CN204110351U - A kind of boats and ships floating raft vibration isolation device arrangement structure - Google Patents
A kind of boats and ships floating raft vibration isolation device arrangement structure Download PDFInfo
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- CN204110351U CN204110351U CN201420484008.5U CN201420484008U CN204110351U CN 204110351 U CN204110351 U CN 204110351U CN 201420484008 U CN201420484008 U CN 201420484008U CN 204110351 U CN204110351 U CN 204110351U
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Abstract
The utility model discloses a kind of boats and ships buoyant raft shock-resistant system, comprise middle raft body, both sides, middle raft body upper strata are furnished with several upper strata vibration isolators, and middle Fa Ti lower floor surrounding is furnished with several lower floor's vibration isolators.Described boats and ships buoyant raft shock-resistant system is the buoyant raft shock-resistant system of 4135G diesel engine unit.The beneficial effects of the utility model there is provided the arrangement of the vibration isolator of buoyant raft shock-resistant system, make the impact of vibration isolator arrangement on this system less.
Description
Technical field
The utility model belongs to shipbuilding technical field, relates to a kind of boats and ships floating raft vibration isolation device arrangement structure.
Background technology
Boats and ships buoyant raft shock-resistant system is a kind of vibration isolation noise-decreasing device for the main driving source in cabin.Buoyant Raft Shock-resistant System is exactly a kind of special Multi Layer Vibration Isolation System, the mechanism of its device is exactly the vibrational excitation energy utilizing the damping of Buoyant Raft Shock-resistant System elastic element and intermediate mass to control and produce in boat diesel engine working process of decaying, thus the Oscillation Amplitude of whole hull is reduced, and then for boats and ships safety and comfort navigation offer convenience.Onboard Floating Raft System is arranged on by multiple driving source equipment on a shared raft body (this raft body is also called intermediate mass), raft body be all furnished with vibration isolator up and down, this raft frame is arranged on basic design, and then forms the vibrating isolation system in multicomputer, multiple activation source.Buoyant raft shock-resistant system has features such as reducing that acoustic short circuit, vibration isolating effect are good, compact conformation, saving space, added mass are few, therefore becomes an important vibration isolation technique, obtains extensive concern in recent years.
At present, the research in boats and ships buoyant raft vibration insulation and noise reduction etc., mainly concentrates on the application of warship aspect both at home and abroad.Damper in the past in Buoyant Raft Shock-resistant System only within the scope of special frequency channel effectiveness in vibration suppression better, thus cause the field of application of this technology comparatively limited.Subsequently, a kind of buoyant raft isolation damper being applied to warship and submarine produces, this damper can utilize electro-rheological fluid damper to change its damping force characteristics along with the change of external voltage, not only can adapt to the vibration signal excitation in different frequency range, and can play good effectiveness in vibration suppression.
Utility model content
The purpose of this utility model is to provide a kind of boats and ships buoyant raft shock-resistant system, and the pedestal solving current driving source equipment calculates as stiffener, result and actual also larger problem of coming in and going out.
The technical scheme that the utility model adopts comprises middle raft body, and both sides, middle raft body upper strata are furnished with several upper strata vibration isolators, and middle Fa Ti lower floor surrounding is furnished with several lower floor's vibration isolators.
Further, described boats and ships buoyant raft shock-resistant system is the buoyant raft shock-resistant system of 4135G diesel engine unit.
The beneficial effects of the utility model there is provided the arrangement of the vibration isolator of buoyant raft shock-resistant system, make the impact of vibration isolator arrangement on this system less.
Accompanying drawing explanation
Fig. 1 is the kinetic model of buoyant raft shock-resistant system;
Fig. 2 is that schematic diagram arranged by the utility model boats and ships buoyant raft shock-resistant system vibration isolator.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
In the finite element modeling of watercraft engine room driving source equipment buoyant raft shock-resistant system, mostly the pedestal of driving source equipment was carried out computational analysis as stiffener, therefore result is come in and gone out also larger with the fact in the past.Although the numerical value calculated when causing some system to design looks nice, but greatly differ from each other specific to during real ship application.Major cause is exactly do not fully take into account the nonrigid impact of driving source equipment base when calculating.The purpose of this utility model is to provide a kind of boats and ships buoyant raft shock-resistant system, and this system adopts the mode of non-rigid pedestal to carry out modeling, can improve the anti-vibration performance of buoyant raft shock-resistant system better.
The utility model provides the arrangement of the vibration isolator of buoyant raft shock-resistant system, makes the impact of vibration isolator arrangement on this system less.The buoyant raft shock-resistant system of the utility model to 4135G diesel engine unit has carried out finite element modal analysis.Propose the layout quantity of the vibration isolator on middle raft body upper strata and arrangement is comparatively large on the impact of buoyant raft shock-resistant system, the result of calculation that the impact of vibration isolator arrangement on this system of lower floor is less.Result shows, lower floor's vibration isolator adopts surrounding to arrange, vibration isolating effect when upper strata vibration isolator adopts both sides to arrange is relatively good, and when changing the number that vibration isolator is arranged, not obvious on the impact of vibration isolating effect.
First the utility model sets up kinetics equation and the dynam mechanical model of buoyant raft shock-resistant system, in conjunction with the related data of 4135G diesel engine, establishes the finite element analysis model of this type.The kinetic model of buoyant raft shock-resistant system as shown in Figure 1.Analysis and calculation is carried out to the disturbance force of buoyant raft shock-resistant system, in conjunction with the related data of 4135G diesel engine type, has calculated the major disturbances power of this unit.The arrangement of the vibration isolator of research buoyant raft shock-resistant system, and finite element modal analysis is carried out to the buoyant raft shock-resistant system of 4135G diesel engine unit.Propose the layout quantity of the vibration isolator on middle raft body upper strata and arrangement is comparatively large on the impact of buoyant raft shock-resistant system, the result of calculation that the impact of vibration isolator arrangement on this system of lower floor is less.As shown in Figure 2, Fig. 2 (a) arranges schematic diagram for upper strata vibration isolator 2, and Fig. 2 (b) arranges schematic diagram for lower floor's vibration isolator 3.
The vibration isolating effect of this buoyant raft shock-resistant system is studied, result of study shows, lower floor's vibration isolator adopts surrounding to arrange, vibration isolating effect when upper strata vibration isolator adopts both sides to arrange is relatively good, and when changing the number that vibration isolator is arranged, not obvious on the impact of vibration isolating effect.
The above is only to preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (2)
1. a boats and ships floating raft vibration isolation device arrangement structure, it is characterized in that: comprise middle raft body (1), middle raft body (1) both sides, upper strata are furnished with several upper strata vibration isolators (2), and middle raft body (1) lower floor surrounding is furnished with several lower floor's vibration isolators (3).
2., according to boats and ships floating raft vibration isolation device arrangement structure a kind of described in claim 1, it is characterized in that: described boats and ships floating raft vibration isolation device be arranged on the buoyant raft shock-resistant system of 4135G diesel engine unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484008.5U CN204110351U (en) | 2014-08-26 | 2014-08-26 | A kind of boats and ships floating raft vibration isolation device arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484008.5U CN204110351U (en) | 2014-08-26 | 2014-08-26 | A kind of boats and ships floating raft vibration isolation device arrangement structure |
Publications (1)
| Publication Number | Publication Date |
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| CN204110351U true CN204110351U (en) | 2015-01-21 |
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| CN201420484008.5U Expired - Fee Related CN204110351U (en) | 2014-08-26 | 2014-08-26 | A kind of boats and ships floating raft vibration isolation device arrangement structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881707A (en) * | 2017-11-03 | 2018-04-06 | 珠海格力电器股份有限公司 | A kind of vibration absorber, washing machine and its oscillation damping method |
| CN109458430A (en) * | 2018-11-27 | 2019-03-12 | 中国舰船研究设计中心 | Based on quality, tuning, mixes and cut down vibrating isolation system optimum design method to the floating of effect |
| CN112937758A (en) * | 2021-03-12 | 2021-06-11 | 中国船舶重工集团公司第七一九研究所 | Damping unit, buoyant raft vibration isolation device and ship |
| CN113428291A (en) * | 2021-06-21 | 2021-09-24 | 中国舰船研究设计中心 | Integrated arrangement method for marine diesel engine power station |
| IT202200005282A1 (en) * | 2022-03-17 | 2022-06-17 | Mv Marine Srl | CUSHIONED PLEASURE VESSEL |
-
2014
- 2014-08-26 CN CN201420484008.5U patent/CN204110351U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881707A (en) * | 2017-11-03 | 2018-04-06 | 珠海格力电器股份有限公司 | A kind of vibration absorber, washing machine and its oscillation damping method |
| CN109458430A (en) * | 2018-11-27 | 2019-03-12 | 中国舰船研究设计中心 | Based on quality, tuning, mixes and cut down vibrating isolation system optimum design method to the floating of effect |
| CN112937758A (en) * | 2021-03-12 | 2021-06-11 | 中国船舶重工集团公司第七一九研究所 | Damping unit, buoyant raft vibration isolation device and ship |
| CN113428291A (en) * | 2021-06-21 | 2021-09-24 | 中国舰船研究设计中心 | Integrated arrangement method for marine diesel engine power station |
| IT202200005282A1 (en) * | 2022-03-17 | 2022-06-17 | Mv Marine Srl | CUSHIONED PLEASURE VESSEL |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lu Huiming Inventor after: Zhao Feng Inventor after: Chen Jintao Inventor before: Lu Huiming Inventor before: Zhao Feng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LU HUIMING ZHAO FENG TO: LU HUIMING ZHAO FENG CHEN JINTAO |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20190826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |