CN106932131A - A kind of measurement apparatus and measuring method of catamaran transverse bending moment - Google Patents
A kind of measurement apparatus and measuring method of catamaran transverse bending moment Download PDFInfo
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- CN106932131A CN106932131A CN201710062047.4A CN201710062047A CN106932131A CN 106932131 A CN106932131 A CN 106932131A CN 201710062047 A CN201710062047 A CN 201710062047A CN 106932131 A CN106932131 A CN 106932131A
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- catamaran
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
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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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- Engineering & Computer Science (AREA)
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- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
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Abstract
The invention discloses a kind of measurement apparatus of catamaran transverse bending moment, the catamaran is by the first hull, second hull and connecting bridge are constituted, connecting bridge is connected respectively with the first hull and the second hull, first hull is located in the first tank, first dividing plate is installed in the first tank, first dividing plate is located at the centre of the first tank, two cowling panels are installed perpendicular to dividing plate in the first tank, first tank is divided into inhalant region by two cowling panels and the first dividing plate, commutating zone and exhalant region, first hull is located in commutating zone, the first water pump is installed in one end of the first tank；Transverse bulkhead on the first hull is in contact position patch foil gauge with connecting bridge, and foil gauge is connected by wire with charge amplifier, and charge amplifier is connected with multi-channel information Acquisition Instrument and computer successively.The present invention is different by the volume of the water in each tank, and simulation lamellar body is respectively at crest and trough, can simulate different wave height by controlling its relative altitude.
Description
Technical field
The present invention relates to the measurement apparatus and measuring method of catamaran transverse bending moment, belong to the fields of measurement of catamaran
Background technology
At present external load calculation, Finite Element Numerical Simulation or towing water are concentrated mainly on for the research of catamaran transverse bending moment
Carry out ship model wave load experiment in pond.First two is based substantially on theoretical calculation, and student can not be allowed to carry out intuitively during giving lessons
Observation and actual hands-on, there is certain defect for deepening study impression aspect；Latter is due to needing to have
Certain experimental condition, the towing basin built in current colleges and universities is simultaneously few, and its experimentation cost is than larger in addition, in teaching process
In have some limitations, therefore be not suitable for demonstrating student during giving lessons.Due to above objective factor, at present
The discussion of external force of the catamaran under athwart sea state is simply listed in teaching process, lacks economy, intuitively teaching experiment
Equipment allows student to take action on one's own operation so as to obtain deep understanding.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention to provide a kind of catamaran transverse bending moment
Measurement apparatus and measuring method, the volume by the water in each tank are different, and simulation lamellar body is respectively at crest and trough, can
Simulating different wave height by controlling its relative altitude, and simulated under different waves with the use of water pump, water speed instrument
Corresponding water velocity, so as to simulate the transverse bending moment that catamaran is subject to, makes experiment true, easily observation, with convincingness.
Technical scheme：To achieve the above object, the measurement apparatus of catamaran transverse bending moment of the invention, the catamaran is by
One hull, the second hull and connecting bridge composition, connecting bridge are connected respectively with the first hull and the second hull, the first hull position
In the first dividing plate in the first tank, is provided with the first tank, the first dividing plate is located at the centre of the first tank, in the first tank
Interior to be provided with two cowling panels perpendicular to dividing plate, the first tank is divided into inhalant region, commutating zone by two cowling panels and the first dividing plate
And exhalant region, the first hull is provided with the first water speed instrument in commutating zone in commutating zone, in one end installation of the first tank
Have the first water pump, the first water pump is connected with water inlet pipe and outlet pipe, water inlet pipe and outlet pipe respectively positioned at the both sides of dividing plate, the
First flowmeter is installed on one water pump；The second ship body be located at the second tank in, be provided with the second tank second every
Plate, second partition is located at the centre of the second tank, and two cowling panels, two are provided with perpendicular to second partition in the second tank
Second tank is divided into inhalant region, commutating zone and exhalant region by cowling panel and second partition, and second ship body is located in commutating zone, whole
Stream is provided with the second water speed instrument in area, and the second water pump, the second water pump and water inlet pipe and water outlet are provided with one end of the second tank
Pipe is connected, and water inlet pipe and outlet pipe are provided with second flowmeter respectively positioned at the both sides of second partition on the second water pump；
Transverse bulkhead on one hull is in contact position patch foil gauge with connecting bridge, and foil gauge is connected by wire with charge amplifier, electric
Lotus amplifier is connected with multi-channel information Acquisition Instrument and computer successively.
Preferably, first tank and the second tank are provided with several osculums along depth direction.
A kind of measuring method of the measurement apparatus of above-mentioned catamaran transverse bending moment, comprises the following steps：
(1) according to requirement of experiment, the first tank and the second tank are installed, dividing plate and cowling panel is inserted respectively into
In first tank and the second tank, the water of equivalent is injected to the first tank and the second tank；
(2) the first tank and the second tank are opened, allows the water circulation of the first tank and the second tank flow, by adjusting the
The horsepower of one water pump and the second water pump obtains the water velocity for needing, while ensureing the measurement of the first water speed instrument and the second water speed instrument
Numerical value is identical, and the horsepower numerical value on the first water pump and the second water pump is now recorded respectively；
(3) catamaran is put into the first tank and the second tank, adjusts hull balance, then one of which tank
It is interior to add a certain amount of water, and read its numerical value, corresponding water pump is now opened, horsepower used in step (2) is adjusted to, see
Whether the measured value for examining each water speed instrument is identical, if difference is finely adjusted again, it is ensured that its numerical value is identical, and last observation experiment shows
As, and carry out arrangement experimental data.
First inject the water of equivalent during experiment in two tanks respectively, record its numerical value, switch on the pump, make water circulation stream
It is dynamic.The water velocity near it is measured with water speed instrument simultaneously, each water speed instrument is ensured by the size for adjusting two water pump horsepower
Measured value it is identical, record the horsepower size of water pump, convenient adjustment during so as to secondary switching on the pump.Now switch off the pump, by ship
Mould is put into water tank, adjusts the balance of ship model, and water is individually added into one of which lamellar body water tank after balance, makes two to hold
The glass water tank of lamellar body forms a difference in height for water, a lamellar body is simulated with this and is located at trough positioned at crest, a lamellar body.
Then, water pump is reopened, ensures that the flow velocity that water speed instrument is measured is identical by finely tuning, the water in simulated waves by water is come with this
Dynamic pressure.Now because the cross direction profiles of the gravity of hull, lamellar body buoyancy, hydrodynamic pressure are different, ship is meeting poised state
During, heeling motion is produced, the transverse beam of hull is produced transverse bending moment during heel.
Proved according to many experiments, transverse bulkhead is area of stress concentration with connecting bridge connecting place, therefore pastes foil gauge in an experiment
When foil gauge be attached to transverse bulkhead and connecting bridge connection, the transverse bending moment being subject to herein is maximum, so can make measured value more
It is good sensitive and obvious.
Beneficial effect：Compared with prior art, the present invention has advantages below：
(1) this experimental provision is a kind of device for measuring catamaran transverse direction bending moment, as the experimental provision in teaching, is passed through
The volume of the water in each tank is different, and simulation lamellar body is respectively at crest and trough, can by control its relative altitude come
The different wave height of simulation, so as to simulate the transverse bending moment that catamaran is subject to, makes experiment true, easily observation, with convincingness.
(2) existing transverse bending moment numerical computation method and software are based only on theory, understand that comparing of getting up is abstract, and this
Experimental provision can make student understand the general principle that ship produces the basic cause and transverse bending moment of transverse bending moment to occur, in reality
Test middle ship model and produce transverse bending moment, student can be made to have a visual understanding to the transverse bending moment problem of catamaran and understand.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, the measurement apparatus of catamaran transverse bending moment of the invention, the catamaran is by the first hull 5, second ship
Body 11 and connecting bridge are constituted, and connecting bridge is connected respectively with the first hull 5 and the second hull 11, and first hull 5 is located at first
In tank, the first dividing plate 3 is installed in the first tank, the first dividing plate 3 is located at the centre of the first tank, is hung down in the first tank
It is straight that two cowling panels 4 are installed in dividing plate, two dividing plates 3 of cowling panel 4 and first by the first tank be divided into inhalant region, commutating zone and
Exhalant region, commutating zone is U-shape, and the first hull 5 is located in commutating zone, the first water speed instrument is provided with commutating zone, first
One end of tank is provided with the first water pump 1, and the first water pump 1 is connected with water inlet pipe and outlet pipe, and water inlet pipe and outlet pipe distinguish position
In the both sides of dividing plate, first flowmeter is installed on the first water pump 1；Second hull 11 is located in the second tank 12,
Second partition 10 is installed, second partition 10 is located at the centre of the second tank 12, is hung down in the second tank 12 in second tank 12
It is straight that two cowling panels 4 are installed in second partition 10, two cowling panels 4 and second partition 10 by the second tank 12 points be water inlet
Area, commutating zone and exhalant region, the second hull 11 are located in commutating zone, the second water speed instrument are provided with commutating zone, in the second water
One end of groove 12 is provided with the second water pump 2, and the second water pump 2 is connected with water inlet pipe and outlet pipe, and water inlet pipe and outlet pipe distinguish position
In the both sides of second partition 10, second flowmeter is installed on the second water pump 2, first tank and the second tank 12 are along depth
Degree direction is provided with several osculums；Transverse bulkhead on the first hull 5 be in contact with connecting bridge position patch foil gauge 9, should
Become piece 9 to be connected with charge amplifier 6 by wire, charge amplifier 6 connects with multi-channel information Acquisition Instrument 7 and computer 8 successively
Connect.
A kind of measuring method of the measurement apparatus of above-mentioned catamaran transverse bending moment, comprises the following steps：
(1) according to requirement of experiment, the first tank and the second tank 12 are installed, dividing plate and cowling panel 4 is inserted respectively
Enter in the first tank and the second tank 12, the water of equivalent is injected to the first tank and the second tank 12；
(2) the first tank and the second tank 12 are opened, allows the water circulation of the first tank and the second tank 12 to flow, by adjusting
The horsepower for saving the first water pump 1 and the second water pump 2 obtains the water velocity for needing, while ensureing the first water speed instrument and the second water speed instrument
Measured value it is identical, the horsepower numerical value on the first water pump 1 and the second water pump 2 is now recorded respectively；
(3) catamaran is put into the first tank and the second tank 12, adjusts hull balance, then one of which water
A certain amount of water is added in groove, and reads its numerical value, now open corresponding water pump, be adjusted to horsepower used in step (2),
Whether the measured value for observing each water speed instrument is identical, if difference is finely adjusted again, it is ensured that its numerical value is identical, last observation experiment
Phenomenon, and carry out arrangement experimental data.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of measurement apparatus of catamaran transverse bending moment, the catamaran is made up of the first hull, the second hull and connecting bridge, even
Bridge is connect to be connected respectively with the first hull and the second hull, it is characterised in that：First hull is located in the first tank, first
First dividing plate is installed, the first dividing plate is located at the centre of the first tank, is provided with perpendicular to dividing plate in the first tank in tank
First tank is divided into inhalant region, commutating zone and exhalant region, the first hull position by two cowling panels, two cowling panels and the first dividing plate
In commutating zone, the first water speed instrument is installed in commutating zone, the first water pump, the first water pump are installed in one end of the first tank
It is connected with water inlet pipe and outlet pipe, water inlet pipe and outlet pipe are provided with first respectively positioned at the both sides of dividing plate on the first water pump
Flowmeter；The second ship body is located in the second tank, and second partition is provided with the second tank, and second partition is located at second
The centre of tank, two cowling panels are provided with the second tank perpendicular to second partition, and two cowling panels and second partition will
Second tank is divided into inhalant region, commutating zone and exhalant region, and second ship body is located in commutating zone, and the second water is provided with commutating zone
Fast instrument, the second water pump is provided with one end of the second tank, and the second water pump is connected with water inlet pipe and outlet pipe, water inlet pipe and water outlet
Pipe positioned at the both sides of second partition, second flowmeter is provided with the second water pump respectively；Transverse bulkhead on the first hull with
Connecting bridge is in contact position patch foil gauge, and foil gauge is connected by wire with charge amplifier, charge amplifier successively with it is more logical
Road information acquiring instrument and computer are connected.
2. measurement apparatus of catamaran transverse bending moment according to claim 1, it is characterised in that：First tank and
Two tanks are provided with several osculums along depth direction.
3. a kind of measuring method of the measurement apparatus of catamaran transverse bending moment as described in any one of claim 1, its feature exists
In comprising the following steps：
(1) according to requirement of experiment, the first tank and the second tank are installed, dividing plate and cowling panel is inserted respectively into first
In tank and the second tank, the water of equivalent is injected to the first tank and the second tank；
(2) the first tank and the second tank are opened, allows the water circulation of the first tank and the second tank to flow, by adjusting the first water
The horsepower of pump and the second water pump obtains the water velocity for needing, while ensureing the measured value of the first water speed instrument and the second water speed instrument
It is identical, the horsepower numerical value on the first water pump and the second water pump is now recorded respectively；
(3) catamaran is put into the first tank and the second tank, adjusts hull balance, then added in one of which tank
Enter a certain amount of water, and read its numerical value, now open corresponding water pump, be adjusted to horsepower used in step (2), observation is each
Whether the measured value of individual water speed instrument is identical, if difference is finely adjusted again, it is ensured that its numerical value is identical, last observation experiment phenomenon,
And carry out arrangement experimental data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710062047.4A CN106932131A (en) | 2017-01-30 | 2017-01-30 | A kind of measurement apparatus and measuring method of catamaran transverse bending moment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710062047.4A CN106932131A (en) | 2017-01-30 | 2017-01-30 | A kind of measurement apparatus and measuring method of catamaran transverse bending moment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106932131A true CN106932131A (en) | 2017-07-07 |
Family
ID=59423509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710062047.4A Withdrawn CN106932131A (en) | 2017-01-30 | 2017-01-30 | A kind of measurement apparatus and measuring method of catamaran transverse bending moment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106932131A (en) |
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2017
- 2017-01-30 CN CN201710062047.4A patent/CN106932131A/en not_active Withdrawn
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170707 |
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| WW01 | Invention patent application withdrawn after publication |