CN202522387U - Vibration test device of ship and ocean engineering local structure - Google Patents
Vibration test device of ship and ocean engineering local structure Download PDFInfo
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- CN202522387U CN202522387U CN 201220175524 CN201220175524U CN202522387U CN 202522387 U CN202522387 U CN 202522387U CN 201220175524 CN201220175524 CN 201220175524 CN 201220175524 U CN201220175524 U CN 201220175524U CN 202522387 U CN202522387 U CN 202522387U
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- acceleration transducer
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Abstract
The utility model relates to a vibration test device of a ship and ocean engineering local structure. The vibration test device comprises a mounting base and at least one acceleration sensor, wherein the mounting base is provided with a body and a foot part arranged below the body, and the foot part can be vertically arranged on a test surface of the ship and ocean engineering local structure; the at least one acceleration sensor can be detachably arranged on the body of the mounting base; and the inherent frequency of the vibration test device is beyond the test frequency range of vibration test. A vibration test method comprises the following steps of: laying a plurality of vibration test devices on an approximately horizontal test surface of the ship and ocean engineering local structure to be tested. According to the vibration test device disclosed by the utility model, the assembly efficiency of the acceleration sensor can be greatly improved, and the vibration test of the local structure can be rapidly, reliably and conveniently realized.
Description
Technical field
The utility model relates to the test unit of boats and ships and oceanographic engineering, and is special relevant with the vibration testing device of a kind of X/Y/Z three axial boats and ships and oceanographic engineering partial structurtes.
Background technology
When the partial structurtes vibration of boats and ships and the oceanographic engineering such as drilling platform tries actual state in the sea; What produced is the compound vibration of three directions of X/Y/Z; Usually, the vibration of boats and ships and oceanographic engineering sea examination program requires to realize within a certain period of time the data acquisition of hundreds of points.The way of existing structural vibration test is normally: adopt the three-dimensional acceleration transducer, and bonding between three-dimensional acceleration transducer and the substrate as measurand; Perhaps, adopt unidirectional acceleration transducer, through magnetic seat magnetic attachment, so, each sampled point need be axial by three of X/Y/Z, carries out three test/samplings between the substrate of unidirectional acceleration transducer and measurand.Not enough below existing way exists: a, for bonding way; Because using bonding agent and substrate bonding installs; Single test just needs hundreds of repeatedly the circulation to smear the process of bonding agent-bonding-inspection affirmation bonding strength-data acquisition-dismounting inferiorly like this, wastes time and energy; Work efficiency is lower, and occurs easily because of the bonding not firm appearance that causes test error; B, for magnetic attachment mode, only can be applicable to that substrate is the occasion of metal material such as steel construction, can not be applicable to a large amount of situations that adopt the nonmetallic materials members such as life zone of boats and ships and oceanographic engineering; C, no matter be bonding way or magnetic attachment mode, all can't realize fast, reliable with make overall plans easily, at the appointed time, arrange to be difficult to finish the work under the prerequisite of workload.
The utility model content
The technical matters that the utility model will solve is to overcome the deficiency that above-mentioned prior art exists, and proposes the vibration testing device of a kind of boats and ships and oceanographic engineering partial structurtes, can be fast, reliably and realize the vibration test of partial structurtes easily.
The utility model people of the utility model is through discovering; Through a mount pad is set; Its structure is designed; Can be attached on this mount pad by degree of will speed up sensor, and can with this mount pad easily, carry out the laying of acceleration transducer at the test surfaces of the approximate horizontal of object to be tested lay efficient thereby improve greatly with the mode of putting together with the acceleration transducer of installing on it; And; Through this mount pad is designed together with material, shape and the physical dimension of installing the acceleration transducer on it; Can make this mount pad avoid the test frequency scope of vibration test easily together with the natural frequency of acceleration transducer of installing on it, thus the reliability of lifting test.
The technical scheme that the utility model proposes to above-mentioned technical matters comprises; The vibration testing device of a kind of boats and ships and oceanographic engineering partial structurtes is proposed; Comprise: a mount pad; It has a body and a foot that is arranged on this body below, can this vibration testing device be stood up the test surfaces in boats and ships and oceanographic engineering partial structurtes through this foot; At least one acceleration transducer removably is installed on the body on this mount pad; The natural frequency of this vibration testing device is to avoid the test frequency scope of vibration test.
This body has respectively three installed surfaces perpendicular to the X-Y-Z axle, with this at least one acceleration transducer of correspondence installing.
In one embodiment, the number of acceleration transducer is one, and it is installed in the end face perpendicular to the Z axle of this body.
In another embodiment, the number of acceleration transducer is three, is installed in the end face perpendicular to the Z axle of this body respectively, perpendicular to the side of Y axle and perpendicular to the side of X axle.
This at least one acceleration transducer is to be bonded on this body; Perhaps, this body is a metal material, and this at least one acceleration transducer is that magnetic is adsorbed on this body.
This body is a cube, and three installed surfaces of this body are respectively arranged with a threaded hole to cooperate the installing of acceleration transducer.
The test frequency scope of this vibration test is 1-100Hz.
The quality of this body is roughly 1Kg.
This foot comprises that vertically to three supporting legs that extend below, those supporting legs are height-adjustable, and every supporting leg comprises a base portion; One mating part is extended upward out by this base portion, and it is a right cylinder, and its upper end is in order to regulate the thread segment of height; And a support portion, extending downwards by this base portion, it is a cone down.
The horizontal tilt angle of the test surfaces of these boats and ships and oceanographic engineering partial structurtes is not more than 10 degree.
Compared with prior art; The vibration testing device of boats and ships of the utility model and oceanographic engineering partial structurtes; Through a mount pad is set dexterously, degree of will speed up sensor is mounted thereto, and makes this mount pad be attached to test point with the form of putting; Can improve the installing efficient of acceleration transducer greatly, can be fast, reliable and realize the vibration test of partial structurtes easily.
Description of drawings
Fig. 1 is the vibration testing device embodiment one of the utility model and the structural representation of measurand.
Fig. 2 is the main body structure synoptic diagram of mount pad among the vibration testing device embodiment one of the utility model.
Fig. 3 is the structural representation of the supporting leg of mount pad among the vibration testing device embodiment one of the utility model.
Fig. 4 is the vibration testing device embodiment two of the utility model and the structural representation of measurand.
Fig. 5 is the schematic flow sheet of the vibration test method of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is given elaboration further.
Referring to Fig. 1; The vibration testing device embodiment one of boats and ships of the utility model and oceanographic engineering partial structurtes roughly comprises: a mount pad 80; It has a body 1 and the foot that is arranged on this body 1 below, can this vibration testing device be stood up the test surfaces in boats and ships and oceanographic engineering partial structurtes through this foot; One acceleration transducer 40 removably is installed on the body 1 on this mount pad 80; The natural frequency of this vibration testing device is to avoid the test frequency scope of vibration test.Wherein, these boats and ships and oceanographic engineering partial structurtes comprise steel construction 10 and are laid on the floor 20 on this steel construction 10.This test frequency scope is 1-100Hz.This acceleration transducer 40 is to be bonded on this body 1; Perhaps, this body 1 is a metal material, and this acceleration transducer 40 is that magnetic is adsorbed on this body 1.
Referring to Fig. 2, the body 1 of mount pad 80 is a cube among the vibration testing device embodiment one of the utility model, and this body 1 has installed surface 11 perpendicular to the X axle, perpendicular to the installed surface 12 of Y axle and perpendicular to the installed surface 13 of Z axle.This acceleration transducer is the three-dimensional acceleration transducer, and it is installed on the end face 13 perpendicular to the Z axle of this body 1.The reliable installing of acceleration transducer 40 for ease is respectively arranged with a threaded hole 111,121,131 on three installed surfaces 11,12,13 of this body 1.In a specific embodiment, this body is a steel construction, and quality is roughly 1Kg, and volume is roughly 50*50*50mm
3In other specific embodiment, this body also can be other shapes, such as rectangular parallelepiped, again such as right cylinder.When the less size of needs, can adopt copper, plumbous and so on the bigger material of proportion, when allowing bigger size, then can adopt aluminium even non-metallic material.
Referring to Fig. 3, mount pad 80 foots comprise three supporting legs 2 among the vibration testing device embodiment one of the utility model, and those supporting legs 2 are height-adjustable, and every supporting leg 2 comprises a base portion 21; One mating part 22 is extended upward out by this base portion 21, and it is a right cylinder, and its upper end 221 is in order to regulate the thread segment of height; And a support portion 23, extending downwards by this base portion 21, it is a cone down, the vertex of a cone 231 is the foothold.This foot structure can be simulated the force situation of human foot to ground.Under normal conditions, just: in the environment that human body can bear, vibration frequency is at 1-80Hz, and vibration acceleration is at 10m/s
2About in; When the inclined degree on floor 20 meets requiring of extra large strip spare (generally the angle of inclination is not more than 10 degree); Rely on the contact of these three vertex of a cones 231, vibration testing device can be securely attached to test point, and phenomenon such as can not occur sliding, beat.
Referring to Fig. 4; The vibration testing device embodiment two of boats and ships of the utility model and oceanographic engineering partial structurtes mainly is with the difference of the foregoing description one: acceleration transducer by a three-dimensional become three unidirectional, comprise be installed in this body 1 perpendicular to the Z axle acceleration sensor on the end face 13 of Z axle, perpendicular to the X axle acceleration sensor on the side 11 of Y axle and perpendicular to the Y axle acceleration sensor on the side 12 of Y axle.
Referring to Fig. 5, the flow process of the vibration test method of boats and ships of the utility model and oceanographic engineering partial structurtes roughly may further comprise the steps: S1: with reference to the requirement of standard, technical specification book, overall procedure, the target of confirmed test; S2: formulate extra large method for testing, the confirmed test flow process; S3:, carry out the installing of the vibration testing device of multiple spot with the form of putting; S4: multi-point signal collection and data processing; S5: analysis result; S6: compare with standard, need reform? Be, return step S3, otherwise, or be that test meets the demands, or be to leave too far that at this moment current necessity of not reforming all be to turn to step S7; S7: provide report.
Wherein, two corresponding steps: S2-1 that also comprise matching step S2: confirm the depth of water, wind direction, wind-force and ballasted condition; S2-2: time and the operating mode of confirming defined.
Corresponding steps a: S3-1 who also comprises matching step S3 and S4: instrument is checked.
The vibration test method of the utility model and the difference of existing vibration test method are mainly reflected in step S3; The method of the utility model; According to test condition; No matter be form through adopting above-mentioned vibration testing device embodiment one to install a three-dimensional acceleration transducer 40, perhaps, still the form through adopting above-mentioned vibration testing device embodiment two is to install the combination in any of three unidirectional acceleration transducers 50,60,70; Can both carry out the installing of vibration testing device with the form of putting.And need not adopt mode bonding or that magnetic attaches to carry out the installing of vibration testing device to each test point as existing.Because other steps, belong to the technology of existing maturation, do not have with the technology of the utility model and relate to, repeat no more at this.
Using a specific embodiment of the vibration test method of the utility model, is on-the-spot in the examination of the sea of certain deep water semi-submersible drilling platform, and the physical dimension of this drilling platform has, length overall 104.5m; Molded breadth 65.0m; Moldeed depth 36.85m; Deck erection 81m*65m*7.6m, wherein the living quarters is 20m*65m*7.6m, the machinery district is 60m*65m*7.6m; Column 13m*13m*19.5m; Floating drum 104.5m*13m*9.75m.Partial structurtes vibrations sampled point add up to 186, each sampled point has three directions of X/Y/Z, sampled point spreads all over the deck erection of whole drilling platform, comprises living quarters, machinery district and open deck etc.Vibration testing device shown in Figure 1 is the situation that is laid in accommodation.The signal wire 401 of three-dimensional acceleration transducer 40 is connected with front end data acquisition equipment, in official hour, can collect real operating mode accurately.
Using another specific embodiment of the vibration test method of the utility model, is on-the-spot in the examination of the sea of certain deep water semi-submersible drilling platform, and the drilling platform in its structure and the above-mentioned specific embodiment is similar.Partial structurtes vibrations sampled point add up to 131, each sampled point has three directions of X/Y/Z, sampled point spreads all over the deck erection of whole drilling platform, comprising living quarters, machinery district and open deck etc.Vibration testing device shown in Figure 4 is the situation that is laid in the cabin, living quarters.The signal wire 501,601,701 of three unidirectional acceleration transducers 50,60,70 is connected with front end data acquisition equipment, in official hour, can collect real operating mode accurately.
Need to prove; Because structurally there are a lot of common parts in boats and ships and drilling platform, the vibration testing device of the utility model is not limited to above-mentioned drilling platform; Also can be applied on engineering ship and the general boats and ships, so that in the similar vibration environment of other industry.
Compared with prior art; Boats and ships of the utility model and oceanographic engineering partial structurtes vibration testing device have the following advantages: when needs separate X/Y/Z respectively to the collection of carrying out data and processing; Can switch at three direction straight-line oscillation of X/Y/Z test bay fast; Save operations such as the bonding installation of bonding agent, the installation of magnetic seat or studs installation, can improve the efficient of vibration test greatly, the multi-point sampling when especially being embodied in the examination of boats and ships and oceanographic engineering sea; Can collect three directions of X/Y/Z truly and make time spent compound vibration signal simultaneously, reappear real operating mode exactly,, thereby improve vibration test result's precision greatly more near the vibration environment of natural reality; Through body 1 being adopted metal material such as steel; Can realize being connected of three directional acceleration sensors of X/Y/Z simultaneously easily; Thereby on the fitting-out floor of boats and ships and oceanographic engineering, can transmit the vibration force that comes from vibration source accurately, with warranty test precision and test efficiency; Through substitute the laying mode of transmission with the mode of putting, can be under official hour and working condition, the examination scene in the sea, the purpose that reaches multi-point data acquisition that can precise and high efficiency.
Foregoing; Be merely the preferred embodiment of the utility model; It is not the embodiment that is used to limit the utility model; Those of ordinary skills can carry out corresponding flexible or modification, so the protection domain of the utility model should be as the criterion with the desired protection domain of claims very easily according to the main design and the spirit of the utility model.
Claims (10)
1. the vibration testing device of boats and ships and oceanographic engineering partial structurtes is characterized in that, comprising:
One mount pad, it has a body and the foot that is arranged on this body below, can this vibration testing device be stood up the test surfaces in boats and ships and oceanographic engineering partial structurtes through this foot;
At least one acceleration transducer removably is installed on the body on this mount pad;
The natural frequency of this vibration testing device is to avoid the test frequency scope of vibration test.
2. according to the described vibration testing device of claim 1, it is characterized in that this body has respectively three installed surfaces perpendicular to the X/Y/Z axle, with this at least one acceleration transducer of correspondence installing.
3. according to the described vibration testing device of claim 2, it is characterized in that the number of acceleration transducer is one, it is installed in the end face perpendicular to the Z axle of this body.
4. according to the described vibration testing device of claim 2, it is characterized in that the number of acceleration transducer is three, be installed in the end face perpendicular to the Z axle of this body respectively, perpendicular to the side of Y axle and perpendicular to the side of X axle.
5. according to the described vibration testing device of claim 1, it is characterized in that this at least one acceleration transducer is to be bonded on this body; Perhaps, this body is a metal material, and this at least one acceleration transducer is that magnetic is adsorbed on this body.
6. according to the described vibration testing device of claim 2, it is characterized in that this body is a cube, three installed surfaces of this body are respectively arranged with a threaded hole to cooperate the installing of acceleration transducer.
7. according to the described vibration testing device of claim 1, it is characterized in that the test frequency scope of this vibration test is 1-100Hz.
8. according to the described vibration testing device of claim 1, it is characterized in that the quality of this body is roughly 1Kg.
9. according to the described vibration testing device of claim 1, it is characterized in that this foot comprises that vertically to three supporting legs that extend below, those supporting legs are height-adjustable, every supporting leg comprises a base portion; One mating part is extended upward out by this base portion, and it is a right cylinder, and its upper end is in order to regulate the thread segment of height; And a support portion, extending downwards by this base portion, it is a cone down.
10. according to the described vibration testing device of claim 1, it is characterized in that the horizontal tilt angle of the test surfaces of these boats and ships and oceanographic engineering partial structurtes is not more than 10 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220175524 CN202522387U (en) | 2012-04-23 | 2012-04-23 | Vibration test device of ship and ocean engineering local structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220175524 CN202522387U (en) | 2012-04-23 | 2012-04-23 | Vibration test device of ship and ocean engineering local structure |
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| Publication Number | Publication Date |
|---|---|
| CN202522387U true CN202522387U (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220175524 Expired - Fee Related CN202522387U (en) | 2012-04-23 | 2012-04-23 | Vibration test device of ship and ocean engineering local structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376194A (en) * | 2012-04-23 | 2013-10-30 | 烟台中集来福士海洋工程有限公司 | Device and method for vibration tests of ship and ocean engineering local structure |
| CN105953993A (en) * | 2016-07-04 | 2016-09-21 | 中国兵器工业第二〇三研究所 | Rapid vibration testing method |
| CN114689256A (en) * | 2022-03-11 | 2022-07-01 | 哈尔滨工程大学 | Impact vibration auxiliary testing device for marine launching platform and mounting method |
-
2012
- 2012-04-23 CN CN 201220175524 patent/CN202522387U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376194A (en) * | 2012-04-23 | 2013-10-30 | 烟台中集来福士海洋工程有限公司 | Device and method for vibration tests of ship and ocean engineering local structure |
| CN103376194B (en) * | 2012-04-23 | 2016-01-20 | 烟台中集来福士海洋工程有限公司 | The vibration testing device of boats and ships and oceanographic engineering partial structurtes and method |
| CN105953993A (en) * | 2016-07-04 | 2016-09-21 | 中国兵器工业第二〇三研究所 | Rapid vibration testing method |
| CN105953993B (en) * | 2016-07-04 | 2018-06-01 | 中国兵器工业第二一三研究所 | A kind of fast vibration test method |
| CN114689256A (en) * | 2022-03-11 | 2022-07-01 | 哈尔滨工程大学 | Impact vibration auxiliary testing device for marine launching platform and mounting method |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20170423 |