CN111156369A - Mixed vibration and noise reduction base structure - Google Patents
Mixed vibration and noise reduction base structure Download PDFInfo
- Publication number
- CN111156369A CN111156369A CN202010014379.7A CN202010014379A CN111156369A CN 111156369 A CN111156369 A CN 111156369A CN 202010014379 A CN202010014379 A CN 202010014379A CN 111156369 A CN111156369 A CN 111156369A
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- base
- web
- panel
- welded
- vibration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M5/00—Engine beds, i.e. means for supporting engines or machines on foundations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a mixed vibration and noise reduction base structure, which comprises: the base comprises a base panel, a base web plate, a base toggle plate and square steel, wherein the whole base is of a welded structure; the base panel is horizontally arranged, a longitudinal web, a transverse web and a base bracket are vertically welded on a lower base web, the base panel, the base web and the base bracket are welded to form the base panel, and square steel is welded at the bottoms of the base web and the base bracket. The base web plate and the base toggle plate are made of high-manganese-based high-damping alloy steel, the damping rate is about 0.03, and the other parts of the structure are made of conventional marine structural steel. The base is integrally connected in a welding mode, and finally the base is installed on the ship structure in a welding mode.
Description
Technical Field
The invention relates to a base structure of water surface ship equipment, in particular to a base structure with high requirements on vibration reduction and noise reduction.
Background
The surface ship base is an indispensable structure for connecting a ship body and equipment. The vibration of the mechanical equipment is radiated to the hull structure and the outside of the hull through the base. For the ship, generally, to reduce the underwater sound radiation noise caused by mechanical noise to the ship, a vibration noise source of mechanical vibration is required, and the equipment itself puts higher requirements to reduce the vibration noise from the source. In the case where it is difficult to further reduce the vibration (noise) of the equipment itself, a vibration isolator is generally required for the equipment, and the vibration and noise of the equipment (vibration source) are reduced to an acceptable range by the vibration isolator. When these measures have been taken, further reduction of the level of structural sound radiation caused by mechanical equipment noise is required, and vibration and noise reduction measures are required for the equipment base structure.
At present, damping is attached to the surface of a base in a vibration and noise reduction measure of the base, but the damping attached to the surface of the base has a very limited vibration reduction effect on the whole base structure. The important concern of researchers in the field is that a new vibration-damping and noise-reducing base can be explored, and the average vibration response from a panel of the conventional steel base to the bottom of the base is remarkably reduced in a range of 1-1000 Hz.
Disclosure of Invention
The invention aims to provide a vibration-damping noise-reducing base structure which can remarkably reduce the average vibration response from a panel of a conventional steel base to the bottom of the base within the range of 1-1000 Hz.
In order to solve the technical problem, the invention provides a mixed vibration and noise reduction base structure, which comprises a base panel, a base web plate, a base toggle plate and square steel, wherein the base is integrally of a welded structure; the base panel is horizontally arranged, a longitudinal web, a transverse web and a base bracket are vertically welded on a lower base web, the base panel, the base web and the base bracket are welded to form the base panel, and square steel is welded at the bottoms of the base web and the base bracket.
Further, the base panel is made of conventional marine structural steel, and the yield strength of the base panel is 235MPa and 355 MPa.
Furthermore, the base web plate and the base toggle plate are made of high-manganese-based high-damping alloy steel, the metallurgical composition of the high-manganese-based high-damping alloy steel is Mn73Cu20Ni5Fe2, the damping value is about 0.03, and the yield strength is about 230 MPa.
Further, the square steel is conventional marine structural steel, and the yield strength is 235MPa and 355 MPa.
Any one of the mixed vibration and noise reduction base structures is integrally manufactured and then is installed on a ship body in a welding mode.
The novel mixed type base structure is formed by mixing and applying the conventional marine structural steel and the high-manganese-based high-damping alloy steel. The problem of if the base all adopts the little rigidity of the elasticity modulus of high manganese base high damping alloy steel is poor is solved, also solved the high manganese base high damping alloy and be not convenient for directly weld on the ship problem through the introduction of square steel. The finally designed base scheme can achieve the effects of excellent vibration and noise reduction performance and convenience in installation.
Drawings
The invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the structure of the hybrid vibration and noise reduction base of the present invention.
Detailed Description
Fig. 1 is a schematic view of a vibration and noise reduction type base. The reference numbers are as follows: base panels 1 and 2, a base transverse web 3, a base longitudinal web 4 and a base longitudinal web 5 with a plate thickness T56 parts of square steel; the base structure panel 1 has a dimension L1×B1The thickness of the plate is T1The width of the base structure panel 2 is B2The thickness of the plate is T2The thickness of the transverse web 3 is T3Bottom dimension L4Distance L between two transverse webs2The thickness of the longitudinal web 4 is T4Bottom dimension L3The thickness of the longitudinal web 5 is T5The base structure is high H.
The mixed vibration and noise reduction base structure comprises 2 base panels 1 in total, 1 base panel 2 in total, two base transverse webs 3 in total, 2 base longitudinal webs 4 in total, 1 base longitudinal web 5 in total, and T-shaped plate thickness5The square steel 6 has 6 blocks in total. The base panels 1 and 2 and the square steel are made of marine structural steel, and the base webs 3, 4 and 5 are made of high-manganese-based high-damping alloy steel. All base panels, webs and bottom square steel are welded in a welding mode.
The mixed type vibration-damping falling base structure panel web plates are all 5mm thick, the panel material is marine B-grade structural steel, the web plate material is high-manganese-base high-damping alloy steel, the square steel size is 30mm multiplied by 30mm, and the material is B-grade structural steel.
The dimensions of the base structure panel 1 are 260mm x 100mm, the width of the base structure panel 2 is 40mm, and the distance L between the transverse webs1The height of the base is 430mm, the bottom of the longitudinal web is 100mm, the bottom of the transverse web is 300mm, and the height of the base is 500 mm.
Claims (5)
1. A hybrid vibration and noise reducing base structure, comprising: the base comprises a base panel, a base web plate, a base toggle plate and square steel, wherein the whole base is of a welded structure;
the base panel is horizontally arranged, a longitudinal web, a transverse web and a base bracket are vertically welded on a lower base web, the base panel, the base web and the base bracket are welded to form the base panel, and square steel is welded at the bottoms of the base web and the base bracket.
2. A hybrid vibration and noise damping base structure as set forth in claim 1 wherein said base deck is constructed of conventional marine structural steel and has a yield strength of 235MPa and 355 MPa.
3. A hybrid vibration and noise reducing base structure as defined in claim 1 wherein said base web and said base toggle are of high manganese based high damping alloy steel having a metallurgical composition of Mn73Cu20Ni5Fe2, a damping value of about 0.03 and a yield strength of about 230 MPa.
4. A hybrid vibration and noise damping base structure as set forth in claim 1, wherein said square steel is conventional marine structural steel and has a yield strength of 235MPa and 355 MPa.
5. A hybrid vibration and noise reduction base structure as claimed in any one of claims 1 to 3, wherein the base structure is integrally manufactured and then mounted to a ship hull by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010014379.7A CN111156369A (en) | 2020-01-07 | 2020-01-07 | Mixed vibration and noise reduction base structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010014379.7A CN111156369A (en) | 2020-01-07 | 2020-01-07 | Mixed vibration and noise reduction base structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111156369A true CN111156369A (en) | 2020-05-15 |
Family
ID=70561978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010014379.7A Pending CN111156369A (en) | 2020-01-07 | 2020-01-07 | Mixed vibration and noise reduction base structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111156369A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657429A (en) * | 2022-03-23 | 2022-06-24 | 西南交通大学 | High-damping Mn-Cu-based alloy material for preparing window frame of motor train window and preparation method thereof |
| CN115036100A (en) * | 2022-04-22 | 2022-09-09 | 广东电网有限责任公司广州供电局 | Offshore floating type wind generating set and vegetable oil transformer thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311574A (en) * | 2008-04-01 | 2008-11-26 | 胡年丰 | Composite damping elastic support |
| CN202783706U (en) * | 2012-07-19 | 2013-03-13 | 中国船舶重工集团公司第七0四研究所 | Horizontal electric windlass with three sprockets |
| CN103352957A (en) * | 2013-07-11 | 2013-10-16 | 中国船舶重工集团公司第七○二研究所 | Vertical-type plate rack vibration isolation base |
| CN103967987A (en) * | 2014-05-15 | 2014-08-06 | 江苏海事职业技术学院 | Adjustable damping device for ship base |
| CN105443649A (en) * | 2016-01-15 | 2016-03-30 | 重庆大学 | High-damp magnesium alloy vibration isolation structure and application thereof |
| CN106828855A (en) * | 2017-02-23 | 2017-06-13 | 中国舰船研究设计中心 | A kind of mixed type vibration and noise reducing base construction |
-
2020
- 2020-01-07 CN CN202010014379.7A patent/CN111156369A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311574A (en) * | 2008-04-01 | 2008-11-26 | 胡年丰 | Composite damping elastic support |
| CN202783706U (en) * | 2012-07-19 | 2013-03-13 | 中国船舶重工集团公司第七0四研究所 | Horizontal electric windlass with three sprockets |
| CN103352957A (en) * | 2013-07-11 | 2013-10-16 | 中国船舶重工集团公司第七○二研究所 | Vertical-type plate rack vibration isolation base |
| CN103967987A (en) * | 2014-05-15 | 2014-08-06 | 江苏海事职业技术学院 | Adjustable damping device for ship base |
| CN105443649A (en) * | 2016-01-15 | 2016-03-30 | 重庆大学 | High-damp magnesium alloy vibration isolation structure and application thereof |
| CN106828855A (en) * | 2017-02-23 | 2017-06-13 | 中国舰船研究设计中心 | A kind of mixed type vibration and noise reducing base construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114657429A (en) * | 2022-03-23 | 2022-06-24 | 西南交通大学 | High-damping Mn-Cu-based alloy material for preparing window frame of motor train window and preparation method thereof |
| CN115036100A (en) * | 2022-04-22 | 2022-09-09 | 广东电网有限责任公司广州供电局 | Offshore floating type wind generating set and vegetable oil transformer thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200515 |