SU1070439A1 - Method of determination of attached mass of self-propelled vessel - Google Patents

Method of determination of attached mass of self-propelled vessel Download PDF

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Publication number
SU1070439A1
SU1070439A1 SU833530365A SU3530365A SU1070439A1 SU 1070439 A1 SU1070439 A1 SU 1070439A1 SU 833530365 A SU833530365 A SU 833530365A SU 3530365 A SU3530365 A SU 3530365A SU 1070439 A1 SU1070439 A1 SU 1070439A1
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USSR - Soviet Union
Prior art keywords
watercraft
mass
self
acceleration
liquid
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SU833530365A
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Russian (ru)
Inventor
Павел Александрович Саломатин
Алексей Павлович Степанов
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Московский Ордена Трудового Красного Знамени Автомобильно-Дорожный Институт
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Priority to SU833530365A priority Critical patent/SU1070439A1/en
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Abstract

СПОСОБ ОПРЕДЕЛЕНИЯ ПРИСОЕдаНЕННОЙ МАССЫ САМОХОДНОГО ПЛАВСРЕДСТВА , заключающийс  в нахождении разности между полной массой плавсредства в жидкости и его собственной массой, отличающийс  тем, что, с целью повыиени  точности измерений, полную массу плавсредства в жидкости определ ют как отношение т ги движителей к ускорению, дл  чего измер ют т гу движителей на швартовах , удержива  плавсредство какойлибо св зью от продольных перемещений , после чего указанную св зь сни ,мают и измер ют ускорение плавсредства . -А / d 4 СО СРA METHOD FOR DETERMINING THE ASSOCIATED MASS OF THE SELF-PROPELLED MOBILE, consisting in finding the difference between the full mass of the watercraft in a liquid and its own weight, characterized in that, in order to improve the accuracy of measurements, the total mass of the watercraft in the liquid is defined as the ratio of the thrusters to the acceleration, the movers are driven by mooring, keeping the craft by any connection from longitudinal displacements, after which the link is removed, worn and the acceleration of the craft is measured. -A / d 4 WITH SR

Description

Изобретение относитс  к техничестким средствам эксперимеНтальной гидромеханики судна, в частности к способам определени  гидродинамических характеристик плавучих средств и сооружений .The invention relates to technical means of experimental hydromechanics of a ship, in particular, to methods for determining the hydrodynamic characteristics of floating equipment and structures.

Известен способ определени  присоединенной массы самоходного плавсредства , заключающийс  в нахождении разности между полной массой , плавсредства в жидкости и его собственной массой 1.There is a known method for determining the added mass of a self-propelled watercraft, which consists in finding the difference between the total mass, the watercraft in the liquid and its own weight 1.

Недостатком известного способа  вл етс  его низка  точность вследствие малых величин ускорени , случайного вли ни  ветра и других факторов ,The disadvantage of this method is its low accuracy due to small values of acceleration, the accidental influence of wind and other factors

Цель изобретени  - повышение точности измерений.The purpose of the invention is to improve the measurement accuracy.

Указанна  цель достигаетс  тем, что согласно способу определени  присоединенной масса самоходного плавсредства, заключающемус  в нахождении разности между полной массой плавсредства в жидкости и его собственной массой, полную массу плавсредства в жидкости определ ют как отношение т ги движителей к ускорению ,, дл  чего измер ют т гу движителей на швартовах, удержива This goal is achieved by the fact that, according to the method for determining the attached mass of a self-propelled watercraft, which consists in finding the difference between the full mass of the watercraft in a liquid and its own weight, the total weight of the watercraft in a liquid is defined as the ratio of the thrust force to acceleration, for which gu movers on mooring hold

плавсредство какой-либо св зью от продольных перемещений, после чего указанную св зь снимают и измер ют ускорение плавсредства.the watercraft is in any connection from longitudinal movements, after which the connection is removed and the acceleration of the vessel is measured.

На чертеже представлена схема устройства дл .реализации предлагаемого способа.The drawing shows a diagram of the device for the implementation of the proposed method.

Самоходное плавсредство 1 с помощью св зи 2 соединено с берегом 3, причем в св зь 2 включены динамометрThe self-propelled watercraft 1 is connected by means of communication 2 with the coast 3, and in connection 2 the dynamometer is included

4и защелка.5. Кроме того, на плавсредстве 1 находитс  акселерометр б.4 and latch.5. In addition, the accelerometer is located on the watercraft 1 b.

После включени  движителей плавсредства 1 производ т замер т ги на швартовах с помощью динамометра 4, а затем св зь 2 снимают путем отдачи защелки 5. В момент отдачи защелкиAfter the propulsion of the floating device 1 is switched on, the tie rods are measured on the mooring lines with the help of a dynamometer 4, and then the connection 2 is removed by latch 5 being recovered. At the moment of latch release

5измер ют ускорение плавсредства 1 с помощью акселерометра б. Измеренные величины позвол ют вычислить полную массу плавсредства в жидкости . Присоединеннуюмассу жидкости наход т как разность между вычисленной полной массой и собственной массой плавсредства.5measure the acceleration of the craft 1 using an accelerometer b. Measured values allow the total weight of the craft to be calculated in the fluid. The attached mass of liquid is found as the difference between the calculated total mass and the intrinsic mass of the watercraft.

Предлагаемый способ позвол ет находить присоединенную массу плавсредства с повышенной точностью и уменьшить трудоемкость испытаний.The proposed method makes it possible to find the attached weight of the watercraft with increased accuracy and reduce the labor intensity of the tests.

Claims (1)

СПОСОБ ОПРЕДЕЛЕНИЯ ПРИСОЕДИНЕННОЙ МАССЫ САМОХОДНОГО ПЛАВ-METHOD FOR DETERMINING THE ATTACHED MASS OF SELF-PROPELLED PLAV- СРЕДСТВА, заключающийся в нахождении разности между полной массой плавсредства в жидкости и его собственной массой, отличающийся тем, что, с целью повышения точности измерений, полную массу плавсредства в жидкости определяют как отношение тяги движителей к ускорению, для чего измеряют тягу движителей на швартовах, удерживая плавсредство какойлибо связью от продольных перемещений, после чего указанную связь сни,мают и измеряют ускорение плавсредст ва. ' _MEANS, consisting in finding the difference between the total mass of the craft in the liquid and its own mass, characterized in that, in order to improve the accuracy of measurements, the total mass of the craft in the liquid is defined as the ratio of propulsion thrust to acceleration, for which the thrust of movers on moorings is measured, holding the watercraft by any connection from longitudinal displacements, after which the indicated connection is lifted, and the acceleration of the watercraft is measured. '_
SU833530365A 1983-01-04 1983-01-04 Method of determination of attached mass of self-propelled vessel SU1070439A1 (en)

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Application Number Priority Date Filing Date Title
SU833530365A SU1070439A1 (en) 1983-01-04 1983-01-04 Method of determination of attached mass of self-propelled vessel

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107014586A (en) * 2017-04-26 2017-08-04 哈尔滨工程大学 Intelligence is with ship seaworthiness instrument

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Павленко В.Г.Маневренные качества речных судов.М., Транспорт , 1979, с. 1-17 (прототип). *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107014586A (en) * 2017-04-26 2017-08-04 哈尔滨工程大学 Intelligence is with ship seaworthiness instrument

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