SU857747A1

SU857747A1 - Device for measuring wave and ice pressure

Info

Publication number: SU857747A1
Application number: SU772451168A
Authority: SU
Inventors: Баларза Алиманович Мамедов; Махмуд Фархад Оглы Курбанов; Расул Ахметович Мусаев
Original assignee: Научно-Исследовательский И Проектный Институт "Гипроморнефть"
Priority date: 1977-02-09
Filing date: 1977-02-09
Publication date: 1981-08-23

Description

Изобретение относится к измерительной технике и может быть использовано для измерения давления волн и льда, действующего на сваю.The invention relates to measuring technique and can be used to measure the pressure of waves and ice acting on a pile.

Известно устройство для измерения давления волн и льда, содержащее измерительную * балку с рабочей частью и укрепленными на ней тензорезйсторами [ 1 ].A device for measuring the pressure of waves and ice containing a measuring * beam with a working part and strain gauges mounted on it [1].

Недостатком такого устройства является его низкая надежность.The disadvantage of this device is its low reliability.

Цель изобретения - повышение надежности устройства для измерения давления волн и льда.The purpose of the invention is to increase the reliability of a device for measuring pressure waves and ice.

Поставленная цель достигается тем, что в устройстве измерительная балка установлена с возможностью поворота относительно; . вертикальной оси, а рабочая часть выполнена наклонной.This goal is achieved by the fact that in the device the measuring beam is mounted with the possibility of rotation relative to; . vertical axis, and the working part is made inclined.

На чертеже представлена схема одного из вариантов предлагаемого устройства.The drawing shows a diagram of one of the options for the proposed device.

Устройство содержит измерительную балку ²⁰1 с наклонной рабочей частью, на которой наклеены тензорезисторы 2 и укреплен рулевой элемент 3, представляющий собой плос2 кую металлическую пластину, в плоскости которой лежат ось рабочей части балки и линия, на которой расположены тензорезисторы 2. Нижняя часть балки входит в гнездо 4 железобетонного основания 5. Тензорезисторы 2 собраны в мостовые схемы и соединены с регистрирующей аппаратурой 6, находящейся в надводном приборном отсеке.The device comprises a measuring beam ²⁰ 1 with an inclined working part, on which the strain gages 2 are glued and the steering element 3 is fixed, which is a flat metal plate, in the plane of which the axis of the working part of the beam and the line on which the strain gages are located 2. The lower part of the beam is included in the socket 4 of the reinforced concrete base 5. The strain gauges 2 are assembled in bridge circuits and connected to the recording equipment 6, located in the surface of the instrument compartment.

Устройство работает следующим образом.The device operates as follows.

Измерительная балка 1 посредством рулевого элемента 3, работающего по принципу флюгера, устанавливается по направлению воздействия волн, В случае воздействия льда на рабочую часть измерительной балки 1, которую лед разворачивает в гнезде 4 основания 5 по линии наименьшего сопротивления, т.е. наклон рабочей части ее совпадает с направлением воздействия льда. В этом случае лед начинает наползать на наклонную часть балки 1, которая разрезает лед и изгибается на величину, зависящую от давления потока. Прогиб балки 1 измеряется тензорезисторами 2 и передается на регистрирующую аппаратуру 6.The measuring beam 1 by means of the steering element 3, operating on the principle of a weather vane, is installed in the direction of the waves. the slope of its working part coincides with the direction of ice exposure. In this case, the ice begins to creep onto the inclined part of the beam 1, which cuts the ice and bends by an amount depending on the pressure of the stream. The deflection of the beam 1 is measured by strain gauges 2 and transmitted to the recording equipment 6.

Выполнение предлагаемого устройства позволяет повысить его надежность, поскольку в данном случае лед, наползая на наклонную часть балки, предотвращает поломку последней.The implementation of the proposed device can improve its reliability, because in this case, ice, crawling on the inclined part of the beam, prevents breakage of the latter.

Claims

The invention relates to a measurement technique and can be used to measure the pressure of waves and ice acting on a pile. A device for measuring pressure of waves and ice is known, which contains a measuring beam with a working part and tensorstores 1 fixed to it. The disadvantage of such a device is its low reliability. The purpose of the invention is to increase the reliability of the device for measuring the pressure of waves and ice. The goal is achieved by the fact that in the device the measuring beam is installed rotatably with respect to:, the vertical axis, and the working part is made inclined. The drawing shows a diagram of one of the variants of the proposed device. The device contains a measuring beam 1 with an inclined working part on which the resistance strain gauges 2 are glued and the steering element 3 is fixed, which is a flat metal plate, in the plane of which the axis of the working part of the beam and the line on which the strain gauges are located

2. The lower part of the beam in;: is installed in the nest 4 of the reinforced concrete base 5. The resistance strain gages 2 are assembled into bridge circuits and connected to the recording equipment 6 located in the above-surface instrument compartment. The device works as follows. Measuring beam 1 by means of the steering element 3, which operates on the principle of a vane, is set in the direction of the will, g In the case of ice on the working part of the measuring beam 1, which ice unfolds in the nest 4 of the base 5 along the line of least resistance, i.e. the slope of the working part of it coincides with the direction of ice exposure. In this case, the ice begins to creep onto the sloping portion of beam 1, which cuts the ice and bends by an amount dependent on the flow pressure. The deflection of beam 1 is measured by strain gauges 2 and transmitted to the recording equipment 6. The performance of the proposed device makes it possible to increase its reliability, since in this case ice crawling onto the inclined part of the beam prevents the latter from breaking. Formula for measuring wave pressure and ice containing A measuring beam with a working part and strain gages mounted on it, characterized in that, in order to increase reliability, the measuring beam is installed with the possibility of rotation relative to the vertex ikalnoy axis and the operating part is inclined. Sources of information taken into account when examining 1. USSR author's certificate N 94161, cl. G 01 L 1/04, 1951.

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