CN102644694A - Vibration isolation system of elastic foundation buoyancy raft for marine machinery - Google Patents
Vibration isolation system of elastic foundation buoyancy raft for marine machinery Download PDFInfo
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- CN102644694A CN102644694A CN2012101293481A CN201210129348A CN102644694A CN 102644694 A CN102644694 A CN 102644694A CN 2012101293481 A CN2012101293481 A CN 2012101293481A CN 201210129348 A CN201210129348 A CN 201210129348A CN 102644694 A CN102644694 A CN 102644694A
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Abstract
The invention relates to a vibration isolation system of an elastic foundation buoyancy raft for marine machinery, which comprises unit vibration isolators, a middle buoyancy raft, valve vibration isolators and an elastic foundation. The middle buoyancy raft is mounted between the unit vibration isolators and the valve vibration isolators, the valve vibration isolators are mounted between the middle buoyancy raft and the elastic foundation, the unit vibration isolators are located on the top layer of the whole vibration isolation system, and the elastic foundation is located on the bottom layer of the whole vibration isolation system. Requirements of marine machinery to vibration control can be met under vibration isolation action of the unit vibration isolators and the valve vibration isolators which are respectively located on the top layer and the bottom layer and by means of coupling effect of the raft and units. By the aid of slots of rib plates of the middle buoyancy raft and holes between an upper plate and a lower plate, bearing capacity of ships can be strengthened, stress is lowered and vibration and noise can be controlled well. In addition, the upper plate and the lower plate of the elastic foundation are provided with the holes, and steel plates of ships serve as the elastic foundation.
Description
Technical field
The present invention relates to a kind of vibrating isolation system, particularly relate to and a kind ofly can greatly reduce vibration and the noise of ship machinery when normally moving, a kind of seaborne machinery elastic base buoyant raft vibrating isolation system that uses on the boats and ships of having relatively high expectations for vibration.
Background technique
Vibration is a kind of common phenomenon in daily production and the life.It not only has influence on the working life of technical equipment; The usability of instrument apparatus, operator's proper functioning, but also have influence on the vitality of naval vessel, aircraft and the technical performance of fighting; Even have influence on people's health, receiving people's attention day by day in the engineering now.
Vibration isolation is the vibration control technology that research is maximum in the vibration control, application is the widest.It is between system, to take certain measure at vibration source, and proper arrangement damping, vibration isolation equipment are with the direct transmission of separating vibration.Its essence is an additional sub-systems (vibration isolator) between vibration source and system.
Vibration isolation form the earliest is a single-layer partiting polarization, promptly between equipment and supporting base, inserts one deck vibration damper, and vibration isolating effect is generally 10dB-20dB, but the stability of a system is relatively poor.
For improving the deficiency of single-layer partiting polarization, the vibration isolation form develops into double-layer vibration isolating system.Promptly between equipment and supporting base, insert two-layer vibration damper and an intermediate mass.Vibration isolating effect can reach 35dB at low frequency, medium-high frequency 50dB.But the vibration isolating effect that goes for, excessive intermediate mass are that boats and ships institute is unaffordable.
Summary of the invention
To the problems referred to above, main purpose of the present invention is to provide a kind of can greatly reduce vibration and the noise of ship machinery when normally moving, a kind of seaborne machinery elastic base buoyant raft vibrating isolation system that uses on the boats and ships of having relatively high expectations for vibration.
The present invention solves above-mentioned technical problem through following technical proposals: a kind of seaborne machinery elastic base buoyant raft vibrating isolation system; Said system comprises unit vibration isolator, middle raft body, valve body vibration isolator and the elastic base of floating; The unsteady raft body in said centre is installed between unit vibration isolator and the valve body vibration isolator; Float between raft body and the elastic base in the middle of the valve body vibration isolator is installed on; The unit vibration isolator is positioned at the superiors of whole vibrating isolation system, and elastic base is positioned at the orlop of whole vibrating isolation system.
In specific embodiment of the present invention, said unit vibration isolator bolt is connected and installed in the equipment on the said unit vibration isolator.
In specific embodiment of the present invention, the said centre raft body that floats is the steel material housing, offers hole slot, said centre on the floor of the middle raft body that floats and floats and offer hole on the upper and lower plates of raft body.
In specific embodiment of the present invention, said valve body vibration isolator is the valve body vibration isolator of the big rigidity of big damping, and said valve body vibration isolator adopts bolt to be connected in middle floating between raft body and the elastic base.
In specific embodiment of the present invention, the upper and lower plates of said elastic base offers hole.
In specific embodiment of the present invention, said elastic base is the boats and ships steel plate on the entity ship.
In specific embodiment of the present invention, said elastic base is foundation on subgrade engineering.
Positive progressive effect of the present invention is: seaborne machinery elastic base buoyant raft vibrating isolation system provided by the invention has the following advantages: the present invention is through the vibration isolation effect of two-layer vibration isolator up and down; Intercoupling when utilizing raft body and unit vibration simultaneously; Can realize the requirement of seaborne machinery for vibration control; The middle hole slot of raft body floor and the hole between the upper and lower plates of floating; Can increase the bearing capacity of boats and ships greatly, reduce stressing conditions, vibration and noise control have been played very big control action.The elastic base upper and lower plates offers hole, and elastic base is the boats and ships steel plate on the entity ship.The present invention is the key technology of following Ship Vibration noise control, greatly reduces vibration and the noise of ship machinery when normally moving, and the boats and ships of having relatively high expectations for vibration are significant.
Description of drawings
Fig. 1 is the structural representation of stereogram of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to specify technological scheme of the present invention.
Fig. 1 is the structural representation of stereogram of the present invention.As shown in Figure 1: the present invention includes unit vibration isolator 1, the middle raft body 2 that floats is on the raft body 2 that floats in the middle of unit vibration isolator 1 bolt is connected in; Offer hole slot and hole on the floor of the middle raft body 2 that floats; Float in the middle of valve body vibration isolator 3 bolts are connected under the raft body 2, elastic base 4 bolts are connected under the valve body vibration isolator 3, and elastic base 4 upper and lower plates offer hole; Elastic base 4 is the boats and ships steel plate on the entity ship, is foundation on subgrade engineering.Be connected on the unit vibration isolator 1 by vibration isolation machinery bolt.
In practical implementation of the present invention, unit vibration isolator 1 is the little rigid spring vibration isolator of little damping.In practical implementation of the present invention, the middle raft body 2 that floats is a steel matter housing.In practical implementation of the present invention, valve body vibration isolator 3 is the big rigidity rubber vibration isolator of big damping.In practical implementation of the present invention, elastic base 4 is a steel matter housing.
The present invention is through the vibration isolation effect of two-layer vibration isolator up and down; Intercoupling when utilizing raft body and unit vibration simultaneously; Can realize the requirement of seaborne machinery for vibration control, the middle hole slot of raft body floor and the hole between the upper and lower plates of floating can increase the bearing capacity of boats and ships greatly; Reduce stressing conditions, vibration and noise control have been played very big control action.The elastic base upper and lower plates offers hole, and elastic base is the boats and ships steel plate on the entity ship.Realization of the present invention can be described as the key technology of following Ship Vibration noise control, greatly reduces vibration and the noise of ship machinery when normally moving, and the boats and ships of having relatively high expectations for vibration are significant.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention, and under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications; These variations and improvement all fall in the scope of the invention that requires protection, and the present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (7)
1. seaborne machinery elastic base buoyant raft vibrating isolation system; Said system comprises unit vibration isolator (1), middle raft body (2), valve body vibration isolator (3) and the elastic base (4) of floating; It is characterized in that: the unsteady raft body (2) in said centre is installed between unit vibration isolator (1) and the valve body vibration isolator (3); Float between raft body (2) and the elastic base (4) in the middle of valve body vibration isolator (3) is installed on; Unit vibration isolator (1) is positioned at the superiors of whole vibrating isolation system, and elastic base (4) is positioned at the orlop of whole vibrating isolation system.
2. seaborne machinery elastic base buoyant raft vibrating isolation system according to claim 1 is characterized in that: said unit vibration isolator (1) bolt is connected and installed in the equipment on the said unit vibration isolator (1).
3. seaborne machinery elastic base buoyant raft vibrating isolation system according to claim 1; It is characterized in that: the said centre raft body (2) that floats be the steel material housing, offers on the floor of the middle raft body (2) that floats on the upper and lower plates of hole slot, the unsteady raft body (2) in said centre and offers hole.
4. seaborne machinery elastic base buoyant raft vibrating isolation system according to claim 1; It is characterized in that: said valve body vibration isolator (3) is the valve body vibration isolator of the big rigidity of big damping, and said valve body vibration isolator (3) adopts bolt to be connected in middle floating between raft body (2) and the elastic base (4).
5. seaborne machinery elastic base buoyant raft vibrating isolation system according to claim 1, it is characterized in that: the upper and lower plates of said elastic base (4) offers hole.
6. seaborne machinery elastic base buoyant raft vibrating isolation system according to claim 1 is characterized in that: said elastic base (4) is the boats and ships steel plate on the entity ship.
7. seaborne machinery elastic base buoyant raft vibrating isolation system according to claim 1 is characterized in that: said elastic base (4) is foundation on subgrade engineering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101293481A CN102644694A (en) | 2012-04-27 | 2012-04-27 | Vibration isolation system of elastic foundation buoyancy raft for marine machinery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101293481A CN102644694A (en) | 2012-04-27 | 2012-04-27 | Vibration isolation system of elastic foundation buoyancy raft for marine machinery |
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| CN102644694A true CN102644694A (en) | 2012-08-22 |
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| CN2012101293481A Pending CN102644694A (en) | 2012-04-27 | 2012-04-27 | Vibration isolation system of elastic foundation buoyancy raft for marine machinery |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639242A (en) * | 2018-06-12 | 2018-10-12 | 上海交通大学 | Honeycomb vibration-isolated floating raft device based on Negative poisson's ratio and manufacturing method |
| CN109695657A (en) * | 2019-01-18 | 2019-04-30 | 大连理工大学 | A kind of topological optimization buoyant raft raft structure |
| 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 |
| CN111532403A (en) * | 2020-05-15 | 2020-08-14 | 中国科学院声学研究所 | Formula cabin raft is embraced in sinking |
| 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 |
| CN113323986A (en) * | 2021-06-30 | 2021-08-31 | 中国人民解放军海军工程大学 | Marine double-pump module symmetric floating raft vibration isolation structure |
| CN113374823A (en) * | 2021-06-30 | 2021-09-10 | 中国人民解放军海军工程大学 | Marine multi-pump module symmetrical floating raft vibration isolation structure |
| CN116164151A (en) * | 2023-04-21 | 2023-05-26 | 东方电气集团东方电机有限公司 | Ball valve mounting structure and hydroelectric power generation system |
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| JP2002206595A (en) * | 2000-05-30 | 2002-07-26 | Kimio Kawai | Vibration isolation device and quake absorbing rack using the same |
| CN101074049A (en) * | 2007-06-25 | 2007-11-21 | 哈尔滨工程大学 | Semi-active impact-resisting and bumping controller based electromagnetic vibration absorber |
| CN101311070A (en) * | 2008-06-19 | 2008-11-26 | 江苏南极机械有限责任公司 | Modularized shock resistant vibration isolation raft for ship basic propulsion system |
| CN201224479Y (en) * | 2008-06-19 | 2009-04-22 | 江苏南极机械有限责任公司 | Modularized shock resistant vibrating isolation buoyant raft for shipping main propulsion unit |
| CN202674155U (en) * | 2012-04-27 | 2013-01-16 | 上海海事大学 | Elastic foundation buoyant raft vibration isolation system for boat mechanical equipment |
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2012
- 2012-04-27 CN CN2012101293481A patent/CN102644694A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002206595A (en) * | 2000-05-30 | 2002-07-26 | Kimio Kawai | Vibration isolation device and quake absorbing rack using the same |
| CN101074049A (en) * | 2007-06-25 | 2007-11-21 | 哈尔滨工程大学 | Semi-active impact-resisting and bumping controller based electromagnetic vibration absorber |
| CN101311070A (en) * | 2008-06-19 | 2008-11-26 | 江苏南极机械有限责任公司 | Modularized shock resistant vibration isolation raft for ship basic propulsion system |
| CN201224479Y (en) * | 2008-06-19 | 2009-04-22 | 江苏南极机械有限责任公司 | Modularized shock resistant vibrating isolation buoyant raft for shipping main propulsion unit |
| CN202674155U (en) * | 2012-04-27 | 2013-01-16 | 上海海事大学 | Elastic foundation buoyant raft vibration isolation system for boat mechanical equipment |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108639242A (en) * | 2018-06-12 | 2018-10-12 | 上海交通大学 | Honeycomb vibration-isolated floating raft device based on Negative poisson's ratio and manufacturing method |
| CN109695657A (en) * | 2019-01-18 | 2019-04-30 | 大连理工大学 | A kind of topological optimization buoyant raft raft structure |
| CN109695657B (en) * | 2019-01-18 | 2024-01-02 | 大连理工大学 | Topological optimization buoyant raft body structure |
| 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 |
| CN111532403A (en) * | 2020-05-15 | 2020-08-14 | 中国科学院声学研究所 | Formula cabin raft is embraced in sinking |
| 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 |
| CN113323986A (en) * | 2021-06-30 | 2021-08-31 | 中国人民解放军海军工程大学 | Marine double-pump module symmetric floating raft vibration isolation structure |
| CN113374823A (en) * | 2021-06-30 | 2021-09-10 | 中国人民解放军海军工程大学 | Marine multi-pump module symmetrical floating raft vibration isolation structure |
| CN113374823B (en) * | 2021-06-30 | 2022-03-04 | 中国人民解放军海军工程大学 | Marine multi-pump module symmetrical floating raft vibration isolation structure |
| CN113323986B (en) * | 2021-06-30 | 2022-03-04 | 中国人民解放军海军工程大学 | Marine double-pump module symmetric floating raft vibration isolation structure |
| CN116164151A (en) * | 2023-04-21 | 2023-05-26 | 东方电气集团东方电机有限公司 | Ball valve mounting structure and hydroelectric power generation system |
| CN116164151B (en) * | 2023-04-21 | 2023-07-18 | 东方电气集团东方电机有限公司 | Ball valve mounting structure and hydroelectric power generation system |
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Application publication date: 20120822 |