the epoxy gasket, the vibration exciter is in communication connection with a vibration analyzer through a signal amplifier, the acceleration sensors are in communication connection with the vibration analyzer, and the vibration analyzer is also connected to a computer; and the vibration exciter generates vibration, and the insertion loss of the single epoxy gasket is obtained by measuring the vibration intensity of the acceleration sensor.
Optionally, the vibration testing method further comprises the following steps:
s3: the driving actuator is arranged on the counterweight iron and temporarily fixes the counterweight iron to ensure that the counterweight iron does not move in the test process, the driving actuator is in communication connection with the vibration analyzer through a signal amplifier, a plurality of acceleration sensors are respectively and correspondingly arranged on the upper surface of the vibration isolator simulation panel and the upper surface of the base panel up and down, and the plurality of acceleration sensors are respectively positioned around the epoxy gaskets, the active actuator generates vibration, and the insertion loss of the epoxy gaskets in a load state is obtained by measuring the vibration intensity of the acceleration sensors.
Optionally, the vibration testing method further comprises the following steps:
after the epoxy gasket is replaced with a steel gasket, step S3 is performed again to test the insertion loss of the steel gasket, thereby forming a control experiment.
The application also provides application of the epoxy gasket, wherein the epoxy gasket is filled in the contact surface of the marine base and the marine equipment, and the contact surface is an inclined surface.
Optionally, the epoxy gasket is formed by pouring and curing epoxy resin in a mold frame.
As described above, the application provides an application of an epoxy gasket, a vibration testing system and a vibration testing method of the epoxy gasket, and the vibration testing system can provide a testing working condition consistent with that of a real ship, so that the real ship state of large equipment when an inclined plane base is installed is simulated, and meanwhile, the construction process of the epoxy gasket is verified, and the vibration isolation performance of the epoxy gasket is tested in a related manner. The test system adopts a combined base design, and the left base and the right base are convenient for adjusting the distance between the left base and the right base, so that the adaptation range is wider, the use is more flexible, and the base state of the test system is simulated aiming at equipment with different widths on a ship; during testing, the distribution of the weight and the gravity center of the counterweight weight is adjusted by changing the arrangement of the counterweight weight, so that the inclined plane installation of large-scale equipment of different types can be simulated, and the application range of a test system is greatly expanded; the test system adopts the design of two excitation sources, simultaneously has the vibration performance test of a single sample under no-load state and the vibration performance test of a plurality of samples under load state, and has stronger specialty and wide practicability; the installation scene of the inclined plane of the large-scale equipment, which is realized by simulation of the test system, is completely consistent with the installation of the base and the equipment of the real ship, so that the verification of the casting construction process of the epoxy gasket and the vibration isolation performance test are more close to the actual situation, and the test data and analysis are more real and effective.
Drawings
FIG. 1 is a schematic view of an oxygen pad filled between a base assembly and an equipment assembly according to the present application.
Fig. 2 is a schematic structural view of a base assembly according to the present application.
Fig. 3 shows a schematic structural diagram of the device assembly of the present application.
FIG. 4 is a schematic diagram showing the connection of the components of the vibration testing system of the present application.
Fig. 5 shows a schematic diagram of an insertion loss test for a single epoxy spacer of the present application.
Fig. 6 is a schematic diagram showing an insertion loss test under a plurality of epoxy gasket loading conditions according to the present application.
Description of the reference numerals
1. Base seat
2. Device assembly
3. Counterweight iron weight
4. Base seat
5. Rib plate
6. Base panel
7. Supporting frame
8. Working table
9. Vibration isolator simulation panel
10. Exciting rod
11. Vibration exciter
12. Acceleration sensor
13. Active actuator
20. Epoxy gasket
Detailed Description
Other advantages and effects of the present application will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present application with reference to specific examples. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application.
As described in detail in the embodiments of the present application, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of explanation, and the schematic drawings are only examples, which should not limit the scope of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
For ease of description, spatially relative terms such as "under", "below", "beneath", "above", "upper" and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that these spatially relative terms are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the figures. Furthermore, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or one or more intervening layers may also be present. As used herein, "between … …" is meant to include both endpoints.
In the context of the present application, a structure described as a first feature being "on" a second feature may include embodiments where the first and second features are formed in direct contact, as well as embodiments where additional features are formed between the first and second features, such that the first and second features may not be in direct contact.
It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be changed at will, and the layout of the components may be more complex.
In order to solve the related problems of the steel gasket in the background art, the application provides an application of the novel high-performance epoxy gasket prepared by hyperbranched process on a marine base, namely, the epoxy resin is poured and cured in a mold to form the gasket to replace the traditional steel gasket, and the novel high-performance epoxy gasket has the characteristics of one-step construction, short period, obvious vibration reduction effect, good comprehensive performance and the like, and particularly can be used for a base panel of an inclined plane, so that the construction period can be obviously reduced.
Specifically, the epoxy gasket is filled in the contact surface of the marine base and the marine equipment, the contact surface is an inclined surface, and the epoxy gasket is formed by casting. The casting molding method is the same as the following vibration testing system and the casting molding method in the testing method, and the concrete process is as follows: lifting marine equipment, moving the marine equipment to a position corresponding to the position above the marine base, leaving a gap between the marine equipment and the marine base, manufacturing a mold frame at the gap, and casting and curing epoxy resin in the mold frame to form an epoxy gasket.
Because the epoxy gasket replaces the traditional steel gasket to be used for the inclined plane installation of large-scale equipment for the first time, each control measure and process suitability in the casting process are not verified during construction, and the vibration isolation performance of the gasket cannot be evaluated. The application further provides an epoxy gasket vibration testing system of the large-scale equipment, and by providing a simulation environment consistent with the installation state of the inclined plane of the large-scale equipment, the application not only can carry out construction verification on the pouring process, but also can carry out test analysis on vibration isolation performance so as to evaluate the acoustic quality of the large-scale equipment.
As shown in fig. 1-3, the vibration testing system includes:
the base assembly comprises bases 1 which are respectively positioned at the left side and the right side and are symmetrically arranged, and the top of the base 1 is provided with a base panel 6 with the inner side inclined downwards;
specifically, the base 1 further comprises a base seat 4 and a base rib plate 5, and the base seat 4 is fixed on a test site through foundation bolts. The main structural form, the dimension specification and the like of the base 1 are consistent with the design of a real ship. The problem that the width cannot be adjusted after the traditional integrated base is manufactured is solved, the left base and the right base are adopted in the application, the distance between the left base and the right base is convenient to adjust, the adaptation range is wider, the use is more flexible, and the base state of the device with different widths on a ship is simulated.
The equipment assembly 2, the equipment assembly 2 includes support frame 7 and workstation 8, and support frame 7 corresponds the top that is located base panel 6, and the bottom of support frame 7 has the isolator simulation panel 9 of the inclined plane form that parallels base panel 6, and workstation 8 is used for placing counter weight 3 to simulate real equipment weight. By changing the arrangement of the counterweight weight iron 3 and adjusting the distribution of the weight and the gravity center, the inclined plane installation of different types of large-scale equipment on the ship can be simulated, and the application range of the test system is greatly expanded. In the test, the total weight of the counterweight weight 3 is obtained by subtracting the weights of the support frame 7 and the workbench 8 from the total weight of the large-scale equipment and the vibration isolator. The whole weight and the gravity center of the equipment assembly 2 after the arrangement are consistent with the theoretical weight and the gravity center of the inclined installation of the large-scale equipment. The vibration isolator simulation panel 9 is used to simulate vibration isolators used when large equipment is installed on an actual ship.
The epoxy gasket 20, the epoxy gasket 20 is made through casting technology and is filled between the vibration isolator simulation panel 9 and the base panel 6, and the concrete process is as follows: the equipment assembly 2 is lifted to the upper part of the base assembly, process verification implementation personnel strictly adjust the equipment assembly 2 to a specified position by adopting a special adjusting tool according to a process specified flow, the vibration isolator simulation panel 9 and the base panel 6 are ensured to correspond to each other and leave a gap, then a mold frame is manufactured at the gap, and epoxy resin is poured and cured in the mold frame to form an epoxy gasket 20, so that the pouring molding of the epoxy gasket 20 is ensured to be close to the actual working condition on the ship, and the experimental simulation and data analysis process is more real and effective. In the process, the irrational property of the process appearing in the construction process is recorded and used as document data of construction verification, and basis is provided for process optimization and perfection.
As shown in fig. 4, the test system further includes:
the excitation assembly is used as a vibration source for generating vibration and comprises a vibration exciter 11 and an active actuator 13. The vibration exciter 11 is used for the insertion loss test of a single epoxy gasket 20, the active actuator 13 has larger output and has a vibration active control function, and is used for the insertion loss test of a plurality of epoxy gaskets 20 under the load state. The test system can realize two test modes: a single specimen vibration test mode and multiple specimen vibration test modes under load.
Specifically, in the single-sample vibration test mode, the vibration exciter 11 is used for the insertion loss test of the single epoxy gasket 20, and the vibration exciter 11 is connected to the upper surface of the vibration isolator simulation panel 9 through the vibration exciting rod 10. The upper surface of isolator simulation panel 9 and the upper surface of base panel 6 have placed a plurality of acceleration sensor 12 respectively from top to bottom correspondingly, and a plurality of acceleration sensor 12 are located around epoxy gasket 20, and vibration exciter 11 is through signal amplifier and vibration analysis appearance communication connection, a plurality of acceleration sensor 12 and vibration analysis appearance communication connection, and vibration analysis appearance still is connected to the computer. By measuring the vibration intensity of the acceleration sensor 12, the insertion loss of the individual epoxy shim 20, that is, the influence of the insertion of the epoxy shim on the vibration isolation effect, is obtained. Preferably, the number of acceleration sensors 12 is 4 in total, that is, 2 are placed on the upper surface of the vibration isolator simulation panel 9 and the upper surface of the base panel 6, respectively.
Specifically, in the vibration test mode of the load states of a plurality of samples, the active actuator 13 is mounted on the weight 3, and temporarily fixes the weight 3, so that the weight 3 is ensured not to move in the test process, and is used for insertion loss test of the load states of a plurality of epoxy gaskets 20. The active actuator 13 is in communication connection with the vibration analyzer through a signal amplifier, a plurality of acceleration sensors 12 are respectively and correspondingly arranged on the upper surface of the vibration isolator simulation panel 9 and the upper surface of the base panel 6, and the acceleration sensors 12 are respectively positioned around the epoxy gaskets 20. In the drawings, a cross-sectional view of the base 1 is shown, and the base 1 has a certain length, and a plurality of epoxy spacers 20 can be placed in an aligned manner. Preferably, the number of the epoxy shims 20 is 24, and 1 acceleration sensor 12 is placed on the upper surface of the vibration isolator simulation panel 9 and the upper surface of the base panel 6 around each epoxy shim 20. The test principle using the active actuator 13 is similar to that using the vibration exciter 11, and will not be described here.
The vibration test system provides pouring process construction verification and vibration performance test for the application of the epoxy gasket to the installation of the inclined plane of large equipment. The weight of the counterweight iron can be adjusted to simulate the load of various types of equipment in real time, the form and the size of the base panel and the lower base can be properly modified to simulate the actual installation state of various types of equipment, the excitation frequency of the operation working conditions of different types of equipment can be simulated by preparing excitation sources with different types of specifications, the vibration performance test of different types of materials or equipment can be realized by flexibly distributing the measuring point arrangement of the sensor, and the vibration performance test device has a wide application range.
The application also provides a vibration testing method using the vibration testing system, the vibration testing method comprises the following steps:
s1: fixing the base assembly on a test site through foundation bolts;
s2: lifting the equipment assembly 2 to the upper part of the base assembly, adjusting the equipment assembly 2 to a specified position, ensuring that the vibration isolator simulation panel 9 and the base panel 6 correspond to each other and leave a gap, then manufacturing a mold frame at the gap, and pouring and curing epoxy resin in the mold frame to form an epoxy gasket 20;
s3: connecting a vibration exciter 11 with the upper surface of a vibration isolator simulation panel 9 through a vibration excitation rod 10, respectively placing a plurality of acceleration sensors 12 on the upper surface of the vibration isolator simulation panel 9 and the upper surface of a base panel 6 correspondingly up and down, wherein the acceleration sensors 12 are positioned around an epoxy gasket 20, the vibration exciter 11 is in communication connection with a vibration analyzer through a signal amplifier, the acceleration sensors 12 are in communication connection with the vibration analyzer, and the vibration analyzer is also connected to a computer; the vibration exciter 11 generates vibration, and the insertion loss of the single epoxy gasket 20 is obtained by measuring the vibration intensity of the acceleration sensor 12; after the epoxy gasket 20 is tested, the epoxy gasket 20 is replaced by a steel gasket with the same size and thickness, and the insertion loss of a single steel gasket is tested according to the same method for comparison.
Optionally, step S3 may also be a test of insertion loss under a plurality of steel gasket loading states, specifically including:
the driving actuator 13 is arranged on the counterweight iron 3, the counterweight iron 3 is temporarily fixed, no movement of the counterweight iron 3 in the test process is guaranteed, the driving actuator 13 is in communication connection with the vibration analyzer through the signal amplifier, a plurality of acceleration sensors 12 are respectively and correspondingly arranged on the upper surface of the vibration isolator simulation panel 9 and the upper surface of the base panel 6, and the acceleration sensors 12 are respectively located around the epoxy gaskets 20. The active actuator 13 generates vibration, and the vibration intensity of the acceleration sensor 12 is measured to obtain insertion loss of the plurality of epoxy gaskets 20 under the load state; after the epoxy gaskets 20 are tested, each epoxy gasket 20 is replaced by a steel gasket with the same size and thickness, and the insertion loss of the plurality of steel gaskets under the load state is tested according to the same method for comparison.
In summary, the application provides an application of an epoxy gasket, a vibration testing system and a vibration testing method of the epoxy gasket, wherein the vibration testing system can provide a testing working condition consistent with that of a real ship, so that the real ship state of large equipment when an inclined surface base is installed is simulated, and meanwhile, the construction process of the epoxy gasket is verified, and the vibration isolation performance of the epoxy gasket is tested in a related manner. The test system adopts a combined base design, and the left base and the right base are convenient for adjusting the distance between the left base and the right base, so that the adaptation range is wider, the use is more flexible, and the base state of the test system is simulated aiming at equipment with different widths on a ship; during testing, the distribution of the weight and the gravity center of the counterweight weight is adjusted by changing the arrangement of the counterweight weight, so that the inclined plane installation of large-scale equipment of different types can be simulated, and the application range of a test system is greatly expanded; the test system adopts the design of two excitation sources, simultaneously has the vibration performance test of a single sample under no-load state and the vibration performance test of a plurality of samples under load state, and has stronger specialty and wide practicability; the installation scene of the inclined plane of the large-scale equipment, which is realized by simulation of the test system, is completely consistent with the installation of the base and the equipment of the real ship, so that the verification of the casting construction process of the epoxy gasket and the vibration isolation performance test are more close to the actual situation, and the test data and analysis are more real and effective.
The above embodiments are merely illustrative of the principles of the present application and its effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the application. Accordingly, it is intended that all equivalent modifications and variations of the application be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (6)
1. A vibration testing system for an epoxy gasket of a marine device, the vibration testing system comprising:
the base assembly comprises bases which are respectively positioned at the left side and the right side and are symmetrically arranged, and the top of the base is provided with a base panel with the inner side inclined downwards;
the equipment assembly comprises a support frame and a workbench, wherein the support frame is correspondingly positioned above the base panel, the bottom of the support frame is provided with an inclined-plane-shaped vibration isolator simulation panel parallel to the base panel, and the workbench is used for placing a counterweight iron, so that the real equipment weight is simulated;
the epoxy gasket is manufactured through a casting process and is filled between the vibration isolator simulation panel and the base panel; the epoxy gasket is filled in the contact surface of the marine base and the marine equipment in practical application, and the contact surface is an inclined surface;
an excitation assembly for generating vibrations; the excitation assembly comprises an exciter, the exciter is connected with the upper surface of the vibration isolator simulation panel through an excitation rod, a plurality of acceleration sensors are respectively and correspondingly arranged on the upper surface of the vibration isolator simulation panel and the upper surface of the base panel up and down, the acceleration sensors are positioned around the epoxy gasket, the exciter is in communication connection with a vibration analyzer through a signal amplifier, the acceleration sensors are in communication connection with the vibration analyzer, and the vibration analyzer is also connected to a computer; the vibration exciter is used for generating vibration, and the insertion loss test of a single epoxy gasket is realized by measuring the vibration intensity of the acceleration sensor;
the excitation assembly further comprises an active actuator, the active actuator is mounted on the counterweight weight, the active actuator is in communication connection with the vibration analyzer through a signal amplifier, a plurality of acceleration sensors are respectively and correspondingly arranged on the upper surface of the vibration isolator simulation panel and the upper surface of the base panel up and down, and the acceleration sensors are respectively positioned around the epoxy gaskets; the active actuator is used for generating vibration, and the insertion loss test of the plurality of epoxy gaskets under the load state is realized by measuring the vibration intensity of the acceleration sensor.
2. The vibration testing system of claim 1, wherein the base further comprises a base and a base rib, the base being secured to the test site with anchor bolts.
3. A vibration testing method using the vibration testing system of claim 1, wherein the vibration testing method comprises the steps of:
s1: fixing the base assembly on a test site through anchor bolts;
s2: and lifting the equipment assembly to the upper part of the base assembly, adjusting the equipment assembly to a specified position, ensuring that the vibration isolator simulation panel and the base panel correspond to each other and leave a gap, manufacturing a mold frame at the gap, and pouring and curing epoxy resin in the mold frame to form the epoxy gasket.
4. A vibration testing method according to claim 3, characterized in that the vibration testing method further comprises the steps of:
s3: connecting the vibration exciter with the upper surface of the vibration isolator simulation panel through a vibration excitation rod, respectively and correspondingly placing a plurality of acceleration sensors on the upper surface of the vibration isolator simulation panel and the upper surface of the base panel up and down, wherein the acceleration sensors are positioned around the epoxy gasket, the vibration exciter is in communication connection with a vibration analyzer through a signal amplifier, the acceleration sensors are in communication connection with the vibration analyzer, and the vibration analyzer is also connected to a computer; and the vibration exciter generates vibration, and the insertion loss of the single epoxy gasket is obtained by measuring the vibration intensity of the acceleration sensor.
5. A vibration testing method according to claim 3, characterized in that the vibration testing method further comprises the steps of:
s3: the driving actuator is arranged on the counterweight iron and temporarily fixes the counterweight iron to ensure that the counterweight iron does not move in the test process, the driving actuator is in communication connection with the vibration analyzer through a signal amplifier, a plurality of acceleration sensors are respectively and correspondingly arranged on the upper surface of the vibration isolator simulation panel and the upper surface of the base panel up and down, and the plurality of acceleration sensors are respectively positioned around the epoxy gaskets, the active actuator generates vibration, and the insertion loss of the epoxy gaskets in a load state is obtained by measuring the vibration intensity of the acceleration sensors.
6. The vibration testing method according to claim 4 or 5, characterized in that the vibration testing method further comprises the steps of:
after the epoxy gasket is replaced with a steel gasket, step S3 is performed again to test the insertion loss of the steel gasket, thereby forming a control experiment.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784302A (en) * | 2016-02-02 | 2016-07-20 | 华晨汽车集团控股有限公司 | Automobile modal testing apparatus and method |
| RU2642155C1 (en) * | 2017-01-18 | 2018-01-24 | Олег Савельевич Кочетов | Bench for models of vibration systems of ship engine room power plants vibro-acoustic tests |
| JP2019158492A (en) * | 2018-03-12 | 2019-09-19 | プライムアースＥｖエナジー株式会社 | Vibration device and vehicle vibration reproducing device |
| CN110987345A (en) * | 2019-12-13 | 2020-04-10 | 中国人民解放军海军工程大学 | Performance optimization detection test bed for ship buoyant raft vibration isolation system |
| CN211651995U (en) * | 2019-12-13 | 2020-10-09 | 苏州天东紧固件有限公司 | Threaded fastener lateral vibration test device |
| CN113432818A (en) * | 2021-06-25 | 2021-09-24 | 上海交通大学 | Programmable force-excited blade vibration testing device |
-
2022
- 2022-02-28 CN CN202210185225.3A patent/CN114543981B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784302A (en) * | 2016-02-02 | 2016-07-20 | 华晨汽车集团控股有限公司 | Automobile modal testing apparatus and method |
| RU2642155C1 (en) * | 2017-01-18 | 2018-01-24 | Олег Савельевич Кочетов | Bench for models of vibration systems of ship engine room power plants vibro-acoustic tests |
| JP2019158492A (en) * | 2018-03-12 | 2019-09-19 | プライムアースＥｖエナジー株式会社 | Vibration device and vehicle vibration reproducing device |
| CN110987345A (en) * | 2019-12-13 | 2020-04-10 | 中国人民解放军海军工程大学 | Performance optimization detection test bed for ship buoyant raft vibration isolation system |
| CN211651995U (en) * | 2019-12-13 | 2020-10-09 | 苏州天东紧固件有限公司 | Threaded fastener lateral vibration test device |
| CN113432818A (en) * | 2021-06-25 | 2021-09-24 | 上海交通大学 | Programmable force-excited blade vibration testing device |
Non-Patent Citations (1)
| Title |
|---|
| 船用环氧树脂垫片的浇注成型及相关力学性能研究;李天匀;《中国船舰研究》;第7卷(第1期);第100-104页 * |
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| CN114543981A (en) | 2022-05-27 |
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