SU1585702A1

SU1585702A1 - Installation for investigating action of vibration of hydrodynamic characteristics of channels

Info

Publication number: SU1585702A1
Application number: SU884406634A
Authority: SU
Inventors: Николай Федорович Линский; Георгий Константинович Овчаренко; Сергей Анатольевич Шевченко
Original assignee: Институт технической механики АН УССР
Priority date: 1988-04-22
Filing date: 1988-04-22
Publication date: 1990-08-15

Abstract

Изобретение относитс к исследовани м вли ни вибрации на гидродинамические характеристики каналов. Цель изобретени - повышение информативности исследований и расширение разновидностей исследуемых каналов. Установка содержит вибратор 1, установленное на его столе 2 основание, выполненное в виде двух параллельно расположенных и жестко св занных между собой штангами 3 плит 4, 5, инерционный элемент 6, выполненный в виде пластины и установленный посредством направл ющих 7 втулок на штангах 3 между плитами 4, 5 с возможностью перемещени между ними при колебани х. Установка снабжена упругой подвеской 8 инерционного элемента 6, выполненной в виде пар пружин равной жесткости, расположенных на направл ющих 7 между плитами 4, 5 и инерционным элементом 6, двум герметичными камерами 9, 10 дл размещени в них элементов 11, 12, образующих исследуемые каналы, которые установлены между плитами 4, 5 зеркально симметрично относительно инерционного элемента 6. Она содержит также средства 13, 14 подвода и отвода текучей среды к каналам и средства 15, 16 дл соединени элементов 11, 12 с основанием и инерционным элементом. Дл контрол положени инерционного элемента 6 служат датчики 17, 18 перемещени . Дл исследовани каналов, выполненных в виде установленных с зазором двух пластин, пространство каждой из герметичных камер 9, 10 вне исследуемых каналов заполнено эластичным, влагонепроницаемым материалом, в котором выполнены две полости подвода и отвода текучей среды. Изобретение позвол ет повысить информативность исследований за счет обеспечени возможности исследовани вли ни вибрации на параметры течени через каналы, вли ни различных типов упругих св зей на гидродинамические характеристики каналов различных разновидностей. 1 з.п. ф-лы, 2 ил.The invention relates to the study of the effect of vibration on the hydrodynamic characteristics of channels. The purpose of the invention is to increase the informativeness of research and expand the varieties of the channels studied. The installation comprises a vibrator 1, a base mounted on its table 2, made in the form of two plates 4, 5 parallel and rigidly connected to each other by means of rods 3, an inertial element 6 made in the form of a plate and installed by means of guides 7 bushings on rods 3 between plates 4, 5 with the ability to move between them during vibrations. The installation is equipped with an elastic suspension 8 of an inertial element 6, made in the form of pairs of springs of equal rigidity, located on the guides 7 between the plates 4, 5 and the inertial element 6, with two hermetic chambers 9, 10 for accommodating elements 11, 12 forming the channels under study which are mounted between the plates 4, 5 mirror-symmetrically with respect to the inertial element 6. It also contains means 13, 14 for supplying and discharging fluid to the channels and means 15, 16 for connecting the elements 11, 12 with the base and the inertial element. To control the position of the inertia element 6, displacement sensors 17, 18 are used. To study the channels made in the form of two plates installed with a gap, the space of each of the sealed chambers 9, 10 outside the channels under study is filled with an elastic, moisture-proof material, in which two supply and discharge cavities are made. The invention makes it possible to increase the informative value of research by providing the possibility of studying the influence of vibration on flow parameters through channels, the influence of various types of elastic connections on the hydrodynamic characteristics of channels of various varieties. 1 hp f-ly, 2 ill.

Description

3 13 1

меита 6 служат датчики 17, 18 перемещени . Дл исследовани каналов, выполненных в виде установленных с зазором двух пластин, пространство каждой из герметичных камер 9, 10 вне исследуемых каналов заполнено эластичным, влагонепроницаемым материалом , в котором выполнены две полости подвода и отвода текучей средыMeita 6 serve as sensors 17, 18 movement. To study the channels made in the form of two plates installed with a gap, the space of each of the sealed chambers 9, 10 outside the channels under study is filled with an elastic, moisture-proof material, in which two cavities are provided for supplying and discharging the fluid

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Изобретение позвол ет повысить информативность исследований за счет обеспечени возможности исследовани вли J ни вибрации на параметры течени че- рез каналы, вли ни различных типов упругих св зей на гидродинамические .характеристики каналов различных разновидностей . 1 з.п. ф-лы, 2 ил. 10The invention makes it possible to increase the informativity of the studies by making it possible to study the influence of vibration on the flow parameters through the channels, the influence of various types of elastic bonds on the hydrodynamic characteristics of the channels of various varieties. 1 hp f-ly, 2 ill. ten

Изобретение относитс к испыта- тельной технике, а именно к исследованию вли ни вибрации на гидродина мические характеристики каналов, и может быть;использовано например, при определении вли ни вибрации на плотность клапанных пар.The invention relates to a testing technique, in particular to the study of the effect of vibration on the hydrodynamic characteristics of channels, and can be used, for example, in determining the effect of vibration on the density of valve pairs.

Цель изобретени - повышение информативности исследований.The purpose of the invention is to increase the information content of research.

На фиг. 1 изображена схема установки дл исследовани вли ни виб- рации на гидродинамические характеристики каналов, представл ющих собо клапанные пары; на фиг. 2 - схема установки дл исследовани вли ни . вибрации на гидродинамические харак- теристики каналов, выполненных в вид установленных с зазором двух пластинFIG. Figure 1 shows a diagram of the installation for studying the effect of vibration on the hydrodynamic characteristics of the channels representing valve pairs; in fig. 2 is a diagram of an installation for examining effects. vibrations on the hydrodynamic characteristics of channels made in the form of two plates installed with a gap

Установка содержит вибратор 1, установленное на его столе 2 основание , выполненное в виде двух параллельно расположенных, жестко св зан- ньгх между собой штангами 3 плит 4 иThe installation contains a vibrator 1, a base mounted on its table 2, made in the form of two parallelly arranged, rigidly connected to each other with the rods 3 plates 4 and

5,инерционный элемент 6, выполненньй в виде пластины и установленный посредством направл ющих 7 втулок на штангах 3 между плитами 4 и 5 с возможностью перемещени между ними при колебани х. Установка снабжена упругой подвеской инерционного элемента5, an inertial element 6, made in the form of a plate and mounted by means of guides 7 bushings on the rods 3 between the plates 4 and 5, is movable between them during oscillations. The installation is equipped with an elastic suspension of the inertial element

6,выполненной в виде пар пружин 8 равной жесткости, расположенных на направл ющих 7 между плитами 4 и 56, made in the form of pairs of springs 8 of equal rigidity, located on the guides 7 between plates 4 and 5

и инерционным элементом 6, двум герметичными камерами 9 и 10 дл размеand an inertial element 6, two hermetic chambers 9 and 10 for the size

щени в них элементов 11 и 12, образующих исследуемые каналы, которые установлены между плитами 4 и 5 зер- кально симметрично относительно инерционного элемента 6. Установка также содержит средства (штуцеры). 13 и 14 подвода и отвода текущей среды к ка- налам и средства 15 и 16 дл соединени элементов 11 и 12, образующих каналы, с плитами 4 и 5 и инерцион- Elements in them 11 and 12, forming the channels under study, which are installed between plates 4 and 5 mirror symmetrically with respect to the inertial element 6. The installation also contains means (fittings). 13 and 14 for supplying and discharging the flowing medium to the channels and means 15 and 16 for connecting the elements 11 and 12 forming the channels with the plates 4 and 5 and the inertia

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25 п 25 p

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ным элементом 6. Дл контрол положени инерционного элемента 6 установка снабжена датчиками 17 и 18 перемещени . element 6. To monitor the position of the inertial element 6, the installation is equipped with displacement sensors 17 and 18.

Элементы 11 и 12, образующие исследуемые каналы в установке, изображенной на фиг. 1, выполнены в виде седла и клапана клапанной пары, что вл етс частным случаем исполнени канала, когда вход расположен в центре , а выход - по периметру.Elements 11 and 12, which form the channels under study in the installation shown in FIG. 1, is made in the form of a seat and a valve of a valve pair, which is a special case of the channel, when the inlet is located in the center and the outlet is around the perimeter.

В установке дл исследовани каналов , выполненных в виде установленных с зазором двух пластин 19 и 20 (фиг. 2), пространство каждой из герметичных камер 9 и 10 вне исследуемых каналов заполнено эластичным влагонепроницаемым материалом 21, в кото- ром выполнены две полости 22 и 23 подвода и отвода текучей среды. Применение эластичного влагонепроницаемого материала 21 обусловлено необходимостью исключени .возможности протекани текучей среды со входа на выход помимо непосредственно каналов 24 и 25 при колебани х инерционного элемента 6.In an installation for examining channels made in the form of two plates 19 and 20 installed with a gap (Fig. 2), the space of each of the sealed chambers 9 and 10 outside the channels under study is filled with an elastic, moisture-proof material 21, in which two cavities 22 and 23 are made supply and removal of fluid. The use of an elastic, moisture-proof material 21 is necessitated by the need to eliminate the possibility of fluid flow from the inlet to the outlet, in addition to the channels 24 and 25 itself, when the inertial element 6 oscillates.

Дл обеспечени необходимого рассто ни между инерционным элементом 6 и плитами 4 и 5 установка снабжена поджимньши гайками 26;In order to provide the necessary distance between the inertial element 6 and the plates 4 and 5, the installation is equipped with compression nuts 26;

Установка работает следующим образом .The installation works as follows.

С помощью средств 15 и 16 элементы 1 1 и 12 или 19 и 20, образующие исследуемые каналы, соедин ют с инерционным элементом 6 и плитами 4 и 5 основани , которые монтируют так, чтобы инерционньй элемент 6 имел возможность колебаний между плитами 4 и 5, а исследуемые каналы 11 и 12 или 24 и 25 располагались внутри герметичных камер 9 и 10, расположенных зеркально-симметрично относительно инерционного элемента 6.Using means 15 and 16, elements 1 1 and 12 or 19 and 20, forming the channels under study, are connected with inertial element 6 and base plates 4 and 5, which are mounted so that inertia element 6 has the possibility of oscillations between plates 4 and 5, and the investigated channels 11 and 12 or 24 and 25 were located inside the sealed chambers 9 and 10, located mirror-symmetrically relative to the inertial element 6.

Зат жкой гаек 26 устанавливают требуемое рассто ние между инерционным элементом 6 и плитами 4 и 5 основани . Контроль положени инерционного элемента 6 относительно плит 4 и 5 основани осуществл етс датчиками 17 и 18 перемещений. К штуцерам подключают систему подвода и отвода текучей среды и элементы ее контрол (не показаны ) . Поскольку основание жестко св зано со столом 2 вибратора 1, а упруга подвеска инерционного элемента 6 выполнена в виде пар пружин 8 равной жесткости, то при колебани х стола 2 пластина инерционного элемента 6 начинает колебатьс относительно плит 4 и 5 основани вдоль направл ющих 7 с частотой, равной частоте колебаний стола 2 вибратора 1. Амплитуды колебаний пластины инерционного элемента 6 относительно положени равновеси , установленного до приложени вибронагрузки , будут равны, так как при1585702By tightening the nuts 26, set the required distance between the inertial element 6 and the base plates 4 and 5. The position of the inertia element 6 relative to the plates 4 and 5 of the base is monitored by displacement sensors 17 and 18. Connect the system of supply and removal of fluid medium and its control elements (not shown) to the fittings. Since the base is rigidly connected to the table 2 of the vibrator 1, and the elastic suspension of the inertial element 6 is made in the form of pairs of springs 8 equal to rigidity, when the table 2 oscillates, the plate of the inertial element 6 begins to oscillate relative to the base plates 4 and 5 along the guides 7 with a frequency equal to the oscillation frequency of the table 2 of the vibrator 1. The amplitudes of the oscillations of the plate of the inertial element 6 relative to the equilibrium position established before the application of the vibration load will be equal, since at 1585702

видности исследуемых каналов путем исследовани как клапанных пар, та и каналов, образованных зазором ме двум пластинами.the visibility of the channels studied by examining both the valve pairs and the channels formed by the gap between the two plates.

ФF

10ten

ормула изобретениformula of invention

Claims

1. Installation for investigation of vibration in the hydrodynamic characteristics of the channels, containing in a rator, a base mounted on its table, made in the form of two parallel-arranged, rigidly interconnected by means of plates, 5 inertial element, located between the plates with the possibility of movement between them during oscillations, the suspension of the inertial element is sealed (about a chamber for placing 20 of the object under study, means for supplying and draining the fluid to the cannel, and means for connecting the elec- The channel, with the base and the inertial element, is about the stiffness of the elastic connection of the plate, 25 liters, so that from the depth of the inertial element 6 with the slab, to increase the informativity, 4 is equal to the reduced stiffness of the elastic connection of the plate of the inertial element 6 with plate 5, therefore, with oscillations, the equilibrium position of the plate of the inertial element 6 does not shift relative to the static equilibrium position. Thus, the effect of changing the value of the average channel cross section due to the displacement of the equilibrium position B on an increment of fluid flow through the channel.

The use of the proposed installation allows studies of the effects of vibration on flow parameters through channels (for example, studies of the amplitude of the channel cross section for flow, the study of the effect of various types of elastic connections on the hydrodynamic characteristics of the channels, etc.) . to increase the informativeness of the research, as a result of which the expansions are expanded, it is equipped with a second sealed chamber to accommodate the second channel under study, 30 interspaced with mirror-symmetrical plates with the first chamber relative to the inertial element, the inertial element is designed in the form of a plate and installed by means of guides on the rods, and the elastic suspension is in the form of pairs of springs of equal stiffness, located on the guides between the plates and the inertial element. .

2. Installation under item 1, about tl and - with the fact that, in order to expand the varieties of the investigated channels, the space of each of the sealed chambers outside the studied D5 channels is filled with an elastic moisture-proof material, in which two cavities are made in the areas of inlet and outlet fluid medium.

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1585702

the visibility of the channels studied by examining both the valve pairs and the channels formed by the gap between the two plates.

F

formula of invention

1. Installation for studying the effect of vibration on the hydrodynamic characteristics of the channels, containing a vibrator, a base mounted on its table, made in the form of two parallel, rigidly connected with each other plates of plates, an inertial element located between the plates with the ability to move between them during oscillation x, elastic suspension of the inertial element, sealed (about the chamber for placing the object under study, means for supplying and discharging fluid to the canel and means for connecting the element c forming a channel with a base and an inertial element, so that with the aim of increasing the informativity of the instrument it is equipped with the second sealed chamber for placing the second channel under study, installed 30 between the plates, is mirror-symmetrical with the first chamber relative to the inertial element, the inertial element is made in the form of a plate and installed by means of guides on the rods, and the elastic suspension is fixed in the form of pairs of springs equal to stiffness located on the guides between the plates and the inertial element. .

2. Installation under item 1, about tl and - with the fact that, in order to expand the varieties of the investigated channels, the space of each of the sealed chambers outside the 5 channels is filled with an elastic moisture-proof material, in which two cavities are made in the areas of inlet and outlet fluid medium.

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Editor A.Revin

Compiled by V.Pastushiy

Tehred L. Oliynyk Proofreader T. Paliy

Order 2322

Circulation 441

VNIIPI State Committee for Inventions and Discovery under the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., D. 4/5

Production and Publishing Combine Patent, Uzhgorod, GGag1yr1 st

FIG. 2

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