CN112539243A - Polar region ship shafting vibration intelligent control device that circles round - Google Patents
Polar region ship shafting vibration intelligent control device that circles round Download PDFInfo
- Publication number
- CN112539243A CN112539243A CN202011335052.6A CN202011335052A CN112539243A CN 112539243 A CN112539243 A CN 112539243A CN 202011335052 A CN202011335052 A CN 202011335052A CN 112539243 A CN112539243 A CN 112539243A
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- rotor
- permanent magnet
- shafting
- control device
- stator
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Classifications
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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
- F16F15/023—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 fluid means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
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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
- F16F15/002—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion characterised by the control method or circuitry
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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
- F16F15/03—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 magnetic or electromagnetic means
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
-
- 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
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/045—Fluids magnetorheological
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/18—Control arrangements
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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)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides an intelligent control device for polar ship shafting cyclotron vibration, which comprises: permanent magnet, magnetorheological damping, coil, iron core, roller, rotor, stator. The permanent magnet and the magneto-rheological damper are positioned in the groove of the rotor, and the permanent magnet, the magneto-rheological damper and the rotor do not move relatively, namely the permanent magnet and the magneto-rheological damper are fixed in the rotor. The coil and the iron core are positioned in the stator and are slotted, and the coil and the iron core are fixed in the stator. The rotor exterior and the stator interior are provided with roller slots, and the rollers 5 are positioned in the roller slots. The polar ship shafting intelligent rotary vibration control device provided by the invention can effectively realize the control of the polar ship shafting rotary vibration by adopting the magneto-rheological damping technology, avoid the resonance and structural damage caused by the shafting rotary vibration and ensure the safe reliability of the ship sailing in the ice region.
Description
Technical Field
The invention relates to the field of vibration reduction of ship shafting, in particular to an intelligent polar ship shafting rotary vibration control device.
Background
During the navigation of the polar ship, the excitation force of the polar ship is more prominent under the influence of ice compared with that of an open water area, and the hydrodynamic performance is greatly influenced. The shafting is used as a core part for transferring the acting force, and the quality of the performance of the shafting has important influence on the safety reliability, the navigation performance and the economic performance of the ship. Three vibration modes exist in the running process of a ship shafting: torsional vibration, longitudinal vibration, and cyclotron vibration.
When a crankshaft and a propeller of a navigation main machine operate, a large torsional excitation moment is generated to cause torsional vibration, and serious torsional vibration can cause accidents such as breakage of a camshaft, the crankshaft and a middle shaft, fragmentation of an elastic element, cutting of a coupling screw and the like; the propeller acts with larger alternating longitudinal exciting force to enable the shafting to generate longitudinal vibration, which can cause the faults of the shafting, a transmission device, a diesel engine and the like, and induces the vertical vibration of the hull beam and the longitudinal vibration of the superstructure through the double-layer bottom or the thrust bearing; the unbalanced centrifugal force of the rotating mass and the exciting force of the eccentric mass cause the rotary vibration of the shafting, which causes the reduction of the fatigue life of the shaft and shafting parts, the fatigue of the shaft connecting piece and the damage of the supporting parts, the damage of the stern tube bearing and the abrasion of the sealing device.
The rotary vibration is one of the main reasons causing the failure of the propulsion shaft system, and the harmfulness is mainly shown in the following aspects: causing shafting resonance, causing serious heating and severe abrasion of a support bearing, particularly a stern shaft tube bearing; excessive bending stress is generated at the conical large end of the propeller shaft, and the cracks, the breakage and other damages of the conical large end are caused; the lubricating and sealing performance of the bearing is damaged, the transmission efficiency of a shaft system is reduced, and even accidents such as shaft cracking, shaft breaking and machine damage occur; causing the stern structure of the ship body to vibrate, so that the comfort is reduced. The traditional passive vibration reduction structure of the ship shafting is too simple, lacks of tracking and adjusting capability, depends on the general characteristics of external load and the dynamic characteristics of the structure, is more and more difficult to adapt to the development trend of large and complex ships, and can not meet the requirements of sailing ships in the utmost place. The intelligent polar ship shafting rotary vibration control device has the characteristics of instantaneity, traceability, predictability and the like, and can effectively make up for the defect of vibration reduction of the traditional shafting.
The magnetorheological damper technology is a new intelligent vibration reduction technology, has the excellent characteristics of simple structure, continuous and reversible adjustable damping force, large adjustable range, quick response, good temperature stability, capability of being combined with microcomputer control and the like, can effectively control the vibration of a high-speed running shaft system, and has good application prospect.
Therefore, aiming at the defects of the traditional passive vibration reduction technology of the ship shafting, the invention adopts the magneto-rheological damping technology to achieve the purpose of intelligent vibration reduction.
Disclosure of Invention
1. Technical problem to be solved
When the polar region ship sails under a complex sea condition, the excitation force applied to the rotary vibration of a ship shafting is more complex, and the traditional shafting passive vibration reduction cannot meet the vibration reduction requirement.
2. Technical scheme
In order to solve the above problems, the present invention provides an intelligent control device for polar ship shafting cyclotron vibration, comprising: permanent magnet, magnetorheological damping, coil, iron core, roller, rotor, stator. The permanent magnet and the magneto-rheological damper are positioned in the groove of the rotor, and the permanent magnet, the magneto-rheological damper and the rotor do not move relatively, namely the permanent magnet and the magneto-rheological damper are fixed in the rotor. The coil and the iron core are positioned in the stator and are slotted, and the coil and the iron core are fixed in the stator. The rotor exterior and the stator interior are provided with roller slots, and the rollers 5 are positioned in the roller slots.
The rotor is internally provided with a slot, a permanent magnet and a magnetorheological damper are arranged in the slot, and the permanent magnet, the magnetorheological damper and the rotor form a rotor system.
Preferably, the permanent magnet and the magneto-rheological damper are of annular structures, the shaft is completely wrapped by 360 degrees, and disturbance in any transverse direction is effectively guaranteed and can be effectively controlled.
Preferably, the permanent magnet is a neodymium iron boron permanent magnet, the neodymium iron boron permanent magnet has extremely high magnetic energy and coercive force, and the high energy density enables the neodymium iron boron permanent magnet to have good mechanical properties and high cost performance.
Preferably, the magnetorheological damper is a magnetorheological elastomer, and compared with magnetorheological fluid, the magnetorheological elastomer has the characteristics of controllability, reversibility, quick response and the like, and overcomes the problem of sedimentation stability of particles in the magnetorheological fluid, and a solid is more stable than a liquid and does not need to be sealed.
The stator is characterized in that a coil and an iron core are arranged in the groove inside the stator and fixed inside the stator, the coil and the iron core are annular, the coil is wound on the iron core, and the iron core plays a role in enhancing the magnetism of the coil.
The contact surface of the rotor and the stator is provided with a roller groove, the roller is positioned in the grooves in the rotor and the stator, sliding friction between the rotor and the stator is converted into rolling friction, and the rotating resistance of a shaft system is greatly reduced.
Preferably, the roller is a cylindrical roller, the cylindrical roller is high in bearing capacity, and the roller is suitable for a supporting structure of a large-scale shaft system and can effectively transfer radial loads. The number of the rollers is 18, and the rollers are uniformly distributed on the circumference to disperse the stress.
And the coil and the iron core in the stator and the permanent magnet and the magneto-rheological damper in the rotor form a closed magnetic loop.
The stator still includes the base part, and the base part adopts the damping structural style, and when shafting or inboard bottom plate received impact load, the base can be through the elastic deformation absorption energy of self, plays the cushioning effect, avoids impact force direct whole transmission to the ship bottom or shafting.
3. Advantageous effects
The polar ship shafting intelligent rotary vibration control device provided by the invention can effectively realize the control of the polar ship shafting rotary vibration by adopting the magneto-rheological damping technology, avoid the resonance and structural damage caused by the shafting rotary vibration and ensure the safe reliability of the ship sailing in the ice region.
Drawings
FIG. 1 is a schematic view of a shafting rotary vibration control device.
FIG. 2 is a schematic cross-sectional view of a shafting rotary vibration control device.
FIG. 3 is a schematic view of the inside of the shafting cyclotron vibration control apparatus.
FIG. 4 is a schematic view of a closed magnetic circuit of the shafting cyclotron vibration control device.
Description of reference numerals: the permanent magnet magnetorheological damper comprises a permanent magnet 1, a magnetorheological damper 2, a coil 3, an iron core 4, a roller 5, a rotor 6 and a stator 7.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the polar ship shafting cyclotron vibration intelligent control device provided by the invention is positioned at a stern shaft of a ship shafting, and is used for effectively controlling cyclotron vibration caused by propeller excitation force at a cantilever beam structure.
As shown in fig. 2 and 3, the polar ship shafting cyclotron vibration intelligent control device includes: the permanent magnet magnetorheological damper comprises a permanent magnet 1, a magnetorheological damper 2, a coil 3, an iron core 4, a roller 5, a rotor 6 and a stator 7. The permanent magnet 1 and the magneto-rheological damper 2 are positioned in the groove of the rotor 6, and the permanent magnet 1 and the magneto-rheological damper 2 are fixed in the rotor 6. The coil 3 and the iron core 4 are positioned in the stator 7 and are grooved, and the coil 3 and the iron core 4 are fixed in the stator 7. The rotor 6 and the stator 7 are provided with roller grooves, and the rollers 5 are positioned in the roller grooves.
The rotor system comprises a rotor 6, a shaft system and a rotor system, wherein a slot is formed in the rotor 6, a permanent magnet 1 and a magneto-rheological damper 2 are arranged in the slot, the permanent magnet 1, the magneto-rheological damper 2 and the rotor 6 form the rotor system, the rotor system rotates with the shaft system through interference connection, the shaft system is continuous and complete in the interference connection mode, the structure of the shaft system cannot be damaged, the shaft is prevented from being broken due to stress concentration, and the rotor system and the shaft system which are connected in the interference connection mode are mutually fixed to form a whole.
Preferably, the permanent magnet 1 and the magnetorheological damper 2 are in an annular structure, the permanent magnet 1 is a neodymium iron boron permanent magnet, the neodymium iron boron permanent magnet has extremely high magnetic energy and coercive force, and the high energy density enables the neodymium iron boron permanent magnet to have good mechanical properties and high cost performance. The magnetorheological damper 2 is a magnetorheological elastomer, and compared with the magnetorheological fluid, the magnetorheological elastomer not only has the characteristics of controllability, reversibility, quick response and the like, but also overcomes the problem of sedimentation stability of particles in the magnetorheological fluid, and the solid is more stable than the liquid and does not need to be sealed.
Be equipped with coil 3 and iron core 4 in the inside fluting of stator 7, inside coil 3 and iron core 4 were fixed in stator 7, coil 3 and iron core 4 all were cyclic annular, and coil 3 twines on iron core 4.
Preferably, the coil 3 is an excitation coil, and the coil is wrapped with an insulating layer, when a current passes through the coil 3, an electromagnetic field is formed around the coil, and the field intensity direction of the generated electromagnetic field is the same as that of the permanent magnet 1. The iron core 4 serves to enhance the magnetic field.
The contact surface of the rotor 6 and the stator 7 is provided with a roller groove, the roller 5 is positioned in the grooves of the rotor 6 and the stator 7, the sliding friction between the rotor 6 and the stator 7 is converted into rolling friction, and the rotating resistance and the rotating torque of a shaft system are greatly reduced.
Preferably, the roller 5 is a cylindrical roller, and is made of GCr15 alloy steel, and GCr15 alloy steel has the advantages of high hardness, good wear resistance, difficulty in fatigue failure, good impact toughness and the like, and can meet the requirement of a large-scale shafting with high rotating speed.
The base part of the stator 7 is of a zigzag structure as shown in fig. 1 and fig. 2, and when an impact load is applied to a shafting or an in-ship baseplate, the base can absorb energy through elastic deformation of the base, so that a buffering effect is achieved, and the impact force is prevented from being directly and completely transmitted to the ship bottom or the shafting.
When the polar ship shafting rotary vibration intelligent control device generates rotary vibration on the shafting, the induction device immediately responds to the rotary vibration and transmits the signal to the excitation coil 3, the excitation coil 3 generates current and responds to change a magnetic field, and when the offset direction is vertical to the magnetic field direction, the magnetorheological elastomer 2 is subjected to a shearing action; when the offset direction is consistent with the magnetic field direction, the magnetorheological elastomer 2 is under tension and compression. The action form of the magnetorheological elastomer is changed through the magnetic field, so that limited damping force is generated by the rotary vibration between the rotor 6 and the stator 7, effective control is performed, and the normal operation state is recovered. The vibration generated by the shafting is transmitted to the stator 7 through the rotor 6, the stator 7 absorbs partial energy through the square-shaped vibration reduction structure of the base, and the rest part of the energy is transmitted to the ship bottom structure, so that the vibration of the ship is effectively controlled. The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical solution according to the technical idea of the present invention fall within the protection scope of the present invention. The technology not related to the invention can be realized by the prior art.
Claims (8)
1. The utility model provides a polar region boats and ships shafting vibration intelligent control device that circles round which characterized in that: including permanent magnet (1), magnetic current becomes damping (2), coil (3), iron core (4), roller (5), rotor (6), stator (7), permanent magnet (1), magnetic current becomes damping (2) and is located the inslot portion of rotor (6), and does not have relative motion between permanent magnet (1), magnetic current becomes damping (2) and rotor (6), and permanent magnet (1) and magnetic current becomes damping (2) and is fixed in inside rotor (6) promptly, coil (3), iron core (4) are located the inside fluting of stator (7), coil (3), iron core (4) are fixed in inside stator (7), and rotor (6) outside and stator (7) inside are opened there is the roller groove, and roller (5) are located the roller inslot.
2. The polar vessel shafting cyclotron vibration intelligent control device of claim 1, wherein: the permanent magnet (1), the magnetorheological damper (2) and the rotor (6) form a rotor system.
3. The polar vessel shafting cyclotron vibration intelligent control device of claim 1, wherein: and a closed magnetic loop is formed by the coil (3) in the stator (7), the iron core (4), the permanent magnet (1) in the rotor (6) and the magneto-rheological damper (2).
4. The polar vessel shafting cyclotron vibration intelligent control device of claim 1, wherein: the permanent magnet (1) and the magneto-rheological damper (2) are of annular structures and completely wrap the shaft by 360 degrees.
5. The polar vessel shafting cyclotron vibration intelligent control device of claim 1, wherein: the permanent magnet (1) is made of neodymium iron boron permanent magnet.
6. The polar vessel shafting cyclotron vibration intelligent control device of claim 1, wherein: the magneto-rheological damper (2) is a magneto-rheological elastomer.
7. The intelligent polar ship shafting rotary vibration control device as claimed in any one of claims 1 to 6, wherein: the coil (3) and the iron core (4) are both annular, and the coil (3) is wound on the iron core (4).
8. The intelligent polar ship shafting rotary vibration control device as claimed in any one of claims 1 to 6, wherein: the roller (5) is a cylindrical roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335052.6A CN112539243A (en) | 2020-11-24 | 2020-11-24 | Polar region ship shafting vibration intelligent control device that circles round |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011335052.6A CN112539243A (en) | 2020-11-24 | 2020-11-24 | Polar region ship shafting vibration intelligent control device that circles round |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112539243A true CN112539243A (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011335052.6A Pending CN112539243A (en) | 2020-11-24 | 2020-11-24 | Polar region ship shafting vibration intelligent control device that circles round |
Country Status (1)
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| CN (1) | CN112539243A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962538A (en) * | 2022-06-22 | 2022-08-30 | 招商局金陵船舶(江苏)有限公司 | Shaft system vibration damping structure and vibration damping method for roll-on-roll-off ship |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336691A (en) * | 2002-05-21 | 2003-11-28 | Shin Sangyo Gijutsu Kenkyusho:Kk | Variable magnetic damper |
| CN101220845A (en) * | 2008-01-23 | 2008-07-16 | 重庆大学 | Engine vibration isolation system based on combined suspension and its control method |
| CN102878237A (en) * | 2012-10-23 | 2013-01-16 | 上海交通大学 | Combined intelligent magnetorheological elastomer vibration absorber for ship shafting longitudinal vibration |
| DE102014007956A1 (en) * | 2014-05-26 | 2015-11-26 | Audi Ag | rotary damper |
| CN106996871A (en) * | 2017-04-07 | 2017-08-01 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Real yardstick marine propulsion shafting vibration transmissibility experimental rig |
| CN107763131A (en) * | 2017-11-16 | 2018-03-06 | 北京化工大学 | A kind of magnetic rheology elastic body actuator suppressed for oscillation of rotary machine rotor |
| CN108488300A (en) * | 2018-03-28 | 2018-09-04 | 江苏海事职业技术学院 | Naval vessel shafting semi-active vibration control device |
| CN109739275A (en) * | 2019-01-03 | 2019-05-10 | 武汉理工大学 | A kind of two-way active electromagnetic control system for marine propulsion shafting vibration |
| CN111550522A (en) * | 2020-05-19 | 2020-08-18 | 集美大学 | Ship propulsion shafting with high static and low dynamic stiffness oscillator periodic structure |
-
2020
- 2020-11-24 CN CN202011335052.6A patent/CN112539243A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003336691A (en) * | 2002-05-21 | 2003-11-28 | Shin Sangyo Gijutsu Kenkyusho:Kk | Variable magnetic damper |
| CN101220845A (en) * | 2008-01-23 | 2008-07-16 | 重庆大学 | Engine vibration isolation system based on combined suspension and its control method |
| CN102878237A (en) * | 2012-10-23 | 2013-01-16 | 上海交通大学 | Combined intelligent magnetorheological elastomer vibration absorber for ship shafting longitudinal vibration |
| DE102014007956A1 (en) * | 2014-05-26 | 2015-11-26 | Audi Ag | rotary damper |
| CN106996871A (en) * | 2017-04-07 | 2017-08-01 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Real yardstick marine propulsion shafting vibration transmissibility experimental rig |
| CN107763131A (en) * | 2017-11-16 | 2018-03-06 | 北京化工大学 | A kind of magnetic rheology elastic body actuator suppressed for oscillation of rotary machine rotor |
| CN108488300A (en) * | 2018-03-28 | 2018-09-04 | 江苏海事职业技术学院 | Naval vessel shafting semi-active vibration control device |
| CN109739275A (en) * | 2019-01-03 | 2019-05-10 | 武汉理工大学 | A kind of two-way active electromagnetic control system for marine propulsion shafting vibration |
| CN111550522A (en) * | 2020-05-19 | 2020-08-18 | 集美大学 | Ship propulsion shafting with high static and low dynamic stiffness oscillator periodic structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962538A (en) * | 2022-06-22 | 2022-08-30 | 招商局金陵船舶(江苏)有限公司 | Shaft system vibration damping structure and vibration damping method for roll-on-roll-off ship |
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