CN106128230B - A kind of experiment ship measuring ship longitudinal bending stress - Google Patents
A kind of experiment ship measuring ship longitudinal bending stress Download PDFInfo
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- CN106128230B CN106128230B CN201610529770.4A CN201610529770A CN106128230B CN 106128230 B CN106128230 B CN 106128230B CN 201610529770 A CN201610529770 A CN 201610529770A CN 106128230 B CN106128230 B CN 106128230B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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Abstract
The invention discloses a kind of experiment ships for measuring ship longitudinal bending stress, including the asthenic main hull being located on support frame, guide rail is equipped on the floor of asthenic main hull, a pair of of counter weight device is installed on guide rail, several foil gauges are uniformly posted on asthenic main hull, foil gauge is connect by conducting wire with resistance strain gauge, and resistance strain gauge is connect by amplifier with display, and packaged type buoyant device is equipped with below asthenic main hull；When simulating the hogging test of ship, counter weight device is located at the both ends of asthenic main hull, packaged type buoyant device is located at the middle part of asthenic main hull, when simulating vertical test in ship, counter weight device is located at the centre of asthenic main hull, and packaged type buoyant device is located at the both ends of asthenic main hull.The present invention is combined with theory teaching, can deepen the understanding to hull beam and longitudinal bending stress distribution law of student with simpler intuitive.
Description
Technical field
The present invention relates to the experiment ships of measurement ship longitudinal bending stress, belong to experimental teaching field.
Background technique
Hull structural strength is the science for studying Ship Structure safety.The safety of so-called structure refers to that structure can be born
The various load and Load Effects being likely to occur in normal construction and normal use, and incident occur when and generation
Afterwards, still it is able to maintain required overall stability.In addition, structure is in normal use, it is necessary to be suitble to the requirement of operation, and just
Under the conditions of normal maintenance, there is enough durabilities.In general, Hull Strength is divided into overall strength and local strength to grind
Study carefully.Firstly, the hollow thin-wall beam (call hull beam) that hull is floated as one, studies its deformation rule on the whole and supports
The ability of collapse resistance, commonly referred to as overall strength.Since ship is mainly buckling deformation, so for a long time, overall strength is exactly
Study hull beam buckling problem.The bending that hull beam is occurred along its longitudinal plummet face under external force, it is referred to as total vertical
Bending.Hull beam resists the ability of longitudinal bending, referred to as longitudinal strength.Wherein typicalness is that hogging is hung down in.When ship exists
In the case where zero load, since bow stern is heavier and middle part is lighter, there is the case where hogging, we can use counter weight device for pressure
It is applied to bow stern, while using mobile buoyant device, buoyancy being applied in the middle part of ship, to realize in simulation ship
Arch.When ship under full-load conditions, middle part is heavier and bow stern is relatively light at this time, situation about hanging down in appearance, we can benefit
Middle part is applied pressure to counter weight device, while using mobile buoyant device, buoyancy is applied to ship bow stern, thus real
It now simulates in ship and hangs down.By increasing foil gauge on hull, to measure the variation of ship various pieces stress, make to learn
Life can be more vivid the concept for understanding hull beam.
In daily teaching, mainly based on theory deduction, and through experimental teaching, it can be added with simpler intuitive
The understanding to hull beam and longitudinal bending stress distribution law of deep student.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of measurement ship longitudinal bending
The experiment ship of stress, combines with theory teaching, it is curved can to deepen to hull beam and always indulging for student with simpler intuitive
The understanding of the transverse stress regularity of distribution.
Technical solution: in order to solve the above technical problems, a kind of research ship of measurement ship longitudinal bending stress of the invention
Oceangoing ship is equipped with guide rail on the floor of asthenic main hull, pacifies on guide rail including the asthenic main hull being located on support frame
Equipped with a pair of of counter weight device, counter weight device can be slided along guide rail, several foil gauges are uniformly posted on asthenic main hull, are answered
Become piece to connect by conducting wire with resistance strain gauge, resistance strain gauge is connect by amplifier with display, in asthenic main hull
Lower section is equipped with packaged type buoyant device；When simulating the hogging test of ship, counter weight device is located at the two of asthenic main hull
End, packaged type buoyant device are located at the middle part of asthenic main hull, and when simulating vertical test in ship, counter weight device is located at
The centre of asthenic main hull, packaged type buoyant device are located at the both ends of asthenic main hull.
Preferably, the counter weight device is iron block.
Preferably, the guide rail is " mountain " shape guide rail, counter weight device bottom is equipped with groove, and groove is adapted to guide rail,
Counter weight device is equipped with clamping screw, makes the head of clamping screw withstand guide rail by turning clamping screw, so that locking is matched
Refitting is set.
Preferably, the packaged type buoyant device includes several gag lever posts and air bag, the installation of several gag lever posts
In the bottom of asthenic main hull, gag lever post is installed along the vertical direction of guide rail, and the air bag is connect with air-bag support, air bag branch
Frame is equipped with limit hole, and air-bag support is inserted into gag lever post by limit hole, and air bag is connect by gas tube with air pump.
Preferably, the air-bag support is made of the material that density is less than water.
Preferably, the guide rail is equipped with scale, the scale of guide rail is zero at asthenic main hull center.
The utility model has the advantages that the experiment ship of measurement ship longitudinal bending stress of the invention, has the advantage that
1., since bow stern is heavier and middle part is lighter, there is the case where hogging when ship is in the case where zero load, when simulation ship
When the case where oceangoing ship hogging, experimental provision is put in water by we, and the iron block in counter weight device is placed in bow stern along track,
It is realized and is fixed by clamping screw, while packaged type buoyant device, buoyant device is placed in the middle part of ship, gas is then passed through
It pumps and is inflated to air bag, to provide buoyancy, buoyancy is applied in the middle part of ship, to realize the hogging of simulation ship.Pass through resistance
The strain stress that deformeter reads at ship everywhere foil gauge show that the stress at each foil gauge is big by formula σ=E* ε
It is small, i.e. σ.
2. working as ship under full-load conditions, bow stern is relatively light and heavier at midship at this time, situation about hanging down in appearance,
When simulating situation about hanging down in ship, experimental provision is put in water by we, and the iron block in counter weight device is placed along track
In the middle part of ship, is realized and fixed by clamping screw, while packaged type buoyant device, buoyant device is placed in ship bow stern
Then buoyancy is applied to ship bow stern to provide buoyancy by air-pump inflating by portion, hang down in simulation ship to realize.
It is obtained at each foil gauge by the strain stress that resistance strain gauge is read at ship everywhere foil gauge by formula σ=E* ε
Stress intensity, i.e. σ.
To sum up, it is each to measure ship by experiment for the experiment ship of a kind of measurement ship longitudinal bending stress of the invention
Partial stress intensity, thus make student it is more deep understanding Ship Longitudinal bending stress along captain and moldeed depth directional spreding
Rule, to keep teaching more vivid.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is Fig. 1 top view；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is the A-A sectional view of Fig. 2；
Fig. 5 is the B-B sectional view of Fig. 1；
Fig. 6 is air-bag support schematical top view；
Fig. 7 is simulation hogging lab diagram；
Fig. 8 is experiment schematic diagram；
Fig. 9 is the schematic diagram of air bag unaerated.
Specific embodiment
As shown in Figures 1 to 9, the experiment ship of a kind of measurement ship longitudinal bending stress of the invention, including it is located at branch
Asthenic main hull 8 and semi-enclosed deck 5 on support, asthenic main hull 8 are located in sink, and asthenic main hull 8 is adopted
With low-intensity steel, such as AH32, guide rail 1 is equipped on the floor of asthenic main hull, the guide rail 1 is equipped with scale,
The scale of guide rail 1 is zero at 8 center of asthenic main hull, and guide rail 1 uses low-intensity steel, such as AH32, and low-intensity steel have easily
The characteristics of deformation.A pair of of counter weight device 2 is installed on guide rail 1, counter weight device 2 is preferably iron block, and counter weight device 2 can be along guide rail
1 sliding, uniformly posts several foil gauges 9 on asthenic main hull 8, and foil gauge 9 is connected by conducting wire 6 and resistance strain gauge
It connects, resistance strain gauge is connect by amplifier with display, and packaged type buoyant device 3 is equipped with below asthenic main hull 8；
When simulating the hogging test of ship, counter weight device 2 is located at the both ends of asthenic main hull 8, and packaged type buoyant device 3 is located at
The middle part of asthenic main hull 8, when simulating vertical test in ship, counter weight device 2 is located at the centre of asthenic main hull 8,
Packaged type buoyant device 3 is located at the both ends of asthenic main hull 8.
In the present invention, the guide rail 1 is " mountain " shape guide rail 1, and 2 bottom of counter weight device is equipped with groove, and groove and guide rail 1 are suitable
Match, clamping screw 2-1 is equipped on counter weight device 2, by turning clamping screw 2-1 the head of clamping screw 2-1 is withstood
Guide rail 1, to lock counter weight device 2.By moving left and right for counter weight device 2, simulate 8 hogging of asthenic main hull or in hang down
Stress distribution.
In the present invention, the packaged type buoyant device 3 includes several gag lever posts 4 and air bag 3-1, several limits
Bar 4 is mounted on the bottom of asthenic main hull 8, and gag lever post 4 is installed along the vertical direction of guide rail 1, the air bag 3-1 and air bag branch
Frame 3-4 connection, air-bag support 3-4 are equipped with limit hole 3-2, and air-bag support 3-4 is inserted into gag lever post 4 by limit hole 3-2,
Air bag 3-1 is connect by gas tube 7 with air pump.The air-bag support 3-4 is made of the material that density is less than water, preferably small close
The timber of degree.Using small density material, one can provide bigger buoyancy, secondly in the case where air bag 3-1 unaerated
It can float in water, air bag 3-1 can be made to be close to ship hull plate always, movable type buoyant device will not when putting experimental provision
It moves up and down, conducive to putting for experimental provision, air bag 3-1 is made by rubber, air bag 3-1 and air-bag support 3-4 super glue
(such as 502) are fixed.Aeration aperture 3-3 is arranged at the lower part air bag 3-1, is connect by gas tube with air pump.
When being tested, main analog hogging is hung down in.When ship is in the case where zero load, due to bow stern it is heavier and in
Portion is lighter, the case where hogging occurs, and when simulating ship hogging the case where, experimental provision is put in water by we, will be with refitting
The iron block set in 2 is placed in bow stern along track, is realized and is fixed by clamping screw, while buoyant device is placed in ship
Then middle part is inflated by air pump to air bag 3-1, to provide buoyancy, buoyancy is applied in the middle part of ship, to realize simulation ship
The hogging of oceangoing ship.The strain stress at ship everywhere foil gauge 9 is read by resistance strain gauge, by formula σ=E* ε, is obtained each
Stress intensity at foil gauge 9, i.e. σ.When ship under full-load conditions, bow stern is relatively light and heavier at midship at this time,
Situation about hanging down in appearance, when simulating situation about hanging down in ship, experimental provision is put in water by we, will be in counter weight device 2
Iron block is placed in the middle part of ship along track, is realized and is fixed by clamping screw 2-1, while packaged type buoyant device 3 being put
It is placed in ship bow stern, buoyancy is then applied to, to realize mould to provide buoyancy by ship bow stern by air-pump inflating
It hangs down in quasi- ship.It is obtained by the strain stress that resistance strain gauge is read at ship everywhere foil gauge 9 by formula σ=E* ε
Stress intensity at each foil gauge 9 out, i.e. σ.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of experiment ship for measuring ship longitudinal bending stress, it is characterised in that: including the asthenic being located on support frame
Main hull is equipped with guide rail on the floor of asthenic main hull, a pair of of counter weight device is equipped on guide rail, counter weight device can
It is slided along guide rail, several foil gauges is uniformly posted on asthenic main hull, foil gauge is connected by conducting wire and resistance strain gauge
It connects, resistance strain gauge is connect by amplifier with display, and packaged type buoyant device is equipped with below asthenic main hull, can
Mobile buoyant device includes several gag lever posts and air bag, several gag lever posts are mounted on the bottom of asthenic main hull, is limited
Position bar is installed along the vertical direction of guide rail, and the air bag is connect with air-bag support, and air-bag support is equipped with limit hole, air-bag support
It is inserted into gag lever post by limit hole, air bag is connect by gas tube with air pump；When simulating the hogging test of ship, counterweight
Device is located at the both ends of asthenic main hull, and packaged type buoyant device is located at the middle part of asthenic main hull, when simulation ship
In hang down test when, counter weight device is located at the centre of asthenic main hull, and packaged type buoyant device is located at asthenic main hull
Both ends；The guide rail is " mountain " shape guide rail, and counter weight device bottom is equipped with groove, and groove is adapted to guide rail, on counter weight device
Equipped with clamping screw, the head of clamping screw is made to withstand guide rail by turning clamping screw, to lock counter weight device.
2. the experiment ship of measurement ship longitudinal bending stress according to claim 1, it is characterised in that: described with refitting
It is set to iron block.
3. the experiment ship of measurement ship longitudinal bending stress according to claim 1, it is characterised in that: the air bag branch
Frame is made of the material that density is less than water.
4. the experiment ship of measurement ship longitudinal bending stress according to claim 1, it is characterised in that: on the guide rail
Equipped with scale, the scale of guide rail is zero at asthenic main hull center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529770.4A CN106128230B (en) | 2016-07-06 | 2016-07-06 | A kind of experiment ship measuring ship longitudinal bending stress |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610529770.4A CN106128230B (en) | 2016-07-06 | 2016-07-06 | A kind of experiment ship measuring ship longitudinal bending stress |
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| Publication Number | Publication Date |
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| CN106128230A CN106128230A (en) | 2016-11-16 |
| CN106128230B true CN106128230B (en) | 2019-09-03 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109410731A (en) * | 2017-08-15 | 2019-03-01 | 上海船厂船舶有限公司 | Vessel coating training model |
| CN108240881A (en) * | 2018-01-05 | 2018-07-03 | 哈尔滨工程大学 | A kind of overall longitudinal strength of hull stress monitoring method |
| CN109406027B (en) * | 2018-10-22 | 2020-11-03 | 哈尔滨工程大学 | Ship docking maintenance aid decision-making method |
| CN110987398B (en) * | 2019-12-19 | 2021-06-18 | 哈尔滨工程大学 | Stay cable bridge type cabin total longitudinal bending strength experiment method and special device |
| CN111547203A (en) * | 2020-05-28 | 2020-08-18 | 中国船舶工业集团公司第七0八研究所 | Modular-design inland river small-sized lithium battery power ship and construction method |
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| CN102039982A (en) * | 2009-10-20 | 2011-05-04 | 小池造船海运株式会社 | Ballast-free ship |
| CN102107657A (en) * | 2009-12-24 | 2011-06-29 | 崔龙浩 | Hovercraft with flowing ballasting structure that can automatically adjust draft |
| KR20130052368A (en) * | 2011-11-11 | 2013-05-22 | 현대중공업 주식회사 | Roll-pitch motion control systems for testing model ship |
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Effective date of registration: 20211220 Address after: 225453 Hongqiao Industrial Park, Taixing City, Taizhou City, Jiangsu Province Patentee after: JIANGSU YANGZIXINFU SHIPBUILDING Co.,Ltd. Address before: 212003, No. 2, Mengxi Road, Zhenjiang, Jiangsu Patentee before: JIANGSU University OF SCIENCE AND TECHNOLOGY |